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Whether high hardness products will be difficult to produce during the production process is also a concern for many customers. If the hardness requirements of the product are relatively high, whether it can achieve the desired effect is very important! Is it easier to produce products with higher hardness in the silicone industry? Is there such a statement. From the perspective of silicone product manufacturers, the hardness range and effectiveness of silicone products are the core focus, and for producing products with high hardness materials, it is also necessary to see if they are suitable for your product. Therefore, the methods required for each product are different depending on its structure. If your product is relatively simple, with high wheel angles and thickness on the structure, it is not easy to tear, and high hardness products can be adapted to it! High hardness products are suitable for use with simple structures that are not easily folded or torn. However, with the continuous advancement of technology, some processing problems of high-hardness silicone are gradually being solved. For instance, by improving the production process, adding special additives or using new types of silicone materials, the processing performance and product quality of high-hardness silicone can be enhanced.  

Silicone gaskets, due to different application environments, have become a phenomenon in various fields. They cannot be used for a long time and have different effects. For example, some buffer gaskets are subjected to long-term stress and compression, and their lifespan is greatly reduced due to environmental factors. However, when it comes to material selection, have you really distinguished between silicone and rubber materials?   When it comes to silicone and rubber materials, both can be used in the same application environment. However, with changes in physical environment and requirements, the performance of the two materials may differ significantly, but it takes time to show. Therefore, in order to avoid consumers encountering this phenomenon, it is completely possible to prevent it in advance and judge the difference in materials. Silicone rubber products are not easy to distinguish from rubber products in terms of odor, texture, color, hardness, and softness. Generally, they can be distinguished with the naked eye. However, if you are not confident, you can use fire. If the smoke is black and pungent, it is rubber, and if the smoke is white, it is silicone material.   At present, silicone rubber gasket products have been widely used in various fields and are practical in different industries, including daily life. Therefore, the judgment of material is important because pure rubber has a certain harm to the human body and the impact is not significant. However, there are differences in the properties of the material and the price. Therefore, the distinction between daily silicone gaskets and silicone products is still quite important. Silicone material is an environmentally friendly and non-toxic chemical material that can be used in different occasions and regions, while rubber material is different. It is mainly used for industrial manufacturing, electronic internal components, and has little contact with daily necessities. Therefore, in synthetic rubber, as a material that comes into contact with the human body, silicone rubber raw material is basically used. Its good chemical stability, flexibility, and service life are considered excellent materials, and judging its authenticity is a relatively important issue!

Raw material selection and modification Selecting appropriate silicone rubber varieties: Methyl vinyl silicone rubber has good comprehensive performance and can be optimized in terms of vinyl content, molecular weight, and distribution. For example, methyl vinyl silicone rubber with an vinyl content of 8% -15% can form more uniform crosslinking points and improve toughness. Introducing modified fillers: Nano scale gas-phase white carbon black is a common reinforcing filler, which can form a three-dimensional network structure when added at a dosage of 25-35phr. It can also be used in combination with other nano fillers such as carbon nanotubes and nano titanium dioxide to further improve toughness. Adding toughening agent: Hydroxy terminated polydimethylsiloxane is an effective toughening agent, usually used in an amount of 8-12 phr. It can undergo reversible phase separation under stress, absorb energy, and improve toughness. Optimization of cross-linking system Choosing the appropriate catalyst: Platinum catalyst has high activity and controllability, which can achieve a more uniform cross-linked network and improve toughness. Control crosslinking density: Reasonably control the dosage of crosslinking agent and vulcanization process parameters to maintain the crosslinking density within an appropriate range, such as generally controlled at around 4 × 10 ⁻⁶ mol/cm ³. Process parameter control Rubber mixing process: Ensure uniform mixing of the rubber material, avoid local cross-linking or insufficient mixing, and control the mixing temperature and time to prevent premature vulcanization or performance degradation of the rubber material. Sulfurization process: Select appropriate vulcanization temperature and time based on the thickness, shape, and purpose of the product. For thick products, lower temperature and longer vulcanization time can be used to ensure sufficient vulcanization reaction and improve the toughness and strength of the product. Surface treatment and post-treatment Surface treatment: By using ion beam surface treatment and other methods, a nano level strengthening layer can be formed on the surface of silicone rubber products to improve surface hardness and wear resistance, thereby indirectly enhancing the toughness of the products. Post treatment: Proper post-treatment of vulcanized silicone rubber products, such as 24-hour stress relaxation treatment in a 120 ℃ silicone oil bath, can eliminate residual stresses inside the product, improve its dimensional stability and toughness.

Ordinary silicone rubber has good elasticity. Generally speaking, within the normal range of use (i.e. within the boundary between elastic deformation and plastic deformation), it can be well restored to its original shape. For example, common silicone rubber phone cases can mostly return to their original shape when subjected to external compression and deformation during normal use. This is because the molecular chain structure of ordinary silicone rubber is within the elastic limit, and the molecular chains can move freely between each other. When the external force is eliminated, the molecular chains can return to their original relatively ordered state.   Slight deformation If the silicone rubber product only undergoes slight deformation, that is, within its elastic deformation range, it can usually be fully restored. Elastic deformation refers to the deformation of a material under stress, and when the external force is released, the material can return to its original shape and size. For example, silicone rubber seals may experience slight compression during normal assembly, but as long as they do not exceed their elastic limit, they can return to their original sealing shape well after the external force is released. Excessive deformation (beyond the elastic range) When silicone rubber products undergo excessive deformation beyond their elastic range and enter the plastic deformation stage, they may not be able to fully restore their original shape. Plastic deformation refers to the inability of a material to fully recover its original shape after being subjected to force, and this deformation is irreversible. Taking thicker gaskets made of silicone rubber as an example, if they are excessively compressed for a long time during use, exceeding their elastic deformation capacity, the molecular chain structure may be damaged or rearranged to a certain extent, resulting in their inability to restore their original thickness and shape. Temperature Temperature has a significant impact on the elastic recovery of silicone rubber. Within the general temperature range of use, silicone rubber products have good elasticity. For example, at room temperature, ordinary silicone rubber toys can return to their original state after being pressed and deformed. But when the temperature is too high, the molecular chain movement of silicone rubber accelerates, and its elastic modulus decreases, which may prevent it from recovering well after deformation. If the temperature is too low, silicone rubber will harden, the movement of molecular chains will be restricted, and its elasticity will also decrease, resulting in a decrease in recovery ability. For example, silicone rubber products in low temperature environments (such as around -50 ℃) may experience slow or even incomplete recovery to their original shape after being deformed by external forces. Chemical environment If silicone rubber products are exposed to chemical substances such as organic solvents or strong acid and alkali environments for a long time, their performance may be affected. Some solvents may cause changes in the interactions between the molecular chains of silicone rubber, resulting in a change in its elastic modulus. For example, silicone rubber products soaked in organic solvents such as gasoline for a long time may experience some degree of expansion in their molecular chains, making it difficult to restore their original shape after deformation.

In daily life and industrial production, silicone plugs, as a common silicone product, play an important role in many fields due to their unique material properties. To fully understand it, it is necessary to delve into the scope of application and advantages and disadvantages of silicone plugs.   The application range of silicone plugs is extremely wide. In the field of daily life, it is the "capable assistant" of kitchen supplies. Various wide mouthed bottles, storage tanks, and hot water kettles are often equipped with silicone stoppers, which utilize their excellent sealing performance to isolate air and moisture, extend the shelf life of food, and prevent seasoning from getting damp and clumping. In the beauty and skin care industry, containers such as face cream bottles and essence bottles can not be sealed without silicone plugs, which can effectively prevent the volatilization and oxidation of the contents and maintain the stability of product quality. In the industrial field, silicone plugs also perform well. During the manufacturing process of electronic devices, silicone plugs are used to protect the sockets of circuit boards and interfaces of instruments from dust and water, in order to prevent equipment failure caused by external impurities; In automobile manufacturing, silicone plugs are used to seal oil and gas interfaces, ensuring stable operation of automotive systems and improving safety and durability.   The reason why silicone plugs can establish themselves in many fields is closely related to their significant advantages. From the perspective of material characteristics, silicone has good high and low temperature resistance, and can maintain stability in the temperature range of -60 ℃ to 200 ℃. Whether it is a hot water kettle or a low-temperature refrigerated container, silicone plugs are capable of sealing work. At the same time, silicone material is non-toxic, odorless, environmentally friendly, and meets food grade and medical grade standards, which is also the key to its wide application in kitchen, medical and other fields. In addition, silicone plugs have excellent elasticity and can tightly fit the container mouth, forming an effective sealing effect. They also have excellent aging resistance and are not easily deformed or cracked after long-term use. However, silicone plugs are not perfect either. One of its drawbacks is that the surface is prone to absorbing dust and impurities, especially light colored silicone plugs, which may affect their appearance after a period of use; Secondly, although silicone plugs are resistant to chemical corrosion, they may still experience performance degradation when exposed to special chemicals such as strong acids and bases for a long time; In addition, compared to some plastic plugs, the production cost of silicone plugs is relatively high, which also makes some price sensitive users have concerns when choosing.   Silicone plugs occupy a place in many fields due to their wide range of applications and distinct advantages and disadvantages. In practical applications, we need to fully leverage its advantages and make reasonable choices based on different usage scenarios and needs; At the same time, we should also face up to its shortcomings and take corresponding measures to improve or avoid it. With the continuous development of material technology, silicone plugs are expected to achieve further breakthroughs in performance in the future, bringing more convenience and possibilities to people's lives and production.

The significance of baking silicone products is multifaceted and crucial for ensuring their quality, functionality, and performance in various applications. Here are several key aspects that highlight the importance of baking silicone products: 1. Curing Process Baking is a critical step in the curing process for many silicone products. This process involves heating the silicone at specific temperatures and durations to transform it from a gummy or liquid state to a solid, stable form. Proper curing ensures that the silicone reaches its desired physical and chemical properties, such as: Durability: Baking helps silicone products become more resistant to wear and tear. Flexibility: Proper curing ensures that the silicone remains flexible, which is important for applications that require frequent bending or movement. Chemical Resistance: Baking can enhance the chemical resistance of silicone, making it suitable for use in environments with harsh chemicals. 2. Consistency and Uniformity Baking ensures that the silicone product has a consistent and uniform structure. This is particularly important for products that need to maintain specific dimensions and shapes, such as silicone molds, gaskets, and seals. The baking process helps to eliminate air bubbles and irregularities, resulting in a more reliable and consistent product. 3. Enhanced Performance Baking can enhance the overall performance of silicone products in several ways: Mechanical Strength: Proper curing through baking increases the mechanical strength of silicone, making it more resistant to compression, tension, and impact forces. Thermal Stability: Baking can improve the thermal stability of silicone, allowing it to withstand high temperatures without degrading. Electrical Insulation: For silicone products used in electrical applications, baking can enhance their electrical insulation properties, making them safer and more effective. 4. Volatile Organic Compound (VOC) Removal During the baking process, volatile organic compounds (VOCs) present in the silicone material are released. These compounds can otherwise lead to issues such as: Odor: VOCs can cause unpleasant odors that may be undesirable in certain applications. Health Risks: Some VOCs can be harmful to human health, and baking helps to eliminate these compounds, making the product safer to use. Surface Defects: VOCs can lead to surface defects and inconsistencies if not removed during the baking process. 5. Dimensional Stability Baking helps to stabilize the dimensions of silicone products. This is especially important for precision parts where even small dimensional changes can affect the fit and functionality. Proper baking ensures that the final product maintains its intended size and shape, leading to better performance and reliability. 6. Longevity and Service Life Silicone products that are properly baked tend to have a longer service life. This is because the curing process through baking ensures that the product is more resistant to environmental factors such as UV exposure, moisture, and temperature fluctuations. As a result, silicone products that have undergone proper baking are less likely to degrade over time. 7. Adhesion and Bonding For applications where silicone is used as an adhesive or sealant, baking can enhance adhesion and bonding properties. Properly baked silicone products will adhere better to surfaces and create a stronger, more durable bond, which is crucial in applications such as automotive seals, construction materials, and medical devices. 8. Regulatory Compliance In many industries, such as medical, automotive, and aerospace, there are strict regulatory standards that silicone products must meet. Baking is often a required step to ensure that the product complies with these regulations. Proper curing through baking ensures that the product meets the necessary performance, safety, and quality standards. Conclusion The significance of baking silicone products cannot be overstated. It ensures proper curing, enhances durability, improves performance, removes harmful VOCs, stabilizes dimensions, extends service life, and ensures regulatory compliance. By understanding and implementing the proper baking process, manufacturers can produce high - quality silicone products that meet the needs of various applications and industries.

Appearance Color: High quality food grade silicone products have pure and uniform colors, without obvious color differences or impurities. If the color is uneven or there are abnormal color spots, it may indicate that the silicone raw material is impure or impurities have been mixed in during the production process. Surface: The surface should be smooth and free of obvious defects such as bubbles, cracks, scratches, etc. Bubbles can affect the strength and sealing of products, cracks may be caused by poor raw material quality or improper molding processes, and scratches may affect the normal use and appearance of products. Transparency: If it is a transparent food grade silicone product, its transparency should be high, and the internal structure of the product can be clearly seen. Poor transparency may be due to excessive fillers or other impurities added to the silicone gel. Physical property Hardness: The hardness of food grade silicone products should be moderate, generally between Shore A30-70 degrees. The hardness of a product can be roughly judged by pressing its surface. High quality products should have a certain degree of elasticity and be able to quickly return to their original state after pressing. If it is too hard, it may affect the comfort and sealing during use; If it is too soft, it may cause the product to deform and break easily during use. Tensile strength and elongation at break: High quality food grade silicone products should have high tensile strength and elongation at break, indicating their good toughness and tensile resistance. A preliminary judgment can be made through a simple tensile test, such as stretching products by hand. High quality products should not break or deform excessively during the stretching process, and can recover to their original state after stretching. Flexibility: Food grade silicone products should have good flexibility and be able to bend and fold within a certain range without cracking or breaking. The product can be repeatedly bent and folded several times to observe if there are any signs of damage on its surface.   Chemical Non toxic and odorless: Food grade silicone products should be non-toxic and odorless, and will not release harmful substances to the human body. It can be preliminarily judged by smelling. If there is a pungent odor or peculiar smell, it is likely that the product quality is unqualified and contains harmful chemicals. Chemical corrosion resistance: Food grade silicone products should have a certain degree of chemical corrosion resistance and be able to withstand the erosion of common substances such as acids, alkalis, salts, etc. in food. You can soak the product in some common food acid-base solutions, such as vinegar, soy sauce, soda water, etc., and observe whether there are any changes on its surface, such as discoloration, expansion, shrinkage, etc.   Usage performance High temperature and low temperature resistance: Food grade silicone products typically require good high temperature and low temperature resistance to adapt to different food processing and storage environments. Products can be subjected to high and low temperature testing according to the product's instructions or relevant standards. For example, placing the product in a high-temperature environment (such as an oven at around 200 ℃) for a period of time to observe whether it undergoes deformation, discoloration, aging, and other phenomena; Place the product in a low-temperature environment (such as a refrigerator freezer at around -40 ℃) for a period of time and observe whether it becomes brittle or cracked. Sealing performance: For some food grade silicone products used for food storage or packaging, such as sealing caps, sealing rings, etc., sealing performance is very important. It can be judged through a simple sealing test, such as installing the product on the corresponding container, pouring a certain amount of water, and observing whether there is any leakage. Service life: High quality food grade silicone products should have a long service life and be able to maintain their performance and appearance for a long time under normal usage conditions. It can be judged through long-term observation, paying attention to whether the product has aging, wear, deformation and other problems during use.

What is the function of vulcanization treatment for silicone rubber products? In high-temperature workshops, uncured silicone is like soft rubber putty, while vulcanized products can withstand temperatures of thousands of degrees Celsius. This transformation from liquid to solid is the soul of silicone industrial applications. As the core process for optimizing the performance of organic silicon materials, vulcanization treatment reconstructs molecular chain cross-linking, endowing the material with key characteristics such as high temperature resistance, tear resistance, and aging resistance.   1.The structural revolution at the molecular level   The essence of vulcanization treatment is the process of establishing a three-dimensional network structure. Taking the sulfur vulcanization system as an example, crosslinking agents undergo condensation reactions with hydroxyl groups in silicone rubber, forming 3-5 crosslinking points per gram of silicone gel, resulting in a significant increase in tensile strength from 1.5 MPa to 8 MPa. In the medical field, platinum catalyzed addition crosslinked silicone catheters have a fracture elongation of up to 400%, far exceeding traditional process products. Even more ingenious is the dynamic vulcanization technology, where TPV (SBS/SEBS) materials achieve multiple recycling through reversible cross-linking, solving the problem of difficult degradation of thermoplastic elastomers.   The crosslinking density directly affects the material properties. When the distance between crosslinking points is shortened from 5nm to 2nm, the fatigue life of silicone increases by three times, which is the key reason why automotive engine seals use high crosslinking density silicone. In electronic component packaging, nanoscale cross-linked structures can stabilize the dielectric constant below 2.8, ensuring signal integrity of 5G communication devices in environments ranging from -55 ℃ to 200 ℃.   2.Directional regulation of functional characteristics   Different vulcanization systems give rise to differentiated performance. The sulfur vulcanization system endows the material with high elasticity and is suitable for flexible components such as buttons and sealing rings; Peroxide vulcanization improves heat resistance, allowing car lampshades to work for a long time at 200 ℃; The sulfur free crosslinking of platinum catalytic system has achieved biocompatibility (cytotoxicity ≤ 0.1) of implantable cardiac pacemaker silicone. In the field of photovoltaics, the refractive index of two-component vulcanized silicone can be adjusted within the range of 1.40-1.55, making it an ideal choice for efficient packaging materials.   Special craftsmanship creates unique value. The irradiation vulcanization technology enables molecular cross-linking of silicon film under electron beam irradiation, and this cold processing method is particularly suitable for precision optical lens manufacturing. The surface energy of silica gel after plasma treatment is increased to 72mN/m, achieving a coating adhesion level of 4B standard. A semiconductor company has achieved zero particle detachment in a wafer etching machine using plasma sulfurization treated sealing rings, resulting in an 18% increase in yield rate.   3.Breakthrough in performance of application scenarios   In extreme environments, vulcanized silicone exhibits extraordinary resistance. The spacecraft sealing ring needs to withstand a vacuum environment of -100 ℃ and a thermal cycle of 400 ℃. The fluorosilicone rubber that has undergone secondary vulcanization can maintain a compression permanent deformation of ≤ 15%. The phenyl silicone rubber used in deep-sea exploration equipment can maintain sealing performance at a depth of 11000 meters by enhancing its compressive strength through phenyl cross-linking. The actual measurement data of a deep-sea probe shows that its vulcanized silicone seal has worked continuously for 2000 hours without leakage in the simulated Mariana Trench environment.   Emerging fields give rise to innovative applications. Solid state batteries are coated with ceramic and silicone gel, and a gradient cross-linking layer is formed through in-situ vulcanization to reduce the interface impedance to 5 Ω· cm2. In 3D bioprinting, UV cured vulcanized silicone can achieve a layer thickness accuracy of 0.1mm, and the burst pressure of vascularized tissue scaffolds can reach 300mmHg. In the food industry, the total amount of migration of peroxide vulcanized silica gel is less than 0.5mg/kg, which fully complies with the EU/1935/2004 food contact material standard.   4.Green Technology and Future Evolution   Environmental pressure drives technological innovation. The sulfur free sulfurization system adopts radiation sulfurization or peroxide/radiation synergistic sulfurization to reduce VOC emissions by 90%. The industrialization of bio based vulcanized silicone has begun, and a certain enterprise has reduced the carbon footprint of its products by 42% by using plant-based silane coupling agents. A more cutting-edge approach is 4D printing of vulcanized silicone gel, which achieves adaptive deformation of implants triggered by body temperature through the cross-linking gradient design of shape memory polymers.   When the vulcanization process meets artificial intelligence, material development enters a new era. The machine learning model can shorten the formula development cycle from 3 months to 72 hours by analyzing 100000 sets of vulcanization parameters. The intelligent vulcanization system developed by a certain tire enterprise reduces the standard deviation of product consistency from 0.3 to 0.08 by monitoring the fluctuation of cross-linking density online. This digital upgrade not only improves efficiency, but also endows materials with dynamic adaptability - future vulcanized silicone may be able to autonomously adjust the cross-linking state according to the usage environment.

Silicone buttons include single point silicone buttons, remote control silicone buttons, conductive silicone buttons, mobile phone silicone buttons, light touch silicone buttons, transparent silicone buttons, keyboard buttons, password machine buttons, car buttons, film buttons, laser engraved buttons, reset buttons, home buttons, PC buttons, learning machine buttons, pose machine buttons, password machine buttons, digital product buttons, p+r buttons, etc.   In the production process of silicone buttons, especially when producing thinner buttons, the next step is to remove the edges, which sometimes makes it very easy to break. So what is the reason for this situation?   1. The temperature during molding is too high. Silicone buttons become brittle when the temperature is too high during molding, and are prone to cracking and defects after demolding. 2. The operation method during demolding is incorrect. When demolding, many mold makers have not received professional training or are not careful in their work. They do not follow strict operation instructions to demold, which can lead to the breakage of silicone buttons. 3. Incomplete vulcanization of silicone buttons. When the temperature of the silicone button molding mold is too low or the vulcanization time is too short, it will cause the product to adhere tightly to the mold and be difficult to demold. 4. The silicone material used is too poor. Some factories blindly reduce costs and use inferior silicone button raw materials, resulting in poor quality silicone buttons, poor rubber material, poor toughness, and memory rupture. 5. Poor release of silicone buttons during mold lifting can cause the product to break during the lifting process. 6. Mold cavities with rough surfaces or accumulated dirt are not conducive to demolding, and molds that are difficult to demold are prone to breakage.

Nowadays, the application of silicone products is very extensive in China, especially in kitchen supplies. Silicone kitchenware brings greater commercial and practical value. This is our continuous investment in research and development technology to develop lined silicone products, accelerate the development and progress of our own technology, and strengthen the development of high-performance and high use silicone products. Silicone kitchenware undoubtedly uses silicone as the raw material, and the main component of silicone is a natural ingredient that exists in sand, stone, and crystals. Silicone is like tempered glass that people usually see. It is non-toxic, colorless, odorless, and does not dissolve solvents other than water, strong alkali, and sulfuric acid. Its chemical properties are very stable, so silicone kitchenware is very environmentally friendly and zero polluting. Compared to other iron, stainless steel plates, and porcelain kitchen utensils, silicone kitchenware also has many beloved advantages. Silicone is a raw material for enzyme adsorption, which has high wear resistance, flexibility, corrosion resistance, temperature adaptability, and high temperature resistance. Therefore, it is not easy to produce difficulties such as rust, heat, and breakage during the entire process of use. In addition, silicone kitchenware also has high temperature adaptability, so it can be used in both hot and cold drinks in daily life. And it can also have the function of insulation and heat preservation in the cold winter, and in addition to insulation and heat preservation, it will not burn the hands of the user. People generally accept the use of silicone kitchenware, which is inevitable and a trend. Not only is silicone material so excellent, but also the benefits and convenience that silicone kitchenware brings to people's daily lives. The above is all about why silicone kitchenware is so popular.