China Xiamen Juguangli Import & Export Co., Ltd Company News

What is food grade silicone? What are the advantages? Food-grade silicone is environmentally friendly, non-toxic, food-grade silicone, food-grade silicone is widely used in life, such as silicone kitchenware, silicone adult products.   Food grade silicone with its soft and elastic feel, rich and diverse colors, gradually replacing steel, stainless steel, plastic and other materials. There are two main categories of food-grade silicone products: pure silicone products and silica-containing products.   Food-grade silicone has the following advantages:   Food grade silicone is rich in color. Food grade silica gel raw material is transparent, its color can be adjusted by food grade color masterbatch, food grade color masterbatch is diverse, so the color of food grade silica gel is also rich and colorful.   Food grade silicone is soft and comfortable, elastic, giving a comfortable touch and will not deform.   Food grade silicone has a wide temperature range and can be used at -40 degrees to 280 degrees.   Food grade silicone has a long service life. Food grade silicone can be used for a long time without yellowing, aging resistance and degradation.   Food grade silicone is easy to clean. Food grade silicone products can be cleaned by rinsing in clean water, and can also be cleaned with washing liquid.   Food-grade silicone products manufacturers are used to manufacture a variety of daily necessities, which enrich people's lives and improve people's quality of life.   With the rise of food-grade silicone in foreign countries, its health and safety performance has been proved, domestic manufacturers have also begun to replace the original plastic materials, and mainly used in maternal and child products, but there are also some businesses will be innovative use of the material in daily necessities, such as cups, bowls, baking molds, steam cages and so on. At the same time, it also forms a combination with other materials, and a variety of materials such as ceramic silica gel and glass silica gel appear. While beautiful and durable, it highlights the concept of healthy living and environmental hygiene.   Food-grade silicone has strong stable properties and is more in line with the requirements of healthy and safe life. In fact, food grade silicone has been found in ordinary people's homes, the most common is the gasket used for sealing in the pressure cooker, which is easy to clean and non-toxic. At present, the food grade silicone product levels mainly involved in the market are mainly divided into drug grade silicone and food grade silicone, but it needs to be certified by the State Food and Drug Administration. Infant and toddler products on the market in China generally follow three national standards: China, the United States, and Europe. Experts suggest that when purchasing, you need to know what national standards the product is implemented, and whether it is certified by the National Food and Drug Administration or a third-party testing agency to ensure that it is genuine.

What is the difference between silicone products and rubber products? Silicone products and rubber products play an important role in our daily life, and they each have unique characteristics and uses. Although both are elastic materials, there are obvious differences in composition, properties, uses and production processes.   First of all, from the perspective of composition, silicone products are mainly made of porous solid polymer materials obtained after drying and dehydration of silicone gel, and its main component is silicon dioxide. Rubber products are made of natural rubber or synthetic rubber through processing, and its main component is rubber hydrocarbon. This difference in composition makes the two different in physical and chemical properties.   Secondly, silicone products and rubber products have obvious differences in physical properties. Silica gel has better stability, weather resistance and high and low temperature resistance, and can be used for a long time in the range of -60 ° C to 250 ° C. In addition, silica gel also has excellent electrical insulation properties and chemical stability, and is not easily affected by the environment. Rubber has good elasticity and wear resistance, but in high or low temperature environments, its performance may be affected.   In terms of use, silicone products are widely used in medical treatment, baby bottles, pacifiers, high voltage wire skin and other fields because of its excellent performance. For example, medical silicone products are non-toxic and tasteless, chemically stable, and have good histocompatibility with the human body, so they are widely used in the production of medical devices and implants. Rubber products are widely used in tires, seals, soles and other fields because of their good elasticity and wear resistance.   Finally, from the production process point of view, there are also differences in the manufacturing process of silicone products and rubber products. The production process of silicone products usually includes raw material mixing, molding, curing, post-treatment and other steps, of which the curing process can be achieved by vulcanization or hot pressing. The production process of rubber products may involve more processes, such as rubber mixing, calendering, molding, vulcanization, etc.   In summary, there are significant differences between silicone products and rubber products in terms of composition, properties, uses and production processes. Understanding these differences helps us to better select and use these two materials to meet the needs of different fields.

What are the molding methods of silicone products? Silicone products are widely used in various fields because of their excellent physical properties, chemical properties, etc. In the process of manufacturing silicone products, molding is a crucial step.   1. Injection molding Injection molding is a more common method of molding silicone products. The method is to inject liquid silica gel into the heated silica gel material, and then form the desired shape of silica gel product in the mold through high temperature and high pressure processing. Compared with other forming methods, injection molding method has high accuracy, high material utilization rate, and can be automated production.   2. Calendering forming method The calender forming method is to calender silica gel into a sheet shape, and then form a product by die-cutting. Its production process is simple, low cost, suitable for the production of some simple silica gel products, such as silica gel sheet and silica gel strip.   3. Molding method The molding method is to press the silicone material into the mold, and use the high temperature and high pressure processing method to make the silicone material formed. The method is suitable for the production of medium-sized silicone products, such as silicone sealing rings, silicone pipes, etc.   4. Electrostatic spraying forming method Electrostatic spraying molding method is to spray silicone evenly on the surface of the appliance and cure naturally in the air, and can be released after silicification to get the desired silicone products. The method has high production efficiency and is suitable for mass production of silica gel products.

It is said that the silicone material has a big disadvantage is that the toughness is not good, and it is careful to encounter sharp sharps, and with the industry application of all walks of life, the demand for silicone gaskets, silicone flakes and other thin materials is gradually increasing, so the relatively thin product tear resistance has become the trouble of many friends. The silicone gasket purchased is easy to tear and easy to be not durable enough, etc., so combined with various reasons, it can still be identified as caused by several factors!   Tear is the core performance of silicone products, so the tear resistance from the addition of raw material silicone resin in the baking curing process has a great reason! For example, room temperature curing for 24 hours, 130 degrees baking curing difference is relatively large, so the most fundamental reason is the baking time problem, time and temperature do not conflict, but to achieve the same condition of the effect of common, so high temperature baking curing and room temperature curing for a long time will have a great difference, so the raw materials occupy most of the factors! Secondly, silicone products manufacturers in the production vulcanization process, the reason for the tear strength or the production process, the general normal temperature, the normal time can avoid the phenomenon of easy tearing, and in the abnormal processing production time and temperature may cause the phenomenon of poor tearing degree! For example, the staff want to increase the output, the temperature of the machine to reduce the time of vulcanization this method is not feasible for thinner, smaller products, first of all, easy to cause the product is too brittle, poor tear resistance, followed by the mold too early prone to the phenomenon of immature products, so the feasible method is normal processing when adjusted, don't have a lucky mind, easy to bad things!

Are rubber products insulated? Rubber is an insulator. Substances that are not good at conducting current are called insulators, and insulators are also called dielectrics. Insulators can be divided into gases (such as hydrogen, oxygen, xenon, and all non-ionizing gases), liquids (such as pure water, paints, organic acids, etc.), and solids (such as glass, ceramics, rubber, paper, quartz, etc.).   Are rubber products insulated? Most are insulating, but a small amount can be conductive; Rubber refers to a highly elastic polymer material with reversible deformation, which is elastic at room temperature, can produce a large change under the action of a small external force, and can be restored to the original state after removing the external force. Rubber is a completely amorphous polymer, its glass transition temperature is low, the molecular weight is often large, greater than hundreds of thousands. Rubber is divided into natural rubber and synthetic rubber and other two kinds of rubber. Natural rubber is processed from gum extracted from rubber trees, rubber grass and other fine substances: synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in all aspects of industry or life.   Some rubber products are insulated, the general cable rubber, the insulation board of the power distribution room are made of rubber, and some rubber products require a relatively high insulation coefficient, which mainly depends on the environment and application field you use.

Silicone products aging affected by what, silicone products are a common class of products in life, has a very rich variety, can give people help in many areas. Silicone products are the same as some other products, there will be the concept of service life, silicone products will age after a long time of use, and silicone products aging is also affected by some factors.   If the silicone jewelry in the normal use process, the impact of the environment is on the one hand, silicone products are usually subject to oxidation, thermal light, strength, liquid these aspects will have a certain impact on the aging life, after studying the surface of these aspects of the aging of silicone products as follows:   Oxidation: In ozone silicone products with time changes, resulting in the destruction of the material performance is larger, silicone molecular chain compounds are different, resulting in changes in the performance of silicone products, there will be low efficiency to change the material properties of silicone jewelry, you will find that your silicone strap may slowly appear deformation, slow rebound phenomenon!   Photoheat: The influence of photoheat mainly comes from the appearance, long-term exposure to ultraviolet light and light source may lead to the expansion of silicon atoms, the phenomenon of surface discoloration, but there is no change in the short-term exposure to light and heat.   Strength: The impact of the force is more serious, the product long-term tensile extrusion, over time, the silicon molecular chain in the material is damaged and cannot be restored, and there is no resilience after long-term stretching, tensile force decline or even tensile break.   Liquid oil: silica gel is a highly adsorbent material insoluble in water and any liquid, but long-term contact with water will lead to water molecules infiltrating into the silica gel and destroy the basic performance of the material, resulting in a decline in the performance of rubber products and even discoloration, deformation.

Can silicone products be recycled, with the progress of science and technology and the enhancement of environmental awareness, more and more items began to be included in the recycling system, silicone products is one of them. Silicone, as a widely used material, its products can be seen everywhere in daily life, such as baby pacifiers, kitchenware, mobile phone covers and so on. So, can silicone products be recycled?   Silica gel itself is a renewable resource, and its recycling process is relatively simple, mainly through physical or chemical methods to break it down into reusable materials. After the recovered silicone is processed, it can be used again to make new silicone products, so as to achieve the recycling of resources. This not only reduces the need for new resources, but also reduces the environmental pollution caused by the production of new silicone products.   However, it is important to note that not all silicone products can be recycled directly. Some silicone products may have other materials or additives added, making their recycling process complicated. In addition, the recycling of silicone products is not currently popular in all areas, and some areas may not have established a perfect recycling system. Therefore, for the recycling of silicone products, we need to judge and operate according to the specific situation.   In the process of promoting the recycling of silicone products, in addition to the need to establish a more perfect recycling system, it is also necessary to improve the public's environmental awareness and participation. Only when more people realize the importance of silicone products recycling, and actively participate in the recycling action, the recycling of silicone products can be better promoted.   Silicone products can be recycled, which is in line with our environmental protection concept and sustainable development strategy. In the future, with the progress of technology and the improvement of environmental awareness, I believe that the recycling of silicone products will be better developed and improved, and make greater contributions to protecting the environment and saving resources.

Silicone products, as a widely used in medical, home, baby products, kitchen utensils and other fields of material, its antibacterial performance has been concerned.   First of all, silicone products have natural antibacterial properties. The silicone material itself has a certain antibacterial effect, which can inhibit the growth and reproduction of bacteria. This is due to the microstructure and chemical properties of the surface of the silica gel material, so that it has a certain repulsive effect on bacteria. In addition, the silica gel material also has good permeability and hygroscopic properties, which helps to reduce the environment for bacterial breeding.   However, it should be noted that the antibacterial properties of silicone products are not absolute. Although the silicone material itself has a certain antibacterial effect, in practical applications, its antibacterial effect will be affected by a variety of factors. For example, the antibacterial properties of silicone products will gradually weaken with the increase of use time; At the same time, if the silicone products are not kept clean and dry during use, it is also easy to lead to bacterial growth.   In order to further improve the antibacterial properties of silicone products, manufacturers usually use some special treatment processes. For example, the silicone material is treated with antibacterial agents to enhance its antibacterial effect; Or using nanotechnology, a layer of antibacterial film is formed on the surface of the silicone material, so as to more effectively inhibit the growth of bacteria.   In the medical field, the antibacterial properties of silicone products are particularly important. For example, medical supplies such as silicone catheters and silicone pacifiers need to have good antibacterial properties to reduce the risk of infection in patients. In addition, in the field of home and baby products, the antibacterial properties of silicone products have also attracted attention. Silicone baby bottles, toys, etc., can effectively reduce the growth of bacteria and protect the health of infants.   In general, silicone products have certain antibacterial properties, but in practical applications, it is still necessary to pay attention to keep clean and dry to give full play to its antibacterial advantages.

How to distinguish inferior silicone products? In recent years, silicone products are favored by consumers because of their environmental protection, non-toxic and durable characteristics. However, the quality of silicone products on the market is uneven, how to avoid the trap of "toxic silicone" and buy safe and assured silicone products?   1. look at the appearance and feel   1. The surface of high quality silicone products is smooth, no burrs, impurities; The surface of inferior silicone products is rough, or there are obvious particles and scratches. 2. High quality silicone products feel soft, moderate elasticity; Poor quality silicone products feel hard, poor elasticity, and even easy to break.   2. Smell   1. High quality silicone products have no obvious odor, or only light rubber taste; Inferior silicone products have pungent odor, such as sour taste, kerosene smell. 2. Fire test: fire high-quality silicone products, the flame is blue, smokeless; Fire inferior silicone products, the flame is yellow, there is black smoke.   3.check the product certification and certificate   1.High quality silicone products should have relevant certifications, such as ROHS, Reach, etc., and accompanied by certification. 2. Inferior silicone products are often unable to provide relevant certifications and certificates.   4.understand the production process   1. High quality silicone products adopt production processes that meet national standards, such as hot pressing, injection molding, etc. 2. Inferior silicone products are backward in production process, such as manual pressing and low pressure injection molding.   5. Experimental test   1. Dripping test: the water drops on the surface of high-quality silicone products, the water beads are spherical, not easy to penetrate; Poor quality silicone products water diffusion, easy to penetrate. 2. Wear-resistant test: Wipe high-quality silicone products with sandpaper, no obvious surface wear; The surface wear of inferior silicone products is serious.   6. After-sales service   1.High-quality silicone products manufacturers to provide perfect after-sales service, including return, repair, etc.; 2. Manufacturers of inferior silicone products often have no after-sales service, or pass the buck.

Silicone buttons and other keys, as long as the product is needed to use the button, then the silicone button can be useful, for example; "Remote control button, instrument and equipment button, electronic dictionary button" including all electronic products can be used, then do you know, what makes the silicone button into a conductive silicone button, and how do we identify what is a conductive silicone button, the next small series will give you details.   In conductive silicone keys are usually divided into two conductive materials: 1, (conductive black particles) principle: the contact between conductive particles, forming a conductive path, so that the conductive adhesive has electrical conductivity, the stable contact between the particles in the adhesive layer is due to the conductive adhesive curing or drying caused. Before the conductive adhesive is cured or dried, the conductive particles are separated in the adhesive, and there is no continuous contact with each other, so they are in an insulating state. After the conductive adhesive is cured or dried, the volume of the adhesive shrinks due to the volatilization of the solvent and the curing of the adhesive, so that the conductive particles are in a stable continuous state with each other, and thus show electrical conductivity. 2, (ink conductive) electrically conductive printing ink (electrically conductive printing ink), paste ink made of conductive materials (gold, silver, copper and carbon) dispersed in the binder, commonly known as paste ink. It has a certain degree of conductive property and can be used for printing conductive points or conductive lines.   Ways to distinguish silicone buttons from conductive silicone buttons: 1, the black conductive silicone key identification method, to see whether there is a black dot at the bottom of the key, and the dot must have a certain thickness, there are also some dots with texture, if one of the two conditions is met, then the black conductive silicone key. 2, ink conductive silicone key identification method, is also to see whether there is a black dot at the bottom of the key, and the dot is particularly thin, and some form a small black block with the shape of the bottom of the key, which can not be deducted with the nail is the ink conductive silicone key.