How to determine the hardness and softness of silicone kitchen utensils!snack and drink cup combo

　　Silicone products are a kind of material with strong softness, and can be used in many industries and products. However, many silicone materials have good softness at any time, but they have different textures and softness deviations. When When it acts on silicone kitchen utensils, some will be harder, and some will be softer. For example, silicone spoons and silicone cake molds can be distinguished from each other. Sometimes many kitchen tableware products will have different functions in different ways. The effect works, so this is related to the choice of hardness and softness. I wonder if you have this concern?

　　When many designers and lay engineers want to use silicone to design a product, they often have product concerns because of this matter, and do not know how much hardness material to use to achieve the actual performance effect, and silicone kitchenware itself is a special product, and the hardness and softness are not selected correctly. It may lead to unstable handling due to too softness, automatic spilling of the loaded food, too hard not suitable for normal use, poor hand feel, and products that are too brittle and easy to tear!

　　Therefore, the above-mentioned silicone kitchenware processing manufacturers will give you some small suggestions. First of all, silicone kitchenware has certain structural problems like other silicone rubber products. When choosing silicone kitchenware first, if the product structure is too complicated, it has A certain buckle or right angle and the product is too thin, it is not recommended to use high-hardness materials, but on the contrary, the hardness can be reduced, and the softer it is, the less it will affect the tearing phenomenon! However, the main structure of the product is simple and the force effect is required, so it is recommended to increase the hardness, and use high hardness to achieve the actual supporting strength without causing any impact.

　　The hardness standard of raw materials for silicone rubber products!

　　The common solid silicone rubber raw materials are often used in silicone kitchenware with a degree of 30-90 degrees. The common silicone tableware cake molds and silicone bowls on the market have a hardness of 50 degrees ± 5 degrees. Silicone spoons, shovels, scrapers The hardness is about 80 degrees ± 5 degrees. At present, a new material can reach 90 degrees, which is equivalent to the hardness of TPR, PET and other materials. Therefore, it is recommended that when customizing silicone tableware, you can refer to the current situation of silicone product manufacturers. Some similar products are selected and compared.

　　The disadvantage of silicone products is that the higher the hardness of the product, the more difficult it is to process. The problems that arise are: the product is brittle, the parting line bursts, the whole is not cooked, the product is difficult to eject, and the more inversions and right angles, the more It is easy to produce the above defects!

　　What are the effects of different hardness of silicone products:

　　1. Changes in extrusion strength, low hardness products will gradually decrease in strength, high hardness will increase, and the difference of 5-10 degrees will have different extrusion changes.

　　2. The change of tear resistance, the higher the hardness, the weaker the tear resistance of the product, especially the products with right angles are prone to tearing, the lower the hardness, the better the tearing degree, and the tearing degree of different hardness is different.

　　3. Deformation is caused by constant elongation stress. Constant elongation stress is an important control index for silicone materials, which is precisely related to hardness. Different hardness and the temperature and pressure controlled during the vulcanization and vulcanization process are important for the deformation of the product. Relationship.

　　4. Changes in wear resistance and fatigue degree. Products with different hardness have different effects on wear resistance and fatigue degree. Generally, the hardness of silica gel material increases with the increase of crystallinity. Long-term running-in will affect the decrease of fatigue degree. Phenomenon.

　　5. The elasticity is different. Elasticity is one of the important elements in the silicone material. Therefore, materials with different hardnesses have an impact on each product used in different applications. If the difference in hardness is too large, it may lead to the use effect of the entire product, or even Affects every aspect of a whole!

　　Therefore, many customers fail to correctly indicate the hardness of use when purchasing silicone products, and there is no requirement for the hardness of the material, but the choice of hardness of silicone products is likely to affect the use effect of your entire product. The hardness of the silicone material will determine the hardness in the future!

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