Some who do not know much about the silicone industry can not confirm whether its material is silicone, rubber, PVC, PU or other after getting the pipe. Now more and more industries, more and more people choose silicone material, silicone tube environmental protection, non-toxic, tasteless, food grade, weather resistant, is widely used in electronic appliances, baby products, medical, electricity, automotive, construction, aviation, communications, office, family and other fields.
Identification method 1: combustion method
Generally using the firing method, the smoke of the silica gel material is white, and the burned ash is with white sand grains, which is because the silica gel is a mineral extracted from the silica ore.
Identification method 2: Weight test
The density of silicone rubber products is 1.3, so high-precision instruments are needed to analyze the weight of the products to about 0.01 grams, which can be identified by the way of materials.
Identification method 3: immersion test
Calculate the shrinkage rate of silicone products, usually the shrinkage rate of silicone products is 0.0012-0.0013, after sampling, measure the size of the second element, and then put the product into the liquid when soaked for 20 hours after taking out to see whether the silicone product has a significant size change, the data size of the general production needs to be accurate to 0.1mm, After the test, if the shrunken silicone rubber material is soaked in water and becomes heavy or the size of the foam increases, you need to pay attention to it.
Identification method 4: temperature test
Temperature test is the most intuitive, high temperature and low temperature can test the quality of silicone products High temperature test, put the ordinary silicone products into the temperature of 280 degrees for about ten minutes, if there is no change after taking out the silicone rubber products, then the quality of the product is trustworthy, the temperature resistance effect can be achieved. If the product is deformed and the latter has the phenomenon of aging or even local burning, then there are certain problems with the chemical additives in the product.
Identification method 5: Color test
Silicone rubber products can be deployed in a variety of different colors can be deployed according to the international Pantone color number, so there is no difference from the color above and there is no flaw after appearance treatment, but the main thing is to stretch to see whether the bounce will appear white or transparent phenomenon, if there is that material may belong to the ordinary material!
Identification method 6: feel test
Feel is very important, whether it is stretching, resilience, deformation and toughness of silicone products are very important.
