How to remove the smell of silicone products
Many people in the silica gel market react to buy silica gel products will produce a smell or even pungent odour, mainly because of the use of various additives in the production process of silica gel products, and this smell is generated after the reaction of accelerant and vulcanizing agent. So some manufacturers of silica gel products choose a relatively appropriate agent for this, or according to the peculiar product, add the appropriate chemical agent to react it off.
Most manufacturers choose flavors, shaders, deodorants, absorbents and even combustion methods. But these additives are not deodorant, just mask the taste; The deodorant of essence has no effect due to concealing the mask, and the use of it will have two disadvantages:
1. New pungent smell will be produced;
2. The smell will bounce back. With the extension of time, the smell produced by the additives will not be covered and the bad smell will come out.
Therefore, in order to truly remove the bad smell of silicone products, the basic method is to optimize the selection of raw materials and vulcanization system and process:
1. Silica gel raw materials and production and processing: in order to reduce the cost and increase the proportion of recycled rubber, some silica gel manufacturers will increase the share of polluting oil; These, however, have to be done in the form of operating oils that are environmentally friendly, tasteless, and that have the potential to inhibit and degrade the polluting volatiles used to regenerate rubber. Therefore, we should process the smell of silica gel products on the base and select from the quality and production of silica gel.
For example: oil selected high flash point, no odor; Do not add recycled adhesive; Don’t use the booster CBS; No DCP, etc.
2. Curing system and process: silica gel is gas-phase gel, refined with flavorless curing agent. After shaping the silica gel through secondary curing (it is recommended that the curing time is more than 4 hours, the temperature is about 200 degrees, and it is a vacuum oven.