Fireproof material, whether can achieve fire and high temperature resistant silicone products!

by:Keyuan     2020-09-29
Flame retardant fire detection performance in many industries indispensable part, a lot of material requirement for fire rating and flame retardant effect are unable to discern, fireproofing performance of rubber and plastic materials is a important performance index, you have to know about its flame retardant effect too! Soft gel belongs to a category of chemical synthetic material, such as rubber, plastic, silicone material, and they have a common shortcomings, fire heat resistance effect is their fatal defects, and the research and development to upgrade as industrial rubber and plastic materials, there are also some rubber and plastic materials gradually began to improvement of fire retardant, is one kind of silicone rubber products, at present many brand in the market has been in rubber modified silicone material of debugging, make the function of the silicone rubber also have better effect on flame retardant effect. Flame retardant material of silica gel products industry is one of it, it is mainly based on the material base of accelerant, mainly include silicone flame retardants and poly silicon alkyl boron oxygen flame retardants. Flame retardant methods can be directly to the silicone flame retardant added to the polymer ( Such as end hydroxyl, amino or epoxy group) Of polysiloxane segment embedded in some polymer material flame retardant effect, good effect can be achieved for the high temperature stability, oxidation stability, flame can be more than 1 minute, has the high corrosion resistance and stability. In the degradation of flame retardant of silicone materials mainly by flame combustion produces, containing Si keys and polysiloxane ( Or) Si- C key of inorganic oxygen insulation thermal insulation layer. This already stopped burning decomposition product to escape, and suppress the thermal decomposition of high polymer material, achieve the flame retardant, low smoke and low toxicity. And silicone products manufacturer of flame retardant materials main efficacy refers to, in a certain period of time flame combustion does not produce spontaneous combustion phenomenon, and is left after the fire certain indoor naturally put out, the flame resistance performance test of the silica gel products for UL94 fire prevention level test is mainly divided into four kinds: UL94HB: UL94HB test method is cross lit sample, the sample should be within the prescribed time limit, is the minimum standard, the four standard general silicone rubber can achieve UL94V - 2: for the first of two of the sample after 10 seconds of combustion test, flame extinguished in 60 seconds. There can be so drop down. UL94V - 1: two of the sample after 10 seconds of combustion test, flame extinguished in 60 seconds. There can be so drop down. UL94V - 0: two of the sample after 10 seconds of combustion test, flame extinguished within 30 seconds. There can be so drop down.
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