| 简介 |
FIELD : chemistry.SUBSTANCE : invention relates to field of chemistry, in particular to compositions, based on polyorganosiloxane for application as shock-absorbing material, absorbing shock mechanical energy in vehicles, mechanisms, apparatuses, operating on earth, in air and space. Composition of shock - absorbing material contains polydimethyldiphenylsiloxane caoutchouc of general formula HO[(Me2SiO)n(Ph2SiO)m]kH, where n, m represent molar content of links, n+m=100 when m=4÷12, k=33÷69, boric acid or its ether, iron oxide, titanium dioxide as semi-reinforcing filling agent, wollastonite as reinforcing filling agent, magnesium oxide as thickening agent, and talc and fluoroplast as antiadhesive components.EFFECT : elaboration of composition of shock-absorbing material, which ensures penetration of 160-220 convunits and absence of crystallisation at temperature minus 80°C for two hours.2 tbl |
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