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Study on the application of domestic aramid ifbre in nitrile in-sulation blanket
Pages: 48-52,64
Year: Issue:  5
Journal: Hi-Tech Fiber & Application

Keyword:  aramid fiberNBRinsulationlinear ablation ratestudy;
Abstract: Domestic aramid fibre has been used to replace asbestos fiber and the influences of aramid fibre on the properties of ablation resistance nitrile insulation blanket have been studied. Experiments were conducted to study the influences of different lengths of aramid chopped fibre, pulp, pulp masterbatch on nitrile insulation blanket mixing process; different diameters of aramid filament on the mechanical property of nitrile insulation blanket; different fibre surface treatments on the adhesivity between aramid and NBR; different modulus of aramid on the linear ablative rate of nitrile insulation blanket. The results show that:aramid chopped fibre and pulp masterbatch meet the requirements of nitrile insulation blanket’s mixing process; Choosing high modulus aramid filament can obtain higher tensile strength, elongation and linear ablative rate than asbestos fibre; The boiling point of the oil which is used to treat the aramid surface should be higher than 160℃, then the adhesive force between aramid fi-bre and nitrile rubber can be better; Domestic aramid can completely replace carcinogens asbestos fiber to be used as fibre reinforcment in nitrile insulation blanket.
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