摘要
试验研究了不同长度芳纶短切纤维、浆粕和浆粕母料对丁腈绝热层开炼工艺的影响,不同芳纶单丝纤度对丁腈绝热层力学性能的影响,不同纤维表面处理对芳纶与丁腈橡胶粘合性的影响,以及不同模量芳纶对丁腈绝热层线性烧蚀率的影响。结果表明:芳纶短切纤维以及浆粕母料可满足丁腈绝热层开炼混炼工艺性要求;选用单丝纤度1.33 dtex的高模量芳纶,可获得高于石棉纤维的抗拉强度、伸长率以及线性烧蚀率;选用初始沸点高于160℃的表面处理剂,其芳纶与丁腈橡胶粘合力较好;国产化芳纶完全可以替代致癌物质石棉纤维,用于丁腈绝热层的纤维增强。
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 fibre and nitrile rubber can be better; Domestic aramid can completely replace carcinogens asbestos fiber to be used as fibre reinforcment in nitrile insulation blanket.
出处
《高科技纤维与应用》
CAS
2016年第5期48-52,64,共6页
Hi-Tech Fiber and Application
