影响橡塑整芯难燃输送带粘合强度的因素

Effective Factors on Adhesion Strength of Flame Retardant Rubber/Plastics Solid woven Conveyor Belt

研究了乳液法ＰＶＣ（简称乳ＰＶＣ）、悬浮法ＰＶＣ（简称悬ＰＶＣ）和粘合剂用量、阻燃增塑剂、带芯含棉量等因素对橡塑整芯难燃输送带粘合性能的影响。结果表明，在覆盖胶中可用２０～２５份乳ＰＶＣ等量替代ＣＲ／ＮＢＲ／氯化聚乙烯（ＣＰＥ）（４０／４０／２０）配方体系中的ＮＢＲ，也可用４０～６０份悬ＰＶＣ等量替代ＮＢＲ配方体系中的ＮＢＲ；浸渍液中增塑剂选择ＺＲＳ５０／ＤＯＰ／４２％氯化石蜡并用最适宜；覆盖胶中加入粘合剂Ａ，可提高粘合强度，用量宜为１５～２５份；带芯含棉量为３０％～４０％较为合理。

The influence of the level of emulsion PVC,suspension PVC and adhesive,the type of flame retardant plasticizer and the cotton content in carcass on the adhesion strength of flame retardant rubber/plastics solid woven conveyor belt was investigated.The results showed that 20～25 phr of emulsion PVC could replace the equivelent proportion of NBR in CR/NBR/CPE(40/40/20) blend and 40～60 phr of suspension PVC cound replace the equivelent proportion of NBR in NBR based compound for belt cover;it was the most suitable to use ZRS 50/DOP/42% chlorinated paraffin as the plasticizer in the dipping solution;the adhesion strength increased with the addition of 1 5～2 5 phr of adhesive A to cover compound;and it was reasonable to use the carcass with 30%～40% cotton content.