玻璃钢-聚氯乙烯复合管的研制

Preparation for FRP-PVC Composite Pipeline

对玻璃钢(FRP)复合增强聚氯乙烯进行了研究,结果发现,不同的PVC表面处理技术及粘合剂品种,不仅对粘合性能,而且在工艺方法上差异极大。选用C-3化学处理剂及M型、EJ型粘合剂,FRP-PVC的粘合强度达10MPa,且化学处理、粘合、玻璃钢成型及固化一步完成。FRP-PVC复合界面,经水煮试验、冷热交替及声发射测试,表明粘合状态良好。φ100mm的PVC管,FRP增强层厚为2mm,复合管的承压达18MPa以上。

The authors studied the interface and production technique of polyvinylchloride(PVC) lined with glass-fiber reinforced composite systematically. The results show that the various surface treating techniques and different kinds of binders will produce quiet different adhesive properties as well as technical procedure. The adhesive strength can reach to 10 MPa for fiber reinforced plastics composite pipe when C-3 treating agent and M-type or EJ-type binder were used. All the procedures including chemical treatment, adhesion, fabrication and Curing are performed in one step. After boiling testing, circulating heating and cooling testing, and acoustic testing, the interface of PVC-FRP shows very good adhesion. The permissive pressure of PVC composite pipe with diameter of φ100 mm and thickness of 2 mm of FRP reinforced layer is over 18 MPa.