| abstract |
The invention discloses a preparation process of an enhanced plastic pipeline material, which comprises three procedures of glass fiber pretreatment, raw material mixing and melt co-extrusion; wherein, the glass fiber pretreatment is obtained by immersing chopped fibers into a treatment solution formed by a coupling agent of vinyl triacetoxy silane and an ethanol solution, and stirring and drying; the reinforced outer layer and the reinforced inner layer are both prepared by taking polypropylene as a matrix, adding auxiliary agents with different functions and uniformly stirring, wherein the reinforced additive is prepared by taking high-strength polyester filaments as a framework fabric, coating a thermoplastic polyurethane elastomer after infrared heating and shaping, calendering, cutting and crushing, is compatible with polypropylene during melt extrusion, further forms a network structure with a polypropylene molecular chain and improves the strength of the pipe. The reinforced plastic pipeline material disclosed by the invention has the advantages that the longitudinal retraction rate reaches 1.5-1.8%, the tube heating oven test conforms to the GB/T8803 specification, the tube is free from cracking in the falling test, and the strength and the impact resistance are good. |