Development of PVC composite hose for gas with ultra long service life
A new type of gas hose was developed by selecting PVC resin with ultra-high polymeriza-tion degree of 4 000,high molecular weight polyester plasticizer,oil resistant and low temperature resistant modifier,and by adding plasticizing accelerator to promote plasticization molding.This hose was co-extruded in one-step molding and had a rubber-like texture,could replace traditional rubber hose.No need for vulcanization,environmentally friendly and odorless,simple process,good resistance to gas corrosion.The developed gas hose could replace imported goods and had a service life of over 10 years.
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