| abstract |
A kind of waterproof flame retardant restrictive coating for cable of the present invention and manufacturing process thereof, described waterproof flame retardant PVC cable material is made up of the component of following weight portion: polrvinyl chloride 100 parts, trioctyl trimellitate (TOTM) 20 ~ 30 parts, phthalic acid isodecyl ester 15 ~ 25 parts, environmental protection calcium-zinc composite stabilizing agent 5 ~ 10 parts, compound rare-earth stabilizer 5 ~ 10 parts, antimony oxide 4 ~ 8 parts, lubricant 0.3 ~ 1 part, 0.1 ~ 0.5 part of antioxidant, nano barium sulfate 3.5 ~ 7 parts, calcined kaolin 2.6 ~ 5.2 parts, nano silicon 3.5 ~ 7 parts, silane coupler 0.18 ~ 0.36 part；Described silane coupler is vinyl three ('beta '-methoxy ethyoxyl) silane, vinyltrimethoxy silane or γ-glycidyl ether oxygen propyl trimethoxy silicane.The present invention greatly reduces the water absorption of the coat layer of power cable, and product uses under moist or water-immerged environment, further increases electric property stable, does not the most produce change, improves the compactness of product, gets rid of material micropore. |