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PVC compound has the outstanding characteristics of abundant raw materials (petroleum, limestone, coke, salt, and natural gas), low price and wide range of uses. It has become the second largest general-purpose resin in the world after polyethylene resin, accounting for 29% of consumption.

PVC compound has the advantages of flame retardant, high chemical resistance, good mechanical strength, and good electrical insulation, but its heat resistance is poor, its softening point is 80 ℃, it begins to decompose and change colour at 130 ℃, and precipitate HCI. Need to add other chemicals to enhance its heat resistance, toughness, ductility, etc.

PVC granules is easy to process, and can be processed by moulding, laminating, injection moulding, extrusion, calendaring, blow moulding and other hollow methods.

At present, 65% of the consumer fields of PVC products are in rigid products (including 15% of pipes, 5% of pipe fittings, 30% of doors, windows, and profiles, 8% of hard sheets and plates, etc.), and 35% are used in the production of soft products.

Main applications:

(1) PVC soft products

PVC hoses, cables, wires, plastic sandals, soles, slippers, toys, auto parts, etc.

(2) PVC film

Rolled film, plastic greenhouse, and plastic film, shrink packaging.

(3) PVC coated products

Artificial leather, floor leather.

(4) PVC foam products

Foam sheet, plate, profile

(5) PVC transparent sheet

Thin-walled transparent containers or blister packaging, food, and pharmaceutical packaging materials

(6) PVC rigid board and plate

Pipe fittings, Rigid pipe, special-shaped pipe, corrugated pipe, used as sewer pipe, drinking water pipe, electric wire casing or stair handrail. Hard plate.

(7) PVC profile

Door and window profiles, PVC door, PVC window