Wire drawing

Plastic raw materials were drying after joining hopper, raw materials into the cylinder screw in the screw groove, the screw revolve to be forced on the nose, plastic is come out with a viscous flow diaphragm material immediate access to the cooling water tank for rapid cooling to finalize the design into a thin film, through the cross cut after two groups of the back of the oven heat treatment, hot plate under the action of tensile traction, flat wire stretched molecular orientation effect, make flat wire longitudinal strength increases, and winding.
polypropylene
Polypropylene (PP) Is a polymer formed by the addition reaction of propylene.White waxy material, transparent and light in appearance.The chemical formula is (C3H6) N, the density is 0.89 ~ 0.91g/cm3 inflammable, the melting point is 165℃, and the temperature ranges from -30 ~ 140℃ to soften around 155℃.The polypropylene of Longchang petrochemical can resist the corrosion of acid, alkali, salt liquid and a variety of organic solvents under 80℃, and can be decomposed under high temperature and oxidation.Polypropylene is widely used in clothing, blankets and other fiber products, medical equipment, cars, bicycles, spare parts, transportation pipelines, chemical containers and other production, also used in food, medicine packaging.
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High density polyethylene
High density polyethylene (HDPE) is a white powder or granular product.Non-toxic, tasteless, crystallinity is 80% ~ 90%, softening point is 125 ~ 135℃, using temperature up to 100℃;Hardness, tensile strength and creep property are better than low density polyethylene.Longchang petrochemical high density polyethylene has good wear resistance, electrical insulation, toughness and cold resistance.Good chemical stability, at room temperature, insoluble in any organic solvents, acid, alkali and various salts corrosion resistance;The film has low permeability to water vapor and air and low water absorption;Aging resistance, environmental stress cracking resistance is not as good as low density polyethylene, especially thermal oxidation will make its performance decline, so the resin must be added antioxidant and uv absorbent to improve the shortage of this aspect.The thermal deformation temperature of hdPE film is low under the condition of stress, so attention should be paid in application.
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polypropylene

Product(GRADE)Melt mass flow rate,g/10minUsagePDF
S10032.4~3.5Suitable for making textile single silk, (cut) film, used for packing bag, carpet backing (base cloth), twisting, cable, (shading or covering) color strip cloth, dogging bag and other silkDOWNLOAD
T30S2.8~3.2Suitable for making textile single silk, (cut) film, used for packing bag, carpet backing (base cloth), twisting, cable, (shading or covering) color strip cloth, dogging bag and other silkDOWNLOAD
L5E892.8-3.8Woven bags, textiles and monofilamentDOWNLOAD
1102K2.7~4Woven products, sheetsDOWNLOAD
HP550J3.2Home appliance products, daily chemical packaging, toys, straws, stationery sheet, hot forming, single wire, flat wireDOWNLOAD

High density polyethylene

Product(GRADE)Melt mass flow rate,g/10minUsagePDF
5000S0.700~1.30 High mechanical strength, suitable for making small hollow vessels, agricultural film, rope and other silk, etcDOWNLOAD
60940.700~1.30Fishing net silk, textile cloth, hollow productsDOWNLOAD
7750M2.2~2.8Copolymerization of single peak high strength single filaments, ropes, fishing nets, etcDOWNLOAD

Industries and applications