PVC wrapping film

Abstract

The invention discloses a PVC wrapping film which comprises the following raw materials in parts by weight: 80-120 parts of PVC resin, 10-20 parts of a plasticizer, 4-6 parts of butadiene-acrylonitrile rubber P83 powder, 1.5-2.5 parts of oleamide, 4-6 parts of a tribasic and dibasic heat stabilizer, 2-3 parts of CPE, 1-1.5 parts of ACR and 0.5-1.5 parts of stearic acid. The PVC wrapping film has the beneficial effects that (1) the film has high flexibility, damage difficulty, high bursting force resistance, impact resistance, tear resistance and high tension and can replace case packing; (2) a shrinkage ratio is large, articles can be tightly coated after thermal shrinkage, and if the film is made into a through bag of which two ends are open to be subjected to thermal shrinkage, the articles can be lifted at the two opening ends, the weight of 15KG can be borne, and the articles are convenient to carry; (3) the transparency is excellent, the light transmittance is 80 percent, products can be displayed and can be promoted invisibly, and a delivery error during the cargo movement link is reduced; (4) the film is moisture-proof, waterproof and dustproof, a packaging effect can be achieved, attractive appearance of the products can be realized, and the products are protected; (5) the PVC wrapping film is non-toxic, tasteless and pollution-free and belongs to an environment-friendly packaging material.

Description

technical field [0001] The invention relates to the field of materials, in particular to a PVC wrapping film. Background technique [0002] Polyvinyl chloride, referred to as PVC in English, is a thermoplastic resin polymerized by vinyl chloride under the action of an initiator. It is a homopolymer of vinyl chloride. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC is a white powder with an amorphous structure and a small degree of branching. The molecular weight of industrially produced PVC is generally in the range of 50,000 to 120,000, with a large polydispersity, and the molecular weight increases with the decrease of the polymerization temperature; there is no fixed melting point, it starts to soften at 80-85°C, and becomes viscoelastic at 130°C , 160 ~ 180 ℃ began to change into a viscous flow state; good mechanical properties, tensile strength of about 60MPa, impact strength 5 ~ 10kJ / m 2 ; Excelle...

AI Technical Summary

Problems solved by technology

The packaging cost is low, the operation is convenient, the shrinkage temperature is low, the shrinkage effect is excellent, the gloss is transparent, and the shrinkage rate is large. It is suitable for the packaging of wire and cable special-shaped products. It has good toughness, pressure resistance, moisture resistance, and cold resistance. With so many advantages of PVC stretch film, it is necessary to continue in-depth research