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According to the nature of PVC PVC slitting machine to understand the working principle
PVC Slitter mainly used PVC PVC material. PVC slitting machine to tell you how to achieve the success of the PVC cut? PVC Slitter PVC Slitter, you must first understand its nature. PVC polyvinyl chloride referred to as PVC, from vinyl chloride polymerization in the role of initiator from the thermoplastic resin. Is a vinyl chloride homopolymer. Vinyl chloride homopolymer and vinyl chloride copolymer collectively referred to as vinyl chloride resin. PVC is an amorphous structure of white powder, the degree of branching is small. Industrial production of PVC molecular weight is generally in the range of 50,000 to 12 million, there is a large polydispersity, molecular weight increases with the polymerization temperature decreases; no fixed melting point, 80 ~ 85 ℃ began to soften, 130 ℃ viscoelastic state, 160 ~ 180 ℃ began to change into viscous state. Has good mechanical properties, about 60MPa tensile strength, impact strength 5 ~ 10kJ / m2; have excellent dielectric properties.
As the PVC slitter on the light and heat stability is poor, above 100 ℃ or by prolonged exposure to sunlight, will produce hydrogen chloride decomposition, and further catalytic decomposition, causing discoloration, physical and mechanical properties also decreased rapidly in the practical application must Stabilizers are added to improve heat and light stability. PVC is very hard, solubility is very poor, only soluble in cyclohexanone, dichloroethane and tetrahydrofuran and a small number of solvents, organic and inorganic acids, the base salt is stable, reducing the chemical stability with the use of temperature. PVC is dissolved in acetone-carbon disulfide or acetone-benzene solvent for dry-spinning or wet-spinning fiber, and the polyvinyl chloride has the characteristics of flame-retardant, acid, anti-microbe and wear-resisting, and has good Warmth and elasticity.