Polyethylene wax with inner and outer lubrication performances

Abstract

The invention discloses polyethylene wax with inner and outer lubrication performances. The polyethylene wax is prepared from the following raw materials: 95kg to 105kg of polyvinyl chloride, 3kg to 4.5kg of a calcium-zinc compound stabilizer, 1.5kg to 2.5kg of an acrylate copolymer, 3.5kg to 4.5kg of chlorinated polyethylene, 0.2kg to 0.5kg of a lubricant and 1.5kg to 2.5kg of titanium dioxide. The polyethylene wax is prepared through the following steps: after mixing all the raw materials, stirring and heating at temperature of 50 DEG C to 120 DEG C for 50min to 200min to obtain the polyethylene wax. Or the polyethylene wax is prepared through the following steps: uniformly mixing and stirring all the raw materials, cooling and keeping heat; pressurizing and heating and stirring and keeping warm; cooling to room temperature to obtain the polyethylene wax. The product provided by the invention pays attention to mechanical properties and surface brightness of a polyvinyl chloride hard product and is especially suitable for a high-calcium system formula. According to the polyethylene wax disclosed by the invention, the mechanical properties of a polyvinyl chloride product can be enhanced and the utilization portion of filling materials can be correspondingly increased due to an excellent coupling capability so that the surface glossiness of the polyvinyl chloride is increased. The polyethylene wax has a softening point of 102 DEG C and the viscosity of 45cps and has the inner and outer lubrication performances.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a polyethylene wax with internal and external lubrication. Background technique [0002] Polyethylene wax (PE wax), also known as polymer wax. It is widely used because of its excellent cold resistance, heat resistance, chemical resistance and abrasion resistance. In normal production, this part of wax can be directly added to polyolefin processing as an additive, which can increase the gloss and processing performance of the product. As a lubricant, it has stable chemical properties and good electrical properties. Polyethylene wax has good compatibility with polyethylene, polypropylene, polyvinyl cerate, ethylene propylene rubber, and butyl rubber. It can improve the fluidity of polyethylene, polypropylene, ABS and the mold release of polymethyl methacrylate and polycarbonate. Compared with PVC and other external lubricants, polyethylene wax has stronger internal lubrication...

AI Technical Summary

Problems solved by technology

However, PVC is a white powder with an amorphous structure, with a small degree of branching, a relative density of about 1.4, a glass transition temperature of 77-90°C, and begins to decompose at about 170°C. It has poor stability to light and heat. When exposed to sunlight for a long time, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration and rapid decline in physical and mechanical properties

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