PE modified material and preparation method thereof

Abstract

The invention discloses a PE modified material. The PE modified material comprises, by weight, 40-50 parts of high density polyethylene, 15-25 parts of low density polyethylene, 5-15 parts of alkali-free glass fibers, 5-20 parts of diatomite, 10-15 parts of a silane coupling agent, 5-15 parts of polytetrafluoroethylene, 5-10 parts of a compatibilizer, 5-10 parts of a toughening agent and 5-10 parts of a high-efficiency composite antioxidant. A preparation method of the PE modified material comprises the following steps: weighing of the raw materials; mixing of the high density polyethylene, low density polyethylene, alkali-free glass fibers, diatomite and polytetrafluoroethylene; addition of the silane coupling agent, and stirring; addition of the compatibilizer, the toughening agent, thelubricant and the high-efficiency composite antioxidant, and stirring; and addition of the above obtained mixture into a twin-screw extruder, and extrusion. The PE modified material has the followingadvantages: the polyvinyl chloride prevents water from approaching; the diatomite and alkali-free glass fibers have an extremely low water absorption rate and a high rigidity, so the material has a good rigidity and high impact resistance in the water environment; and the composite antioxidant can effectively prevent plastics from aging and prolong the service life.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a PE modified material and a preparation method thereof. Background technique [0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material, commonly known as plastic or resin. Poor, becomes brittle at low temperature, easy to age, has defects in mechanical strength, and high moisture absorption rate, resulting in large molding shrinkage and affecting product dimensional stability. Some products used in contact with water such as bathroom interior parts and irrigation Such shell products, after long-term contact with water, will absorb more water, the rigidity of the material will decrease, and it will be easily broken. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a PE modified material with l...

AI Technical Summary

Problems solved by technology

[0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material, commonly known as plastic or resin. Poor, becomes brittle at low temperature, easy to age, has defects in mechanical strength, and high moisture absorption rate, resulting in large molding shrinkage and affecting product dimensional stability. Some products used in contact with water such as bathroom interior parts and irrigation Shell-like products, after long-term contact with water, will absorb more water, the rigidity of the material will decrease, and it will be easily broken