PE modified material and preparation method thereof

A technology for modifying materials and raw materials, applied in the field of plastics, can solve the problems of high molding shrinkage, easy aging, and high moisture absorption, and achieve the effects of good rigidity, preventing plastic aging and prolonging service life.

Inactive Publication Date: 2019-04-30
高邮市汉升高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A PE modified material, comprising the following raw materials in parts by weight: 40 parts of high-density polyethylene (HDPE), 15 parts of low-density polyethylene (LDPE), 5 parts of alkali-free glass fiber, 5 parts of diatomaceous earth, silane coupling 10 parts of agent, 5 parts of polytetrafluoroethylene, 5 parts of compatibilizer, 5 parts of toughening agent, 5 parts of lubricant, 5 parts of high-efficiency composite antioxidant; the compatibilizer is polyethylene octene co-elastomer ; The toughening agent is a maleic anhydride grafted ethylene-octene copolymer; the lubricant is a silicone masterbatch; things.

[0018] The alkali-free glass fibers are chopped glass fibers with a single filament diameter of 10 μm.

[0019] The diatomaceous earth fineness is 800 mesh, specific surface area is 55m 2 / g.

[0020] A preparation method of PE modified material, comprising the following steps:

[0021] (1) Take raw materials according to the formula;

[0022] (2) Add...

Embodiment 2

[0027] A PE modified material, comprising the following raw materials in parts by weight: 45 parts of high-density polyethylene (HDPE), 20 parts of low-density polyethylene (LDPE), 10 parts of alkali-free glass fiber, 15 parts of diatomaceous earth, silane coupling 12 parts of agent, 10 parts of polytetrafluoroethylene, 8 parts of compatibilizer, 7 parts of toughening agent, 7 parts of lubricant, 8 parts of high-efficiency composite antioxidant; the compatibilizer is polyethylene octene co-elastomer ; The toughening agent is a maleic anhydride grafted ethylene-octene copolymer; the lubricant is a silicone masterbatch; things.

[0028] The alkali-free glass fibers are chopped glass fibers with a single filament diameter of 10 μm.

[0029] The diatomaceous earth fineness is 800 mesh, specific surface area is 55m 2 / g.

[0030] A preparation method of PE modified material, comprising the following steps:

[0031] (1) Take raw materials according to the formula;

[0032] (2) ...

Embodiment 3

[0037] A PE modified material, comprising the following raw materials in parts by weight: 50 parts of high-density polyethylene (HDPE), 25 parts of low-density polyethylene (LDPE), 15 parts of alkali-free glass fiber, 20 parts of diatomaceous earth, silane coupling 15 parts of agent, 15 parts of polytetrafluoroethylene, 10 parts of compatibilizer, 10 parts of toughening agent, 10 parts of lubricant, 10 parts of high-efficiency composite antioxidant; the compatibilizer is polyethylene octene co-elastomer ; The toughening agent is a maleic anhydride grafted ethylene-octene copolymer; the lubricant is a silicone masterbatch; things.

[0038] The alkali-free glass fibers are chopped glass fibers with a single filament diameter of 10 μm.

[0039] The diatomaceous earth fineness is 800 mesh, specific surface area is 55m 2 / g.

[0040] A preparation method of PE modified material, comprising the following steps:

[0041] (1) Take raw materials according to the formula;

[0042] ...

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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...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L27/18C08L23/08C08K13/04C08K7/14C08K3/34
CPCC08K2201/003C08K2201/005C08K2201/006C08L23/06C08L2201/08C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L27/18C08L23/0815C08K13/04C08K7/14C08K3/34
Inventor 汤洪流
Owner 高邮市汉升高分子材料有限公司
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