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A high-density polyethylene, modified technology, applied in the field of high-density polyethylene modified plastics, can solve the problems of low surface hardness, poor aging resistance, performance decline, etc., and achieve the effect of good mechanical properties and high impact strength
Inactive Publication Date: 2013-08-28
SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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[0002] High-density polyethylene is an opaque white, non-toxic, odorless, waxy resin particle, the specific gravity is lighter than water, soft and tough, slightly elongated, it has good heat resistance and cold resistance, good chemical stability, It also has high rigidity and toughness, acid and alkali resistance, organic solvent resistance, excellent electrical insulation, and can still maintain a certain degree of toughness at low temperatures. The surface hardness, tensile strength, rigidity and other mechanical strengths are higher than LDPE, close to PP, tougher than PP, but the surface finish is not as good as PP, poor mechanical properties, poor air permeability, easy to deform, brittle, easy to stress cracking, low surface hardness, easy to scratch, poor aging resistance, environmental cracking resistance is not as good as low density Polyethylene, especially thermal oxidation can degrade its properties
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Embodiment 1
[0025] A high-density polyethylene modified plastic provided by the invention, the various components described in the high-density polyethylene
[0026] The mass proportions of vinyl modified plastics are 5% of EPDM rubber, 15% of glass fiber, 1% of antioxidant BHT, 0.5% of ultraviolet absorber uv-531, 60% of the high-density polyethylene, Polypropylene 18.5%.
Embodiment 2
[0028] A high-density polyethylene modified plastic provided by the invention, the various components described in the high-density polyethylene
[0029] The mass proportions of ethylene-modified plastics are 5% EPDM rubber, 15% glass fiber, 0.8% antioxidant BHT, 0.4% ultraviolet absorber uv-531, and 60% high-density polyethylene , Polypropylene 18.8%.
[0030] The high-density polyethylene modified plastic provided by the invention overcomes the poor mechanical properties, easy deformation, easy brittleness, easy stress cracking, low surface hardness, poor aging resistance and poor environmental cracking resistance of the existing high-density polyethylene. The shortcomings, especially anti-ultraviolet and anti-oxidation will make it more widely used in new fields.
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Abstract
The invention discloses high density polyethylene modified plastic. The high density polyethylene modified plastic is characterized by being prepared by mixing high density polyethylene, polypropylene and additives in proportions, wherein the additives comprise a toughening agent, a reinforcing agent, an antioxidant and an ultraviolet-proof additive, the toughening agent is ethylene propylene terpolymer, the reinforcing agent is a glass fiber, the antioxidant is an antioxidant BHT (butylated hydroxytoluene), and the ultraviolet-proof additive is an ultraviolet light absorber uv-531. The high density polyethylene modified plastic provided by the invention has the characteristics of season cracking resistance, oxidation resistance, high impact strength, stretch resistance and good mechanical property and is suitable for application to plastic products used in severe conditions and open space.
Description
technical field [0001] The invention relates to the field of plastic formula, in particular to a high-density polyethylene modified plastic. Background technique [0002] High-density polyethylene is an opaque white, non-toxic, odorless, waxy resin particle, the specific gravity is lighter than water, soft and tough, slightly elongated, it has good heat resistance and cold resistance, good chemical stability, It also has high rigidity and toughness, acid and alkali resistance, organic solvent resistance, excellent electrical insulation, and can still maintain a certain degree of toughness at low temperatures. The surface hardness, tensile strength, rigidity and other mechanical strengths are higher than LDPE, close to PP, tougher than PP, but the surface finish is not as good as PP, poor mechanical properties, poor air permeability, easy to deform, brittle, easy to stress cracking, low surface hardness, easy to scratch, poor aging resistance, environmental cracking resistanc...
Claims
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Application Information
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