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Modifier as well as preparation method and applications thereof

A modifier and thermoplastic elastomer technology, applied in the field of modifiers for recycled polyolefin plastics and plastic modifiers, can solve problems such as poor strength and toughness, improve performance, reduce costs, increase tensile strength and The effect of impact toughness

Inactive Publication Date: 2012-07-04
PUTIAN HENGTONG COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The third object of the present invention is to provide regenerated polyolefin plastics, which contain the modifying agent in the components, the plastics have higher strength and toughness, and can solve the problem of the strength of regenerated polyolefin plastics in the prior art. The problem of poor toughness, and can make the recycled polyolefin plastics have better mechanical properties despite containing a large amount of waste recycled plastics, or still maintain the same mechanical properties as the usual unused new polyolefin plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The modifier is obtained by mixing 85 parts of copolymers formed by grafting ethylene-octene copolymers with itaconic acid derivatives, 0.01 parts of dicumyl peroxide, and 15 parts of polyethylene wax to obtain a mixture. The mixture is mixed by an internal mixer, extruded and granulated by an extruder to prepare the modifying agent.

[0024] The method for producing recycled polyolefin plastics by applying the above-mentioned modifying agent:

[0025] Mix 3 parts of the above-mentioned modifier, 30 parts of waste HDPE material, and 70 parts of new HDPE5301 (Shanghai Secco Petrochemical Co., Ltd.), and dry them in an oven set at 100°C for about 30 minutes. After being extruded and shaped by the setting equipment, the electric underground sheath pipe is produced. The ring stiffness of the finished product is 11kN / m2, the tensile strength is 23Mpa, the elongation at break is 500%, and the longitudinal retraction rate is 1%. The flat test has no Cracked, the conclusion is...

Embodiment 2

[0028] The modifier is obtained by mixing 85 parts of copolymers formed by grafting ethylene-octene copolymers with itaconic acid derivatives, 0.05 parts of dicumyl peroxide, and 15 parts of polyethylene wax to obtain a mixture. The mixture is mixed by an internal mixer, extruded and granulated by an extruder to prepare the modifying agent.

[0029] The method for producing recycled polyolefin plastics by applying the above-mentioned modifying agent:

[0030] Mix 10 parts of the above-mentioned modifier, 50 parts of waste HDPE material, and 50 parts of new HDPE5301 (Shanghai Secco Petrochemical Co., Ltd.), and dry it in an oven set at 100°C for about 30 minutes. After being shaped by the shaping equipment, the electric underground sheath pipe is produced. The ring stiffness of the finished product is 10kN / m2, the tensile strength is 20Mpa, the elongation at break is 450%, and the longitudinal retraction rate is 1%. There is no crack in the flat test , the conclusion is qualif...

Embodiment 3

[0033] Described modifying agent is formed by the grafting of ethylene-octene copolymer and itaconic acid derivative 80 parts of copolymers, 0.1 part of dicumyl peroxide, polyethylene wax) 20 parts and mixes homogeneously to obtain compound, will The above-mentioned mixture is mixed by an internal mixer, and then extruded and granulated by an extruder to prepare the modifier.

[0034] The method for producing recycled polyolefin plastics by applying the above-mentioned modifying agent:

[0035] Mix 10 parts of the above-mentioned modifier, 50 parts of waste HDPE material, and 50 parts of new HDPE5301 (Shanghai Secco Petrochemical Co., Ltd.), and dry it in an oven set at 100°C for about 30 minutes. After being shaped by the shaping equipment, the electric underground sheath pipe is produced. The ring stiffness of the finished product is 11kN / m2, the tensile strength is 21Mpa, the elongation at break is 380%, and the longitudinal retraction rate is 1%. There is no crack in the f...

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Abstract

The invention provides a modifier. The modifier comprises the following components in parts by proportion: 80-90 parts of copolymer formed by grafting a direct-chain thermoplastic elastomer and an itaconic acid derivate, 0.01-0.1 part of dicumyl peroxide, and 10-20 parts of polyethlene wax, and in the preparation method, the copolymer, the dicumyl peroxide, and the polyethlene wax are uniformly mixed; the mixture is mixed by an internal mixter, and then is extruded and granulated by a granulator; and then the modifier is prepared. The invention also provides a method for producing regeneratedpolyolefin plastic by the modifier. The method adopts the following components in parts by weight: 3-15 parts of the modifier, 30-80 parts of waste polyolefin plastic, and 20-70 parts of new polyolefin plastic. By applying the modifier, the property of the regenerated polyolefin plastic is obviously enhanced, and the indexes on strength, toughness and the like of the regenerated polyolefin plastic are greatly enhanced, and the use ratio of the waste plastic and the utilization rate of the recycled plastic are enhanced, thereby the cost is decreased.

Description

【Technical field】 [0001] The invention relates to a plastic modifier, in particular to a modifier applied to recycled polyolefin plastics, and belongs to the field of polymer chemical industry. 【Background technique】 [0002] With the rapid development of the plastics industry, the recycling of waste plastics, as a measure to save energy and protect the environment, has received more and more attention. It can realize the recycling of resources and energy saving and emission reduction. High-density polyethylene plastic, referred to as "HDPE". HDPE is a thermoplastic polyolefin plastic produced by ethylene copolymerization. Polyolefin plastic is widely used as industrial materials such as electrical and electronic materials and various packaging materials. Currently, polyolefin plastics are the fastest growing segment of the plastic recycling market, mainly due to their ease of reprocessing, minimal degradation characteristics and their large number of applications for packa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08L23/06C08K5/14B29B9/06C08L23/00B29C47/92H02G9/02B29C48/92
CPCB29C48/04
Inventor 李纬光叶盛京潘悦俞春红赵维达陈侃饶蔚晖
Owner PUTIAN HENGTONG COMM EQUIP
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