Ethylene propylene rubber grafted maleic anhydride modified polyethylene toughening master batch and preparation method thereof

A technology of grafting maleic anhydride and ethylene-propylene rubber, which is applied in the field of polyethylene toughening masterbatch, can solve the problems of poor low-temperature impact resistance, easy aging, low strength and elasticity, and achieve high elasticity and long aging resistance Effect

Inactive Publication Date: 2011-08-31
张万鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of polyethylene in the prior art are: poor low temperature impact resistance, easy aging, low strength and elasticity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1. A kind of ethylene propylene rubber graft maleic anhydride modified polyethylene toughening masterbatch, it is made of the following raw materials of weight ratio,

[0021] Polyethylene 80; Antioxidant 0.5;

[0022] Ethylene propylene rubber grafted with maleic anhydride 15 .

[0023] It can be made by conventional methods in the prior art.

Embodiment 2

[0024] Example 2. A kind of ethylene propylene rubber graft maleic anhydride modified polyethylene toughening masterbatch, it is made of the following raw materials of weight ratio,

[0025] Polyethylene 120; Antioxidant 1.5;

[0026] Ethylene propylene rubber grafted with maleic anhydride 25 .

[0027] Its preparation method steps are as follows:

[0028] (1) Take each raw material according to the weight ratio, put polyethylene into an internal mixer for mixing, the mixing temperature is 170°C, and the mixing time is 4 minutes; then add ethylene-propylene rubber grafting horses into the internal mixer To acid anhydride, or add pigment, carry out banburying, banburying temperature is 170 ℃, time is 4 minutes, gets banburying material;

[0029] (2) put banburying material and anti-oxidant into refining machine and carry out mixed refining, the roller temperature of open mill is 155 ℃ during refining, refining time is 4 minutes, obtains refining material;

[0030] (3) The r...

Embodiment 3

[0031] Example 3. A kind of ethylene propylene rubber graft maleic anhydride modified polyethylene toughening masterbatch, it is made of the following raw materials of weight ratio,

[0032] Polyethylene 100; Antioxidant 1;

[0033] Ethylene propylene rubber grafted with maleic anhydride 20.

[0034] Its preparation method steps are as follows:

[0035] (1) Take each raw material according to the weight ratio, put polyethylene into an internal mixer for mixing, the mixing temperature is 175 ° C, and the time is 5 minutes; then add ethylene-propylene rubber grafting horses into the internal mixer To acid anhydride, or add pigment, carry out banburying, banburying temperature is 180 ℃, time is 5 minutes, and banburying material is obtained;

[0036] (2) Put banburying material and anti-oxidant into refining machine and carry out mixed refining, the roller temperature of open mill is 160 ℃ during refining, refining time is 5 minutes, obtains refining material;

[0037] (3) Th...

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Abstract

The invention discloses an ethylene propylene rubber grafted maleic anhydride modified polyethylene toughening master batch, which is characterized by being prepared from the following raw materials by weight: 80 to 120 parts of polyethylene, 0.5 to 1.5 parts of antioxidant and 15 to 25 parts of ethylene propylene rubber grafted maleic anhydride. The invention also discloses a preparation method of the ethylene propylene rubber grafted maleic anhydride modified polyethylene toughening master batch. The ethylene propylene rubber grafted maleic anhydride modified polyethylene toughening master batch is an improved polyethylene material; and tests prove that the modified toughening master batch has the advantages of high elasticity, high temperature resistance, low temperature resistance and long aging resistance, and impact strength can be improved by more than 20 times at the temperature of 0 DEG C. The master batch is suitable to be used as a raw material for products such as various industrial pipelines, agricultural water delivery pipelines, automobile accessories, household appliance shells, various fibers, cables, plates and the like.

Description

technical field [0001] The invention relates to a polyethylene toughening masterbatch, in particular to an ethylene-propylene rubber grafted maleic anhydride modified polyethylene toughening masterbatch, and also relates to a preparation method of the masterbatch. Background technique [0002] Polyethylene, English name: polyethylene, referred to as PE, is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, has certain low temperature resistance, good chemical stability, can withstand most acid and alkali erosion (not resistant to oxidizing acids), is insoluble in general solvents at room temperature, and has good water absorption. Small, excellent electrical insulation properties. The disadvantages of polyethylene in the prior art are: poor low temperature impact resistance, easy aging, low strength and elasticity. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08K5/134
Inventor 张万鹏
Owner 张万鹏
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