Method for reducing flow rate of polyethylene melt

A melt flow rate and polyethylene technology, which is applied in the field of reducing the melt flow rate of plastics, can solve the problems of fast melt flow rate and high melt index, and achieve the effects of easy operation, simple process and novel concept

Inactive Publication Date: 2010-09-08
邓忠权
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the injection-molded high-density polyethylene produced by the existing method has too high a melt index and a too fast melt flow rate, which cannot meet the requirements for the production of pipeline products. How to reduce the polyethylene melt flow rate has not yet been solved. the puzzle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, a kind of method for reducing polyethylene melt flow velocity, its technological process is as follows:

[0015] A. Preparation of additives: Take 100 parts of polyethylene and 5-10 parts of polyethylene cross-linking agent for later use;

[0016] B. Mixing: Mix the above additives evenly at room temperature for later use;

[0017] C. Dilution: Dilute polyethylene by 100:1, that is, take 100 parts of polyethylene, put 1 part of the above-mentioned auxiliary agent into 100 parts of polyethylene, and stir evenly;

[0018] D. On the machine: Put the above-mentioned uniformly mixed mixture into the extruder to granulate, so that the polyethylene melt flow rate can be reduced.

Embodiment 2

[0019] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that the polyethylene crosslinking agent is gem-diperoxy tert-butyl-3,3,5-trimethylcyclohexane.

Embodiment 3

[0020] Embodiment 3: This embodiment is basically the same as Embodiment 1, except that the polyethylene crosslinking agent is 8 parts.

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PUM

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Abstract

The invention relates to a method for reducing a flow rate of polyethylene melt, which comprises the following process steps: A, preparation of auxiliary agents: taking 100 parts of polyethylene and 5-10 parts of polyethylene cross-linking agent; B, mixing: mixing the auxiliary agents at the room temperature; C, dilution: diluting the polyethylene according to a ratio of 100:1, putting 1 part of prepared auxiliary agents into 100 parts of polyethylene, and mixing; D, feeding: putting the well diluted mixture into an extruder for granulation and extrusion, thereby achieving the effect of reducing the flow rate of the polyethylene melt. The method has the advantages of simple process, easy operation and no pollution, and can realize the industrial mass production; and the method can reduce the flow rate of the polyethylene melt with the high melt index, so that the polyethylene melt can be used as a raw material suitable for pipeline production. The invention can be widely applied in product production with the extrusion, emptying, film blowing, drawing and the like of the polyethylene melt.

Description

technical field [0001] The invention relates to a method for reducing the flow rate of plastic melt, in particular to a method for reducing the flow rate of polyethylene melt. Background technique [0002] As we all know, the injection-molded high-density polyethylene produced by the existing method has too high a melt index and a too fast melt flow rate, which cannot meet the requirements for the production of pipeline products. How to reduce the polyethylene melt flow rate has not yet been solved. problem. Contents of the invention [0003] The purpose of the present invention is to make up for the deficiencies of the prior art. After intensive research and repeated verification by the inventor, a method for reducing the flow rate of polyethylene melt is provided, which is novel in concept, simple in process and easy to operate. [0004] In order to achieve the above object, a kind of method that the present invention is used to reduce polyethylene melt flow rate, its t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/14C08J3/24
Inventor 邓军邓丽邓忠权
Owner 邓忠权
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