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Preparation method of dehydrated master batch

A technology of masterbatch and dispersant, which is applied in the field of preparation of dehydrated masterbatch, which can solve the problems of easy crystal point generation, network blocking, poor dispersibility, etc., and achieve the effects of facilitating processing, reducing energy consumption and improving quality

Inactive Publication Date: 2018-09-28
常州圣雅塑母粒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing dehydrated masterbatch has poor fluidity and poor dispersibility, and it is easy to produce crystal points in the production of cast film, and it is easy to cause network blockage in plastic processing

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] A preparation method of dehydrated masterbatch, comprising the following steps:

[0014] (1) Mix polyethylene, calcium oxide, dispersant, and stearate in proportion to form a mixture;

[0015] (2) The mixture is put into a high-low speed mixer and then cooled, the stirring time is 30 minutes, the cooling time is 5-10 minutes, and the cooling temperature is 20 degrees Celsius;

[0016] (3) Pour the cooled mixture into the twin-screw extruder for wind blowing granulation.

[0017] In step (1), 15 parts of polyethylene, 67 parts of calcium oxide, 15 parts of dispersant, and 3 parts of stearate. The dispersant is polyethylene wax. In step (2), the cooling method is wind cooling. In step (3), the processing temperature of zones 1, 2, and 3 of the twin-screw extruder is 100-120 degrees Celsius, and the processing temperatures of zones 4, 5, 6, 7, 8, and 9 of the twin-screw extruder are The processing temperature is 120-150 degrees centigrade, and the processing technology...

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PUM

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Abstract

The invention relates to the field of master batches, and particularly to a preparation method of a dehydrated master batch. The preparation method of the master batch comprises the following steps: (1) uniformly mixing polyethylene, calcium oxide, a dispersant and a stearate according to a proportion to obtain a mixture; (2) putting the mixture into a high-speed mixer, carrying out stirring and carrying out cooling, wherein the stirring time is 30 minutes, the cooling time is 5-10 minutes, and the cooling temperature is 20 DEG C; and (3) pouring the cooled mixture into a twin-screw extruder and carrying out granulation. The master batch prepared by the preparation method can absorb moisture contained in the raw materials, the processing is facilitated, the energy consumption is reduced, and the quality of finished products is improved.

Description

technical field [0001] The invention relates to the field of master batches, in particular to a preparation method of dehydrated master batches. Background technique [0002] Dehydrated masterbatch is used to solve the moisture in plastic during plastic processing and molding. Using dehydrated masterbatch does not need to dry the plastic. The existing dehydrated masterbatches have poor fluidity and poor dispersibility, and are prone to crystal points in the production of cast film, and are prone to network blocking in plastic processing. Contents of the invention [0003] In order to overcome the disadvantages of moisture in raw materials and high energy consumption in the drying process of raw materials in the existing plastic molding process, the invention provides a preparation method of dehydrated masterbatch. [0004] The technical scheme that the present invention adopts to solve its technical problem is: a kind of preparation method of dehydrated masterbatch, compr...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K3/22C08K5/098C08J3/22
CPCC08J3/226C08J2323/06C08K5/098C08K13/02C08K2003/2206
Inventor 黄旭雷
Owner 常州圣雅塑母粒有限公司
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