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Foaming master batch and preparation method thereof

A technology of foaming masterbatch and production method, which is applied in the chemical industry and can solve problems such as environmental pollution, flying dust, poor interface bonding, etc.

Inactive Publication Date: 2020-04-24
湖南东庆管道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to foaming, dust will fly during direct use, polluting the environment and damaging health
At the same time, foaming is directly mixed in the resin matrix, and due to factors such as uneven dispersion and poor interface bonding, it cannot fully exert its reinforcing effect on the resin.
These have affected the use of foaming

Method used

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  • Foaming master batch and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of foam masterbatch, comprises the steps:

[0023] Step 1, cutting the amorphous polyisobutylene into small pieces of polyisobutylene through a tablet press;

[0024] Step 2: Mix 10.5% polyisobutylene, 35% inorganic foaming agent, 24% organic foaming agent, 2.5% antioxidant, 3% coupling agent, 5% stearic acid, and POE20% below 90°C to obtain Mixture;

[0025] Step 3: Add the mixture into a twin-screw extruder for kneading, extrude, cool and pelletize to obtain foam masterbatch.

Embodiment 2

[0027] A kind of preparation method of foam masterbatch, comprises the steps:

[0028] Step 1, cutting the amorphous polyisobutylene into small pieces of polyisobutylene through a tablet press;

[0029] Step 2, 10.5% of polyisobutylene, 15% of inorganic foaming agent, 24% of organic foaming agent, 2.5% of antioxidant, 3% of coupling agent, 5% of stearic acid, POE40% by weight are stirred and mixed below 90°C get the mixture evenly;

[0030] Step 3: Add the mixture into a twin-screw extruder for kneading, extrude, cool and pelletize to obtain foam masterbatch.

Embodiment 3

[0032] A kind of preparation method of foam masterbatch, comprises the steps:

[0033] Step 1, cutting the amorphous polyisobutylene into small pieces of polyisobutylene through a tablet press;

[0034] Step 2, 8% of polyisobutylene, 28% of inorganic foaming agent, 22% of organic foaming agent, 0.1% of antioxidant, 1% of coupling agent, 2% of stearic acid, POE38.9% are stirred and mixed below 90°C get the mixture evenly;

[0035] Step 3: Add the mixture into a twin-screw extruder for kneading, extrude, cool and pelletize to obtain foam masterbatch.

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Abstract

The invention discloses a foaming master batch and a preparation method thereof. The preparation method comprises the following steps: step 1, cutting polyisobutene into small pieces of polyisobutene;step 2, evenly stirring and mixing 4.5-10.5% of polyisobutene, 15-35% of an inorganic foaming agent, 12-24% of an organic foaming agent, 0.1-2.5% of an antioxidant, 1-3% of a coupling agent, 2-5% ofstearic acid and 20-40% of POE at a temperature of 90 DEG C or below to obtain a mixture; and step 3, adding the mixture into a double-screw extruder, mixing, extruding, cooling and cutting to obtainthe foaming master batch. The total specific gravity of the organic foaming agent and the inorganic foaming agent in the master batch can be increased to 50% or above, the variety of used raw materials is few, the production process is short, the operation is easy, no small molecular precipitate exists, and the master batch can be used for enhancing modified low-VOC low-volatility polyolefin and other resin.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a foam masterbatch and a preparation method thereof. Background technique [0002] Due to foaming, dust will fly during direct use, polluting the environment and damaging health. At the same time, foaming is directly mixed in the resin matrix, and due to factors such as uneven dispersion and poor interface bonding, it cannot fully exert its reinforcing effect on the resin. These have all influenced the use of foaming. [0003] Therefore, the use of foaming usually requires prior mixing and granulation treatment. In order to further increase the proportion of foaming ingredients in the masterbatch, reduce the use of other additives, and improve the cost performance of the foaming masterbatch, this patent proposes a foaming masterbatch with polyisobutylene as the carrier. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/20C08K5/46C08K5/09C08K5/54C08J9/08C08J9/10C08J3/22
CPCC08J9/08C08J9/102C08J3/226C08J9/0042C08J9/0033C08J9/0023C08J2423/08C08J2423/20C08J2203/18C08J2203/02C08J2203/04C08K5/46C08K5/09C08K5/54
Inventor 宋季岭瞿进熊安军王来宝
Owner 湖南东庆管道科技有限公司
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