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Inorganic mineral powder filling foaming masterbatch and preparation method thereof

A technology of inorganic mineral powder and foaming masterbatch, which is applied in the preparation of filling foaming masterbatch and in the field of plastic processing, which can solve the problems of high cost and achieve compact appearance, reduce production cost and excellent comprehensive performance

Inactive Publication Date: 2015-12-23
QUANGANG PETROCHEM RES INST OF FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Today, with the rapid development of the polymer industry, a single masterbatch is often unable to meet the needs of various materials. Adding multiple masterbatches, sometimes cannot fully play the functions of each functional masterbatch, and will cause high costs. Therefore, it is necessary Develop multi-functional masterbatch, through one addition, make the material have multiple functions, reduce costs, simplify the process, and broaden the application field of materials

Method used

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  • Inorganic mineral powder filling foaming masterbatch and preparation method thereof
  • Inorganic mineral powder filling foaming masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] ① Foaming agent activation raw material formula:

[0031] It is prepared by mixing 25 parts of foaming agent azodicarbonamide, 1.5 parts of dicumyl peroxide, 15 parts of stearic acid and 58.5 parts of liquid paraffin.

[0032] ② Filling foam masterbatch raw material formula:

[0033] 80 parts of heavy calcium carbonate, 8 parts of polyethylene, 4 parts of polyethylene wax, 1 part of aluminate coupling agent, 0.6 part of stearic acid, 0.4 part of zinc stearate, 6 parts of activated foaming agent.

[0034] ① Preparation of foaming agent activation:

[0035] The foaming agent azodicarbonamide, dicumyl peroxide, stearic acid and liquid paraffin were mixed and dispersed at about 95°C with an emulsifier at high speed for 12 minutes to obtain an activated foaming agent;

[0036] ② Preparation of filling foam masterbatch:

[0037] First, add the heavy calcium carbonate powder into a high-speed mixer and stir to above 100°C to fully remove the moisture in the heavy calcium ca...

Embodiment 2

[0041] The preparation method of this embodiment is the same as that of Example 1, except that the polypropylene and the foaming masterbatch prepared in this embodiment are mixed at a high speed at a mass ratio of 80:40 when preparing the inorganic mineral powder filled polypropylene micro-foaming material Mixing in the machine for 4 minutes, and then injection molding to obtain polypropylene micro-foaming material.

[0042] The photo of the cross-sectional cell structure of the heavy calcium carbonate powder filled with polypropylene micro-foaming material prepared in this example is shown in figure 2 . The density of the filled expanded polypropylene unfired material is 1.06g / cm 2 , the density of the filled polypropylene material prepared without foaming agent is 1.12g / cm 2 .

Embodiment 3

[0044] ① Foaming agent activation raw material formula:

[0045] It is prepared by mixing 28 parts of foaming agent azodicarbonamide, 1.6 parts of dicumyl peroxide, 12 parts of stearic acid and 58.4 parts of liquid paraffin.

[0046] ② Filling foam masterbatch raw material formula:

[0047] 75 parts of talcum powder, 12 parts of polyethylene, 6 parts of polyethylene wax, 1.5 parts of aluminate coupling agent, 1 part of stearic acid, 0.5 parts of zinc stearate, and 4 parts of activated foaming agent.

[0048] ① Preparation of foaming agent activation:

[0049] The foaming agent azodicarbonamide, dicumyl peroxide, stearic acid and liquid paraffin were mixed and dispersed at about 100°C with an emulsifier at high speed for 14 minutes to obtain an activated foaming agent;

[0050] ② Preparation of filling foam masterbatch:

[0051] First, add the talc powder into the high-speed mixer and stir to above 100°C to fully remove the moisture in the talc powder; then add the coupling ...

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Abstract

The invention discloses an inorganic mineral powder filling foaming masterbatch and a preparation method thereof. The method comprises the steps that polyolefin resin serves as a carrier, and inorganic mineral powder, dispersant, coupling agents, lubricant and activated foamer are added and evenly mixed to be pelletized through extrusion to prepare the filling foaming masterbatch. The activated foamer is prepared by conducting high-speed shearing and mixing on an adequate amount of azodicarbonamide, dicumyl peroxide, stearic acid and liquid paraffin through an emulsifying machine at a certain temperature. The inorganic mineral powder filling foaming masterbatch prepared through the method contains highly filling inorganic mineral powder and an adequate amount of foamer, the filling foaming effect is good, the cost is low, and the preparation technology is simple.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, relates to the field of preparation of a filling foaming masterbatch, in particular to an inorganic mineral powder filling foaming masterbatch and a preparation method thereof. Background technique [0002] Masterbatch is a pellet obtained by mixing and kneading various additives, fillers and a small amount of carrier resin in the plastic processing and molding process. Filler masterbatch is a kind of masterbatch, and its main component is filler. The role of the filler masterbatch is to add more cheap fillers conveniently and more while ensuring good processing performance and product performance, so as to achieve the purpose of reducing costs and improving processability and product performance. The commonly used polyolefin filler masterbatch is generally composed of carrier polyolefin resin, dispersant, modifier and filler. [0003] Foaming masterbatch is a new type of foaming pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L91/06C08K13/06C08K3/26C08K3/34C08K5/09C08K5/098C08J3/22C08J9/10B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/9258B29C2948/92704C08J3/226C08J9/103C08J2203/04C08J2323/12C08J2423/06C08K2201/014C08L2203/14C08L2205/025C08L2205/035C08L23/06C08L91/06C08K13/06C08K2003/265C08K5/09C08K5/098C08K3/34
Inventor 陈庆华李林贵杨松伟钱庆荣曹长林黄宝铨龚建
Owner QUANGANG PETROCHEM RES INST OF FUJIAN NORMAL UNIV
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