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Compound powder for modified polypropylene and preparation method thereof

A technology of composite powder and polypropylene, which is applied in the field of filling materials, can solve problems such as singleness, and achieve the effects of improving dispersion, reducing production costs, and increasing bonding

Inactive Publication Date: 2017-03-29
JIANGXI HONGYI POLYMERIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional inorganic powder filler modified polypropylene uses a single filler variety, which can improve a certain performance, but it will affect other performances while improving a certain performance, so it is necessary to develop new filler modified materials , in order to comprehensively improve the performance of modified polypropylene

Method used

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  • Compound powder for modified polypropylene and preparation method thereof
  • Compound powder for modified polypropylene and preparation method thereof
  • Compound powder for modified polypropylene and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A composite powder for modified polypropylene, characterized in that it contains the following components in parts by weight: 1 part of calcium carbonate surface-treated with stearic acid, 2-5 parts of wollastonite treated with a silane coupling agent, titanium 2-5 parts of talcum powder treated with ester coupling agent.

[0033] The preparation process of the calcium carbonate of described stearic acid surface treatment is that stearic acid is added in 2500 order calcium carbonates, and the addition amount of stearic acid is 1.5% of calcium carbonate quality, mixes under the rotating speed of 500-2000 rev / min Modification, modification temperature 110°C, modification time 40min.

[0034] The preparation process of the wollastonite treated with the silane coupling agent is to add the silane coupling agent to 1250 mesh wollastonite, the aspect ratio of the wollastonite is 1:(15~20), and the silane coupling agent is added The amount is 1.5% of wollastonite mass, mixed a...

Embodiment 2

[0045] A composite powder for modified polypropylene, characterized in that it contains the following components in parts by weight: 1 part of calcium carbonate surface-treated with stearic acid, 2-5 parts of wollastonite treated with silane coupling agent, titanium 2-5 parts of talcum powder treated with ester coupling agent.

[0046] The preparation process of the calcium carbonate of described stearic acid surface treatment is that stearic acid is added in 2000 mesh calcium carbonate, and the amount of stearic acid added is 1% of calcium carbonate quality, mixes under the rotating speed of 500-2000 rev / min Modification, modification temperature 105°C, modification time 45min.

[0047] The preparation process of the wollastonite treated with the silane coupling agent is to add the silane coupling agent to the 1000 mesh wollastonite, the aspect ratio of the wollastonite is 1:(15~20), and the silane coupling agent is added The amount is 1% of the mass of wollastonite, mixed a...

Embodiment 3

[0058] A composite powder for modified polypropylene, characterized in that it contains the following components in parts by weight: 1 part of calcium carbonate surface-treated with stearic acid, 2-5 parts of wollastonite treated with a silane coupling agent, titanium 2-5 parts of talcum powder treated with ester coupling agent.

[0059] The preparation process of the calcium carbonate of described stearic acid surface treatment is that stearic acid is added in 3000 order calcium carbonates, and the addition amount of stearic acid is 2% of calcium carbonate quality, mixes under the rotating speed of 500-2000 rev / min Modification, modification temperature 120°C, modification time 30min.

[0060] The preparation process of the wollastonite treated with the silane coupling agent is to add the silane coupling agent to 1500 mesh wollastonite, the aspect ratio of the wollastonite is 1:(15~20), and the silane coupling agent is added The amount is 2% of the wollastonite mass, mixed a...

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Abstract

The invention aims at providing compound powder for modified polypropylene. The compound powder is characterized by being prepared from the following components in parts by weight: 1 part of calcium carbonate subjected to surface treatment by stearic acid, 2-5 parts of wollastonite treated by a silane coupling agent and 2-5 parts of talcum powder treated by a titanate coupling agent. The invention further provides a preparation method of the compound powder for modified polypropylene. By adopting the compound powder provided by the invention, the compatibility of powder filling and polypropylene can be improved, and performances of modified polypropylene are comprehensively improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of filling materials, in particular to a filling powder for modified polypropylene and a preparation method thereof. [0003] 【Background technique】 [0004] Polypropylene has excellent processing performance, and various processing methods can be used to produce different products for various purposes. However, polypropylene is brittle and has low fracture and tensile strength. Therefore, it is necessary to use modification methods to improve its inherent shortcomings and increase new features. In order to reduce costs with the greatest benefit, the use of inorganic powder filling modification has become the main way of polypropylene modification. Filling modified polypropylene with high-performance inorganic powder not only greatly reduces the production cost, but also significantly improves its fracture productivity and molding shrinkage rate, especially after being used and discarded, it can also degrade ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K9/04C08K3/26C08K9/06C08K3/34
CPCC08L23/12C08K2201/005C08K2201/014C08K2201/016C08L2201/08C08L2205/02C08L23/0853C08K9/04C08K2003/265C08K9/06C08K3/34
Inventor 彭鹤松李裕乐曾伟万江霖李永亮
Owner JIANGXI HONGYI POLYMERIC MATERIALS
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