Composite polypropylene filling masterbatch and preparation method thereof

A technology of compounding polypropylene and filling masterbatch, applied in the field of filling materials, can solve problems such as singleness, and achieve the effects of improving dispersibility, improving processing fluidity, and improving impact strength

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 type of filler, which can improve a certain aspect of performance, but while improving a certain

Method used

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  • Composite polypropylene filling masterbatch and preparation method thereof
  • Composite polypropylene filling masterbatch and preparation method thereof
  • Composite polypropylene filling masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A composite polypropylene filler masterbatch, characterized in that it comprises the following components in parts by weight: 9.7 parts of polypropylene, 88 parts of composite powder, 2 parts of stabilizer, and 0.3 part of antioxidant; the composite powder contains The mixture of calcium carbonate: wollastonite: talcum powder with a mass ratio of 1:(2-5):(2-5).

[0035] The above-mentioned polypropylene has a melt index of 23-25 ​​g / 10 min at 230°C.

[0036] The above-mentioned calcium carbonate is 2500-mesh modified calcium carbonate obtained by adding 1.5% stearic acid at a speed of 500-2000 rpm and surface treatment at 110°C.

[0037] The aforementioned wollastonite is 1250-mesh modified wollastonite with an aspect ratio of 1: (15-20) obtained by adding 1.5% silane coupling agent at a speed of 500-2000 rpm and 140°C for surface treatment.

[0038] The talc powder mentioned above is a 3000-mesh modified talc powder obtained by adding 1.5% titanate coupling agent at a...

Embodiment 2

[0052] A composite polypropylene filler masterbatch, characterized in that it comprises the following components in parts by weight: 7 parts of polypropylene, 90 parts of composite powder, 2.5 parts of stabilizer, and 0.5 part of antioxidant; the composite powder contains The mixture of calcium carbonate: wollastonite: talcum powder with a mass ratio of 1:(2-5):(2-5).

[0053] The above-mentioned polypropylene has a melt index of 23-25 ​​g / 10 min at 230°C.

[0054] The above-mentioned calcium carbonate is 3000-mesh modified calcium carbonate obtained by adding 1% stearic acid at a speed of 500-2000 rpm and surface treatment at 105°C.

[0055] The aforementioned wollastonite is 1500-mesh modified wollastonite with an aspect ratio of 1: (15-20) obtained by surface treatment at a speed of 500-2000 rpm and 130° C. by adding 1% silane coupling agent.

[0056] The talc powder mentioned above is a 3500-mesh modified talc powder obtained by surface treatment at 120° C. by adding 1% t...

Embodiment 3

[0070] A composite polypropylene filler masterbatch, characterized in that it comprises the following components in parts by weight: 14 parts of polypropylene, 85 parts of composite powder, 1 part of stabilizer, and 0.1 part of antioxidant; the composite powder contains The mixture of calcium carbonate: wollastonite: talcum powder with a mass ratio of 1:(2-5):(2-5).

[0071] The above-mentioned polypropylene has a melt index of 23-25 ​​g / 10 min at 230°C.

[0072] The above-mentioned calcium carbonate is 2000-mesh modified calcium carbonate obtained by adding 2% stearic acid at a speed of 500-2000 rpm and surface treatment at 120°C.

[0073] The above-mentioned wollastonite is 1000-mesh modified wollastonite with an aspect ratio of 1: (15-20) obtained by surface treatment at a speed of 500-2000 rpm and 150° C. by adding 2% silane coupling agent.

[0074] The above-mentioned talc powder is 2500-mesh modified talc powder obtained by adding 2% titanate coupling agent at a speed o...

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Abstract

The invention discloses a composite polypropylene filling masterbatch comprising the following components in parts by weight: 7-14 parts of polypropylene, 85-90 parts of a composite powder, 1-2.5 parts of a stabilizer, and 0.1-0.5 part of an antioxidant; the composite powder contains a mixture having the mass ratio of calcium carbonate to wollastonite to a talcum powder of 1 to (2-5) to (2-5). The invention also provides a preparation method of the composite polypropylene filling masterbatch. The product has the advantages of high dispersibility and good compatibility with polypropylene, and can improve the comprehensive performance of a polypropylene modified material.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of filling materials, in particular to a composite polypropylene filling masterbatch 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 degrad...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08K13/06C08K9/04C08K9/06C08K3/26C08K3/34C08K5/20C08K5/526C08K5/134C08J3/22
CPCC08L23/12C08J3/226C08J2323/12C08L2205/02C08L2205/025C08L2205/03C08L2310/00C08L23/0853C08K13/06C08K9/04C08K9/06C08K2003/265C08K3/34C08K5/20C08K5/526C08K5/1345
Inventor 彭鹤松邹勇李裕乐曾伟万江霖
Owner JIANGXI HONGYI POLYMERIC MATERIALS
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