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Toughened and strengthened master batch

A technology for toughening and strengthening masterbatches and mass parts, which is applied in the field of preparation of toughening and strengthening masterbatches, which can solve the problems of powder splashing, insignificant toughening and strengthening effects, unfavorable cleaning production, etc., and achieve high modulus and improve toughness and the effect of intensity

Inactive Publication Date: 2010-08-11
NANJING JINSHAN AUTOMOBILE ENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The joint addition of elastomer and inorganic rigid particles can improve the strength and toughness of the material at the same time, but the toughening and strengthening effect of ordinary inorganic rigid particles is not obvious. At the same time, the inorganic rigid particles are powder, which is easy to cause powder splashing during processing, which is not conducive to cleaning Production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Take 100kg toughened and reinforced masterbatch as an example:

[0031] High density polyethylene 20kg;

[0032] Calcium carbonate whiskers 50kg;

[0033] POE elastomer 27.2kg;

[0034] Titanate coupling agent 1kg;

[0035] Calcium stearate 1kg;

[0036] Antioxidant 1010 400g;

[0037] Antioxidant DLTP 400g.

[0038] The preparation process includes the following steps:

[0039] (1) Dry the whiskers at 100°C for 30 minutes;

[0040] (2) Add the whiskers, polyethylene, elastomer, coupling agent, lubricant, and antioxidant to the high-speed mixer and stir at high speed for 15 minutes;

[0041] (3) After the above-mentioned mixed materials are extruded and pelletized by an extruder, the finished product reinforced and toughened masterbatch 1 is obtained.

Embodiment 2

[0042] Example 2: Take 100Kg toughening and strengthening masterbatch as an example:

[0043] Low density polyethylene 15kg;

[0044] Potassium titanate whiskers 60kg;

[0045] POE elastomer 22kg;

[0046] Titanate coupling agent 1kg;

[0047] Zinc stearate 1kg;

[0048] Antioxidant 1010 500g;

[0049] Antioxidant DLTP 500g.

[0050] The preparation process includes the following steps:

[0051] (1) Dry the whiskers at 80°C for 45 minutes;

[0052] (2) Add the whiskers, polyethylene, elastomer, coupling agent, lubricant, and antioxidant to the high-speed mixer and stir at high speed for 20 minutes;

[0053] (3) After the above-mentioned mixed materials are extruded and pelletized by an extruder, the finished product reinforced and toughened masterbatch 2 is obtained.

Embodiment 3

[0054] Example 3: Take 100Kg toughening and strengthening masterbatch as an example:

[0055] Low density polyethylene 10kg;

[0056] Calcium sulfate whisker 40kg

[0057] Calcium carbonate whiskers 32kg;

[0058] POE elastomer 15kg;

[0059] Aluminate coupling agent 1.2kg;

[0060] Calcium stearate 1.2kg;

[0061] Antioxidant 1010 600g;

[0062] Antioxidant DLTP 600g.

[0063] The preparation process includes the following steps:

[0064] (1) Dry the whiskers at 70°C for 60 minutes;

[0065] (2) Add the whiskers, polyethylene, elastomer, coupling agent, lubricant, and antioxidant to the high-speed mixer and stir at high speed for 30 minutes;

[0066] (3) After the above-mentioned mixed materials are extruded and pelletized by an extruder, the finished product reinforced and toughened masterbatch 3 is obtained.

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PUM

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Abstract

The invention relates to a toughened and strengthened master batch which is used for improving polyolefin, so that the toughening and the strengthening effect is significant, and simultaneously, clean production can be realized. The toughened and strengthened master batch is compounded from the following components: 10 to 20 mass parts of polyethylene, 50 to 75 mass parts of crystal whisker, 15 to 30 mass parts of elastomer, coupling agent which is 1 to 3 percent of the mass parts of the crystal whisker, lubricant which is 1 to 3 percent of the mass parts of the crystal whisker, and antioxidant which is 0.5 to 1 percent of the mass parts of the total mass. The invention mainly prepares the master batch from the crystal whisker, fills the polyolefin to toughen, strengthen and modify the master batch; and because the crystal whisker has high strength, high modulus, wear resistance, high temperature resistance, heat insulation and other excellent performance, the utilization of the crystal whisker to fill, toughen and strengthen the polyolefin has good effect. The invention first treats the surface of the crystal whisker so that the surface has activity and is easy to be compatible with a matrix, the crystal whisker is easy to be dispersed in materials, and the master batch prepared by the invention can greatly improve the toughness and the strength of the polyolefin.

Description

Technical field [0001] The invention relates to a preparation method of toughening and strengthening master batches. Background technique [0002] Polyolefin has a wide range of applications in production because of its simple production method, low price and good processing performance. However, due to its toughness, insufficient strength, and poor dimensional stability, its application range is limited. . It is of great significance to modify polyethylene and polypropylene to expand their application fields. At present, the main methods for toughening and strengthening polyolefin are as follows: [0003] 1. Toughening modification of polyolefin by elastomer [0004] Elastomers have high toughness. Blending modification with polyolefins can greatly improve the toughness of materials, but the strength of elastomers is low and the strength loss of elastomers is huge. [0005] 2. Inorganic rigid particles strengthen and modify polyolefins [0006] Extruding and pelletizing the inorgani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/20C08L23/06C08K7/08
Inventor 韩琛牛建勋陈芳欣宋德轩沈玉海汪家宝吴锡忠
Owner NANJING JINSHAN AUTOMOBILE ENG PLASTIC
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