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Use of basic magnesium sulfate whiskers as cold resisting agent of polypropylene

A technology of magnesium sulfate whisker and polypropylene, which is applied in the field of polymer material modification to achieve the effect of broadening the scope of use and maintaining good effect.

Active Publication Date: 2016-06-08
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of basic magnesium sulfate whiskers as a polypropylene cold-resistant agent has not yet been reported

Method used

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  • Use of basic magnesium sulfate whiskers as cold resisting agent of polypropylene
  • Use of basic magnesium sulfate whiskers as cold resisting agent of polypropylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Parts by weight are 100 parts of polypropylene HP500N, 0.5 part of basic magnesium sulfate whisker WS-1S, 0.1 part of antioxidant Irganox1010, 0.1 part of antioxidant Irganox168, 0.1 part of lubricant EBS, 0.05 part of light Stabilizer UV-3853PP5 and 0.05 parts of light stabilizer UV-5411 are mixed uniformly by high mixer, then extruded and granulated by twin-screw extruder. Next, a standard sample is molded by a single-screw injection molding machine, placed at a temperature of 23°C±2°C and a humidity of RH50%±5% for at least 24 hours, and then the notched Izod impact test is performed. The low temperature conditions are: -30°C, 3 hours. The test results are shown in Table-1.

Embodiment 2

[0041] The parts by weight are 100 parts of polypropylene HA5029, 1.5 parts of basic magnesium sulfate whiskers WS-3D, 0.2 parts of antioxidant Irganox1010, 0.3 parts of antioxidant Irganox168, 0.3 parts of lubricant EBS, 0.2 parts of Light stabilizer UV-3853PP5 and 0.1 part of light stabilizer UV-5411 are mixed uniformly by a high mixer, and then extruded and granulated by a twin-screw extruder. Next, a standard sample is molded by a single-screw injection molding machine, placed at a temperature of 23°C±2°C and a humidity of RH50%±5% for at least 24 hours, and then the notched Izod impact test is performed. The low temperature conditions are: -30°C, 3 hours. The test results are shown in Table-1.

Embodiment 3

[0043] Be the polypropylene HI831 of 100 parts by weight, the basic magnesium sulfate whisker WS-1CY of 1.0 parts, the antioxidant Irganox1010 of 0.2 parts, the antioxidant Irganox168 of 0.2 parts, the lubricant EBS of 0.2 parts, the lubricant EBS of 0.15 parts Light stabilizer UV-3853PP5 and 0.1 part of light stabilizer UV-5411 are mixed uniformly by a high mixer, and then extruded and granulated by a twin-screw extruder. Next, a standard sample is molded by a single-screw injection molding machine, placed at a temperature of 23°C±2°C and a humidity of RH50%±5% for at least 24 hours, and then the notched Izod impact test is performed. The low temperature conditions are: -30°C, 3 hours. The test results are shown in Table-1.

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PUM

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Abstract

The invention provides Use of basic magnesium sulfate whiskers as a cold resisting agent of polypropylene. The basic magnesium sulfate whiskers have the diameter D smaller than 1.0 micron, the length L of 10 to 60 microns and the length-diameter ratio L / D greater than 30, and the surfaces of the basic magnesium sulfate whiskers are treated by an aluminum-titanium complex coupling agent. By adding the basic magnesium sulfate whiskers into polypropylene resin, the low-temperature toughness retentivity of polypropylene materials can be obviously improved. The general addition level of the basic magnesium sulfate whiskers is 0.5wt% to 1.5wt% the mass of polypropylene, and then, the low-temperature toughness retentivity of the polypropylene materials at the temperature of -30 DEG C can be 50% or more; and the low-temperature toughness retentivity of the polypropylene materials without the cold resisting agent provided by the invention at the temperature of -30 DEG C is lower than 30%.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to the use of a basic magnesium sulfate whisker as a cold-resistant agent for polypropylene. Background technique [0002] With the development of modern technology, people have higher and higher requirements for material performance, especially for general-purpose plastic polypropylene materials. Polypropylene is mainly used in automobiles, home appliances, pipes, medical treatment, food and other fields. Due to the poor low-temperature toughness of polypropylene materials, if it is used in low-temperature environments, it needs to be toughened and modified to improve the low-temperature toughness of polypropylene materials. The common material for improving low-temperature toughness of polypropylene is EPDM rubber (EPDM ), vinyl elastomer (POE), styrene-butadiene-styrene elastomer (SBS), hydrogenated styrene-butadiene-styrene elastomer (SEBS). For example: Chinese pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/04C08K7/08C08K3/30C08K5/134C08K5/526C08L23/12
Inventor 杨桂生俞飞
Owner HEFEI GENIUS NEW MATERIALS