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Weather-resistant polyoxymethylene

A polyoxymethylene and weather-resistant technology, applied in the chemical field, can solve problems such as difficult processing

Inactive Publication Date: 2016-04-06
QINGDAO YISHIBAO PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Homopolymer materials have good tensile strength and fatigue resistance, but are not easy to process

Method used

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  • Weather-resistant polyoxymethylene
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  • Weather-resistant polyoxymethylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) Take the raw materials of the following weight ratio:

[0012] Polyoxymethylene raw material: 85 Antioxidant: 2.0 Ultraviolet light absorber: 9.0 TAS-2A dispersion lubricant: 1.0 Nano zinc oxide: 3.0 Stabilizer: 2.0 White oil: Appropriate amount.

[0013] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, the fourth zone is 200-205°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

[0014] The physical performance parameters of the above-mentioned weather-resistant polyoxymethylene are as follows:

[0015]

[0016] According to the above data, the above-mentioned weather-resistant polyoxymethylene is a weather-resistant ...

Embodiment 2

[0018] (1) Take the raw materials of the following weight ratio:

[0019] Polyoxymethylene raw material: 75 Antioxidant: 1.0 UV absorber: 7.0 TAS-2A dispersion lubricant: 0.5 nanometer zinc oxide: 1.0-5.0 Stabilizer: 1.0 White oil: appropriate amount.

[0020] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, the fourth zone is 200-205°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

[0021] The physical performance parameters of the above-mentioned weather-resistant polyoxymethylene are as follows:

[0022]

[0023]

[0024] According to the above data, the above-mentioned weather-resistant polyoxymethylene is a weather-resi...

Embodiment 3

[0026] (1) Take the raw materials of the following weight ratio:

[0027] Polyoxymethylene raw material: 90 Antioxidant: 3.0 Ultraviolet light absorber: 11.0 TAS-2A Dispersed lubricant: 1.5 Nano zinc oxide: 5.0 Stabilizer: 3.0 White oil: Appropriate amount.

[0028] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, the fourth zone is 200-205°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

[0029] The physical performance parameters of the above-mentioned weather-resistant polyoxymethylene are as follows:

[0030]

[0031] According to the above data, the above-mentioned weather-resistant polyoxymethylene is a weather-resistant ...

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Abstract

The invention aims to provide weather-resistant polyoxymethylene which is resistant to acid, strong alkali, sunlight ultraviolet radiation and the like. The weather-resistant polyoxymethylene comprises the following components in parts by weight: 75-90 parts of a polyoxymethylene raw material, 1.0-3.0 parts of an antioxidant, 7.0-11.0 parts of an ultraviolet absorber, 0.5-1.5 parts of a TAS-2A dispersed lubricant, 1.0-5.0 parts of nano zinc oxide, 1.0-3.0 parts of a stabilizing agent, and an appropriate amount of white oil. The weather-resistant polyoxymethylene preferably comprises the following components in parts by weight: 85 parts of the polyoxymethylene raw material, 2.0 parts of the antioxidant, 9.0 parts of the ultraviolet absorber, 1.0 part of the TAS-2A dispersed lubricant, 3.0 parts of nano zinc oxide, 2.0 parts of the stabilizing agent, and an appropriate amount of the white oil. The weather-resistant polyoxymethylene provided by the invention is resistant to acid, strong alkali and sunlight ultraviolet radiation, and cannot influence mechanical properties of a material at the same time.

Description

technical field [0001] The invention belongs to the field of chemistry, in particular to polyoxymethylene. Background technique [0002] POM is a tough and elastic material with good creep resistance, geometric stability and impact resistance even at low temperatures. Polyoxymethylene has both homopolymer and copolymer materials. Homopolymer materials have good tensile strength and fatigue resistance, but are not easy to process. Copolymer materials have good thermal stability, chemical stability and easy processing. Both homopolymer and copolymer materials are crystalline materials and are not easy to absorb moisture. Polyoxymethylene has no side chains, high density, high crystallinity linear polymer, and has excellent comprehensive properties. Its wear resistance and self-lubrication are also superior to most engineering plastics, and it has good oil resistance and peroxide resistance. It is not resistant to acid, strong alkali and ultraviolet radiation of sunlight. ...

Claims

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Application Information

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IPC IPC(8): C08L59/00C08L23/08C08K13/02C08K3/22C08K5/01C08K5/132B29C47/92B29C48/92
Inventor 栾蓉王世字
Owner QINGDAO YISHIBAO PLASTIC
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