Chemical-resistant high-density polyethylene resin and preparation method thereof

A high-density polyethylene, chemical-resistant technology, applied in the field of polymer chemistry, can solve problems such as the limitation of high-density polyethylene chemical resistance

Active Publication Date: 2020-10-23
WANHUA CHEM GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the limitation of the existing high-density polyethylene chemical resistance. The purpose of the present invention is to provide a chemical-resistant high-density polyethylene resin with excellent chemical resistance, and to provide its preparation method

Method used

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  • Chemical-resistant high-density polyethylene resin and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0046] The raw material of the chemical-resistant high-density polyethylene resin of this embodiment includes the following components by mass: 70 parts of high-density polyethylene, 10 parts of xanthan gum, 0.3 part of di-tert-butyl peroxide, 0.4 part of triallyl Isocyanurate, 0.05 part of tetra[β-(3,5-di-tert-butyl-4hydroxyphenyl)propionic acid]pentaerythritol ester, 0.10 part of tris[2,4-di-tert-butylphenyl]phosphorous acid Ester, 1 part silicon carbide, 1 part polydiethynyl biphenyl.

[0047] The preparation method includes the following steps: adding each raw material according to the selected mass parts into a high-speed mixer and mixing uniformly, adding the uniformly mixed materials into a special extruder for extrusion granulation, and the extruder temperature is 180°C. The screw speed is 150r / min, and the chemical-resistant high-density polyethylene resin is obtained.

Embodiment 2

[0049] The raw material of the chemical-resistant high-density polyethylene resin of this embodiment includes the following components by mass: 80 parts of high-density polyethylene, 13 parts of xanthan gum, 0.4 parts of di-tert-butyl peroxide, 0.5 parts of triallyl Isocyanurate, 0.06 parts of tetra[β-(3,5-di-tert-butyl-4hydroxyphenyl)propionic acid]pentaerythritol ester, 0.12 parts of tris[2,4-di-tert-butylphenyl] Phosphate ester, 3 parts boron nitride, 3 parts polydiethynyl biphenyl.

[0050] The preparation method includes the following steps: adding each raw material according to the selected mass parts into a high-speed mixer and mixing uniformly, adding the uniformly mixed materials into a special extruder for extrusion and granulation, the temperature of the extruder is 200°C, The screw speed is 100r / min, and the chemical-resistant high-density polyethylene resin is obtained.

Embodiment 3

[0052] The raw material of the chemical-resistant high-density polyethylene resin of this embodiment includes the following components by mass: 76 parts of high-density polyethylene, 15 parts of xanthan gum, 0.5 part of di-tert-butyl peroxide, 0.6 part of triallyl Isocyanurate, 0.08 parts of tetra[β-(3,5-di-tert-butyl-4hydroxyphenyl)propionic acid]pentaerythritol ester, 0.15 parts of tris[2,4-di-tert-butylphenyl]phosphorous acid Ester, 5 parts silicon phosphide, 5 parts polydiethynyl biphenyl.

[0053] The preparation method includes the following steps: adding each raw material according to the selected mass parts into a high-speed mixer and mixing uniformly, adding the uniformly mixed materials into a special extruder for extrusion and granulation, the temperature of the extruder is 220°C, The screw speed is 80r / min, and the chemical-resistant high-density polyethylene resin is obtained.

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Abstract

The invention belongs to the field of polymer chemistry, and particularly relates to chemical-resistant high-density polyethylene resin and a preparation method thereof. The chemical-resistant high-density polyethylene resin is prepared from, by weight, 65 to 85 parts of high-density polyethylene resin, 8 to 18 parts of xanthan gum, 0.8 to 8 parts of polyarylethynyl resin, 0.2 to 0.8 part of a cross-linking agent, 0.3 to 0.8 part of a cross-linking auxiliary agent, 0.04 to 0.1 part of a main antioxidant, 0.08 to 0.20 part of an auxiliary antioxidant and 0.5 to 8 parts of an inorganic auxiliaryagent through a reaction. The chemical-resistant high-density polyethylene resin provided by the invention has excellent comprehensive properties, especially excellent high-temperature chemical resistance, has tolerance to complex chemical corrosion environments, can be widely applied to packaging materials, geomembranes and the like of bottles, barrels and the like, and widens the application field of the packaging materials, geomembranes and the like.

Description

Technical field [0001] The invention belongs to the field of polymer chemistry, and specifically relates to a chemical-resistant high-density polyethylene resin and a preparation method thereof. Background technique [0002] With the wide application of polymer materials, users have higher and higher requirements for all aspects of polymer materials. The market economy of preferential use makes the competition of polymer materials more and more intense. High-density polyethylene due to its low mechanical properties such as strength, rigidity, tensile, compression, bending, etc. Density polyethylene is superior, and it is lightweight, inexpensive, odorless, non-toxic, and has excellent moisture resistance and excellent heat resistance. , Wear resistance and impact strength, so it is widely used in the preparation of injection molding products, blow molding products, pipe products, sheet products, wire and cable, film products, etc. In the next few years, China's high-density poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L5/02C08L49/00C08K5/134C08K5/526C08K3/34
CPCC08L23/06C08L2201/08C08L2205/03C08L2312/00C08L2207/062C08L5/02C08L49/00C08K5/1345C08K5/526C08K3/34
Inventor 蓝程程徐彦龙李允升翟一鸣黄舜尧朱文俊吴庆虎牛奇高晴晴秦中宇张起政王磊张宏科
Owner WANHUA CHEM GRP CO LTD
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