A kind of chemical-resistant high-density polyethylene resin and preparation method thereof

A high-density polyethylene and chemical-resistant technology, applied in the field of polymer chemistry, can solve the problems of limited chemical resistance of high-density polyethylene, and achieve the effects of excellent comprehensive performance, good dense structure and excellent performance.

Active Publication Date: 2022-07-12
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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  • A kind of chemical-resistant high-density polyethylene resin and preparation method thereof

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Effect test

Embodiment 1

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

[0047] The preparation method includes the following steps: taking each raw material according to the selected mass fraction and adding it to a high-speed mixer to mix evenly, adding the evenly mixed material to a special extruder for extrusion and granulation, and the temperature of the extruder is 180 DEG C. The rotational speed of the screw is 150 r / 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 in parts by mass: including 80 parts of high-density polyethylene, 13 parts of xanthan gum, 0.4 parts of di-tert-butyl peroxide, and 0.5 parts of triallyl Isocyanurate, 0.06 parts tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate]pentaerythritol, 0.12 parts tris[2,4-di-tert-butylphenyl]idene Phosphate ester, 3 parts boron nitride, 3 parts polydiethynyl biphenyl.

[0050] The preparation method includes the following steps: taking each raw material according to a selected mass fraction and adding it to a high-speed mixer to mix evenly, adding the evenly mixed material to a special extruder for extrusion and granulation, and the temperature of the extruder is 200 DEG C. The rotational speed of the screw is 100 r / 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 in parts by mass: 76 parts of high-density polyethylene, 15 parts of xanthan gum, 0.5 parts of di-tert-butyl peroxide, and 0.6 parts of triallyl Isocyanurate, 0.08 part tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate]pentaerythritol, 0.15 part tris[2,4-di-tert-butylphenyl]phosphite ester, 5 parts silicon phosphide, 5 parts polydiethynyl biphenyl.

[0053] The preparation method includes the following steps: taking each raw material according to a selected mass fraction and adding it to a high-speed mixer to mix evenly, adding the uniformly mixed material to a special extruder for extrusion and granulation, and the temperature of the extruder is 220 DEG C. The rotation speed of the screw is 80 r / 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, in particular to a chemical-resistant high-density polyethylene resin and a preparation method thereof. The chemical-resistant high-density polyethylene resin is prepared by reacting raw materials comprising the following components: 65-85 parts by weight of high-density polyethylene resin, 8-18 parts by weight of xanthan gum, and 0.8-18 parts by weight of polyarylacetylene-based resin 8 parts by weight, 0.2-0.8 part by weight of cross-linking agent, 0.3-0.8 part by weight of cross-linking auxiliary, 0.04-0.1 part by weight of main antioxidant, 0.08-0.20 part by weight of auxiliary antioxidant, and 0.5-8 part by weight of inorganic auxiliary share. The chemical-resistant high-density polyethylene resin of the invention has excellent comprehensive properties, especially high-temperature chemical resistance, has resistance to complex chemical corrosion environments, and can be widely used in packaging materials such as bottles, barrels, and geomembranes and so on, broadening its application field.

Description

technical field [0001] The invention belongs to the field of polymer chemistry, in particular 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, and the market economy of selective use has made the competition of polymer materials more and more fierce. High-density polyethylene is superior to lower-density polyethylene due to its strength, rigidity, tensile, compression, bending and other mechanical properties, and is light, cheap, odorless, non-toxic, and has excellent moisture resistance and 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, the consumption of high-density polyethylene (HDPE) ...

Claims

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Application Information

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Patent Type & Authority Patents(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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