TPE coated silicane cross-linked polyethylene composite material and preparation method thereof

A technology of cross-linked polyethylene and composite materials, which is applied in the field of TPE-coated silane cross-linked polyethylene composite materials and its preparation, can solve problems such as weak bonding, and achieve good bonding effect, stable coating and bonding, and excellent The effect of temperature and weather resistance

Active Publication Date: 2019-12-03
威海联桥新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

False encapsulation is mainly due to the fact that TPE itself has hot-melt viscosity, and there is no mutual erosion of the two materials at the cladding interface, and the bond is not firm

Method used

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  • TPE coated silicane cross-linked polyethylene composite material and preparation method thereof
  • TPE coated silicane cross-linked polyethylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of silane grafted polyethylene:

[0026] Prepare 100 parts of polyethylene, 5 parts of vinyltriethoxysilane, and 0.1 part of dicumyl peroxide in parts by weight, extrude and granulate through screw at 170°C to obtain silane-grafted polyethylene material, press Parts by weight Prepare 100 parts of polyethylene, 3 parts of tris(2,4-di-tert-butylphenyl) phosphite, 0.5 part of di-n-butyltin dilaurate, extrude and granulate through screw at 190°C to obtain Catalyzed polyethylene material, the silane grafted polyethylene material and the catalytic polyethylene material are mixed uniformly according to the weight ratio of 95:5 to obtain silane grafted polyethylene, wherein the polyethylene density is 0.91g / cm3, and the melt index is 20g / cm3. 10min.

[0027] (2) Preparation of TPE material:

[0028] Prepare the following raw materials in parts by weight: 25 parts of SEBS, 50 parts of white oil, 25 parts of polypropylene, 15 parts of maleic anhydride graft comp...

Embodiment 2

[0034] (1) Preparation of silane grafted polyethylene:

[0035]Prepare 80 parts of polyethylene, 1 part of vinyltriethoxysilane, and 0.15 parts of dicumyl peroxide in parts by weight, and extrude and granulate through a screw at 250 ° C to obtain a silane-grafted polyethylene material. Prepare 80 parts by weight of polyethylene, 6 parts of tris(2,4-di-tert-butylphenyl) phosphite, 1 part of di-n-butyltin dilaurate, extrude and granulate through screw at 220°C to obtain Catalyzed polyethylene material, the silane-grafted polyethylene material and the catalytic polyethylene material are mixed uniformly according to the weight ratio of 90:15 to obtain silane-grafted polyethylene, wherein the density of polyethylene is 0.93g / cm 3 , Melt index 10g / 10min.

[0036] (2) Preparation of TPE material:

[0037] Prepare the following raw materials in parts by weight: 45 parts in SEBS, 90 parts in white oil, 40 parts in polypropylene, 25 parts in maleic anhydride grafting compatibilizers, ...

Embodiment 3

[0043] (1) Preparation of silane grafted polyethylene:

[0044] Prepare 120 parts of polyethylene, 3 parts of vinyltriethoxysilane, and 0.1 part of dicumyl peroxide in parts by weight, extrude and granulate through screw at 220°C to obtain silane-grafted polyethylene material, press Parts by weight Prepare 120 parts of polyethylene, 4 parts of tris(2,4-di-tert-butylphenyl) phosphite, 2 parts of di-n-butyltin dilaurate, extrude and granulate through screw at 160°C to obtain Catalyzed polyethylene material, the silane-grafted polyethylene material and the catalytic polyethylene material are mixed uniformly according to the weight ratio of 85:5 to obtain silane-grafted polyethylene, wherein the density of polyethylene is 0.91g / cm 3 , Melt index 20g / 10min.

[0045] (2) Preparation of TPE material:

[0046] Prepare the following raw materials in parts by weight: 30 parts of SEBS, 60 parts of white oil, 20 parts of polypropylene, 25 parts of maleic anhydride graft compatibilizer, ...

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Abstract

The invention relates to a TPE coated silicane cross-linked polyethylene composite material and a preparation method thereof.Technical problems of low heat resistance and low environmental cracking resistance of the polyethylene material are solved, the TPE coated silicane cross-linked polyethylene composite materialincludessilicane cross-linked polyethylene and a TPE material, the silicane cross-linked polyethylene includesa silicane grafted polyethylene material and a catalytic polyethylene material, and the weight ratio of the silicane grafted polyethylene material and the catalytic polyethylene material is (80-95) to (5-20); the silicane grafted polyethylene material is prepared from the following components in parts by weight: 80-120 parts of polyethylene, 1-5 parts ofsilicane and0.04-0.15 part of an initiator; the catalytic polyethylene material is prepared from the following components in parts by weight: 80-120 partsof polyethylene, 3-6 parts of an antioxidant and0.5-3 parts ofa catalyst; and the TPE material is prepared from the following components in parts by weight:15-45 parts of SEBS, 30-90 parts of white oil, 20-60 parts of polypropylene, 5-25 parts of acompatibilizer and 0.01-0.1 part of an auxiliary agent. The invention providesthe preparation method of theTPE coated silicane cross-linked polyethylene composite material at the same time. The TPE coated silicanecross-linked polyethylene composite material and the preparation method thereof can be widely applied to the field of high polymer material preparation.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a TPE-coated silane crosslinked polyethylene composite material and a preparation method thereof. Background technique [0002] Thermoplastic elastomer TPE is a kind of high elasticity and high elongation of rubber, and has the processing characteristics of thermoplastics. It is safe and environmentally friendly, with a wide range of hardness adjustment, non-slip, soft and comfortable touch, excellent weather resistance, temperature resistance and fatigue resistance, and processing performance. Excellent, no need for vulcanization, recyclable and cost-effective. [0003] In the plastic industry, polyethylene is the plastic with the largest output and consumption, but its poor heat resistance and environmental stress cracking resistance limit its application in engineering. The cross-linked polyethylene can significantly improve its creep resistance, heat resistance, en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L23/06C08L53/02C08L23/12C08J3/24C08F255/02C08F230/08
CPCC08L51/06C08J3/246C08F255/02C08J2351/06C08J2323/06C08J2323/12C08J2353/02C08L2201/08C08L23/06C08L53/025C08L23/12C08F230/08
Inventor 耿建家张昊李宏杰薛刚李甜甜
Owner 威海联桥新材料科技股份有限公司
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