Crosslinkable polyethylene co-mixed composition

A technology of crosslinked polyethylene and composition, applied in the field of crosslinkable polyethylene blend composition

Active Publication Date: 2014-06-18
NAT INST OF CLEAN AND LOW CARBON ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cross-linked material stil

Method used

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  • Crosslinkable polyethylene co-mixed composition
  • Crosslinkable polyethylene co-mixed composition
  • Crosslinkable polyethylene co-mixed composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7 and comparative Embodiment 1-5

[0052] The crosslinkable polyethylene compositions of Examples 1-7 and Comparative Examples 1-5 were prepared by extruding with a twin-screw extruder at 150° C. and 80 rpm, and then cut and pelletized. The specific models and contents of various components are shown in Table 1 and Table 2, respectively.

[0053] Table 1

[0054]

[0055]

[0056] Table 2

[0057]

[0058]

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Abstract

The invention discloses a crosslinkable polyethylene co-mixed composition, a preparation method thereof and a product prepared therefrom. Specifically, the invention relates to the crosslinkable polyethylene composition having improved adhesive power to metals, the preparation method thereof and the product prepared therefrom. The crosslinkable polyethylene composition comprises the components: (a) 100 parts by weight of polyethylene resin; (b) 0.5-12 parts by weight of polyolefin grafted with an unsaturated carboxylic acid, anhydride and/or an ester derivative thereof; (c) 0.2-6 parts by weight of a peroxide crosslinking agent; and (d) optionally, 0.01-10 parts by weight of an auxiliary agent. The crosslinkable polyethylene composition after crosslinking has excellent adhesive power to various metals (such as aluminum, copper and steel) and other polar materials.

Description

technical field [0001] The present invention relates to a cross-linkable polyethylene blend composition, in particular, to a cross-linkable polyethylene blend composition with improved toughness and metal adhesion, a preparation method thereof and articles prepared therefrom . Background technique [0002] Crosslinkable polyethylene compositions can have high performance, including excellent chemical resistance, high heat distortion temperature, good impact strength and low coefficient of thermal expansion. However, it shows very poor adhesion to polar substrates such as metals because it is a low polar polymer. There is therefore a need for crosslinkable polyethylene resins having improved adhesion to various metals. [0003] In order to improve the adhesion of conventional polyolefins to polar surfaces, it is necessary to modify their surface. Commonly used pretreatment techniques include: chemical etching (such as chromic acid etching), surface coating adhesives, micro...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K5/14C08J3/24
CPCB29C48/92B29C2948/92704C08L23/06C08L2205/03C08L2207/062C08L2312/00C08L23/0815C08L51/06C08K5/14
Inventor 陈学连梁文斌牛艳华赖世燿
Owner NAT INST OF CLEAN AND LOW CARBON ENERGY
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