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Adsorption type thermosensitive cross-linking agent masterbatch and preparation method thereof

It is an adsorption type and adsorption heat technology, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc. It can solve the problems that the melt processing method is not suitable for preparing masterbatches, so as to reduce thermal degradation and contribution to VOC, prevent adhesion and The effect of uneven dispersion and avoiding agglomeration

Inactive Publication Date: 2015-07-01
HEFEI INNOVATION LIGHTWEIGHT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, A171 (vinyltrimethoxysilane) and A151 (vinyltriethoxysilane) are heat-sensitive crosslinking agents, which are not suitable for preparing masterbatches by melt processing

Method used

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  • Adsorption type thermosensitive cross-linking agent masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Put 100 grams of porous polyethylene in a stirring device;

[0029] (2) Spray 900 g of liquid vinyltrimethoxysilane (A171) into polyethylene, and stir at 300 rpm for 60 min at 25 °C to obtain an adsorption-type heat-sensitive crosslinking agent masterbatch.

Embodiment 2

[0031] (1) 500 grams of porous polyurethane is placed in a stirring device;

[0032] (2) Spray 500 g of liquid vinyltriethoxysilane (A151) into polyurethane, and stir at 20 rpm for 60 min at 100 °C to obtain an adsorption-type heat-sensitive crosslinking agent masterbatch.

Embodiment 3

[0034] (1) 300 grams of porous polypropylene is placed in a stirring device;

[0035] (2) Spray 700 g of liquid γ-aminopropyltriethoxysilane (KH550) into porous polypropylene, and stir at 100 rpm for 30 min at 100°C to obtain an adsorption-type heat-sensitive crosslinking agent master grain.

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Abstract

The invention discloses an adsorption type thermosensitive cross-linking agent masterbatch, which is prepared in a way that porous polymer particles adsorb a thermosensitive cross-linking agent, wherein the content of the porous polymer particles in percentage by mass is 10-50% and the balance is the thermosensitive cross-linking agent; the porous polymer particles can be at least one of capillaceous polyolefin porous foamed plastic with a porous structure, spongy or reticular microstructure or natural porous materials. Based on the capillary adsorption effect of micropores of the porous polymer particles, powder or the thermosensitive cross-linking agent is respectively subjected to corresponding treatment; the traditional masterbatch preparation process can be replaced without a complicated process or expensive equipment. The concentration of the thermosensitive cross-linking agent in the prepared masterbatch is controllable and can reach 90% at most. The masterbatch can be used directly once prepared and the uncontrollable factors during the storage process can be prevented. The preparation process and properties of the composite material can be improved as whole.

Description

technical field [0001] The invention belongs to the technical field of organic polymer materials, and in particular relates to an adsorption-type heat-sensitive crosslinking agent masterbatch and a preparation method thereof. technical background [0002] The crosslinking technology of polyethylene (PE) is one of the important means of PE modification. The crosslinked PE can significantly improve its creep performance, impact performance and mechanical properties at high temperature, and improve environmental stress cracking resistance and wear resistance. and endow the product with memory properties; cross-linking can also make PE basically not change its mechanical properties after adding a large amount of fillers (reinforcing agents, conductive agents, flame retardants). [0003] The cross-linking technology of polyethylene (PE) is currently mainly adding A171 (vinyltrimethoxysilane) and A151 (vinyltriethoxysilane) directly to the PE formulation system by adding a syrin...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L75/04C08L23/12C08L23/06C08L3/02C08L97/02C08K5/5425C08K5/5435C08K5/548C08K5/544C08K5/5419C08J3/22H01B3/44
Inventor 戴苍松陶慷郭洪武高振兴余莉花李玉玲
Owner HEFEI INNOVATION LIGHTWEIGHT MATERIALS
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