Shrink-proof polyurethane sealant

A technology of polyurethane sealant and polyurethane resin, which is applied in the direction of non-polymer adhesive additives, adhesive additives, and other chemical processes, which can solve problems such as large internal stress, product surface damage, and accumulation of dirt, and achieve scratch resistance Good wear resistance, small internal and external tension, and stable quality

Inactive Publication Date: 2015-02-04
SUZHOU BAII ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane resin is widely used as a main sealing material raw material. However, due to the problem of large internal stress in the production and processing of polyurethane itself, the internal and external quality of the product cannot be guaranteed

Method used

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Examples

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Example Embodiment

[0008] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.

[0009] The present invention is a shrink-proof polyurethane sealant, including polyurethane resin, leveling agent, crosslinking agent, lubricant, surface control agent, defoaming agent and coupling agent, and the leveling agent is modified by polyether Silicone oil, the crosslinking agent is hydroxyethyl acrylate, the lubricant is butyl stearate, the surface control agent is polyethylene wax, the antifoaming agent is phenylglycol oleate, and the coupling The agent is vinyl triethoxy silane, and the weight percentages of the components of the shrink-proof polyurethane sealant are respectively: the polyurethane resin accounts for 88.7%-94.2%, and the polyether modified silicone oi...

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PUM

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Abstract

The invention discloses a shrink-proof polyurethane sealant which comprises polyurethane resin, a flatting agent, a cross-linking agent, a lubricating agent, a surface control agent, a defoaming agent and a coupling agent, wherein the flatting agent is polyether modified silicone oil, the cross-linking agent is hydroxyethyl acrylate, the lubricating agent is butyl stearate, the surface control agent is polyethylene wax, the defoaming agent is phenethyl alcohol oleate, and the coupling agent is vinyl triethoxy silane. The shrink-proof polyurethane sealant is prepared from polyurethane resin and six additives including the flatting agent, the cross-linking agent, the lubricating agent, the surface control agent, the defoaming agent and the coupling agent, and the prepared product is small in internal and external tensile force, shrink-proof, stable in quality, fewer in bubbles, good in resistance to soiling and good in scratch resistance and wear resistance.

Description

technical field [0001] The invention relates to a sealing material, in particular to a shrink-proof polyurethane sealant. Background technique [0002] The sealing material refers to the material that can withstand the displacement of the joint to achieve the purpose of airtightness and watertightness and is embedded in the joint of the building, called the sealing material. Seal materials include metallic materials (aluminum, lead, indium, stainless steel, etc.), non-metallic materials (rubber, plastic, ceramics, graphite, etc.), composite materials (such as rubber-asbestos board, airgel felt-polyurethane), but The most used is rubber-like elastomer material. Polyurethane resin is widely used as a main sealing material raw material. However, due to the problem of large internal stress in the production and processing of polyurethane itself, the internal and external quality of the product cannot be guaranteed, and due to the impact of foaming in the production process, it ...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J11/08C09J11/06C09K3/10
Inventor 方俊
Owner SUZHOU BAII ELECTRONICS TECH
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