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Environmental protection type sealant for vehicle

A sealant, environmentally friendly technology, used in adhesive types, monocarboxylate copolymer adhesives, other chemical processes, etc., can solve problems such as waste of energy, pollution, poor water resistance, etc., to improve water resistance and The effect of own strength

Inactive Publication Date: 2005-08-17
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art, such as pollution, waste of energy, poor water resistance, etc., to provide a water-based environment-friendly vehicle seal with excellent comprehensive performance and high performance-price ratio. Glue to meet the growing market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Embodiment (by weight) (1) (2) (3) (4)

[0023] Acetyl styrene-acrylic soap-free copolymer emulsion 100 100 100 100

[0024] Ammonia appropriate amount / / appropriate amount

[0025] Sodium carbonate / appropriate amount / /

[0026] Sodium hydroxide / / appropriate amount /

[0027] 8% polyvinyl alcohol aqueous solution 8 2 / /

[0028] 3% aqueous solution of sodium carboxymethylcellulose / 5 6 20

[0029] 2% aqueous solution of hydroxyethyl cellulose / 8 18 10

[0030] 50% water soluble phenolic resin 25 15 10 5

[0031] 30% sodium polyacrylate aqueous solution 10 8 6 2

[0032] Titanium dioxide 3 5 8 5

[0033] Talc powder (325 mesh) 15 10 25 32

[0034] Heavy calcium carbonate (400 mesh) / 8 12 18

[0035] Light calcium carbonate (400 mesh) 15 18 16 13

[0036] Wollastonite powder (325 mesh) 17 20 18 32

[0037] Water (add appropriate amount depending on the viscosity, suitable for scraping).

[0038] Main performance indicators:

[0039] proj...

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PUM

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Abstract

An environment protection type water-base sealant for car is prepared from the high-elasticity non-soap copolymer emulsion without emulsifier, talc powder, light calcium carbonate, heavy calcium carbonate, powdered wollastonite, titanium oxide powder, rheological regulator, pH regulator, cross-linking agent and disperser. Its advantages are high resistance to water and self integrality, high thickness but low viscosity and better rheopexy.

Description

technical field [0001] The invention relates to an environment-friendly sealant for vehicles and belongs to the technical field of adhesives. Background technique [0002] The sealing performance of the automobile is directly related to the comfort and life of the vehicle. At present, the domestic automobile sealants mainly include rubber type and PVC plastisol type. The rubber type sealant can be cured at room temperature and has high elasticity and toughness. It contains organic solvents (most of which contain toluene and xylene) that are harmful to the human body, which continue to volatilize during use, causing serious environmental pollution; PVC sealants basically do not contain volatile organic solvents, and have good sealing performance. However, it must be baked at a high temperature (140-160°C) during curing, and its use is limited to a certain extent. [0003] Water-based automotive sealant is an environmentally friendly product made of acetate-styrene-acrylic co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J131/04C09K3/10
Inventor 张炳烛
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY