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a waterproof coating

A technology of waterproof coatings and inorganic fillers, applied in the direction of anti-corrosion coatings, etc., can solve the problems of human injury, environmental pollution PM2.5 particles, concrete detachment, etc., and achieve the effects of good low-temperature performance, long storage time, and strong absorption capacity

Active Publication Date: 2017-09-19
河北宝源工程橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the main components of the waterproof coating are liquid rubber and petroleum asphalt, a large amount of asphalt smoke will be discharged during the production process, and will be volatilized with the smoke during high-temperature treatment, causing a certain degree of damage to the human body; As a waterproof material, if the coating is soaked in water for a long time, the harmful substances in the asphalt --- heavy metal salts will migrate out and dissolve in water, causing groundwater pollution; The construction requirements in the north; third, the bonding performance between the coating and concrete is poor, and it is very easy to separate from the concrete, resulting in waterproof failure
The invention patent application with the Chinese patent application number 201410162779.7 discloses a non-asphalt-based non-curing waterproof coating. However, the waterproof coating is non-curable, so its bonding effect is difficult to meet the requirements; secondly, the coating mainly uses rubber compound as raw material , so in the production process, it will also produce Dario's PM2.5 particles that cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of component A: add 200 parts by weight of elastomer polyether polyol to the reactor, heat to 100°C and vacuum to 0.08MPa for dehydration for 1 hour, then add 100 parts by weight of isocyanate to control the temperature at 80°C Undergo polymerization reaction to form a colorless and transparent liquid to obtain component A;

[0027] Preparation of component B: Add 165 parts by weight of high resilience polyether polyol, 165 parts by weight of plasticizer, 50 parts by weight of chain extender, and 195 parts by weight of inorganic filler into the second reactor and heat to 100°C and vacuum to 0.08MPa for dehydration for 1 hour, 1.5 parts by weight of defoamer and 1.2 parts by weight of inorganic tin catalyst are added and stirred to form component B.

Embodiment 2

[0029] Preparation of component A: Add 180 parts by weight of elastomer polyether polyol into the reactor, heat to 105°C and vacuum to 0.06MPa for dehydration for 1 hour, then add 100 parts by weight of isocyanate to control the temperature at 80°C Undergo polymerization reaction to form a colorless and transparent liquid to obtain component A;

[0030] Preparation of component B: Add 160 parts by weight of high resilience polyether polyol, 180 parts by weight of plasticizer, 50 parts by weight of chain extender, and 200 parts by weight of inorganic filler into the second reactor and heat to 105° C. and vacuum to 0.06 MPa for dehydration for 1 hour, 1.2 parts by weight of defoamer and 1.6 parts by weight of inorganic tin catalyst are added and stirred to form component B.

Embodiment 3

[0032] Preparation of component A: Add 190 parts by weight of elastomer polyether polyol into the reactor, heat to 110°C and vacuum to 0.07MPa for dehydration for 1 hour, then add 100 parts by weight of isocyanate to control the temperature at 80°C Undergo polymerization reaction to form a colorless and transparent liquid to obtain component A;

[0033] Preparation of component B: add 150 parts by weight of high resilience polyether polyol, 140 parts by weight of plasticizer, 45 parts by weight of chain extender, and 185 parts by weight of inorganic filler into the second reactor and heat to 110°C and vacuum to 0.07MPa for dehydration for 1 hour, 1.6 parts by weight of defoamer and 1.7 parts by weight of inorganic tin catalyst are added and stirred to form component B.

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Abstract

The invention belongs to the technical field of waterproof materials and particularly discloses waterproof paint and a production method thereof. The production method includes: heating and dewatering polyether polyol, adding isocyanate for dissolution, adding plasticizer and chain extender for dissolving, allowing cooling, adding inorganic filler for mixing and dissolution, adding inorganic pigment for dissolution, and allowing cooling to 70 DEG C to obtain the waterproof paint. The waterproof paint solidifies fast after two-component mixing, is available for both scrape-coating and spray coating, and is stable in performance and convenient and simple to manually operate after construction.

Description

Technical field [0001] The invention belongs to the technical field of materials for building waterproofing, and relates to a waterproof coating used in construction joints and connection joints formed by concrete engineering bridge decks or between concrete. Background technique [0002] At present, the coatings used on concrete engineering bridge decks include asphalt and non-asphalt. For example, the Chinese patent application No. 201410162777.8 discloses a waterproof material made of liquid rubber. The components of the coating include liquid rubber, petroleum asphalt, organic solvent, mixed mineral powder, liquid resin, reinforcing agent, and It is composed of oxidant, organic active agent and sodium silicate material. When preparing, heat the organic solvent to heat up and dehydrate, add liquid rubber and antioxidants to heat and dissolve; cool down and then add liquid resin, petroleum pitch, enhancer and organic active agent to dissolve, and finally add mixed mineral powd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D5/08
CPCC09D5/08C09D7/61C09D7/63C09D175/08C08L71/00
Inventor 付强
Owner 河北宝源工程橡塑有限公司