Reaction type elastic polymer coating and preparation method thereof

An elastic coating and polymer technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of unstable performance and poor compatibility of asphalt products, and achieve strong adhesion, good stability and durability, The effect of high reactivity

Inactive Publication Date: 2018-11-16
杰心(成都)环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of poor compatibility between asphalt and polyurethane prepolymer in the above-mentioned prior art, and unstable product performance caused by asphalt components and performance differences of different manufacturers, the present invention proposes a reactive polymer elastic coating and its Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A reactive polymer elastic coating, comprising component A and component B, the weight ratio of component A and component B is 1:1,

[0033] The component A includes the following raw materials in parts by weight: 30 parts of polyether 2000, 30 parts of asphalt prepolymer, 15 parts of plasticizer, 10 parts of compatibilizer, 10 parts of TDI, 6 parts of hydroxyl-terminated liquid rubber, MDI 2 parts, 2 parts of chain extender;

[0034] The B component includes the following raw materials in parts by weight: 50 parts of inorganic powder, 25 parts of plasticizer, 20 parts of asphalt prepolymer, 3 parts of curing agent A, 2 parts of catalyst, 0.3 parts of defoamer, dispersant 0.25 parts, 0.4 parts of wetting agent;

[0035] The asphalt prepolymer includes the following raw materials in parts by weight: 90 parts of CNOOC No. 100 asphalt, 20 parts of inorganic powder, 8 parts of naphthenic oil, 3 parts of 4-bromo-2-methylphenylisocyanate, MDI 0.5 parts, 1 part of curing age...

Embodiment 2

[0042] A kind of reactive polymer elastic coating, comprising A component and B component, the weight ratio of A component and B component is 1:2,

[0043] The component A includes the following raw materials in parts by weight: 50 parts of polyether 2000, 50 parts of asphalt prepolymer, 20 parts of plasticizer, 20 parts of compatibilizer, 15 parts of TDI, 10 parts of hydroxyl-terminated liquid rubber, MDI 7 parts, 5 parts of chain extender;

[0044] The B component includes the following raw materials in parts by weight: 60 parts of inorganic powder, 30 parts of plasticizer, 30 parts of asphalt prepolymer, 8 parts of curing agent A, 3 parts of catalyst, 1 part of defoamer, dispersant 1 part, 1 part of wetting agent;

[0045] The asphalt prepolymer includes the following raw materials in parts by weight: 110 parts of CNOOC No. 100 asphalt, 35 parts of inorganic powder, 15 parts of naphthenic oil, 5 parts of 4-bromo-2-methylphenylisocyanate, MDI 2 parts, 2 parts of curing age...

Embodiment 3

[0052] A kind of reactive polymer elastic coating, comprising A component and B component, the weight ratio of A component and B component is 1:1.5,

[0053] The component A includes the following raw materials in parts by weight: 30 parts of polyether 2000, 50 parts of asphalt prepolymer, 20 parts of plasticizer, 20 parts of compatibilizer, 15 parts of TDI, 10 parts of hydroxyl-terminated liquid rubber, MDI 7 parts, 5 parts of chain extender;

[0054] The B component includes the following raw materials in parts by weight: 55 parts of inorganic powder, 27 parts of plasticizer, 20 parts of asphalt prepolymer, 5 parts of curing agent A, 2.5 parts of catalyst, 0.6 parts of defoamer, dispersant 0.8 parts, 0.4 parts of wetting agent;

[0055] The asphalt prepolymer includes the following raw materials in parts by weight: 90 parts of CNOOC No. 100 asphalt, 35 parts of inorganic powder, 15 parts of naphthenic oil, 4 parts of 4-bromo-2-methylphenylisocyanate, MDI1 part, 2 parts of ...

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Abstract

The invention discloses a reaction type elastic polymer coating and a preparation method thereof and belongs to the field of building waterproofing materials. The reaction type elastic polymer coatingcomprises a component A and a component B in a weight ratio being 1:1-1:2, wherein the component A comprises raw materials in parts by weight as follows: 30-50 parts of polyether 2000, 30-50 parts ofan asphalt prepolymer, 15-20 parts of a plasticizer, 10-20 parts of a compatilizer, 10-15 parts of toluene diisocyanate, 5-10 parts of hydroxyl-terminated liquid rubber, 2-7 parts of methylene diphenyl diisocyanate and 1-5 parts of a chain extender; the component B comprises raw materials in parts by weight as follows: 50-60 parts of inorganic powder, 25-30 parts of the plasticizer, 10-30 parts of the asphalt prepolymer, 3-8 parts of a curing agent A, 2-3 parts of a catalyst, 0.1-1 part of a defoaming agent, 0.1-1 part of a dispersing agent and 0.1-1 part of a wetting agent. The reaction typeelastic polymer coating has the advantages of being good in durability, good in water resistance, good in fatigue durability, high in adhesive strength and the like.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a reactive polymer elastic coating and a preparation method thereof. Background technique [0002] At present, ordinary waterproof coatings on the market have poor durability and unstable performance. Therefore, the durability, fatigue resistance and aging resistance of waterproof coatings have become urgent problems to be solved. Polyurethane waterproof coatings produced by copolymerization of bitumen and polyurethane prepolymers Well solved this problem, but in the prior art when preparing waterproof coating, there are following problems: (1) but because the compatibility itself of asphalt and polyurethane prepolymer is extremely poor, if asphalt cannot be effectively modified , the reaction process is difficult to achieve stability; (2) due to the different production processes of different manufacturers, there are large differences in the composition and performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C08G18/66C08G18/48C08G18/64C08G18/32
CPCC08G18/3206C08G18/48C08G18/6476C08G18/6674C09D175/08
Inventor 李雷丁海涛金永峰刘勇刘亚妮胡蔚儒陈林樊军胡宁
Owner 杰心(成都)环境科技有限公司
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