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Curing agent for polyurethane coating

A polyurethane coating and curing agent technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as unsatisfactory effects and expensive prices

Inactive Publication Date: 2018-11-09
ANHUI SANCAI IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to current technical problems, the price of this curing agent is not cheap, and the effect is not satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A curing agent for polyurethane coatings comprises the following raw materials in parts by weight: 0.5 part of alkyd resin, 0.2 part of phthalic anhydride, 5 parts of nano-modified phosphate slag, 1 part of modified ethylene bis fatty acid amide, and 2 parts of membrane aid, 1 part of isophorone diisocyanate, 2 parts of E-20 epoxy resin, 2 parts of propylene glycol methyl ether acetate, 8 parts of isocyanate trimer curing agent, 3 parts of nano calcium carbonate, nitrocellulose 2 parts, 1 part of isocyanurate, 3 parts of β-nucleating agent and 4 parts of castor oil;

[0018] Above-mentioned a kind of curing agent for polyurethane coating, the preparation method of described curing agent is:

[0019] S1. First, mix alkyd resin, isophorone diisocyanate, E-20 epoxy resin, propylene glycol methyl ether acetate and isocyanurate, and prepare liquid A for use after extraction and bleaching;

[0020] S2. then phthalic anhydride, modified ethylene bis fatty acid amide, nano-cal...

Embodiment 2

[0024] The above-mentioned curing agent for polyurethane coatings has the following raw materials in parts by weight: 1 part of alkyd resin, 0.6 part of phthalic anhydride, 8 parts of nano-modified phosphate slag, and 2 parts of modified ethylene bis fatty acid amide , 6 parts of film-forming aids, 4 parts of isophorone diisocyanate, 7 parts of E-20 epoxy resin, 5 parts of propylene glycol methyl ether acetate, 12 parts of isocyanate trimer curing agent, 6 parts of nano calcium carbonate, nitration 7 parts of cellulose, 6 parts of isocyanurate, 7 parts of beta-nucleating agent and 9 parts of castor oil;

[0025] Above-mentioned a kind of curing agent for polyurethane coating, the preparation method of described curing agent is:

[0026] S1. First, mix alkyd resin, isophorone diisocyanate, E-20 epoxy resin, propylene glycol methyl ether acetate and isocyanurate, and prepare liquid A for use after extraction and bleaching;

[0027] S2. then phthalic anhydride, modified ethylene...

Embodiment 3

[0031] The above-mentioned curing agent for polyurethane coatings has the following raw materials in parts by weight: 0.75 parts of alkyd resin, 0.4 parts of phthalic anhydride, 6.5 parts of nano-modified phosphate slag, and 1.5 parts of modified ethylene bis fatty acid amide , 4 parts of film-forming aids, 2.5 parts of isophorone diisocyanate, 4.5 parts of E-20 epoxy resin, 3.5 parts of propylene glycol methyl ether acetate, 10 parts of isocyanate trimer curing agent, 4.5 parts of nano calcium carbonate, nitration 4.5 parts of cellulose, 3.5 parts of isocyanurate, 5 parts of beta-nucleating agent and 6.5 parts of castor oil;

[0032] Above-mentioned a kind of curing agent for polyurethane coating, the preparation method of described curing agent is:

[0033] S1. First, mix alkyd resin, isophorone diisocyanate, E-20 epoxy resin, propylene glycol methyl ether acetate and isocyanurate, and prepare liquid A for use after extraction and bleaching;

[0034] S2. then phthalic anhyd...

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PUM

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Abstract

The invention discloses a curing agent for polyurethane coating. The curing agent is prepared from the following raw materials in parts by weight: 0.5 to 1 part of alkyd resin, 0.2 to 0.6 part of phthalic anhydride, 5 to 8 parts of nano modified phosphorus slag, 1 to 2 parts of modified ethylene bis-fatty acid amide, 2 to 6 parts of a film forming auxiliary agent, 1 to 4 parts of isophorone diisocyanate, 2 to 7 parts of E-20 epoxy resin, 2 to 5 parts of propylene glycol methyl ether acetate, 8 to 12 parts of an isocyanate trimer curing agent, 3 to 6 parts of nano calcium carbonate, 2 to 7 parts of cellulose nitrate, 1 to 6 parts of isocyanurate, 3 to 7 parts of a beta-nucleating agent and 4 to 9 parts of castor oil. The efficient curing agent provided by the invention has the advantages that the efficient curing agent has a hardening effect on a common curing agent, and the nano modified phosphorus slag strengthens the hardening effect and the like.

Description

technical field [0001] The invention relates to the technical field of curing agents for coatings, in particular to a curing agent for polyurethane coatings. Background technique [0002] Building roads is a huge project, and its significance is also huge, which can promote the economic development of one side. But there will be big and small problems in the process of road construction. And one of them is that you will encounter some places with soft soil layers. In order to strengthen these soft soil layers, we often add curing agent to solidify the soil, making it suitable for building roads on it. However, due to the current technical problems, the price of this curing agent is not cheap, and the effect is not satisfactory. Contents of the invention [0003] The purpose of the present invention is in order to solve the shortcoming that exists in the prior art, and proposes a kind of curing agent for polyurethane coating. [0004] In order to achieve the above objec...

Claims

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Application Information

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IPC IPC(8): C09D7/65C09D7/63C09D7/62C09D7/61C09D175/04
CPCC09D7/65C08K2003/265C08K2201/011C09D7/61C09D7/62C09D7/63C09D175/04C08L67/08C08L63/00C08L1/18C08L91/00C08K13/08C08K11/005C08K5/20C08K3/26
Inventor 许逸贤许绪留
Owner ANHUI SANCAI IND & TRADE