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A kind of one-component polyurethane coating and preparation method thereof

A polyurethane coating, a single-component technology, applied in polyurea/polyurethane coatings, wax coatings, coatings, etc., can solve the problems of easy foaming and slow curing speed, achieve fast curing speed, improve compactness, and components High dispersion effect

Active Publication Date: 2018-03-27
GUANGZHOU JOYKO POLYURETHANES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a kind of one-component polyurethane coating and preparation method thereof, to improve the existing one-component polyurethane coating slow curing speed, the problem of easy foaming

Method used

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  • A kind of one-component polyurethane coating and preparation method thereof

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Effect test

Embodiment 1

[0015] One-component polyurethane coatings are calculated in parts by weight, and the components are as follows: 15 parts of polyurethane resin, 20 parts of chlorinated paraffin, 10 parts of diphenylmethane diisocyanate, 25 parts of acrylic resin, 15 parts of heavy calcium, and 15 parts of light calcium , 2 parts of defoaming agent, 20 parts of polyether polyol, 5 parts of nano-titanium dioxide, 1 part of plasticizer, 1 part of flame retardant and 0.5 part of catalyst, polyether polyol is dihydroxypolyoxypropylene ether and flame retardant Polyether polyol FR-600 is a mixture with a mass ratio of 3:1.

[0016] Present embodiment also provides a kind of method for preparing above-mentioned one-component polyurethane coating, comprises the following steps:

[0017] a. Heat up the reaction kettle to 80°C, then add polyurethane resin, chlorinated paraffin, diphenylmethane diisocyanate, acrylic resin and polyether polyol, and stir at a speed of 1000r / min while adding materials;

...

Embodiment 2

[0021] One-component polyurethane coatings are calculated in parts by weight, and the components are as follows: 40 parts of polyurethane resin, 35 parts of chlorinated paraffin, 15 parts of diphenylmethane diisocyanate, 35 parts of acrylic resin, 22 parts of heavy calcium, and 20 parts of light calcium , 5 parts of defoamer, 30 parts of polyether polyol, 10 parts of nano titanium dioxide, 5 parts of plasticizer, 3 parts of flame retardant and 2 parts of catalyst, polyether polyol is dihydroxypolyoxypropylene ether and flame retardant Polyether polyol FR-600 is a mixture with a mass ratio of 3:1.

[0022] Present embodiment also provides a kind of method for preparing above-mentioned one-component polyurethane coating, comprises the following steps:

[0023] a. Heat up the reaction kettle to 100°C, then add polyurethane resin, chlorinated paraffin, diphenylmethane diisocyanate, acrylic resin and polyether polyol, and stir at a speed of 1500r / min while adding materials;

[002...

Embodiment 3

[0027] One-component polyurethane coatings are calculated in parts by weight, and the components are composed as follows: 20 parts of polyurethane resin, 28 parts of chlorinated paraffin, 12 parts of diphenylmethane diisocyanate, 30 parts of acrylic resin, 18 parts of heavy calcium, and 17 parts of light calcium , 3 parts of defoaming agent, 25 parts of polyether polyol, 7 parts of nano titanium dioxide, 3 parts of plasticizer, 1.5 parts of flame retardant and 1.3 parts of catalyst, polyether polyol is dihydroxypolyoxypropylene ether and flame retardant Polyether polyol FR-600 is a mixture with a mass ratio of 3:1.

[0028] Present embodiment also provides a kind of method for preparing above-mentioned one-component polyurethane coating, comprises the following steps:

[0029] a. Heat up the reaction kettle to 90°C, then add polyurethane resin, chlorinated paraffin, diphenylmethane diisocyanate, acrylic resin and polyether polyol, and stir at a speed of 1200r / min while adding ...

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Abstract

The invention provides a single-component polyurethane coating and a preparation method thereof and relates to the field of coatings. The single-component polyurethane coating comprises raw materials in parts by weight as follows: 15-40 parts of polyurethane resin, 20-35 parts of chlorinated paraffin, 10-15 parts of methylene diphenyl diisocyanate, 25-35 parts of acrylic resin, 15-22 parts of ground calcium carbonate, 15-20 parts of light calcium carbonate, 2-5 parts of an antifoaming agent, 20-30 parts of polyether polyol, 5-10 parts of nano titanium dioxide, 1-5 parts of a plasticizer, 1-3 parts of a flame retardant and 0.5-2 parts of a catalyst, wherein polyether polyol is mixture of dihydroxy polyoxypropylene ether and flame retardant type polyether polyol FR-600 in a mass ratio being 3:1. The single-component polyurethane coating has high curing speed and high practicability.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a one-component polyurethane coating and a preparation method thereof. Background technique [0002] Due to its excellent product performance and processing diversity, polyurethane coatings have become one of the fastest-growing varieties in the global coatings industry in the past ten years. The average annual growth rate of polyurethane in foreign countries has reached twice the average growth rate of the coatings industry. With its superior physical and chemical properties, polyurethane coatings have been widely recognized and applied in the industry. [0003] Among polyurethane coatings, one-component polyurethane coatings are easy to construct, especially for users who use a small amount of coatings for home decoration, do not need to consider the problem of weighing, and the unused coatings can be reused in the future. Much favored. In addition, the impact resistance and abrasion ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D175/04C09D133/00C09D191/06C09D7/61
CPCC08K2201/011C08K2201/014C08L2201/02C08L2205/02C08L2205/035C09D7/61C09D175/08C08L75/04C08L33/00C08L91/06C08K2003/265C08K2003/2241
Inventor 陈瑞言
Owner GUANGZHOU JOYKO POLYURETHANES CO LTD