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Polyurethane elastomer for fluorocarbon paint and preparation method thereof

A polyurethane elastomer and fluorocarbon paint technology, which is applied in the field of polyurethane elastomer, can solve the problems of poor aging resistance, poor gloss and color retention, and difficulty in controlling the construction ratio of fluorocarbon paint coatings.

Active Publication Date: 2021-04-09
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a polyurethane elastomer for fluorocarbon paint, which solves the problems of poor aging resistance, poor gloss and color retention and difficult control of construction ratio of fluorocarbon paint, and realizes The safety and aesthetics of fluorocarbon paint reduces the cost of cleaning and maintenance, and greatly expands the application field of fluorocarbon paint; the invention also provides its preparation method

Method used

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  • Polyurethane elastomer for fluorocarbon paint and preparation method thereof
  • Polyurethane elastomer for fluorocarbon paint and preparation method thereof
  • Polyurethane elastomer for fluorocarbon paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Raw materials and their mass percentages are as follows:

[0034] A component:

[0035] Fluorocarbon resin CF-803 99.5%;

[0036] Bismuth catalyst CX-18 0.5%;

[0037] B component:

[0038]

[0039] (1) Mix fluorocarbon resin CF-803 and bismuth catalyst CX-18 evenly to obtain component A;

[0040] (2) Mix polytetrahydrofuran polyol PTMG2000, polyether polyol MN-3050, and plasticizer DOTP, heat up to 100°C, vacuum dehydrate to moisture content <0.05%; cool down to 60°C, add IPDI, antioxidant in turn 1076, react at 90°C for 5 hours, vacuum defoaming, and obtain a prepolymer with an isocyanate content of 4.3%, which is the B component;

[0041] (3) Mix component A and component B according to the mass ratio A:B=100:100 to obtain polyurethane elastomer for fluorocarbon paint.

Embodiment 2

[0043] Raw materials and their mass percentages are as follows:

[0044] A component:

[0045] Fluorocarbon resin CF-803 99.7%;

[0046] Tin catalyst T-9 0.3%;

[0047] B component:

[0048]

[0049] (1) Mix fluorocarbon resin CF-803 and tin catalyst T-9 evenly to obtain component A;

[0050] (2) Mix polytetrahydrofuran polyol PTMG2000, polyether polyol DL-2000, and plasticizer DOTP, heat up to 120°C, vacuum dehydrate to moisture content <0.05%; cool down to 40°C, add IPDI, antioxidant in turn 1076, reacted at 80°C for 4 hours, degassed in vacuum to obtain a prepolymer with an isocyanate content of 5.0%, which is the B component;

[0051] (3) Mix component A and component B according to the mass ratio A:B=120:100 to obtain polyurethane elastomer for fluorocarbon paint.

Embodiment 3

[0053] Raw materials and their mass percentages are as follows:

[0054] A component:

[0055] Fluorocarbon resin CF-803 99.7%;

[0056] Tin catalyst T-9 0.3%;

[0057] B component:

[0058]

[0059] (1) Mix fluorocarbon resin CF-803 and tin catalyst T-9 evenly to obtain component A;

[0060] (2) Mix polytetrahydrofuran polyol PTMG2000 and plasticizer DOP, heat up to 100°C, vacuum dehydrate to moisture content 12 MDI and antioxidant PDP were reacted at 90°C for 4 hours, and vacuum degassed to obtain a prepolymer with an isocyanate content of 6.5%, which was component B;

[0061] (3) Mix component A and component B according to the mass ratio A:B=150:100 to obtain polyurethane elastomer for fluorocarbon paint.

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Abstract

The invention relates to the technical field of polyurethane elastomers, in particular to a polyurethane elastomer for fluorocarbon paint and a preparation method thereof. The polyurethane elastomer for fluorocarbon paint includes A component and B component; A component includes 99.5-99.8% of fluorocarbon resin, 0.2-0.5% of catalyst; B component includes 52.5-65.3% of polyether polyol , 17.2-35.5% of diisocyanate, 0.2-0.3% of antioxidant, 0-30% of plasticizer; the mixing mass ratio of A component and B component is 100-190:100. The polyurethane elastomer for fluorocarbon paints of the present invention solves the problems of poor aging resistance, poor gloss and color retention, and difficulty in controlling the construction ratio of fluorocarbon paint coatings, realizes the safety and aesthetics of fluorocarbon paints, and reduces the cost of cleaning and maintenance The cost greatly expands the application field of fluorocarbon paint; the invention also provides its preparation method.

Description

technical field [0001] The invention relates to the technical field of polyurethane elastomers, in particular to a polyurethane elastomer for fluorocarbon paint and a preparation method thereof. Background technique [0002] Fluorocarbon resin is obtained by homopolymerization or copolymerization of fluoroolefin as the basic monomer, or copolymerization with other monomers based on this, and self-polymerization or copolymerization of monomers containing fluorocarbon bonds in the side chain. A type of resin with multiple C-F chemical bonds. Fluorocarbon paint is a new class of paint based on this and also includes other resin modifications. As a high-tech functional coating, the development of fluorocarbon coatings has gone through three development stages: hot-melt type, room temperature cross-linked curing type and water-soluble. [0003] The domestic fluorocarbon paint industry started late, but developed rapidly. With the advancement of fluorocarbon paint technology and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/10C08G18/48C08G18/62C09D127/18C09D175/04C09D175/08C09D5/16
CPCC08G18/4063C08G18/4804C08G18/4854C08G18/6279C09D5/1662C09D5/1668C09D127/18C09D175/04C09D175/08
Inventor 王维龙宋书征王刚罗国建
Owner SHANDONG INOV POLYURETHANE
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