Polyurethane elastomer composition for floor coating and preparation method of polyurethane elastomer composition

A polyurethane elastomer and floor coating technology, which is applied in the field of polyurethane synthesis, can solve the problems of epoxy floor coatings such as brittleness and cracking, poor UV resistance, and poor weather resistance, and achieve scientific and reasonable preparation methods, high transparency, Good anti-yellowing effect

Inactive Publication Date: 2018-06-19
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Floor coatings include epoxy and polyurethane. Although epoxy floor coatings have the characteristics of high hardness, good strength, wear resistance and chemical corrosion resistance, epoxy floor coatings are brittle and easy to crack, and have poor weather resistance. Can be used in indoor places with weak ultraviolet rays
Polyurethane coatings have excellent wear resistance, chemical resistance, oil resistance, good impact resistance and ductility, but aromatic floor coatings are easily affected by the humidity of the environment during construction, and are sensitive to water. Easy to foam; Secondly, aromatic floor coatings have poor UV resistance and are prone to yellowing

Method used

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  • Polyurethane elastomer composition for floor coating and preparation method of polyurethane elastomer composition
  • Polyurethane elastomer composition for floor coating and preparation method of polyurethane elastomer composition
  • Polyurethane elastomer composition for floor coating and preparation method of polyurethane elastomer composition

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Experimental program
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Effect test

Embodiment 1

[0029] Prepolymer components: polyether polyol DV125 20.9%, IPDI 79.1%, react at 90°C for 7 hours, remove air bubbles under a vacuum of -0.095MPa, and obtain a prepolymer with an isocyanate content of 22.4%.

[0030] The prepolymer component and diethanolamine are mixed at a ratio of 100:16.5 at room temperature. After stirring evenly, spray it on the ground, react and solidify for 16 hours at room temperature, and then form it.

Embodiment 2

[0032] Prepolymer components: polyether polyol SA380 9.6%, polyether polyol DL1000 9.6%, H 12 MDI80.8%, react at 90°C for 7 hours, remove air bubbles under vacuum degree -0.095MPa, and obtain a prepolymer with an isocyanate content of 22.4%.

[0033] The prepolymer component and diethanolamine are mixed at a ratio of 100:28 at room temperature, stirred evenly, sprayed on the ground, reacted and cured for 15 hours at room temperature, and then formed.

Embodiment 3

[0035] Prepolymer component: polyether polyol SA380 15.9%, H 12 MDI84.1%, react at 90°C for 7 hours, remove air bubbles under vacuum degree -0.095MPa, and obtain a prepolymer with an isocyanate content of 22.4%.

[0036] The prepolymer component and diethanolamine are mixed at a ratio of 100:26.5 at room temperature, stirred evenly, sprayed on the ground, reacted and cured for 15 hours at room temperature, and then formed.

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Abstract

The invention relates to a polyurethane elastomer composition for floor coating and a preparation method of the polyurethane elastomer composition, which belongs to the technical field of polyurethanesynthesis. The polyurethane elastomer composition is prepared from the following substances by weight percent: 10 to 25 percent of polyether polyol, 50 to 85 percent of isocyanate, and 5 to 35 percent of chain extender, wherein the polyether polyol is the polyether polyol with a functionality of 2 or 3 and a number-average molecular weight of 300 to 1000. The prepared polyurethane elastomer composition is high in hardness, good in yellowing resistant effect, good in water resistance and excellent in low temperature resistance. The preparation method provided by the invention comprises two steps and is scientific and reasonable, easy in implementation, good in mobility when in production operation, mild in reaction and free from producing bubbles.

Description

technical field [0001] The invention relates to a polyurethane elastomer composition for floor coatings and a preparation method thereof, belonging to the technical field of polyurethane synthesis. Background technique [0002] Polyurethane is a high-strength, tear-resistant, wear-resistant polymer material with properties between rubber and plastic. It is characterized by a wide range of hardness adjustment, which has both the elasticity of rubber and the The hardness of the plastic. In recent years, it has been widely used in the fields of manufacturing plastic products, wear-resistant synthetic rubber products, synthetic fibers, rigid and flexible foam plastic products, adhesives and coatings. At the same time, it is also used in various types of wood, chemical equipment, telecommunications equipment and instruments. And surface finishing of various means of transportation. Floor coatings include epoxy and polyurethane. Although epoxy floor coatings have the characteris...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/75C08G18/10C08G18/12C08G18/32C09D175/08
CPCC08G18/10C08G18/12C08G18/48C08G18/4804C08G18/755C08G18/758C09D175/08C08G18/3275C08G18/3281
Inventor 刘兆阳李涛王加良曹士强
Owner SHANDONG INOV POLYURETHANE
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