A kind of microfoam flame-retardant polyurethane material and preparation method thereof

A polyurethane material and micro-foaming technology, which is applied in the field of polyurethane materials, can solve the problems of poor aging resistance, general wear resistance, and poor hydrolysis resistance, and achieve excellent aging resistance, good anti-slip performance, and good wear resistance Effect

Active Publication Date: 2020-12-22
GUANGDONG BOSHENG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing polyurethane runway is mainly paved with a single-component polyurethane adhesive and a large amount of black rubber particles. The construction is simple, the site has good air permeability, excellent extension recovery, cold resistance, oil resistance, and bending resistance, but it has poor aging resistance. , poor hydrolysis resistance, general wear resistance, low mechanical properties, short service life, heavy odor, poor flame retardant performance, etc., which also have certain pollution to the environment

Method used

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  • A kind of microfoam flame-retardant polyurethane material and preparation method thereof
  • A kind of microfoam flame-retardant polyurethane material and preparation method thereof
  • A kind of microfoam flame-retardant polyurethane material and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0052] The preparation method of the above-mentioned microfoaming flame-retardant polyurethane material comprises the following steps:

[0053] 1) Add polycarbonate diol and filler to the reaction kettle, vacuumize, and stir at 100-120°C for 1-2 hours;

[0054] 2) Cool down to 40-50°C, add isocyanate, react at 70-90°C for 1-2 hours, then add pigment, halogen-free flame retardant, flame retardant synergist, chemical foaming agent, physical foaming agent, antioxidant , an ultraviolet absorber and an antifungal and antibacterial agent, and stirred at 40-50° C. for 20-30 minutes to obtain a micro-foaming flame-retardant polyurethane material.

Embodiment 1

[0057] A kind of microfoam flame-retardant polyurethane material, its raw material composition is as shown in the following table:

[0058] Table 1 The raw material composition table of a kind of microfoam flame-retardant polyurethane material

[0059]

[0060] The preparation method of the above-mentioned microfoaming flame-retardant polyurethane material comprises the following steps:

[0061] 1) Add polycarbonate diol and talcum powder to the reaction kettle, vacuumize, and stir at 120°C for 1.5h;

[0062] 2) Cool down to 40°C, add isocyanate, react at 70°C for 2 hours, then add pigment, melamine, hypophosphite, antimony trioxide, N,N'-dimethyl-N,N'-dinitroso p-phenylene Diformamide, n-pentane, antioxidant 1010, 2-hydroxy-4-methylbenzophenone, and pyrimidinesulfur copper zinc were stirred at 45° C. for 30 minutes to obtain a microfoaming flame-retardant polyurethane material.

Embodiment 2

[0064] A kind of microfoam flame-retardant polyurethane material, its raw material composition is as shown in the following table:

[0065] Table 2 The raw material composition table of a kind of microfoam flame-retardant polyurethane material

[0066]

[0067]

[0068] The preparation method of the above-mentioned microfoaming flame-retardant polyurethane material comprises the following steps:

[0069] 1) Add polycarbonate diol and montmorillonite to the reaction kettle, vacuumize, and stir at 120°C for 2 hours;

[0070] 2) Cool down to 40°C, add isocyanate, react at 80°C for 2 hours, then add pigment, dicyandiamide, hypophosphite, aluminum hydroxide, p-benzenesulfonyl hydrazide, n-hexane, antioxidant 1010, 2-hydroxyl-4 - methyl benzophenone and zinc oxide, stirred at 40° C. for 30 minutes to obtain a microfoaming flame-retardant polyurethane material.

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Abstract

The invention discloses a slightly foaming flame-retardant polyurethane material, and a preparation method thereof. The slightly foaming flame-retardant polyurethane material is prepared from isocyanate, a polycarbonate dihydric alcohol, a filling material, a pigment, a halogen free fire retardant, a flame retardant synergistic agent, a chemical foaming agent, a physical foaming agent, an anti-oxidant, an ultraviolet ray absorber, and a mildew-resistant antiseptic. The preparation method comprises following steps: 1, the polycarbonate dihydric alcohol and the filling material are subjected topre-mixing; 2, isocyanate is added, full reaction is carried out, the pigment, the halogen free fire retardant, the flame retardant synergistic agent, the chemical foaming agent, the physical foamingagent, the anti-oxidant, the ultraviolet ray absorber, and the mildew-resistant antiseptic are added for full reaction. The internal part of the slightly foaming flame-retardant polyurethane materialpossesses uniform micropores; the elasticity is high; the flame resistance, the aging resistance, the mechanical properties, the wear resistance, and the slide resistance are excellent; no smell is observed; the preparation method is safe, is friendly to the environment, is simple, and is convenient for large-scale industrialized production.

Description

technical field [0001] The invention relates to a microfoaming flame-retardant polyurethane material and a preparation method thereof, belonging to the technical field of polyurethane materials. Background technique [0002] Polyurethane is generally obtained by the reaction of isocyanate and polyether polyol, and is widely used in the plastic track industry. The existing polyurethane runway is mainly paved with a single-component polyurethane adhesive and a large amount of black rubber particles. The construction is simple, the site has good air permeability, excellent extension recovery, cold resistance, oil resistance, and bending resistance, but it has poor aging resistance. , poor hydrolysis resistance, general wear resistance, low mechanical properties, short service life, heavy odor, poor flame retardancy and other problems, it also has certain pollution to the environment. With the improvement of people's living standards, people pay more and more attention to their...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/44C08J9/14C08J9/10C08K13/02C08K5/3492C08K5/5313C08K5/315
CPCC08G18/44C08J9/0028C08J9/0038C08J9/0066C08J9/0095C08J9/104C08J9/107C08J9/141C08J2203/04C08J2203/14C08J2203/184C08J2375/04
Inventor 陈思猛何军
Owner GUANGDONG BOSHENG NEW MATERIAL TECH CO LTD
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