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Inorganic nano-material modified polyurethane resin and preparation method thereof

A technology of inorganic nanomaterials and polyurethane resin, which is applied in the field of polyurethane resin, can solve the problems of polyurethane tensile strength and tensile strength decrease, polyurethane performance instability, and damage to polyurethane force, etc., to achieve enhanced tensile strength and enhanced heat resistance , Enhance the effect of tensile strength and tensile strength

Inactive Publication Date: 2019-08-02
广东大盈新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these inorganic materials have poor compatibility with polyurethane and are easy to separate, resulting in unstable performance of polyurethane
The particle size of these inorganic materials is large, and it will also destroy the force between polyurethane molecules, resulting in a significant decrease in the tensile strength and tensile strength of polyurethane.

Method used

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  • Inorganic nano-material modified polyurethane resin and preparation method thereof
  • Inorganic nano-material modified polyurethane resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An inorganic nanomaterial modified polyurethane resin, comprising the following components in weight percentage: 7.2% of isophorone diisocyanate, 28.8% of 4,4'-dicyclohexylmethane diisocyanate, 7.2% of polycaprolactone polyol, Polycarbonate polyol 10.8%, polytetramethylene ether glycol 18%, 1,6-hexanediol 0.57%, dimethylolpropionic acid 0.86%, trimethylolpropane 0.57%, isoflurane Ketonediamine 0.4%, Diethylenetriamine 0.6%, Dimethylformamide 10%, Dimethylacetamide 10%, Nano-Silicon Dioxide 1.75%, Carbon Black 1.75%, γ-Aminopropyl Triethoxy Silane 0.43%, Vinyltris(β-methoxyethoxy)silane 1.07% and Organic Bismuth 0.05%.

[0028] A preparation method of inorganic nanomaterial modified polyurethane resin, comprising the following steps:

[0029] (1) Disperse dimethylformamide, dimethylacetamide, nano silicon dioxide and carbon black in a high-speed disperser for 30 minutes to obtain a dispersion;

[0030] (2) dehydrating polycaprolactone polyol, polycarbonate polyol and p...

Embodiment 2

[0035] A kind of inorganic nano material modified polyurethane resin, comprises the component of following percentage by weight:

[0036] Isophorone diisocyanate 8.45%, 4,4'-dicyclohexylmethane diisocyanate 29.55%, polycaprolactone polyol 7.6%, polycarbonate polyol 7.6%, polytetramethylene ether diol 22.8 %, 1,6-hexanediol 0.286%, dimethylolpropionic acid 0.571%, trimethylolpropane 0.143%, isophorone diamine 0.5%, diethylenetriamine 0.5%, dimethylformamide 18%, nano-silica 2.5%, γ-aminopropyltriethoxysilane 0.5%, vinyltris(β-methoxyethoxy)silane 1% and organic bismuth 0.05%.

[0037] A preparation method of inorganic nanomaterial modified polyurethane resin, comprising the following steps:

[0038] (1) Disperse dimethylformamide and nano silicon dioxide in a high-speed disperser for 35 minutes to obtain a dispersion;

[0039] (2) dehydrating polycaprolactone polyol, polycarbonate polyol and polytetramethylene ether glycol under vacuum at 120°C for 2 hours;

[0040] (3) Add ...

Embodiment 3

[0044]A kind of inorganic nano material modified polyurethane resin, comprises the component of following percentage by weight:

[0045] 10% isophorone diisocyanate, 30% 4,4'-dicyclohexylmethane diisocyanate, 7% polycaprolactone polyol, 10.5% polycarbonate polyol, 17.5% polytetramethylene ether glycol %, 1,6-hexanediol 0.65%, dimethylolpropionic acid 0.65%, trimethylolpropane 0.65%, isophorone diamine 0.4%, diethylenetriamine 0.6%, dimethylformamide 8%, dimethylacetamide 8%, nano-silica 1.5%, carbon black 1.5%, γ-aminopropyltriethoxysilane 1%, vinyl tris(β-methoxyethoxy)silane 2% and organic bismuth 0.05%.

[0046] A preparation method of inorganic nanomaterial modified polyurethane resin, comprising the following steps:

[0047] (1) Disperse dimethylformamide, dimethylacetamide, nano silicon dioxide and carbon black in a high-speed disperser for 30 minutes to obtain a dispersion;

[0048] (2) dehydrating polycaprolactone polyol, polycarbonate polyol and polytetramethylene ...

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Abstract

The invention discloses inorganic nano-material modified polyurethane resin. The inorganic nano-material modified polyurethane resin is prepared from components in percentage by weight as follows: 35%-40% of isocyanate, 35%-40% of a polyol compound, 1.5%-6.5% of a chain extender, 15%-20% of a solvent, 2.0%-6.0% of an inorganic nanomaterial, 1.0%-5.0% of a silane coupling agent and 0.01%-0.05% of acatalyst. After polyurethane is modified with an inorganic nano-material, stretch strength of polyurethane resin is enhanced by 30%-40%, tensile strength is improved by 30%-50%, heat resistance is improved by 10%-20%, wear resistance is improved by 20%-30%, and besides, waterproof, moisture-permeable, anti-static and self-cleaning properties of the polyurethane resin are improved.

Description

technical field [0001] The invention relates to polyurethane resin, in particular to an inorganic nano material modified polyurethane resin and a preparation method thereof. Background technique [0002] Polyurethane resin is prepared by the reaction of isocyanate and polyol, and can be made into coatings, adhesives, reaction injection castings, fibers, foam materials, rubber, thermoplastic elastomers, composite materials and biomedical materials according to different requirements. Polyurethane has many excellent physical properties, but its heat resistance, hydrolysis resistance, oil resistance and other properties are poor. In order to improve the heat resistance of polyurethane, some inorganic materials are generally added. However, these inorganic materials have poor compatibility with polyurethane and are easy to separate, resulting in unstable performance of polyurethane. The particle size of these inorganic materials is large, and it will also destroy the force bet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/44C08G18/48C08G18/32C08G18/34C08K3/36C08K3/04
CPCC08G18/3206C08G18/348C08G18/4018C08G18/4277C08G18/44C08G18/4854C08G18/6625C08K3/04C08K3/36C08K2201/011
Inventor 翁卓林邓慕建祁永华
Owner 广东大盈新材料科技有限公司
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