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Polyurethane prepared by adopting ultraviolet irradiation method and preparation method of polyurethane

A technology of polyurethane and illumination method, which is applied in the field of polyurethane, can solve the problems of decreased mechanical properties, poor interface bonding strength, insoluble and other problems, and achieve the effects of improving bonding strength, accelerating the curing process, and accelerating catalytic reactions

Active Publication Date: 2020-11-24
安徽嘉明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

[0004] Since polyurethane is an organic macromolecular polymer, when it is combined with an inorganic antibacterial agent, it is prone to poor interfacial bonding strength and reduced mechanical properties; while organic antibacterial raw materials such as guanidinium, quaternary ammonium salts, pyridines and N-halamines There is a problem of insoluble antibacterial agent directly added to the polyurethane polymerization system

Method used

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  • Polyurethane prepared by adopting ultraviolet irradiation method and preparation method of polyurethane

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Experimental program
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Effect test

Embodiment 1

[0023] A kind of preparation method of the polyurethane that adopts ultraviolet light method to prepare, comprises the following steps:

[0024] (1) To prepare an organic modifier, mix 20 g of 500-mesh silicon dioxide and 100 g of water evenly, then add 25 g of carboxymethyl cellulose and 80 g of gelatin, stir evenly, heat to 60° C. for 1 hour, grind after drying, and pass 300 mesh sieve to obtain the organic modifier.

[0025] (2) Heat 13 g of organic modifier and 4 g of diethylene glycol to 60 ° C, and mix them ultrasonically for 20 minutes, then mix the mixture of organic modifier and diethylene glycol with 0.4 dimethylcyclohexylamine g, β-(1,4)-2-amino-2-deoxy-D-glucose 11g, polyurethane prepolymer 45g, mix evenly, at 50mW / cm 2 Under the intensity of ultraviolet light, it was heated to 80°C and reacted for 3 hours to obtain polyurethane.

Embodiment 2

[0027] A kind of preparation method of the polyurethane that adopts ultraviolet light method to prepare, comprises the following steps:

[0028] Heat 18g of the organic modifier and 6g of diethylene glycol in Example 1 to 60°C, and ultrasonically mix for 20min, then mix the mixture of the organic modifier and diethylene glycol with dimethylcyclohexane Amine 1173 0.4g, β-(1,4)-2-amino-2-deoxy-D-glucose 14g, polyurethane prepolymer 48g, mix well, at 40mW / cm 2 Under the intensity of ultraviolet light, it was heated to 90° C. and reacted for 2.5 hours to obtain polyurethane.

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Abstract

The invention discloses polyurethane prepared by adopting an ultraviolet irradiation method and a preparation method of the polyurethane. The polyurethane prepared by adopting the ultraviolet irradiation method is prepared from the following raw materials: an organic modifier, diethylene glycol, dimethylcyclohexylamine, a glucose derivative and a polyurethane prepolymer. The deficiencies in the prior art are overcome; and silica is coated with gel, and then the diethylene glycol and the glucose derivative react with the polyurethane prepolymer, so that the polyurethane prepared by adopting theultraviolet irradiation method has antibacterial ability and flame retardant ability, and the polyurethane prepared by adopting the ultraviolet irradiation method has relatively good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of polyurethane, in particular to polyurethane prepared by an ultraviolet light irradiation method and a preparation method thereof. Background technique [0002] Polyurethane (PU) is a polymer material containing repeating urethane (-NHCOO-) chain segments, and it is also one of the most widely used polymers. Its applications include coatings, adhesives, furniture, paints, Automotive lubricating oil additives, pharmaceutical synthetic materials, food packaging, footwear, building materials, gaskets, etc. [0003] Polyurethane materials are easily disturbed by bacteria during use, because the polyether or polyester segment of polyurethane macromolecules can become a carbon source for microbial growth. At the same time, certain additives in polyurethane materials such as plasticizers, lignocellulose, stabilizers and colorants are also susceptible to microbial attack, which brings many problems to the use of ...

Claims

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Application Information

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IPC IPC(8): C08G18/32C08G18/18C08G18/10C08K9/10C08K3/36
CPCC08G18/3284C08G18/1816C08G18/10C08K9/10C08K3/36
Inventor 刘磊杨建军张建安何祥燕吴明元吴庆云刘久逸
Owner 安徽嘉明新材料科技有限公司
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