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A kind of high elastic antibacterial foamed polyurethane and its preparation method and application

A foaming polyurethane, elastic and antibacterial technology, applied in the field of polyurethane materials, high elastic antibacterial foaming polyurethane materials, can solve the problems of high cost, poor cushioning effect, etc., to achieve good elasticity, excellent long-term antibacterial, compression deformation small effect

Active Publication Date: 2021-02-02
得创热塑性聚氨酯(东莞)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, excellent comprehensive performance has become a major trend in material development. In the above-mentioned applications, good elasticity and small compression deformation have become necessary properties. The cost of conventional polyurethane materials is relatively high, and the cushioning effect is slightly poor.

Method used

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  • A kind of high elastic antibacterial foamed polyurethane and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) The calcium carbonate filler is pulverized to about 3 μm; Get the calcium carbonate of 3 μm of 20 weight parts and the inorganic antibacterial agent nano-titanium dioxide of 10 weight parts, the coupling agent KH560 of 0.5 weight part in water / ethanol solvent (volume ratio 1: 1) Mix and stir for 30 minutes, and dry to obtain the premix;

[0042] (2) Mix 40 parts by weight of JSH20 after drying with 300 parts by weight of 330N, 18 parts by weight of TDI, 39 parts by weight of HDI and 1 part by weight of chain extender BDO. Reaction for 3.5 hours;

[0043] (3) Add 1.5 parts by weight of the polymerizable antibacterial agent dimethyl octadecyl allyl ammonium chloride and all the premixes obtained in step (1) to the material obtained in step (2) and mix evenly, and then add Nippon Sekisui 10 parts by weight of heat-expandable foamed microspheres EHM303, 2 parts by weight of dibenzoyl peroxide and 1.8 parts by weight of accelerator M, mixed evenly, and vulcanized at abo...

Embodiment 2

[0045] In Example 1, 18 parts by weight of TDI and 39 parts by weight of HDI were replaced by 56 parts by weight of HDI, and other operations and compositions were the same as in Example 1.

Embodiment 3

[0047] Replace 2 parts by weight of dibenzoyl peroxide in Example 1 with 6 parts by weight of dibenzoyl peroxide, and other operations and compositions are the same as in Example 1.

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Abstract

The present invention relates to a highly elastic and antibacterial foamed polyurethane, and relates to its preparation method and application. The specific scheme is: 100-350 parts by weight of polyol, 50-350 parts by weight of isocyanate, 0.5-5 parts by weight of chain extender, 0.1-10 parts by weight of polymerizable antibacterial agent, 1-30 parts by weight of inorganic antibacterial agent, 1-30 parts by weight of thermally expandable foamed microspheres, 0-20 parts by weight of filler, 1-5 parts by weight of peroxide vulcanizing agent, accelerator 0.1-5 parts by weight, 0.5-5 parts by weight of coupling agent, the polyol is a compound of polycarbonate diol and polyether triol, the antibacterial agent is a compound of a polymerizable antibacterial agent and an inorganic antibacterial agent, and adopts Japan's Sekisui heat-expandable foaming microsphere EHM303 finally obtained a polyurethane foam material with long-term antibacterial properties, good elasticity, excellent compression deformation, and stable cells.

Description

technical field [0001] The invention relates to the field of polyurethane materials, in particular to the field of a highly elastic and antibacterial foamed polyurethane material, and also relates to a preparation method and application of the foamed polyurethane material. Background technique [0002] Polyurethane is a kind of high molecular polymer with excellent performance, which is polymerized by polyester (or polyether) and diisocyanamide lipid compound. Its chemical structure is more complex than that of general elastic polymers. In addition to the recurring carbamate groups, the molecular chain often contains ester groups, ether groups, aromatic groups and other groups. It has the advantages of high hardness, good strength, high elasticity, high wear resistance, tear resistance, aging resistance, ozone resistance, radiation resistance and good electrical conductivity, which are incomparable to ordinary rubber. Compared with sulfur vulcanization, the vulcanization ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/40C08G18/44C08G18/48C08G18/32C08J9/32C08L75/04C08K9/06C08K3/26C08K3/22C08K5/19
CPCC08G18/3206C08G18/4018C08G18/44C08G18/4829C08G18/6607C08J9/32C08J2375/04C08K3/22C08K3/26C08K5/19C08K9/06C08K2003/2241C08K2003/265C08K2201/003C08K2201/011
Inventor 叶陈瑶
Owner 得创热塑性聚氨酯(东莞)有限公司