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Antibacterial elastic polyurethane nanometer composite material and its preparation method

A nano-composite material, elastic polyurethane technology, applied in the application of antibacterial ground materials, the manufacture of antibacterial elastic polyurethane inorganic nanocomposite materials, the field of polyurethane inorganic nanocomposite materials, can solve problems such as long-term use performance effects of ground materials, and achieve raw materials Rich, outstanding wear resistance, the effect of a wide range of applications

Inactive Publication Date: 2004-03-03
苏州中科纳米高弹材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned prior art simply adopts the method of adding antibacterial agent, which sacrifices the physical properties of the main material to a certain extent, and affects the long-term service performance of the ground material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The invention is a manufacturing method of an antibacterial elastic nanocomposite material used for laying the ground of medical and sanitation places.

[0048] The preparation method of component A: based on the total weight of component A, add 40% propylene glycol polyoxypropylene ether with a molecular weight of 2500 and 37% propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reaction kettle, and heat up to 80°C under stirring. Vacuumize to about -0.1MPa, dehydrate at a temperature of 80°C for 3 hours, cool down to 35°C, slowly add 23% toluene diisocyanate dropwise under stirring, react at 70°C for 2 hours after adding the material, and vacuumize to about -0.1 MPa degassing, cooling to room temperature and discharging for later use.

[0049]The preparation method of component B is: based on the total weight of component B, add 36% glycerol polyoxypropylene ether and 5% inorganic nano-zinc oxide into the reaction kettle, stir, and then add...

Embodiment 2

[0052] The invention discloses a method for manufacturing an antibacterial elastic plastic nanocomposite material used for laying the ground of a public place.

[0053] The preparation method of component A: based on the total weight of component A, add 34% polyether diol with a molecular weight of 2500 and 40% propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reaction kettle, heat up to 80°C under stirring, pump Vacuum to about -0.1MPa, dehydrate at 80°C for 3 hours, cool down to 35°C, slowly add 26% diisocyanate dropwise under stirring, react at 70°C for 2.5 hours after adding, vacuumize and degas, cool down to room temperature Material spare.

[0054] The preparation method of component B: based on the total weight of component B, add 32% glycerol polyoxypropylene ether, 5% inorganic nano-zinc oxide and 3% organic hydrotalcite into the reaction kettle, stir, and then add 4 %3,3'-dichloro-4,4'-diaminodiphenylmethane, 27% talc, 24% chlorinated ...

Embodiment 3

[0057] The preparation method of component A: based on the total weight of component A, add 30% polyether diol with a molecular weight of 2000 and 42% propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reaction kettle, and heat up to 80°C under stirring. Vacuumize to about -0.1MPa, dehydrate at 80°C for 3 hours, cool down to 40°C, slowly add 28% diisocyanate dropwise under stirring, react at 70°C for 3 hours after adding, vacuumize and degas, cool to room temperature The material is ready for use.

[0058] The preparation method of component B is: based on the total weight of component B, add 32% glycerol polyoxypropylene ether, 1% inorganic nano-silicon oxide and 7% organic hydrotalcite into the reaction kettle, stir, and then add 5% 3,3'-dichloro-4,4'-diaminodiphenylmethane, 25% talc, 26% chlorinated paraffin oil, 1% colorant oil soluble yellow R, 1% transparent blue RP (2N ) and 1% antibacterial agent R350, the temperature was raised to 80°C, ...

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PUM

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Abstract

An antibacterial elastic nano-class polyurethane composition is prepared through mixing antibacterial agent, SiO2 or ZnO nanoparticles or laminated nano material, and polyether polyol, vacuumizing, dewatering, degassing, adding assistants to obtain nano material B, preparing polyurethane prepolymer as B, proportional mixing A with B, adding catalyst, stirring and solidifying. Its advantages are outstanding antibacterial performance and high mechanical performance.

Description

【Field of Invention】 [0001] The invention relates to an antibacterial elastic nanocomposite material, in particular, the invention relates to a polyurethane inorganic nanocomposite material with antibacterial properties, and relates to the application of the composite material in antibacterial ground materials. The invention also relates to a manufacturing method of the antibacterial elastic polyurethane inorganic nanocomposite material. 【Background technique】 [0002] With the acceleration of the pace of modern life and the increase of population mobility, bacteria adhering to and growing on various surfaces, especially medical, sanitation, and public event venues, pose an increasing threat to people's health. In order to kill these bacteria, in addition to frequent cleaning and cleaning methods for items, there are also methods such as using various disinfectants or performing high temperature, high pressure or ultraviolet light, microwave irradiation and other methods for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/00C08L75/08
Inventor 马永梅璋杨刘必前胡晓明江雷
Owner 苏州中科纳米高弹材料有限公司
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