Antibacterial elastic polyurethane nanometer composite material and its preparation method

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 present invention relates to an antibacterial elastic nanocomposite material, in particular, the present 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 nano composite material.

Background technique

[0002] With the accelerated pace of modern life and the increase of population mobility, various surfaces, especially in the environment of medical, sanitation, and public activity venues, are becoming more and more threatening to people's health. In order to kill these bacteria, in addition to frequent cleaning and cleaning methods, various disinfectants or methods such as high temperature, high pressure, ultraviolet light, and microwave irradiation are used for disinfection and sterilization. Not only i...

Examples

Embodiment 1

[0047] The invention is used for the manufacturing method of the antibacterial elastic nano composite material for laying the ground of medical and health places.

[0048] The preparation method of component A: based on the total weight of component A, add 40% of propylene glycol polyoxypropylene ether with a molecular weight of 2500 and 37% of propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reactor, and heat to 80°C under stirring. Vacuum to about -0.1MPa, dehydration at a temperature of 80°C for 3 hours, cool to 35°C, slowly add 23% toluene diisocyanate dropwise with stirring, and react at 70°C for 2 hours after the addition is complete, then vacuum to about -0.1 MPa degassed, cooled to room temperature and discharged for use.

[0049]The preparation method of component B is: based on the total weight of component B, 36% glycerol polyoxypropylene ether and 5% inorganic nano-zinc oxide are added to the reactor, stirred, and then added 5% 3,3'- Dic...

Embodiment 2

[0052] The invention is used for the manufacturing method of the antibacterial elastic plastic nanocomposite material for laying the ground of public places.

[0053] The preparation method of component A: based on the total weight of component A, add 34% of the polyether glycol with a molecular weight of 2500 and 40% of the propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reactor. Vacuum to about -0.1MPa, dehydration at a temperature of 80°C for 3 hours, cool to 35°C, slowly add 26% diisocyanate dropwise with stirring, react at 70°C for 2.5 hours after addition, vacuum degas, and cool 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 reactor, stir, and then add 4 %3,3'-dichloro-4,4'-diaminodiphenylmethane, 27% talc, 24% chlorinated paraffin oil, 1% colorant oil-solubl...

Embodiment 3

[0057] The preparation method of component A: based on the total weight of component A, 30% of the polyether glycol with a molecular weight of 2000 and 42% of the propylene glycol polyoxypropylene ether with a molecular weight of 1000 are added to the reactor, and the temperature is raised to 80°C under stirring. Vacuum to about -0.1MPa, dehydration at 80°C for 3 hours, cool to 40°C, slowly add 28% diisocyanate dropwise with stirring, react at 70°C for 3 hours after adding the material, vacuum degas, and cool to room temperature Discharge and spare.

[0058] The preparation method of component B is: based on the total weight of component B, add 32% glycerol polyoxypropylene ether, 1% inorganic nano-silica and 7% organic hydrotalcite into the reactor, 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, heated to 80°C, vacuumed to about...

Field of Invention

[0001] The present invention relates to an antibacterial elastic nanocomposite material, in particular, the present 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 nano composite material.

Background technique

[0002] With the accelerated pace of modern life and the increase of population mobility, various surfaces, especially in the environment of medical, sanitation, and public activity venues, are becoming more and more threatening to people's health. In order to kill these bacteria, in addition to frequent cleaning and cleaning methods, various disinfectants or methods such as high temperature, high pressure, ultraviolet light, and microwave irradiation are used for disinfection and sterilization. Not only i...

Examples

Embodiment 1

[0047] The invention is used for the manufacturing method of the antibacterial elastic nano composite material for laying the ground of medical and health places.

[0048] The preparation method of component A: based on the total weight of component A, add 40% of propylene glycol polyoxypropylene ether with a molecular weight of 2500 and 37% of propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reactor, and heat to 80°C under stirring. Vacuum to about -0.1MPa, dehydration at a temperature of 80°C for 3 hours, cool to 35°C, slowly add 23% toluene diisocyanate dropwise with stirring, and react at 70°C for 2 hours after the addition is complete, then vacuum to about -0.1 MPa degassed, cooled to room temperature and discharged for use.

[0049]The preparation method of component B is: based on the total weight of component B, 36% glycerol polyoxypropylene ether and 5% inorganic nano-zinc oxide are added to the reactor, stirred, and then added 5% 3,3'- Dic...

Embodiment 2

[0052] The invention is used for the manufacturing method of the antibacterial elastic plastic nanocomposite material for laying the ground of public places.

[0053] The preparation method of component A: based on the total weight of component A, add 34% of the polyether glycol with a molecular weight of 2500 and 40% of the propylene glycol polyoxypropylene ether with a molecular weight of 1000 into the reactor. Vacuum to about -0.1MPa, dehydration at a temperature of 80°C for 3 hours, cool to 35°C, slowly add 26% diisocyanate dropwise with stirring, react at 70°C for 2.5 hours after addition, vacuum degas, and cool 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 reactor, stir, and then add 4 %3,3'-dichloro-4,4'-diaminodiphenylmethane, 27% talc, 24% chlorinated paraffin oil, 1% colorant oil-solubl...

Embodiment 3

[0057] The preparation method of component A: based on the total weight of component A, 30% of the polyether glycol with a molecular weight of 2000 and 42% of the propylene glycol polyoxypropylene ether with a molecular weight of 1000 are added to the reactor, and the temperature is raised to 80°C under stirring. Vacuum to about -0.1MPa, dehydration at 80°C for 3 hours, cool to 40°C, slowly add 28% diisocyanate dropwise with stirring, react at 70°C for 3 hours after adding the material, vacuum degas, and cool to room temperature Discharge and spare.

[0058] The preparation method of component B is: based on the total weight of component B, add 32% glycerol polyoxypropylene ether, 1% inorganic nano-silica and 7% organic hydrotalcite into the reactor, 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, heated to 80°C, vacuumed to about...