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Antibacterial and antistatic TPU film material and preparation method thereof

A thin film material and antistatic technology, which is applied in the field of polymer material synthesis, can solve the problems of easy loss of silver, loss of antibacterial performance, poor compatibility, etc., and achieve the effect of improving dispersion, strong antistatic performance, and high temperature resistance

Active Publication Date: 2021-09-17
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is difficult for polyurethane antibacterial film materials in the traditional sense to have both antistatic and antibacterial properties. At present, nano-silver and antibacterial agents are commonly used as bactericidal substances. However, silver nanoparticles AgNPs and antibacterial agents are not compatible in practical applications. Silver is easy to lose and loses antibacterial properties, so there is an urgent need for a TPU film material with high antibacterial properties, antistatic properties, mechanical stability and thermal stability

Method used

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  • Antibacterial and antistatic TPU film material and preparation method thereof
  • Antibacterial and antistatic TPU film material and preparation method thereof
  • Antibacterial and antistatic TPU film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] An antibacterial and antistatic TPU film material made of the following weights:

[0040]

[0041] Silver-loaded nano-graphene, the preparation method is as follows:

[0042] 1. Weigh graphene oxide, silane coupling agent KH-550, anhydrous ethanol and deionized water in turn, add them into the reaction flask and mix thoroughly, and disperse by ultrasonic; 2, the final product is processed to obtain silanized graphene oxide; wherein the feeding ratio of graphene oxide, silane coupling agent, absolute ethanol and deionized water is 3:0.48:42:14, the temperature of the silanization reaction is 62 ° C, and the reaction The time is 115min;

[0043] 2. AgNPs loaded on graphene surface: First, 500 mg of silanized modified graphene oxide was weighed and dispersed in 300 mL of stannous chloride solution with a concentration of 0.5 mmol / L for sensitization; then 80 mg of sensitized graphite oxide was taken. The alkene was ultrasonically dispersed in 1000 mL of absolute ethan...

Embodiment 2

[0050] The preparation of an antibacterial and antistatic TPU film material is made of the following weights:

[0051]

[0052] The silver-loaded nano-graphene is prepared as follows:

[0053] 1. Weigh graphene oxide, silane coupling agent KH-570, absolute ethanol and deionized water in turn, add them into the reaction flask and mix thoroughly, and disperse by ultrasonic; 2 , the final product is processed to obtain silanized graphene oxide; wherein the feeding ratio of graphene oxide, silane coupling agent, absolute ethanol and deionized water is 3:0.5:44:15, the temperature of silanization reaction is 65 ℃, and the reaction The time is 120min;

[0054] 2. AgNPs supported on graphene surface: First, 500 mg of silanized modified graphene oxide was weighed and ultrasonically dispersed in 300 mL of stannous chloride solution for sensitization at a concentration of 0.5 mmol / L; then 80 mg of sensitized graphite oxide was taken. The alkene was ultrasonically dispersed in 1000 ...

Embodiment 3

[0061] The preparation of an antibacterial and antistatic TPU film material is composed of the following weights:

[0062]

[0063]

[0064] Silver-loaded nano-graphene, the preparation method is as follows:

[0065] 1. Weigh graphene oxide, silane coupling agent KH-550, anhydrous ethanol and deionized water in turn, add them into the reaction flask and mix thoroughly, and disperse by ultrasonic; 2 , the final product is processed to obtain silanized graphene oxide; wherein the feeding ratio of graphene oxide, silane coupling agent, absolute ethanol and deionized water is 3:0.52:48:16, the temperature of silanization reaction is 68 ℃, and the reaction The time is 125min;

[0066] 2. AgNPs supported on graphene surface: First, 500 mg of silanized modified graphene oxide was weighed and ultrasonically dispersed in 300 mL of stannous chloride solution for sensitization at a concentration of 0.5 mmol / L; then 80 mg of sensitized graphite oxide was taken. The alkene was ultr...

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Abstract

The invention belongs to the field of polymer material synthesis, and in particular relates to an antibacterial and antistatic TPU film material and a preparation method thereof. The TPU film material is composed of the following parts by mass: 100 parts of thermoplastic polyurethane elastomer; 0.5-1 part of silver-loaded graphene; 0.3-1 part of aminated carbon nanotube; 0.1-0.5 part of hydrolysis-resistant agent; 0.1-1 part of ultraviolet absorber; 0.5-15 parts of plasticizer; 0.1-0.5 part of antioxidant; the prepared film material has excellent antibacterial and antistatic properties and high mechanical strength. The present invention also provides its preparation method: 1. Preparation of silver-loaded graphene material and aminated carbon nanotube; 2. After the raw materials are evenly mixed by a melt blending method, they are extruded and granulated by a twin-screw extruder; 3. The dried material is cast to the casting roller through the feed port of the casting machine, cooled and shaped to form a film; the preparation method is scientific, reasonable, simple and easy to implement.

Description

technical field [0001] The invention belongs to the field of polymer material synthesis, in particular to an antibacterial and antistatic TPU film material and a preparation method thereof. Background technique [0002] The polyurethane industry gradually developed in the 20th century, and the application of polyurethane materials has become more and more extensive and in-depth. In some special fields, the functionalization of polyurethane materials is required to make it have one or more special functions, such as electrical conductivity. , antibacterial properties, etc. The polyurethane elastomer TPU is composed of polyester polyols, diisocyanates and small molecular chain extenders. By selecting the components of TPU and adjusting their proportions, the properties of the material can be changed in a wide range, so that it has both The flexibility of rubber and the rigidity of plastic. The polyurethane film, like the polyurethane elastomer, has excellent high tension, hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/06C08K13/06C08K9/02C08K9/06C08K3/04C08K5/134C08J5/18
CPCC08J5/18C08J2375/06C08K5/1345C08K9/02C08K9/06C08K2201/011C08K3/041C08K3/042
Inventor 陈淑海李龙飞管永范文庆高振胜
Owner SHANDONG INOV POLYURETHANE
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