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Waterproof breathable antibacterial type TPU (thermoplastic polyurethane) film and preparation method thereof

A waterproof, breathable and film technology, which is applied in the field of waterproof, breathable and antibacterial TPU film and its preparation, and can solve the problems of no improvement in the stability and failure of sterilizing and persistent bactericides

Active Publication Date: 2015-10-07
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the persistence of sterilization and the stability of fungicides have not been improved, and they are more likely to be affected by the environment and become invalid.

Method used

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  • Waterproof breathable antibacterial type TPU (thermoplastic polyurethane) film and preparation method thereof
  • Waterproof breathable antibacterial type TPU (thermoplastic polyurethane) film and preparation method thereof
  • Waterproof breathable antibacterial type TPU (thermoplastic polyurethane) film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0052] The raw material composition and parts by weight of the present embodiment are as follows:

[0053]

[0054] The raw materials in this embodiment also include catalyst, light stabilizer, heat stabilizer, anti-hydrolysis agent and lubricant;

[0055] The number average molecular weight of polyethylene glycol is 2000;

[0056] The present embodiment adopts following method to carry out the preparation of TPU film:

[0057] (1) Take a dry container, add polytetramethylene ether glycol, polyethylene glycol and tertiary lauryl amine alcohol and stir at a speed of 80r / min, heat to 80°C in a vacuum state, and dehydrate for 20min;

[0058] (2) Cool the reaction vessel to 40°C, add diisocyanate under the protection of helium, and carry out prepolymerization at 55°C for 15 minutes;

[0059] (3) drop chain extender, catalyst, light stabilizer, heat stabilizer, anti-hydrolysis agent and lubricant, carry out TPU synthetic reaction;

[0060] (4) Heating the reaction vessel to 7...

Embodiment 2

[0063] The raw material composition and parts by weight of the present embodiment are as follows:

[0064]

[0065] Raw materials in this embodiment also include catalyst, light stabilizer and thermal stabilizer;

[0066] The number average molecular weight of polyethylene glycol is 5000;

[0067] The present embodiment adopts following method to carry out the preparation of TPU film:

[0068] (1) Take a dry container, add polytetramethylene ether glycol, polyethylene glycol and tertiary lauryl amine alcohol and stir at a speed of 90r / min, heat to 80°C in a vacuum state, and dehydrate for 20min;

[0069] (2) Cool the reaction container to 40°C, add diisocyanate under the protection of neon gas, and carry out prepolymerization reaction at 55°C for 15 minutes;

[0070] (3) drop chain extender, catalyzer, light stabilizer and heat stabilizer, carry out TPU synthetic reaction;

[0071] (4) The temperature of the reaction vessel was raised to 70°C, and then epoxyheptachlorohy...

Embodiment 3

[0074] The raw material composition and parts by weight of the present embodiment are as follows:

[0075]

[0076] The raw material in the present embodiment also includes thermal stabilizer, anti-hydrolysis agent and lubricant;

[0077] The number average molecular weight of polyethylene glycol is 3500;

[0078] The present embodiment adopts following method to carry out the preparation of TPU film:

[0079] (1) Take a dry container, add polytetramethylene ether glycol, polyethylene glycol and tertiary lauryl amine alcohol and stir at a speed of 100r / min, heat to 80°C in a vacuum state, and dehydrate for 20min;

[0080] (2) Cool the reaction vessel to 40°C, add diisocyanate under the protection of helium, and carry out prepolymerization at 55°C for 15 minutes;

[0081] (3) drop chain extender, heat stabilizer, anti-hydrolysis agent and lubricant, carry out TPU synthetic reaction;

[0082] (4) Heating the temperature of the reaction vessel to 70°C, then adding epichlorohy...

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Abstract

The invention relates to a waterproof breathable antibacterial type TPU (thermoplastic polyurethane) film and a preparation method thereof. The TPU film comprises polytetramethylene ether glycol, polyethylene glycol, diisocyanate, a chain extender, dodecyl dimethyl tertiary amine alcohol, epoxy chloromethane, epoxy acid and alkyl halide. The preparation method comprises the following steps: (1) adding polytetramethylene ether glycol, polyethylene glycol and dodecyl dimethyl tertiary amine alcohol while stirring, and performing dehydration in a vacuum state; (2) cooling a reaction vessel, and adding diisocyanate to perform pre-polymerization reaction under a protective atmosphere; (3) adding the chain extender to perform TPU synthetic reaction; (4) heating the reaction vessel, adding epoxy chloromethane, epoxy acid and alkyl halide, and performing heat preservation; and (5) adding a solvent under a vacuum condition, and heating to perform quaternization to obtain the waterproof breathable antibacterial type TPU film. The TPU film has good waterproof and breathable properties and extremely strong bactericidal ability, and has extremely broad prospects in application of medical instruments and appliances.

Description

technical field [0001] The invention relates to the technical field of synthetic materials, in particular to a TPU film, in particular to a waterproof, breathable and antibacterial TPU film and a preparation method thereof. Background technique [0002] At present, the use of medical polymer materials is showing a continuous and rapid growth trend, and polymer materials with antibacterial properties have become the focus and hotspot of the current research and development of biomedical materials. Nowadays, medical biopolymer materials are widely used in aspects such as medical sutures, urinary catheters and artificial organs. If bacterial infection is caused during use, it will lead to serious or even fatal consequences. At present, people mainly use two methods to modify medical materials to achieve the effect of sterilization. One is to achieve antibacterial effect by preventing bacterial adhesion; the other is to achieve antibacterial effect by interfering with the compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/10C08G18/66C08G18/48C08G18/32C08G18/83
CPCC08G18/10C08G18/3206C08G18/4808C08G18/4833C08G18/4854C08G18/6674C08G18/831
Inventor 何建雄王一良
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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