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Waterproof and moisture-permeable composite TPU film

A waterproof, moisture-permeable, composite technology, which is applied in the direction of synthetic resin layered products, lamination, coating, etc., can solve the problems that the composite TPU film is not waterproof and moisture-permeable, and the two-layer material is not firmly bonded. Achieve the effects of increasing practicability, solving the problem of high temperature resistance, high strength and durability, and chemical corrosion resistance

Pending Publication Date: 2021-03-16
浙江长鸿纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies of the prior art, the present invention provides a waterproof and moisture-permeable composite TPU film, which solves the problem that the composite TPU film does not have waterproof and moisture-permeable functions or can only have one of the functions and the bonding between the two layers of materials is not firm. The problem

Method used

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Examples

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Embodiment 1

[0029] A waterproof and moisture-permeable composite TPU film, comprising the following raw materials in proportions by weight: thermoplastic polyurethane: 100 parts; polystyrene: 50 parts; polyisobutylene: 40 parts; dimethyl terephthalate: 50 parts; Ethylene glycol: 50 parts; catalyst: 10 parts; polypropylene: 30 parts; triethanolamine: 50 parts; azobisisobutylcyanide: 3 parts; methanol: 10 parts; polytetrafluoroethylene: 25 parts; 5 parts; the balance is water.

[0030] The preparation method of the waterproof and moisture-permeable composite TPU film comprises the following steps:

[0031] Step 1: According to the parts by weight, preheat the reactor at 50 degrees Celsius for 10 minutes in advance, then add dimethyl terephthalate and ethylene glycol into the reactor, heat up to 60 degrees Celsius and stir at 300r / min for 3 minutes , and then add one-third of the catalyst in the reactor, and stir at 400r / min for 15 minutes.

[0032] Step 2: According to the parts by weight...

Embodiment 2

[0045] A waterproof and moisture-permeable composite TPU film, comprising the following raw materials in proportions by weight: thermoplastic polyurethane: 110 parts; polystyrene: 60 parts; polyisobutylene: 50 parts; dimethyl terephthalate: 55 parts; Ethylene glycol: 55 parts; catalyst: 15 parts; polypropylene: 35 parts; triethanolamine: 55 parts; azobisisobutylcyanide: 4 parts; methanol: 15 parts; 7 parts; balance water.

[0046] The preparation method of the waterproof and moisture-permeable composite TPU film comprises the following steps:

[0047] Step 1: According to the parts by weight, preheat the reactor at 50 degrees Celsius in advance for 15 minutes, then add dimethyl terephthalate and ethylene glycol into the reactor, heat up to 60 degrees Celsius and stir at 300r / min for 4 minutes , and then add one-third of the catalyst in the reactor, and stir at 400r / min for 20 minutes.

[0048] Step 2: According to the parts by weight, add one-third of the catalyst to the ins...

Embodiment 3

[0061] A waterproof and moisture-permeable composite TPU film, comprising the following raw materials in proportions by weight: thermoplastic polyurethane: 120 parts; polystyrene: 70 parts; polyisobutylene: 60 parts; dimethyl terephthalate: 60 parts; Ethylene glycol: 60 parts; catalyst: 20 parts; polypropylene: 40 parts; triethanolamine: 60 parts; azobisisobutylcyanide: 5 parts; methanol: 20 parts; polytetrafluoroethylene: 35 parts; 9 parts; balance water.

[0062] The preparation method of the waterproof and moisture-permeable composite TPU film comprises the following steps:

[0063] Step 1: According to the parts by weight, preheat the reactor at 50 degrees Celsius in advance for 20 minutes, then add dimethyl terephthalate and ethylene glycol into the reactor, heat up to 60 degrees Celsius and stir at 300r / min for 5 minutes , and then add one-third of the catalyst in the reactor, and stir at 400r / min for 25 minutes.

[0064] Step 2: According to the parts by weight, add o...

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Abstract

The invention discloses a waterproof and moisture-permeable composite TPU film, which comprises the following raw materials by weight: 100-120 parts of thermoplastic polyurethane; 50-70 parts of polystyrene; 40-60 parts of polyisobutylene; 50-60 parts of dimethyl terephthalate; 50-60 parts of ethylene glycol; 10-20 parts of a catalyst; 30-40 parts of polypropylene; 50-60 parts of triethanolamine;3-5 parts of azodiisobutyronitrile; 10-20 parts of methanol; 25-35 parts of polytetrafluoroethylene; 5-9 parts of a curing agent; and the balance of water. The raw materials are put into a reaction kettle for reaction according to the steps. According to the invention, the composite TPU film integrating moisture permeability and waterproofness can be realized, and a material layer A in the composite TPU film can enable the composite TPU film to have higher strength, durability and chemical corrosion resistance.

Description

technical field [0001] The invention relates to the field of chemical products, in particular to a waterproof and moisture-permeable composite TPU film. Background technique [0002] TPU is increasingly popular because of its superior performance and environmental protection concept. TPU not only has excellent high tension, high tensile strength, toughness and aging resistance, but also is a mature environmental protection material. At present, TPU has been widely used in : Shoes materials, garments, inflatable toys, water and underwater sports equipment, medical equipment, fitness equipment, car seat materials, umbrellas, suitcases, bags, etc. [0003] At present, the composite TPU film in the market does not have waterproof and moisture permeability or can only have one of these functions. The service life of the composite TPU film. Contents of the invention [0004] In view of the deficiencies of the prior art, the present invention provides a waterproof and moisture-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/40B32B27/32B32B27/08B32B7/12B32B37/10B32B37/12B32B33/00B32B37/24C08J5/18C08L75/04C08L25/06C08L67/02C08L23/20C08L23/12C09D127/18C09J123/12
CPCB32B7/12B32B27/08B32B27/32B32B27/40B32B33/00B32B37/10B32B37/1284B32B37/24B32B2037/243B32B2255/10B32B2307/306B32B2307/714B32B2307/7265C08J5/18C08J2367/02C08J2375/04C08J2423/12C08J2423/20C08J2425/06C09D127/18C09J123/12
Inventor 付红明
Owner 浙江长鸿纺织科技有限公司
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