Unlock instant, AI-driven research and patent intelligence for your innovation.

Never-yellowing TPU film and preparation method thereof

A technology of thin film and anti-yellowing agent, which is applied in the field of TPU film and its preparation, non-yellowing TPU film and its preparation field, can solve the problems of mechanical properties that need to be improved, and achieve the convenience of large-scale industrial production and application, low price, The effect of easy access to raw materials

Active Publication Date: 2020-02-25
DONGGUAN XIONGLIN NEW MATERIAL TECH
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The TPU film provided by the invention has good yellowing resistance, but its mechanical properties still need to be improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Never-yellowing TPU film and preparation method thereof
  • Never-yellowing TPU film and preparation method thereof
  • Never-yellowing TPU film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The present embodiment provides a kind of TPU film, comprises the component of following percentage by weight:

[0055]

[0056]

[0057] Wherein, diisocyanate is isophorone diisocyanate (Evonik Vestanat IPDI of Germany); The weight average molecular weight of polyether polyol is 2500; Polyether polyol is polyoxypropylene glycol (Jiangsu Sanmu Chemical Industry, N210) and polytetrahydrofuran The combination of diols (Basf, Germany, Poly THF 2000), the mass ratio of the two is 3:1; the ultraviolet absorber is UV-9; the anti-yellowing agent is 2-(2'-hydroxyl-3',5'- Dicumylphenyl) benzotriazole; Catalyst is stannous octoate; Chain extender is ethylene glycol; Hindered amine light stabilizer is the combination of the compound of formula (I) structure and the compound of formula (II) structure; The mass ratio of the compound of the formula (I) structure to the compound of the formula (II) structure is 2:1, and the mass ratio of the hindered amine light stabilizer, ultr...

Embodiment 2

[0063] The present embodiment provides a kind of TPU film, comprises the component of following percentage by weight:

[0064]

[0065] Wherein, diisocyanate is isophorone diisocyanate (Evonik Vestanat IPDI of Germany); The weight-average molecular weight of polyether polyol is 2000; The combination of diols (Basf, Germany, Poly THF 2000), the mass ratio of the two is 2:1; the ultraviolet absorber is UV-P; the anti-yellowing agent is 2-(2'-hydroxyl-3',5'- Dicumylphenyl) benzotriazole; the mass ratio of hindered amine light stabilizer, ultraviolet absorber and anti-yellowing agent is 2:2:1; the catalyst is dibutyltin dioctoate; Amine; hindered amine light stabilizer is a combination of a compound of formula (I) and a compound of formula (II); the mass ratio of the compound of formula (I) to the compound of formula (II) is 1:1.

[0066] The present embodiment also provides a kind of preparation method of TPU film, comprises the steps:

[0067] (1) Mix diisocyanate, polyethe...

Embodiment 3

[0070] The present embodiment provides a kind of TPU film, comprises the component of following percentage by weight:

[0071]

[0072] Wherein, diisocyanate is isophorone diisocyanate (Evonik Vestanat IPDI of Germany); The weight average molecular weight of polyether polyol is 3000; Polyether polyol is polyoxypropylene glycol (Jiangsu Sanmu Chemical Industry, N210) and polytetrahydrofuran The combination of diols (Basf, Germany, Poly THF 2000), the mass ratio of the two is 4:1; the ultraviolet absorber is UV-531; the anti-yellowing agent is 2-(2'-hydroxyl-3',5'- Dicumylphenyl) benzotriazole; the mass ratio of hindered amine light stabilizer, UV absorber and anti-yellowing agent is 2.5:3:1; the catalyst is dibutyltin laurosilicate; the chain extender is 1 , 4-butanediol; The hindered amine light stabilizer is the combination of the compound of formula (I) structure and the compound of formula (II) structure; The mass ratio of the compound of formula (I) structure and the co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Elastic modulusaaaaaaaaaa
Tear strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a never-yellowing TPU film and a preparation method thereof. The never-yellowing TPU film comprises, by weight, 60-80 parts of diisocyanate, 80-120 parts of polyether polyol, 5-10 parts of a hindered amine light stabilizer, 5-10 parts of an ultraviolet light absorber, 1-3 parts of a chain extender, 1-3 parts of a catalyst and 1-8 parts of an anti-yellowing agent. The TPU film has good yellowing resistance and aging resistance on the premise of ensuring good mechanical properties, and the preparation method has the advantages of simplicity, available raw materials, low price and convenience in implementation.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a TPU film and a preparation method thereof, in particular to a non-yellowing TPU film and a preparation method thereof. Background technique [0002] Thermoplastic polyurethanes (TPU) have been widely used in various industries due to their excellent performance. At present, thermoplastic polyurethane elastomers widely used in the market are mainly made of diphenylmethane diisocyanate and small molecule diols. , Polymer glycol and other materials, the anti-yellowing performance of the products produced by this material is very poor. After 2 months of outdoor use, the products will change from colorless and transparent to orange, which will affect the thermoplastic polyurethane elastomer. usage of. [0003] CN106543400A discloses a highly transparent and non-yellowing TPU material, which includes the following raw materials in parts by weight: 15-50 parts of aliphatic di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L75/08C08K5/3435C08K5/3492C08J5/18C08G18/48
CPCC08J5/18C08G18/4808C08G18/4825C08G18/4854C08J2375/08C08K5/3435C08K5/3492
Inventor 王一良杨博何建雄
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH