TPU thin film with light reflection and thermal insulation functions and preparation method thereof

A film and functional technology, applied in the field of TPU film and its preparation, to achieve the effect of strong reflective performance

Inactive Publication Date: 2016-08-24
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the performance of thermoplastic polyurethane elastomers currently used is still insufficient, mainly in the aspect of heat insulation and reflection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Poly-1,4-butylene adipate (number-average molecular mass is 3200) 100kg, 1,6-hexanediisocyanate 21kg, 1,6-hexanediol 25kg, molybdenum disulfide micropowder 2kg, white Carbon black 3kg, manganese oxide modified diatomite powder 3kg, dibutyl phthalate 2kg, titanate coupling agent 1kg, talc powder 1kg and sepiolite 1kg were mixed, and TPU was prepared by one-step bulk polymerization The granules are extruded by a twin-screw extruder, and then the TPU film is prepared by using a single-screw extruder by blown film method or cast film forming technology.

[0033] According to the standards of GB / T9757-2001 and JG / T235-2008, after testing, its resistance to artificial weathering is as follows: no air bubbles, no peeling, no cracks, powder 0 grade, discoloration 0 grade; solar reflectance ( white) is 0.88; the hemispherical emissivity is 0.88; the temperature difference decay of heat insulation is 12°C;

Embodiment 2

[0035] Poly-1,4-butylene adipate (number-average molecular mass is 3200) 80kg, 1,6-hexanediisocyanate 25kg, 1,6-hexanediol 20kg, molybdenum disulfide micropowder 1kg, white Carbon black 3kg, manganese oxide modified diatomite powder 2kg, dibutyl phthalate 3kg, titanate coupling agent 0.5kg, talcum powder 2kg and sepiolite 1kg are mixed and prepared by one-step bulk polymerization The TPU particles are extruded by a twin-screw extruder, and then the TPU film is prepared by using a single-screw extruder by blown film method or cast film forming technology.

[0036] According to the standards of GB / T9757-2001 and JG / T235-2008, after testing, its resistance to artificial weathering is as follows: no air bubbles, no peeling, no cracks, powder 0 grade, discoloration 0 grade; sunlight reflectance ( White) is 0.85; the hemispherical emissivity is 0.85; the temperature difference attenuation of heat insulation is 12°C;

Embodiment 3

[0038]Poly-1,4-butylene adipate (number-average molecular mass is 3000) 100kg, 1,6-hexanediisocyanate 30kg, 1,6-hexanediol 20kg, molybdenum disulfide micropowder 2kg, white Carbon black 3kg, manganese oxide modified diatomite powder 3kg, dibutyl phthalate 2kg, titanate coupling agent 1kg, talcum powder 2kg and sepiolite 2kg are mixed, and TPU is prepared by one-step bulk polymerization The granules are extruded by a twin-screw extruder, and then the TPU film is prepared by using a single-screw extruder by blown film method or cast film forming technology.

[0039] According to the standards of GB / T9757-2001 and JG / T235-2008, after testing, its resistance to artificial weathering is as follows: no air bubbles, no peeling, no cracks, powder 0 grade, discoloration 0 grade; solar reflectance ( White) is 0.86; the hemispherical emissivity is 0.85; the temperature difference decay of heat insulation is 12°C;

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PUM

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Abstract

The invention relates to a TPU thin film with light reflection and thermal insulation functions and a preparation method thereof. The TPU thin film is prepared from, by weight, 50-100 parts of polyester glycol, 15-30 parts of diisocyanate, 5-35 parts of a chain extender, 1-5 parts of molybdenum disulfide micro powder, 1-5 parts of white carbon black, 2-5 parts of metal oxide-modified diatomaceous earth powder, 2-5 parts of dibutyl phthalate, 0.5-1 parts of a titanate coupling agent, 1-5 parts of talcum powder and 1-5 parts of sepiolite. The TPU thin film has the excellent light reflection and thermal insulation functions.

Description

technical field [0001] The invention relates to the field of polyurethane materials, in particular to a TPU film with light-reflecting and heat-insulating functions and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (also known as TPU) new material is called "epoch-making new polymer material". It is one of the six most promising synthetic materials in the world. It has both the elasticity of rubber and the hardness of plastic. It also has good mechanical properties, wear resistance and resilience, so it has been widely used. [0003] However, the performance of the thermoplastic polyurethane elastomer currently used is still insufficient, mainly in the aspect of heat insulation and light reflection. Therefore, the development of thermoplastic polyurethane elastomers with reflective and heat-insulating functions has far-reaching social benefits and obvious economic benefits. Contents of the invention [0004] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/48C08G18/32C08K13/06C08K3/36C08K9/02C08K3/34C08K5/12C08K3/30C08L75/06C08L75/08
CPCC08G18/664C08G18/3206C08G18/4238C08G18/4277C08G18/4854C08G18/6674C08J5/18C08J2375/06C08J2375/08C08K3/30C08K3/34C08K3/346C08K3/36C08K5/12C08K9/02C08K13/06C08K2003/3009C08K2201/014C08L75/06C08L75/08C08L2203/16
Inventor 何建雄王一良
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH
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