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Low-permeability TPU film for automobile headrest and preparation method of low-permeability TPU film

A technology for automobile headrests and films, which is applied in the field of low-permeability TPU films for automobile headrests and its preparation. It can solve the problems of increasing the hydrophobicity of TPU films, the barrier effect of water vapor and oxygen, poor barrier properties of TPU films, and the decline of mechanical properties of TPU films. problems, to achieve good mechanical properties, low water vapor transmission rate, and reduce the transmission rate

Active Publication Date: 2021-01-05
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the barrier properties of TPU films to oxygen and other small molecules are not good, and simply adding fillers to improve the barrier properties of TPU films will lead to a decline in mechanical properties, so How to obtain composite materials with excellent barrier properties and high mechanical strength through modification is the research focus
[0004] CN106883565A discloses a high-barrier composite film, including three composite structural layers of an outer layer, a barrier layer and an inner layer, and the coating includes the following percentages of Components: PA 75-80%, nano-silica sol 20-25%, the barrier layer is made of the following components: PET 30-60%, PEN8-18%, nano-modified montmorillonite soil 30-60%, the inner layer is made of the following components: PE30-60%, PP 30-55%, nucleating agent 24%, compatibilizer 5-15%, the composite film has Good barrier performance, but its barrier performance still needs to be improved
In the present invention, the carbon nanofibers modified by the food preservative are mixed into the TPU film, and the carbon nanofibers and the preservatives produce a synergistic antibacterial effect, delaying food deterioration, and the carbon nanofibers are dispersed in the TPU film to form an interwoven network structure, increasing the The hydrophobicity of the TPU film and the barrier effect on water vapor and oxygen, but its barrier performance still needs to be improved

Method used

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  • Low-permeability TPU film for automobile headrest and preparation method of low-permeability TPU film
  • Low-permeability TPU film for automobile headrest and preparation method of low-permeability TPU film
  • Low-permeability TPU film for automobile headrest and preparation method of low-permeability TPU film

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Experimental program
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Embodiment 1

[0051] This embodiment provides a low-permeability TPU film for automobile headrests, including a laminated TPU film layer and a water vapor barrier layer; the thickness of the TPU film layer is 500 μm, and the thickness of the water vapor barrier layer is 30 μm.

[0052] Wherein, the TPU film layer comprises the following components by weight:

[0053]

[0054] Wherein, the data molecular weight of polyether polyol is 2000, and polyether polyol is the combination of polyoxypropylene diol (Jiangsu Sanmu Chemical Industry, N210) and polytetrahydrofuran diol (German BASF, Poly THF 2000), polyoxypropylene diol and The mass ratio of polytetrahydrofuran diol is 3:1; Aliphatic diisocyanate is isophorone diisocyanate (German Evonik Vestanat IPDI) and cyclohexane dimethylene diisocyanate (Japan Mitsui Takeda Chemical Co., Ltd., Takenate600) The combination, the mass ratio of isophorone diisocyanate and cyclohexane dimethylene diisocyanate is 8:1; Acrylic acid derivative is hydroxye...

Embodiment 2

[0060] This embodiment provides a low-permeability TPU film for automobile headrests, including a laminated TPU film layer and a water vapor barrier layer; the thickness of the TPU film layer is 1000 μm, and the thickness of the water vapor barrier layer is 40 μm.

[0061] Wherein, the TPU film layer comprises the following components by weight:

[0062]

[0063] Wherein, the data molecular weight of polyether polyol is 1000, and polyether polyol is the combination of polyoxypropylene diol (Jiangsu Sanmu Chemical Industry, N210) and polytetrahydrofuran diol (German BASF, Poly THF 2000), polyoxypropylene diol and The mass ratio of polytetrahydrofuran diol is 2:1; Aliphatic diisocyanate is isophorone diisocyanate (German Evonik Vestanat IPDI) and cyclohexane dimethylene diisocyanate (Japan Mitsui Takeda Chemical Co., Ltd., Takenate600) The combination, the mass ratio of isophorone diisocyanate and cyclohexane dimethylene diisocyanate is 10:1; Acrylic acid derivative is hydrox...

Embodiment 3

[0069] This embodiment provides a low-permeability TPU film for automobile headrests, including a laminated TPU film layer and a water vapor barrier layer; the thickness of the TPU film layer is 100 μm, and the thickness of the water vapor barrier layer is 10 μm.

[0070] Wherein, the TPU film layer comprises the following components by weight:

[0071]

[0072] Wherein, the data molecular weight of polyether polyol is 3000, and polyether polyol is the combination of polyoxypropylene diol (Jiangsu Sanmu Chemical Industry, N210) and polytetrahydrofuran diol (German BASF, Poly THF 2000), polyoxypropylene diol and The mass ratio of polytetrahydrofuran diol is 5:1; Aliphatic diisocyanate is isophorone diisocyanate (German Evonik Vestanat IPDI) and cyclohexane dimethylene diisocyanate (Japan Mitsui Takeda Chemical Co., Ltd., Takenate600) The combination, the mass ratio of isophorone diisocyanate and cyclohexane dimethylene diisocyanate is 5:1; The acrylic acid derivative is hydr...

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Abstract

The invention provides a low-permeability TPU film for an automobile headrest and a preparation method of the low-permeability TPU film. The low-permeability TPU film for the automobile headrest comprises a TPU film layer and a water vapor barrier layer which are laminated, wherein the water vapor barrier layer comprises layered silicate minerals and synthetic resin; and the TPU film layer is prepared from the following components in parts by weight: 10-20 parts of polyether polyol, 60-80 parts of aliphatic diisocyanate, 10-20 parts of an acrylic acid derivative, 1-4 parts of a catalyst and 1-5 parts of a chain extender. On the premise that the TPU film for the automobile headrest has good mechanical performance, the TPU film for the automobile headrest further has low water vapor permeability and oxygen permeability; and the preparation method of the TPU film for the automobile headrest is simple, raw materials are easy to obtain, the price is low, and the implementation is convenient.

Description

technical field [0001] The invention belongs to the field of films, and in particular relates to a low-permeability TPU film for automobile headrests and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is a kind of heat-plasticized and soluble polyurethane material, which has a unique structure of soft and hard block copolymers. It is widely used because it has both the elasticity of rubber and the processability of plastic It is used in many fields, such as: exterior parts of automobile body, cable sheath, adhesive tape, ski boots, gear, rubber hose, clothing fabric, inflatable products, etc. [0003] However, the barrier properties of TPU films to oxygen and other small molecules are not good. Improving the barrier properties of TPU films simply by adding fillers will lead to a decrease in mechanical properties. Therefore, how to obtain excellent barrier properties and high mechanical strength through modification Com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/048C09D179/08C09D7/61C08G18/75C08G18/67C08G18/66C08G18/48C08G18/12C08L75/14
CPCC08J7/048C08J7/0427C09D179/08C09D7/61C08G18/672C08G18/12C08G18/6674C08G18/722C08G18/755C08G18/758C08G18/4808C08G18/4825C08G18/4854C08J2375/14C08J2479/08C08K3/34C08K3/346
Inventor 何建雄杨博
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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