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Super-soft TPU membrane for U-shaped pillow and preparation method of super-soft TPU membrane

A film and raw material technology, applied in the field of ultra-soft TPU film for U-shaped pillows and its preparation, can solve the problems of further improvement in waterproof and moisture permeability, achieve good breathability and moisture permeability, enhance softness and breathability and moisture permeability, The effect of good toughness

Inactive Publication Date: 2017-07-25
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The fabrics used in pillows are required to be soft and comfortable, and have good toughness and wear resistance, and in order to be more comfortable, it is hoped to have high waterproof and moisture permeability. Although TPU material has its inherent wear resistance and excellent elastic properties, it is waterproof. Moisture permeability needs to be further improved

Method used

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  • Super-soft TPU membrane for U-shaped pillow and preparation method of super-soft TPU membrane
  • Super-soft TPU membrane for U-shaped pillow and preparation method of super-soft TPU membrane
  • Super-soft TPU membrane for U-shaped pillow and preparation method of super-soft TPU membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this embodiment, the TPU film is prepared from the following raw material components:

[0044]

[0045]Wherein the diisocyanate is a mixture of cyclohexane dimethylene diisocyanate and 1,6-hexamethylene diisocyanate, and the mass ratio of cyclohexane dimethylene diisocyanate and 1,6-hexamethylene diisocyanate is 1:5, so Described polyol is the mixture of polyether polyol and polyester polyol, and the mass ratio of polyether polyol and polyester polyol is 3:1, and the number average molecular weight of described polyol is 1500, and chain extender is ethylene glycol, The catalyst is stannous octoate.

[0046] The preparation method is as follows:

[0047] (1) Add diisocyanate, polyol, chain extender and catalyst into the storage tank, and vacuum dehydrate at 60°C under the pressure of -0.3kPa under the stirring speed of 500r / min;

[0048] (2) Use a vacuum pump to pump and inject each raw material in step (1) into a twin-screw extruder for reaction and granulation....

Embodiment 2

[0051] In this embodiment, the TPU film is prepared from the following raw material components:

[0052]

[0053] Wherein the diisocyanate is a mixture of cyclohexane dimethylene diisocyanate and 1,6-hexamethylene diisocyanate, and the mass ratio of cyclohexane dimethylene diisocyanate and 1,6-hexamethylene diisocyanate is 1:6, so Described polyol is the mixture of polyether polyol and polyester polyol, and the mass ratio of polyether polyol and polyester polyol is 4:1, and the number average molecular weight of described polyol is 2000, and chain extender is ethylene glycol, The catalyst is stannous octoate.

[0054] The preparation method is as follows:

[0055] (1) Add diisocyanate, polyol, chain extender and catalyst into the storage tank, and vacuum dehydrate at 60°C under the pressure of -0.1kPa under the stirring speed of 1000r / min;

[0056] (2) Use a vacuum pump to pump and inject each raw material in step (1) into a twin-screw extruder for reaction and granulatio...

Embodiment 3

[0059] In this embodiment, the TPU film is prepared from the following raw material components:

[0060]

[0061]

[0062] Wherein the diisocyanate is a mixture of cyclohexane dimethylene diisocyanate and 1,6-hexamethylene diisocyanate, and the mass ratio of cyclohexane dimethylene diisocyanate and 1,6-hexamethylene diisocyanate is 1:4, so Described polyol is the mixture of polyether polyol and polyester polyol, the mass ratio of polyether polyol and polyester polyol is 2:1, and the number average molecular weight of described polyol is 2500, and chain extender is 1,3- Propylene glycol, the catalyst is dibutyltin dilaurate.

[0063] The preparation method is as follows:

[0064] (1) Add diisocyanate, polyol, chain extender and catalyst into the storage tank, and vacuum dehydrate at 70°C under the pressure of -0.2kPa under the stirring speed of 800r / min;

[0065] (2) Use a vacuum pump to pump and inject each raw material in step (1) into a twin-screw extruder for reacti...

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Abstract

The invention provides a super-soft TPU membrane for a U-shaped pillow and a preparation method of the super-soft TPU membrane. The super-soft TPU membrane is prepared from the following raw materials: 50-60 parts of diisocyanate, 40-50 parts of polyol, 10-20 parts of polyethylene glycol, 5-10 parts of polytetrahydrofuran glycol, 5-10 parts of a chain extender and 1-3 parts of a catalyst. As for the super-soft TPU membrane provided by the invention, by matching the polyethylene glycol and the polytetrahydrofuran glycol with other components, the tensile strength reaches 39-44MPa, the elongation at break reaches 500-600 percent, the hardness is 45-60A, the water vapor transmission rate reaches up to 8000-10000g / m<2>.24h, and the super-soft TPU membrane has high softness, good toughness and good air and water vapor permeability and is suitable for being used as a material for the U-shaped pillow.

Description

technical field [0001] The invention belongs to the technical field of biomaterials, and relates to a TPU film and a preparation method thereof, in particular to an ultra-soft TPU film for U-shaped pillows and a preparation method thereof. Background technique [0002] TPU (Thermoplastic polyyrethane, thermoplastic polyurethane) is a new type of organic polymer synthetic material with excellent performance, which can replace rubber and soft polyvinyl chloride material PVC. TPU has excellent physical properties, such as wear resistance and resilience, which are better than ordinary polyurethane and PVC, and aging resistance is better than rubber. It can be said to be the most ideal material to replace PVC and PU. [0003] The fabrics used in pillows are required to be soft and comfortable, and have good toughness and wear resistance, and in order to be more comfortable, it is hoped to have high waterproof and moisture permeability. Although TPU material has its inherent wear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/32C08G18/75C08G18/73C08G18/66
CPCC08G18/4854C08G18/3206C08G18/4808C08G18/4833C08G18/6674C08G18/722C08G18/73C08G18/751C08G18/757C08J5/18C08J2375/08
Inventor 何建雄王一良杨博
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH
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