Modified TPU (thermoplastic polyurethane) material and manufacturing method thereof

A production method and modification technology are applied in the field of modified TPU materials and their production to achieve the effects of good elasticity, strong regeneration and health protection

Active Publication Date: 2016-08-17
HEYE HEALTH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are more and more products made of TPU materials on the market, but most of them only have the original characteristics of TPU and cannot meet the needs of the market well. Modification of materials, such as the preparation method of highly flame-retardant and environmentally friendly thermoplastic polyurethane elastomer disclosed in the application publication number CN103665829A (2014-03-26), the prepared elastomer maintains excellent low temperature resistance, flexibility and hydrolysis resistance, And the compound halogen-free flame retardant is used, which greatly guarantees the excellent performance of the elastomer itself. Even if it burns in a fire, it will not produce harmful gas to the environment. It can be widely used in cable sheaths, auto parts and oil transportation soft Tubes and other fields, but this TPU material can not be well used in household and other fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Adopt formula one to prepare a kind of modified TPU material, its preparation method is as follows:

[0059] (1) Add polyester polyol and diisocyanate into the reaction kettle, heat to 80°C, start stirring after melting;

[0060] (2) After the materials in step (1) are completely mixed, add diol and keep warm for 0.5h;

[0061] (3) Lower the temperature of the reactor by 60°C for the first time, and add cell opening agent, polyurethane foaming agent, and chain extender, stir evenly, and then keep warm for 0.5h;

[0062] (4) Vacuumize the reactor, the vacuum time is 10min, the pressure is -0.08MPa, and then the temperature is lowered to below 50°C for the second time, and then the material is discharged;

[0063] (5) Send the materials released in step (4) into the internal mixer for mixing, and set the temperature of the internal mixer at 115°C, then add magnetic powder, mix evenly, and obtain a mixture;

[0064] (6) Send the mixture in step (5) into the plasticizing ...

Embodiment 2

[0074] Adopt formula two to prepare a kind of modified TPU material, its preparation method is as follows:

[0075] (1) Add polyester polyol and diisocyanate into the reaction kettle, heat to 110°C, start stirring after melting;

[0076] (2) After the materials in step (1) are completely mixed, add diol and keep warm for 1 hour;

[0077] (3) Lower the temperature of the reactor to 80°C for the first time, and add cell opening agent, polyurethane foaming agent, and chain extender, stir evenly, and then keep warm for 1.5h;

[0078] (4) Vacuumize the reactor, the vacuum time is 45 minutes, the pressure is -0.09MPa, and then the temperature is lowered for the second time, the temperature drops below 50°C, and then the material is discharged;

[0079] (5) Put the material discharged in step (4) into the internal mixer for mixing, and set the temperature of the internal mixer at 130°C, then add magnetic powder, mix evenly, and obtain a mixture;

[0080] (6) Send the mixture in ste...

Embodiment 3

[0090] Adopt formula three to prepare a kind of modified TPU material, its preparation method is as follows:

[0091] (1) Add polyester polyol and diisocyanate into the reaction kettle, heat to 100°C, start stirring after melting;

[0092] (2) After the materials in step (1) are completely mixed, add glycol, and then keep warm for 0.8h;

[0093] (3) Lower the temperature of the reactor to 70°C for the first time, and add cell opening agent, polyurethane foaming agent, and chain extender, stir evenly, and then keep warm for 1 hour;

[0094] (4) Vacuumize the reactor, the vacuum time is 25 minutes, the pressure is -0.085MPa, and then the second cooling is performed, the temperature drops below 50°C, and then the material is discharged;

[0095] (5) Put the materials released in step (4) into an internal mixer for mixing, and set the temperature of the internal mixer at 125°C, then add magnetic powder and mix evenly to obtain a mixture;

[0096] (6) Send the mixture in step (5)...

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PUM

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Abstract

The invention relates to a modified TPU (thermoplastic polyurethane) material which comprises the following components in parts by weight: 30-130 parts of polyester polyol, 30-110 parts of diisocyanate, 8-45 parts of dibasic alcohol, 3-11 parts of perforating agent, 5-15 parts of polyurethane foaming agent, 3-11 parts of chain extender and 20-110 parts of magnetic powder. The invention provides a modified TPU material and a manufacturing method thereof. The modified TPU material has the properties in the traditional TPU, and also has the function of magnetic therapy. The manufacturing method is simple and convenient to operate, can easily obtain the product, and thus, is applicable to the fields of home furnishing and the like.

Description

technical field [0001] The invention relates to the field of TPU materials, in particular to a modified TPU material and a manufacturing method thereof. Background technique [0002] TPU (Thermoplastic polyurethanes) is called thermoplastic polyurethane elastomer rubber. It is mainly divided into polyester type and polyether type. It has the characteristics of wide range of hardness, wear resistance, oil resistance, transparency and good elasticity. It is widely used in daily necessities, sporting goods, toys, decorative materials and other fields, and has no Halogen flame retardant TPU can also replace soft PVC to meet environmental protection requirements in more and more fields. At present, there are more and more products made of TPU materials on the market, but most of them only have the original characteristics of TPU and cannot meet the needs of the market well. Modification of materials, such as the preparation method of highly flame-retardant and environmentally f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/32C08G18/12C08K3/08C08K3/22
CPCC08G18/12C08G18/42C08G18/664C08G2101/00C08K3/08C08K3/22C08G18/3206C08G18/2805C08G18/3814C08G18/3275C08G18/3215
Inventor 胡立江李俊刘小勇
Owner HEYE HEALTH TECH CO LTD
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