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High-thermal-conductivity low-abrasion TPU material and preparation method thereof

A low-wear, high thermal conductivity technology, applied in the field of thermoplastic polyurethane elastomers, can solve the problems of material thermal conductivity, mechanics, wear resistance and other properties that cannot be taken into account at the same time, affect the overall performance of the material, affect the stability of the material and other problems, so as to solve the problem of wear and tear. The effect of fast, enhanced force, and improved wear resistance

Pending Publication Date: 2022-01-14
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the total amount of thermally conductive fillers added accounts for 65% of the TPU. High-dose thermally conductive powders have problems such as compatibility, dispersion, and interface in the TPU matrix, and may volatilize and migrate, affecting the stability of the material.
At the same time, this method is prepared by mixing TPU particles with thermally conductive fillers. TPU undergoes secondary processing, which affects the overall performance of the material, so that the thermal conductivity, mechanics, wear resistance and other properties of the material cannot be taken into account at the same time.

Method used

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  • High-thermal-conductivity low-abrasion TPU material and preparation method thereof
  • High-thermal-conductivity low-abrasion TPU material and preparation method thereof
  • High-thermal-conductivity low-abrasion TPU material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A TPU material with high thermal conductivity and low wear, made of the following raw materials in mass percentage:

[0032] Polyethylene adipate-1,2-propylene glycol ester diol (M=3000): 47.75%,

[0033] 4,4'-Diphenylmethane diisocyanate (MDI-100): 20.85%,

[0034] 1,4-butanediol (BDO): 5.94%,

[0035] Trimethylolpropane (TMP): 0.06%,

[0036] Stearic acid amide: 0.2%,

[0037] Ethylene bis-stearamide: 0.2%,

[0038] Modified nano-AlN particles: 25%,

[0039] Wherein, the consumption of catalyst stannous octoate (T-9) is 0.04% of the total mass of the raw materials used above.

[0040] The preparation method is: add polyethylene adipate-1,2-propylene glycol ester diol (M=3000), stearic acid amide, ethylene bisstearic acid amide, stannous octoate (T-9) into In reactor A with mechanical stirring and temperature control system, set the temperature to 100°C and stir; place MDI-100 in reactor B, set the temperature to 65°C; place BDO and TMP in reactor C , set the te...

Embodiment 2

[0042]A TPU material with high thermal conductivity and low wear, made of the following raw materials in mass percentage:

[0043] Polyadipate-1,4-butylene glycol ester diol (M=2000): 46.28%,

[0044] 4,4'-Diphenylmethane diisocyanate (MDI-100): 26.18%,

[0045] 1,4-butanediol (BDO): 7.12%,

[0046] Trimethylolpropane (TMP): 0.22%,

[0047] E wax: 0.2%,

[0048] Modified nano-AlN particles: 20%,

[0049] Wherein, the consumption of catalyst stannous octoate (T-9) is 0.06% of the total mass of the raw materials used above.

[0050] The preparation method is: add polyadipate-1,4-butylene glycol ester diol (M=2000), E wax, stannous octoate (T-9) into reaction kettle A with mechanical stirring and temperature control system , set the temperature at 105°C and stir; put MDI-100 in reactor B, set the temperature at 60°C; place BDO and TMP in reactor C, and set the temperature at 70°C. After the materials in each reactor are stirred evenly and the temperature is stable, through ...

Embodiment 3

[0052] A TPU material with high thermal conductivity and low wear, made of the following raw materials in mass percentage:

[0053] Polyethylene adipate-1,4-butylene glycol ester diol (M=1000): 42.31%,

[0054] 4,4'-Diphenylmethane diisocyanate (MDI-100): 33.59%,

[0055] 1,4-butanediol (BDO): 8.36%,

[0056] Trimethylolpropane (TMP): 0.44%,

[0057] Pentaerythritol Stearate: 0.2%,

[0058] Oleamide: 0.1%,

[0059] Modified nano-AlN particles: 15%,

[0060] Wherein, the dosage of the catalyst bismuth neodecanoate (C83) is 0.1% of the total mass of the raw materials used above.

[0061] The preparation method is: polyethylene adipate-1,4-butylene glycol ester diol (M=1000), pentaerythritol stearate, 10 g of oleic acid amide, and bismuth neodecanoate (C83) are added to In reactor A with mechanical stirring and temperature control system, set the temperature at 95°C and stir; place MDI-100 in reactor B, set the temperature at 55°C; place BDO and TMP in reactor C , set the ...

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Abstract

The invention belongs to the technical field of thermoplastic polyurethane elastomers, and particularly relates to a high-thermal-conductivity low-abrasion TPU material and a preparation method thereof. The TPU material is prepared by adding a catalyst into the following raw materials in percentage by mass: 30.5-66.9% of polyester polyol, 18-34% of diisocyanate, 5-10% of small molecular alcohol, 0.1-0.5% of a lubricant and 10-25% of modified nano AlN, the use amount of the catalyst is 0.04-0.1% of the total mass of the raw materials, the modified nano AlN is copper chloride modified aluminum nitride, and the small molecular alcohol is composed of a chain extender and a cross-linking agent. The TPU material prepared by the invention has a micro-crosslinking structure, so that the thermal conductivity and the abrasion resistance of the TPU material are improved; and the preparation method adopts one-step synthesis, is simple and easy to operate, and is scientific and reasonable.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic polyurethane elastomers, and in particular relates to a TPU material with high thermal conductivity and low wear and a preparation method thereof. Background technique [0002] Polyurethane refers to a class of polymer materials containing repeated carbamate groups in the main chain of the molecule. It is a typical (AB) n A block linear polymer consisting of alternating soft and hard segments to form repeating structural units. Due to its special molecular structure, it has excellent physical and mechanical properties such as high modulus, high strength, high elongation, high elasticity and high wear resistance, and is widely used in sheet materials, shoe materials, automobiles, cables, medical treatment, films and many other fields. However, the pure TPU material is a poor conductor of heat. In some special fields such as wires and cables, electronic appliances, etc., it cannot meet the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/32C08G18/42C08K3/16C08K3/28C08K9/04C08L75/06
CPCC08G18/664C08G18/4238C08G18/3206C08K9/04C08K3/28C08K3/16C08K2003/282C08K2201/005C08L75/06
Inventor 刘永成管永罗杰马超董良苟卓
Owner SHANDONG INOV POLYURETHANE
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