High-mechanical-strength GO/TPU (Graphene Oxide/Thermoplastic Polyurethane) in-situ polymerization method

A technology of mechanical strength and in-situ polymerization, applied in the field of in-situ polymerization of high mechanical strength GO/TPU, can solve the problems of poor dispersion of graphene oxide, achieve performance improvement, increase elongation at break, and avoid the lack of reaction degree Effect

Active Publication Date: 2018-11-23
福建威鹏实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to address the disadvantages that the existing TPU synthesis method cannot obtain higher mechanical strength TPU under the condition of less graphene oxide addition and graphene oxide is poorly dispersed in polymer materials, and proposes a high-strength Mechanical strength GO / TPU in situ polymerization method

Method used

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  • High-mechanical-strength GO/TPU (Graphene Oxide/Thermoplastic Polyurethane) in-situ polymerization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of high mechanical strength GO / TPU in-situ polymerization method, the raw material of described GO / TPU comprises by weight parts:

[0030] 0.05 parts of graphene oxide (graphene oxide accounts for the percentage of TPU mass);

[0031] Polypropylene glycol-4000 60.0 parts;

[0032] 27.4 parts of toluene diisocyanate;

[0033] 1,4-butanediol 12.6 parts.

[0034] The polypropylene glycol-4000 is a colorless transparent oily viscous liquid, the hydroxyl value is 26-30 mg KOH / g, the molecular weight is 3700-4300, and the acid value is less than 0.5 mgKOH / g.

[0035] Described toluene diisocyanate is TDI-80, namely 80% toluene-2,4-diisocyanate (2,4-TDI) and 20% toluene-2,6-diisocyanate (2,6-TDI), acidity 0.004% Below, colorless to light yellow transparent liquid, molecular weight 174.16.

[0036] The 1,4-butanediol is a colorless viscous oily liquid with a molecular weight of 90.12 and a hydroxyl value of 1000-1200 mg KOH / g.

[0037]The graphene oxide is sequentia...

Embodiment 2

[0044] A kind of high mechanical strength GO / TPU in-situ polymerization method, the raw material of described GO / TPU comprises by weight parts:

[0045] 0.08 parts of graphene oxide (graphene oxide accounts for the percentage of TPU mass);

[0046] Polypropylene glycol-4000 60.0 parts;

[0047] 27.4 parts of toluene diisocyanate;

[0048] 1,4-butanediol 12.6 parts.

[0049] The polypropylene glycol-4000 is a colorless transparent oily viscous liquid, the hydroxyl value is 26-30 mg KOH / g, the molecular weight is 3700-4300, and the acid value is less than 0.5 mgKOH / g.

[0050] Described toluene diisocyanate is TDI-80, namely 80% toluene-2,4-diisocyanate (2,4-TDI) and 20% toluene-2,6-diisocyanate (2,6-TDI), acidity 0.004% Below, colorless to light yellow transparent liquid, molecular weight 174.16.

[0051] The 1,4-butanediol is a colorless viscous oily liquid with a molecular weight of 90.12 and a hydroxyl value of 1000-1200 mg KOH / g.

[0052] The graphene oxide is sequenti...

Embodiment 3

[0059] A kind of high mechanical strength GO / TPU in-situ polymerization method, the raw material of described GO / TPU comprises by weight parts:

[0060] Graphene oxide 0.1 part (graphene oxide accounts for the percentage of TPU mass);

[0061] Polypropylene glycol-4000 60.0 parts;

[0062] 27.4 parts of toluene diisocyanate;

[0063] 1,4-butanediol 12.6 parts.

[0064] The polypropylene glycol-4000 is a colorless transparent oily viscous liquid, the hydroxyl value is 26-30 mg KOH / g, the molecular weight is 3700-4300, and the acid value is less than 0.5 mgKOH / g.

[0065] Described toluene diisocyanate is TDI-80, namely 80% toluene-2,4-diisocyanate (2,4-TDI) and 20% toluene-2,6-diisocyanate (2,6-TDI), acidity 0.004% Below, colorless to light yellow transparent liquid, molecular weight 174.16.

[0066] The 1,4-butanediol is a colorless viscous oily liquid with a molecular weight of 90.12 and a hydroxyl value of 1000-1200 mg KOH / g.

[0067] The graphene oxide is sequentially ...

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Abstract

The invention belongs to the technical field of synthesis of high molecular composite materials and in particular relates to a high-mechanical-strength GO / TPU (Graphene Oxide / Thermoplastic Polyurethane) in-situ polymerization method. A specific implementation technology of the in-situ polymerization method comprises the following steps: taking graphene oxide, polypropylene glycol-4000, toluene diisocyanate and 1,4-butylene glycol as raw materials; after carrying out modification on the graphene oxide by adopting glacial acetic acid and didecyldimethylammonium bromide, combining with the polypropylene glycol-4000 to form a modified graphene oxide / polypropylene glycol-4000 mixture; then carrying out in-situ polymerization on the mixture, the toluene diisocyanate and the 1,4-butylene glycol to obtain high-mechanical-strength GO / TPU. A GO / TPU material prepared by the method has excellent mechanical strength and can become a substitute with more excellent performance in the fields includinga mechanical industry and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer composite material synthesis, and in particular relates to a high mechanical strength GO / TPU in-situ polymerization method. Background technique [0002] Polymer materials have been widely used in various fields due to their good performance, especially in the fields that require many structural materials such as the machinery industry. It has become a research hotspot in the field of materials to replace metal, wood, ceramics, etc. with polymer materials with good performance, light weight, and convenient processing. High-molecular materials with high mechanical strength broaden the selection range of materials, and gradually complete the transformation of traditional mechanical products from high consumption and high quality to light, corrosion-resistant and low-cost. [0003] Thermoplastic polyurethane elastomer, referred to as TPU, also known as PU thermoplastic, is a linear block copolymer c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/32C08K9/04C08K3/04
CPCC08G18/48C08G18/6674C08G18/7614C08K3/042C08K9/04
Inventor 郑玉婴张钊滟
Owner 福建威鹏实业有限公司
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