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Preparing method of polyadipic acid butanediol ester-terminal hydroxyl multiwalled carbon nanotube composite film

A technology of polybutylene adipate and multi-walled carbon nanotubes, which is applied in the field of preparation of polybutylene adipate-hydroxyl-terminated multi-walled carbon nanotubes composite films, can solve the problem of slow crystallization speed, poor It can effectively realize the control of PBA crystal form and the poor hardness of PBA.

Active Publication Date: 2016-05-25
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The methods that have appeared so far cannot effectively realize the crystal form control of PBA, and have no good impact on the shortcomings of PBA such as poor hardness and slow crystallization speed, so there are considerable limitations in application.

Method used

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  • Preparing method of polyadipic acid butanediol ester-terminal hydroxyl multiwalled carbon nanotube composite film
  • Preparing method of polyadipic acid butanediol ester-terminal hydroxyl multiwalled carbon nanotube composite film
  • Preparing method of polyadipic acid butanediol ester-terminal hydroxyl multiwalled carbon nanotube composite film

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Experimental program
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Embodiment 1

[0024] A preparation method of degradable polybutylene adipate-terminated hydroxyl multi-walled carbon nanotube composite film, comprising the following steps:

[0025] 1) Weigh PBA=0.5g, put it in a clean 10ml volumetric flask, and add in duplicate, chloroform, a good solvent for PBA, to 10ml, and place it on a magnetic stirrer at room temperature for 2 hours to fully dissolve the PBA. ;

[0026] 2) Weigh 0.0005g and 0.001g of vacuum-dried MWCNTs-OH respectively, put them in two 10ml volumetric flasks, and dilute to 10ml with chloroform, and stir the obtained MWCNTs-OH chloroform solution on a constant temperature magnetic stirrer 30min, and then ultrasonically disperse in an ultrasonic instrument at room temperature for 1h to obtain a uniformly dispersed MWCNTs-OH trichloromethane suspension;

[0027] 3) Blend the prepared PBA solution and MWCNTs-OH solution, stir on a magnetic stirrer at room temperature for 30 minutes, and then ultrasonically disperse at room temperature ...

Embodiment 2

[0030] A preparation method of degradable polybutylene adipate-terminated hydroxyl multi-walled carbon nanotube functional composite film material, comprising the following steps:

[0031] 1) Weigh PBA=0.5g, put it in a clean 10ml volumetric flask, and add in duplicate, chloroform, a good solvent for PBA, to 10ml, and place it on a magnetic stirrer at room temperature for 3 hours to fully dissolve the PBA. ;

[0032] 2) Weigh 0.0005g and 0.001g of vacuum-dried MWCNTs-OH respectively, put them in two 10ml volumetric flasks, and dilute to 10ml with chloroform, and stir the obtained MWCNTs-OH chloroform solution on a constant temperature magnetic stirrer 30min, and then ultrasonically disperse in an ultrasonic instrument at room temperature for 1h to obtain a uniformly dispersed MWCNTs-OH trichloromethane suspension;

[0033] 3) Blend the prepared PBA solution and MWCNTs-OH solution, stir on a magnetic stirrer at room temperature for 30 minutes, and then ultrasonically disperse ...

Embodiment 3

[0036] A preparation method of degradable polybutylene adipate-terminated hydroxyl multi-walled carbon nanotube functional composite film material, comprising the following steps:

[0037] 1) Weigh PBA=0.5g, put it in a clean 10ml volumetric flask, and add the good solvent chloroform of PBA in duplicate, set the volume to 10ml, put it on a magnetic stirrer at room temperature and magnetically stir for 2.5h, so that the PBA is fully dissolve;

[0038] 2) Weigh 0.0005g and 0.001g of vacuum-dried MWCNTs-OH respectively, put them in two 10ml volumetric flasks, and dilute to 10ml with chloroform, and stir the obtained MWCNTs-OH chloroform solution on a constant temperature magnetic stirrer 30min, and then ultrasonically disperse in an ultrasonic instrument at room temperature for 1h to obtain a uniformly dispersed MWCNTs-OH trichloromethane suspension.

[0039] 3) Blend the prepared PBA solution and MWCNTs-OH solution, stir on a magnetic stirrer at room temperature for 30 minutes,...

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Abstract

A preparing method of a polyadipic acid butanediol ester-terminal hydroxyl multiwalled carbon nanotube composite film comprises the steps: (1) weighing 0.5g of PBA, placing in a volumetric flask, dividing into two parts, and adding good solvent chloroform of PBA respectively to fully dissolve the PBA; (2) weighing MWCNTs-OH subjected to vacuum drying treatment, placing in two bottles and determining the volume with chloroform to obtain MWCNTs-OH trichloromethane turbid liquid; (3) blending the PBA solution with the MWCNTs-OH solution to prepare the PBA / MWCNTs-OH blended film casting liquid; (4) preparing the PBA / MWCNTs-OH blended film casting liquid into a composite film at normal temperature, standing and melting the PBA / MWCNTs-OH composite film to remove a thermal history, annealing and crystallizing for culture to obtain the PBA / MWCNTs-OH composite film material. The process method is simple, can be applied to industrial production and has broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of degradable materials, in particular to a preparation method of a polybutylene adipate-terminated hydroxyl multi-walled carbon nanotube composite film. Background technique [0002] Polybutylene adipate (PBA) is a typical linear aliphatic polyester. Its macromolecular chain has excellent crystallization performance and complex and changeable crystallization conditions. It also has good biodegradability and is widely used in global pollution. The growing problem is receiving a lot of attention today. [0003] The crystallization of PBA changes with the crystallization conditions. Obviously, the α or β crystal forms are differently generated due to the different crystallization temperatures. This may be due to the different dynamics provided by the supercooling during crystallization. The torsional reunion of the chains changes. Among them, high temperature is conducive to the formation of α crystal form, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L67/02C08K9/04C08K7/24
CPCC08J5/18C08J2367/02C08K7/24C08K9/04C08L67/02C08L2203/16
Inventor 王海军阮潇潇李金祥高治进王帅毅李镇伟
Owner SHAANXI UNIV OF SCI & TECH
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