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A γ-type polyvinylidene fluoride/polybutylene adipate composite material and preparation method thereof

A technology of polybutylene adipate and polyvinylidene fluoride, which is applied in the field of polymer material preparation, can solve the problems of unfavorable standardized production and industrial application, complex preparation process, and various methods involved, and achieve excellent biocompatibility Sexuality, wide application, and excellent biodegradability

Active Publication Date: 2020-10-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These preparation processes are complicated and involve various methods, which are not conducive to unified standardized production and industrial application, and can only provide theoretical and technical basis, and there are still many restrictions in the future application field.

Method used

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  • A γ-type polyvinylidene fluoride/polybutylene adipate composite material and preparation method thereof
  • A γ-type polyvinylidene fluoride/polybutylene adipate composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of polyvinylidene fluoride / polybutylene adipate composite material, comprising the following steps:

[0024] 1) Weigh PVDF=0.15g, put it into a 10ml volumetric flask, and mark it as No. 1;

[0025] 2) Weigh PBA=0.35g, put it in No. 1 in step 1), use PVDF and PBA good solvent N,N-dimethylformamide to make up to 10ml, add magnetic stirring rotor at room temperature and magnetically stir for 30min, Make PVDF and PBA dissolve completely, in triplicate, obtain the blend solution that the content of PVDF and PBA is 30wt%;

[0026] 3) The PVDF / PBA solution prepared in step 2) is casted by the solution casting method to obtain a film with a uniform thickness. ℃ vacuum drying for 6 hours;

[0027] 4) Put the composite film prepared in step 3) into a constant temperature heating platform at 200°C, and incubate at a constant temperature for 10 minutes to ensure that the polymer film is fully melted to eliminate the thermal history;

[0028] 5) Rapidly lower...

Embodiment 2

[0031] A preparation method of polyvinylidene fluoride / polybutylene adipate composite material, comprising the following steps:

[0032] 1) Weigh PVDF=0.25g, put it into a 10ml volumetric flask, and mark it as No. 2;

[0033] 2) Weigh PBA=0.25g, put it in No. 2 in step 1), use PVDF and PBA good solvent N,N-dimethylformamide to make up to 10ml, add a magnetic stirring rotor at room temperature and magnetically stir for 30min, Make PVDF and PBA dissolve completely, obtain the blend solution that the content of PVDF and PBA is 50wt%;

[0034] 3) The PVDF / PBA solution prepared in step 2) is casted by the solution casting method to obtain a film with a uniform thickness. ℃ vacuum drying for 6 hours;

[0035] 4) Put the composite film prepared in step 3) into a constant temperature heating platform at 200°C, and incubate at a constant temperature for 10 minutes to ensure that the polymer film is fully melted to eliminate the thermal history;

[0036] 5) Rapidly lower the culture ...

Embodiment 3

[0039] A preparation method of polyvinylidene fluoride / polybutylene adipate composite material, comprising the following steps:

[0040] 1) Weigh PVDF=0.35g, put it into a 10ml volumetric flask, and mark it as No. 3;

[0041]2) Weigh PBA=0.15g, put it in No. 3 of step 1), use PVDF and PBA good solvent N,N-dimethylformamide to make the volume to 10ml, add magnetic stirring rotor at room temperature and magnetically stir for 30min, make PVDF and PBA are completely dissolved to obtain a blend solution in which the content of PVDF and PBA is 70wt%;

[0042] 3) The PVDF / PBA solution prepared in step 2) is casted by the solution casting method to obtain a film with a uniform thickness. ℃ vacuum drying for 6 hours;

[0043] 4) Put the composite film prepared in step 3) into a constant temperature heating platform at 200°C, and incubate at a constant temperature for 10 minutes to ensure that the polymer film is fully melted to eliminate the thermal history;

[0044] 5) Rapidly lowe...

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Abstract

The invention discloses a gamma-type polyvinylidene fluoride / polybutylene adipate composite material. The composite material comprises, by mass, 30% to 70% of polymetafluoroacetic acid PVDF and 30% to70% of polybutylene adipate PBA. The polymetafluoroacetic acid comprises gamma-polymetafluoroacetic acid and may comprises a part of alpha-polymetafluoroacetic acid. A preparation method of the composite material comprises: dissolving polyvinylidene fluoride and polybutylene adipate in a sufficient amount of DMF, preparing a polyvinylidene fluoride / polybutylene adipate composite film after full dissolution, heating to melt the polyvinylidene fluoride / polybutylene adipate composite film to eliminate the heat history, fast cooling the polyvinylidene fluoride / polybutylene adipate composite filmto 155-160 DEG C and carrying out constant temperature culture until complete recrystallization to obtain the gamma-type polyvinylidene fluoride / polybutylene adipate composite material. The preparation method of the composite biodegradable material has simple and scientific processes, a low cost and controllable processes.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a gamma polyvinylidene fluoride / polybutylene adipate composite material and a preparation method thereof. Background technique [0002] In addition to the characteristics of fluororesins and general-purpose resins, polyvinylidene fluoride (PVDF) also has electrical properties such as piezoelectricity, dielectricity, and pyroelectricity, which has attracted widespread attention in the field of material science. The diverse performance of PVDF is closely related to its complex and variable crystal structure, and various crystals can transform into each other under certain conditions, so in-depth research on the various crystal structures of PVDF and their interactions It has important theoretical significance and practical application value to explore the influence of different crystal structures on the properties of mutual transformation mechanism ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08L67/02C08J5/18
CPCC08J5/18C08J2327/16C08J2367/02C08J2427/16C08J2467/02
Inventor 王海军刘坤
Owner SHAANXI UNIV OF SCI & TECH
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