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Polylactic acid-metal organic framework composite material and preparation method thereof

A metal-organic framework and composite material technology, which is applied in the field of polylactic acid-metal organic framework composite materials and its preparation, can solve the problems of poor dispersion and easy phase separation of MOF materials, and achieve good compatibility and prevent agglomeration or phase separation. The effect of separation, good application prospects

Active Publication Date: 2019-09-13
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a polylactic acid-metal organic framework composite material to solve the problem of poor dispersion of MOF materials in polymer matrix and easy phase separation
[0007] The second object of the present invention is to provide a preparation method of polylactic acid-metal organic framework composite material, to solve the problem of poor dispersion of MOF material in polymer matrix and easy phase separation

Method used

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  • Polylactic acid-metal organic framework composite material and preparation method thereof
  • Polylactic acid-metal organic framework composite material and preparation method thereof
  • Polylactic acid-metal organic framework composite material and preparation method thereof

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Embodiment 1

[0041] The polylactic acid-metal organic framework composite material in this embodiment is formed by bonding the metal organic framework containing amino groups on the surface and the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer through diisocyanate bonding. Wherein, the molecular weight of the polyethylene glycol segment in the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer is 400, and the polymerization degree of the polylactic acid segment is 10 (sample code E 400 L 10 ); the diisocyanate is isophorone diisocyanate; the metal-organic framework containing surface amino groups is Fe-MIL-88B – NH 2 .

Embodiment 2

[0043] The polylactic acid-metal organic framework composite material in this embodiment is formed by bonding the metal organic framework containing amino groups on the surface and the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer through diisocyanate bonding. Wherein, the molecular weight of the polyethylene glycol segment in the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer is 1000, and the polymerization degree of the polylactic acid segment is 40; the diisocyanate is isophorone diisocyanate; The metal-organic framework with amino groups on the surface is Fe-MIL-88B – NH 2 .

Embodiment 3

[0045] The polylactic acid-metal organic framework composite material in this embodiment is formed by bonding the metal organic framework containing amino groups on the surface and the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer through diisocyanate bonding. Wherein, the molecular weight of the polyethylene glycol segment in the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer is 2000, and the polymerization degree of the polylactic acid segment is 40; the diisocyanate is isophorone diisocyanate; The metal-organic framework with amino groups on the surface is Fe-MIL-88B – NH 2 .

[0046] Two, the specific embodiment of the preparation method of the polylactic acid-metal organic framework composite material of the present invention

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Abstract

The invention relates to a polylactic acid-metal organic framework composite material and a preparation method thereof. The polylactic acid-metal organic framework composite is formed by bonding a metal organic framework material containing a surface amino group and a polylactic acid-polyethylene glycol-polylactic acid triblock copolymer through a diisocyanate. The bonded composite material is prepared by reacting the diisocyanate with the amino group and a terminal hydroxyl group (from the polylactic acid segment of the polylactic acid-polyethylene glycol-polylactic acid triblock copolymer),and the composite material combines the respective advantages of the two materials, can be added to a polymer matrix as a functional macromolecular filler, and has the advantages of good dispersion effect, no phase separation, and good compatibility with the polymer matrix.

Description

technical field [0001] The invention belongs to the field of polylactic acid composite materials, in particular to a polylactic acid (PLA)-metal organic framework (MOF) composite material and a preparation method thereof. Background technique [0002] Polylactic acid (PLA) is a non-petroleum-based polymer that has the advantages of high strength, good thermal processability, biodegradability, and good biocompatibility, but has poor toughness, poor heat resistance, low crystallinity, and tear resistance. The disadvantages of poor fracture toughness and lack of functionality limit its practical application fields. [0003] Metal-organic framework (MOF) is an organic-inorganic hybrid material, also known as coordination polymer. Due to many properties such as porosity, large specific surface area, and multi-metal sites, it presents great development potential in gas storage, molecular separation, catalysis, drug sustained release, etc., and is a promising class of porous mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00C08G83/00C08G63/664
CPCC08G63/664C08G81/00C08G83/008
Inventor 方少明李凤彩杨皓然张冰莹周立明吴诗德
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY