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Biomass-based film material with high strength and toughness and preparation process of film material

A preparation process and biomass technology, applied in the field of preparation of biomass-based membrane materials, can solve problems such as poor mechanical properties and poor compatibility of biomass membrane materials, and achieve the effects of improving rigidity and improving performance

Active Publication Date: 2019-11-12
HUNAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of poor compatibility and poor mechanical properties of biomass membrane materials, and provide a biomass-based membrane material with excellent strength and toughness and certain antibacterial properties

Method used

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  • Biomass-based film material with high strength and toughness and preparation process of film material

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specific Embodiment 2

[0055] A high-strength biomass-based membrane material and its preparation process are characterized in that: the membrane material is made of N-phthalylated chitosan, O-benzoic acid chitosan, norbornane diisocyanate, and vegetable oil-based polyol , 1,2-pentanediol, four-armed polyethylene glycol propionaldehyde, eight-armed hydroxybutyl cage polysilsesquioxane, and ethyl cellulose are used as raw materials for casting into films, and the components of each raw material are The ratios are as follows:

[0056] N-phthalylated chitosan 16.5 parts

[0057] Chitosan O-benzoate 16.5 parts

[0058] Norbornane diisocyanate 9.4 parts

[0059] Vegetable oil-based polyol 5.8 parts

[0060] 1,2-pentanediol 2.2 parts

[0061] Four-arm polyethylene glycol propionaldehyde 5.1 parts

[0062] Eight-armed hydroxybutyl cage polysilsesquioxane 2.4 parts

[0063] Ethyl cellulose 1.8 parts

[0064] The membrane material preparation process is as follows:

[0065] (1) Add N-phthalylated chito...

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Abstract

The invention relates to a biomass-based film material with high strength and toughness and a preparation process of the film material. The film material is prepared by using maleic anhydride modifiedchitosan, o-acylated chitosan, biomass-based 1,4-butane diisocyanate, bio-based 1,6-hexanediol, four-arm polyethylene glycol propionaldehyde and eight-arm hydroxybutyl polyhedral oligomeric silsesquioxane as raw materials through film formation by solution casting. The biomass composite material provided by the invention has a simple processing technology and excellent strength and toughness, canbe degraded, and can be applied to the fields of packaging and industry requiring the high-strength high-toughness film.

Description

technical field [0001] The invention relates to a preparation method of a biomass-based membrane material, in particular to a preparation method of a membrane material with excellent strength and toughness, degradability and certain antibacterial properties. Background technique [0002] The proportion of membrane materials in materials is very large, and most membrane materials are still made of plastic materials. On the one hand, although plastic materials have excellent mechanical properties and wide applicability, they are derived from petroleum products and cannot be degraded. Environmental pollution has also caused waste of resources. On the other hand, it is very difficult for plastic materials to achieve certain functions due to their single groups. It is currently becoming a challenge to find alternative materials with excellent performance, functionality and renewable materials. The top priority of research in the field of materials; especially in the field of ca...

Claims

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Application Information

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IPC IPC(8): C08L5/08C08L71/02C08L1/28C08L75/14C08J5/18C08J3/24C08G18/61C08G18/67C08G18/32
CPCC08G18/3206C08G18/36C08G18/61C08J3/246C08J5/18C08J2305/08C08J2401/28C08J2405/08C08J2471/02C08J2475/14
Inventor 陈一
Owner HUNAN UNIV OF TECH
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