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Konjak portuguese gansu polyose polyester composite material and method for preparing same

A konjac glucomannan and polyester composite material technology, applied in the field of natural polymers, can solve the problems of few product varieties, low grades, limited application and transformation of research results, etc., and achieve the effect of simple process and low cost

Inactive Publication Date: 2008-07-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the research on KGM has mostly focused on the extraction, structural analysis and characterization of KGM, food properties (such as rheology, gelling, thickening, etc.), physicochemical properties, processing methods as food, medicinal and health care. function, general physical or chemical modification, etc., the products developed are few and low-grade, and the application and transformation of research results are very limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of preparation method of konjac glucomannan / polyester composite material, it comprises the steps:

[0017] Polycaprolactone (Germany, BASF) and konjac glucomannan powder (Wuhan Johnson Konjac Products Co., Ltd.) are according to the percentage by weight of each raw material: konjac glucomannan 30%, polycaprolactone 70% , into the SU-70 internal mixer (Changzhou Suyan Technology Co., Ltd.), and after internal mixing at 90° C. and 80 rpm for 10 minutes, the blend was taken out. Take the blend and put it on an experimental hot press (S-5001, Wuhan Tianmu Science and Technology Development Co., Ltd.) at 90°C and 20MPa, and hot press it for 5 minutes to prepare a sheet sample (a kind of konjac glucomannan / polyester composite).

Embodiment 2

[0019] A kind of preparation method of konjac glucomannan / polyester composite material, it comprises the steps:

[0020] Polycaprolactone (Germany, BASF) and konjac glucomannan powder (Wuhan Johnson Konjac Products Co., Ltd.) are according to the percentage by weight of each raw material: konjac glucomannan 10%, polycaprolactone 90% , into the SU-70 internal mixer (Changzhou Suyan Technology Co., Ltd.), and after internal mixing at 90° C. and 80 rpm for 10 minutes, the blend was taken out. Take the blend and put it on an experimental hot press (S-5001, Wuhan Tianmu Science and Technology Development Co., Ltd.) at 90°C and 20MPa, and hot press it for 5 minutes to prepare a sheet sample (a kind of konjac glucomannan / polyester composite).

Embodiment 3

[0022] A kind of preparation method of konjac glucomannan / polyester composite material, it comprises the steps:

[0023] Polycaprolactone (Germany, BASF) and konjac glucomannan powder (Wuhan Johnson Konjac Products Co., Ltd.) are according to the percentage by weight of each raw material: konjac glucomannan 5%, polycaprolactone 95% , into the SU-70 internal mixer (Changzhou Suyan Technology Co., Ltd.), and after internal mixing at 90° C. and 80 rpm for 10 minutes, the blend was taken out. Take the blend and put it on an experimental hot press (S-5001, Wuhan Tianmu Science and Technology Development Co., Ltd.) at 90°C and 20MPa, and hot press it for 5 minutes to prepare a sheet sample (a kind of konjac glucomannan / polyester composite).

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PUM

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Abstract

The invention relates to konjac glucomannan / polyester composite material and the preparation method thereof, which belongs to the scientific field of the macromolecule material and also belongs to the natural macromolecule field. The konjac glucomannan / polyester composite material is characterized in that the konjac glucomannan / polyester composite material is formed by preparing the raw materials of konjac glucomannan and polyester, the raw materials occupy the weight percentage as follows: konjac glucomannan occupies 1 to 65 percent, and polyester occupies 35 to 99 percent. The polyester is polylactic acid, polycaprolactone or polyhydroxyalkanoate. In the invention, biodegradable polyester is utilized to be melted and blended together with the konjac glucomannan, to prepare hydrophobic, thermo-plastic and biodegradable composite material; the invention has the advantages of low cost, environmental protection and simple process.

Description

technical field [0001] The invention relates to a konjac glucomannan / polyester composite material and a preparation method thereof, which belongs to the field of polymer material science and also belongs to the field of natural polymers. Background technique [0002] Due to the increasing consumption of petroleum resources and the environmental pollution caused by its manufactured products, the research on new materials based on renewable biomass resources has attracted increasing attention, among which natural polymers are an important type of biomass resources. New materials mainly refer to materials that meet the requirements of not only having good mechanical properties during use, meeting various needs, but also degrading into small molecular substances such as water and carbon dioxide after use. Degradable materials degrade through photodegradation, chemical degradation, biodegradation, etc., and usually contain hydrolyzable functional groups (such as ester bonds, urea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/02C08L67/04B29B7/28B29C47/38B29C47/92B29C43/58B29C45/76B29C48/395B29C48/92
CPCB29C48/022B29C48/92B29C2948/92514B29C2948/92561B29C2948/9259B29C2948/92704
Inventor 高山俊伍强贤黄进
Owner WUHAN UNIV OF TECH
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