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A kind of degradable celery fiber composite material and preparation method thereof

A fiber composite material and composite material technology are applied in the field of celery fiber composite material and its preparation, which can solve the problems of limiting the use range of degradable polyester, poor mechanical properties, low molecular weight, etc., and achieve enhanced mechanical properties and improved mechanical properties. , the effect of a wide range of sources

Active Publication Date: 2021-09-24
哈工大机器人(山东)智能装备研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with traditional plastics, the performance needs to be further enhanced, and the price is relatively high, which further limits the scope of use of degradable polyester
Polybutylene succinate (PBS, polybutylene succinate) is a fully biodegradable resin, and its degradation products are water and carbon dioxide. It has similar mechanical properties and physical properties to general-purpose ethylene materials, but its relative molecular weight is low and its melt index is high. Poor mechanical properties

Method used

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  • A kind of degradable celery fiber composite material and preparation method thereof

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Experimental program
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Effect test

specific Embodiment approach 1

[0023] A kind of preparation method of degradable celery fiber composite material, comprises the steps:

[0024] Step 1, preparing modified celery fiber;

[0025] Step 2, polymerizing degradable polyester;

[0026] Step 3, mixing: mix the modified celery fiber prepared in step 1 and the degradable polyester polymerized in step 2 evenly according to a certain weight portion, then add it to a mixer for mixing, and after the reaction is completed, a composite material is obtained ,stand-by;

[0027] Step 4, processing and molding: processing and molding the composite material prepared in step 3 to obtain a degradable celery fiber composite material.

[0028] The preparation method of a kind of degradable celery fiber composite material described in this embodiment, the preparation method of celery fiber in step 1 is that celery is cut into sections, and then added to NaOH and NaOH 2 SO 3 in the mixed solution of celery, stirred at a certain temperature for a period of time, f...

specific Embodiment approach 2

[0036] A kind of preparation method of degradable celery fiber composite material, comprises the steps:

[0037] Step 1, preparing modified celery fiber;

[0038] Step 2, polymerizing degradable polyester;

[0039] Step 3, mixing: mix the modified celery fiber prepared in step 1 and the degradable polyester polymerized in step 2 evenly according to a certain weight portion, then add it to a mixer for mixing, and after the reaction is completed, a composite material is obtained ,stand-by;

[0040] Step 4, processing and molding: processing and molding the composite material prepared in step 3 to obtain a degradable celery fiber composite material.

[0041]The preparation method of a kind of degradable celery fiber composite material described in this embodiment, the preparation method of celery fiber in step 1 is that celery is cut into sections, and then added to NaOH and NaOH 2 SO 3 in the mixed solution of celery, stirred at a certain temperature for a period of time, fi...

specific Embodiment approach 3

[0049] A kind of preparation method of degradable celery fiber composite material, comprises the steps:

[0050] Step 1, preparing modified celery fiber;

[0051] Step 2, polymerizing degradable polyester;

[0052] Step 3, mixing: mix the modified celery fiber prepared in step 1 and the degradable polyester polymerized in step 2 evenly according to a certain weight portion, then add it to a mixer for mixing, and after the reaction is completed, a composite material is obtained ,stand-by;

[0053] Step 4, processing and molding: processing and molding the composite material prepared in step 3 to obtain a degradable celery fiber composite material.

[0054] The preparation method of a kind of degradable celery fiber composite material described in this embodiment, the preparation method of celery fiber in step 1 is that celery is cut into sections, and then added to NaOH and NaOH 2 SO 3 in the mixed solution of celery, stirred at a certain temperature for a period of time, f...

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Abstract

A degradable celery fiber composite material and a preparation method thereof belong to the field of degradable composite materials. The technical problem to be solved by the invention is to modify the degradable polyester. The invention prepares the modified celery fiber, polymerizes the degradable polyester, mixes the prepared modified celery fiber and the polymerized degradable polyester uniformly according to certain parts by weight, puts them into a mixer for mixing, and after the reaction , the composite material was obtained for processing and molding, and a degradable celery fiber composite material was obtained. The tensile yield strength of the present invention can reach up to 48MPa, the elongation can reach up to 500%, and the notched impact strength of the cantilever beam can reach up to 4.9kJ / m 2 , the highest bending strength can reach 40MPa, the highest bending modulus can reach 560MPa, and the mechanical properties are significantly improved compared with those of pure PBS.

Description

technical field [0001] The invention belongs to the field of degradable composite materials; in particular, it relates to a degradable celery fiber composite material and a preparation method thereof. Background technique [0002] Today, with the increasing shortage of global resources and the increasing awareness of environmental protection, environmental problems caused by plastics and sustainable utilization issues are increasingly concerned. Biodegradable polyesters can be degraded by natural microorganisms and have good performance. However, compared with traditional plastics, the use performance needs to be further enhanced, and the price is relatively high, which further limits the scope of use of degradable polyester. Polybutylene succinate (PBS, polybutylene succinate) is a fully biodegradable resin, and its degradation products are water and carbon dioxide. It has similar mechanical properties and physical properties to general-purpose ethylene materials, but its r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L5/08C08L99/00
Inventor 卢卫红张友源孙胜楠金少瑾朱云峰徐翠翠周凯
Owner 哈工大机器人(山东)智能装备研究院