Bagasse biodegradable plastic and preparation method thereof

A technology of biodegradable plastics and degradable plastics, applied in the field of bagasse biodegradable plastics and its preparation, can solve the problems of non-thermoplasticity, poor water resistance, difficult molding and processing, etc., and achieve the effect of enhancing strength and improving interface affinity

Active Publication Date: 2017-01-25
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural polymers such as cellulose and starch are rich in natural resources, cheap and renewable. The biopolymer materials prepared by using them have good biocompatibility, can be completely degraded, and are safe and non-toxic. The dual significance of full utilization of resources and environmental governance has attracted the attention of various countries, but most of them are not thermoplastic, difficult to form and process, and poor water resistance, which limits their application.
[0003] At present, the research focus at home and abroad is on the whole starch-based bioplastics developed from edible raw materials, but the production cost is too high
Starch is a kind of biodegradable natural polymer widely used at present. Physical, chemical or enzymatic modification can enhance certain functions or new physical and chemical properties, and can be processed into easily degradable agricultural mulch and packaging materials. , but considering the limitation of food security and land resources, the development space of biodegradable plastics with starch as the main raw material is limited, and the natural cellulose of non-food crops has great potential to prepare bioplastics

Method used

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  • Bagasse biodegradable plastic and preparation method thereof
  • Bagasse biodegradable plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of bagasse biodegradable plastics, its preparation method, comprises the following steps:

[0029] 1) Pulverize the bagasse with a pulverizer, then boil it in boiling water for 40 minutes according to the material-to-liquid ratio of 1:20, wash it with distilled water, and dry it at 95°C for later use to obtain the bagasse powder after removing impurities and heat treatment, and keep it sealed in in the dryer;

[0030] 2) Take out 150g of the bagasse powder obtained in step 1), add 200g of polyεcaprolactone, 25g of monoglyceride, 25g of aluminate, and 25g of paraffin oil, mix evenly, and then stir at a stirring speed of 400r / min. Add 75g of deionized water, stir evenly, seal and place for 6h, make the material fully mix and swell, and obtain the mixed material;

[0031] 3) The mixed material in step 2) is heated to 180° C., kneaded and hot-pressed, finally cooled to 50° C., and pressed into a plastic sheet with a thickness of 2 mm.

Embodiment 2

[0033] A kind of bagasse biodegradable plastics, its preparation method, comprises the following steps:

[0034] 1) Pulverize the bagasse with a pulverizer, then boil it in boiling water for 30 minutes according to the material-to-liquid ratio of 1:15, wash it with distilled water, dry it at 95°C for later use, and obtain the bagasse powder after removing impurities and heat treatment, and store it in a sealed container. in the dryer;

[0035] 2) Take out 150g of the bagasse powder obtained in step 1), add 200g polybutylene succinate, 10g synthetic vegetable ester, 10g monoglyceride, 25g titanate, 25g calcium stearate and mix evenly, then Stirring, the stirring speed is 600r / min, while adding 80g of deionized water, after stirring evenly, seal and place for 6h, so that the materials are fully mixed and swollen, and the mixed materials are obtained;

[0036] 3) The mixed material in step 2) is heated to 180° C., kneaded and hot-pressed, finally cooled to 50° C., and pressed in...

Embodiment 3

[0038] A kind of bagasse biodegradable plastics, its preparation method, comprises the following steps:

[0039] 1) Pulverize the bagasse with a pulverizer, then boil it in boiling water for 40 minutes according to the material-to-liquid ratio of 1:25, then wash it with distilled water, dry it at 95°C for later use, and obtain the bagasse powder after removing impurities and heat treatment, and store it in a sealed container. in the dryer;

[0040] 2) Take out 100g of the bagasse powder obtained in step 1), add 600g poly-β-hydroxybutyric acid, 30g acetyl tri-n-butyl citrate, 60g silane coupling agent, 29g glycerin, 21g paraffin oil and mix well, then Stirring, the stirring speed is 600r / min, while adding 160g of deionized water, after stirring evenly, seal and place for 6h, so that the materials are fully mixed and swelled, and the mixed materials are obtained;

[0041] 3) The mixed material in step 2) is heated to 180° C., kneaded and hot-pressed, finally cooled to 50° C., a...

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Abstract

The invention discloses bagasse biodegradable plastic and a preparation method thereof. The bagasse biodegradable plastic is prepared from the following components in mass percent: 40 to 60% of biodegradable plastic, 3 to 6% of plasticizer, 4 to 6% of coupling reagent, 4 to 6% of lubricant, 14 to 17% of deionized water and the balance of bagasse. According to the bagasse biodegradable plastic, the bagasse is used as a raw material and modified, so that a novel holocellulos based biological plastic material is prepared, the value of waste fiber can be maximized, and a new idea is provided for high-value utilization of the waste fiber of tropical crops. The invention further aims to provide the preparation method of the bagasse biodegradable plastic, the bagasse is pretreated with different methods, so that thermoplastic properties are adjusted, and the bagasse cellulose based biodegradable plastic with different properties can be obtained by a series of processes including mixing, hot-press forming and the like.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a bagasse biodegradable plastic and a preparation method thereof. Background technique [0002] Biodegradable plastic is a polymer material with excellent performance, which can be completely decomposed by environmental microorganisms after being discarded, and becomes an integral part of the carbon cycle in nature. Natural polymers such as cellulose and starch are rich in natural resources, cheap and renewable. The biopolymer materials prepared by using them have good biocompatibility, can be completely degraded, and are safe and non-toxic. The dual meanings of full utilization of resources and environmental governance have been valued by various countries, but most of them are not thermoplastic, difficult to form and process, and poor water resistance, which limits their application. [0003] At present, the research focus at home and abroad is on the who...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08L97/02C08L91/06C08K5/103C08K5/10C08K5/098C08K5/11
CPCC08K2201/014C08L67/02C08L67/04C08L2201/06C08L2205/03C08L2205/16C08L97/02C08L91/06C08K5/103C08K5/10C08K5/098C08K5/11
Inventor 付调坤李积华魏晓奕常刚夏文崔丽虹
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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