CN106349669A - Bagasse biodegradable plastic and preparation method thereof - Google Patents

Bagasse biodegradable plastic and preparation method thereof Download PDF

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Publication number
CN106349669A
CN106349669A CN201610855088.4A CN201610855088A CN106349669A CN 106349669 A CN106349669 A CN 106349669A CN 201610855088 A CN201610855088 A CN 201610855088A CN 106349669 A CN106349669 A CN 106349669A
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bagasse
biodegradable
plasticss
preparation
biodegradable plastic
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CN106349669B (en
Inventor
付调坤
李积华
魏晓奕
常刚
夏文
崔丽虹
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Agricultural Products Processing Research Institute of CATAS
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

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

A kind of bagasse biodegradable plasticss and preparation method thereof
Technical field
The invention belongs to field of polymer composite material is and in particular to a kind of bagasse biodegradable plasticss and its preparation Method.
Background technology
Biodegradable plastic be a kind of have excellent serviceability, discarded after can completely be decomposed by environmental microorganism and form Macromolecular material for an ingredient of Carbon cycle in nature.Natural polymer such as cellulose, starch etc. are in nature Boundary's aboundresources, cheap, renewable, using the bioabsorbable polymer material that they are prepared, there is good biocompatibility, Can be degradable, and safety non-toxic, due to having the double meaning making full use of with environmental improvement of natural regeneration resource concurrently and Paid attention to by various countries, but they are not had thermoplasticity mostly, processing and forming is difficult, poor water resistance is limited its application.
Research emphasis both domestic and external are in terms of the full starch-based bio plastics developed with edible raw material at present, but production cost Too high.Starch is the biodegradable natural polymer of a now widely used class, is carried out physics, chemistry or enzyme process and changes Property, some functions or new physicochemical characteristic can be strengthened, degradable agricultural mulching and packaging material can be processed into, it is contemplated that To the restriction of grain security and land resource, the biodegradable plastic development space with starch as primary raw material is limited, non-grain The native cellulose of crop has the great potential preparing biological plasticss.
Content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of bagasse biodegradable plasticss, The present invention, with bagasse as raw material, by being modified to bagasse, prepares new holocellulos base biodegradation plastics Material, can be by waste fiber value maximization, and the higher value application for tropical crop waste fiber provides new thinking.
Further object is that providing a kind of preparation method of bagasse biodegradable plasticss, by sweet Bagasse differently carries out pretreatment, adjusts its thermoplastic property, obtains dissimilarity through batch mixing, the series of process such as hot-forming The Bagasse-cellulose base degradable biological plasticss of energy.
Realize the purpose of the present invention to reach by adopting the following technical scheme that:
A kind of bagasse biodegradable plasticss, it is to be prepared from by the component of following weight/mass percentage composition meter:
Preferably, described degradation plastic be poly epsilon caprolactone lactone, poly butylene succinate, in poly-β-hydroxybutyric acid one Kind.
Preferably, described plasticizer is one of synthesis vegetable esters, monoglyceride, ATBC or two kinds More than.
Preferably, described coupling agent is one of titanate esters, Aluminate, silane coupler or two or more.
Preferably, described lubricant is one of calcium stearate, glycerol, paraffin oil or two or more.
A kind of preparation method of bagasse biodegradable plasticss, comprises the following steps:
1) bagasse is pulverized with pulverizer, then pretreatment is carried out to bagasse, obtain bagasse powder, sealing is protected Deposit；
2) by step 1) the bagasse powder that obtains, add degradation plastic, plasticizer, coupling agent, lubricant by proportioning Mix homogeneously, then stirs, and mixing speed is 400-600r/min, while adding deionized water, after stirring, sealing Place 6h, obtain mixed material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
Preferably, step 1) pre-treatment step particularly as follows: pressing solid-liquid ratio 1:(15-25), be placed in boiling water and boil 30- 40min, then with distilled water wash, then 95 DEG C of dry for standby, the bagasse powder after be removed impurity heat treated.
Preferably, step 1) pre-treatment step particularly as follows: pressing solid-liquid ratio 1:(12-18), add salpeter solution, be placed in boiling 2-3h in water-bath, then it is washed with distilled water to neutrality；It is subsequently adding sodium hydroxide solution, be placed in 2-3h in boiling water bath, then by water The temperature of bath is adjusted to 80 DEG C, adds hydrogen peroxide bleaching 25-30min, then is washed with distilled water to neutrality, then 95 DEG C of drying, Obtain bagasse powder.
Preferably, the mass fraction of salpeter solution is 3%, and the volume of addition is 1.2-1.6l.
Preferably, the mass fraction of sodium hydroxide solution is 1.5%, and the volume of addition is 1.2-1.6l.
The beneficial effects of the present invention is:
1st, the present invention, with bagasse fibre as raw material, by being modified to bagasse, prepares new holocellulos base life Thing plastic material, can be by waste fiber value maximization, and the higher value application for tropical agricultural waste material provides new think of Road；
2nd, contain substantial amounts of hydroxyl in the bagasse fibre of the present invention, these hydroxyls form intermolecular hydrogen bonding or intramolecular hydrogen Key, makes that bagasse has water absorption and polarity is very strong；And thermoplastic majority is nonpolar, there is hydrophobicity, so two The compatibility between person is poor, the cohesive force very little at interface, next polymer-modified sweet using plasticizer, coupling agent, lubricant Bagasse surface, can improve the interface affinity between bagasse and plastics, and the bagasse of modification has enhanced property, The effect strengthening composite material strength can be reached；
3rd, step 1 in the preparation method of the present invention) by bagasse sealing preserve, it is in order to avoid the bagasse moisture absorption, because The moisture absorption can be lumpd, and can lead to mix uneven；Step 1) pretreatment in acid-alkali treatment be in order that its bagasse surface changes Property, structure is become loose, preferably can be combined with other components, bleaching in order that the plastics color preparing is pure white, And step 1) in drying and processing in pretreatment be then in order that bagasse preferably preserves；Step 3) in mixing be by machine Tool effect makes bagasse, degradation plastic uniformly mix with various additives；
4th, the preparation method of the present invention, by differently carrying out pretreatment to bagasse, adjusts its thermoplastic property, warp Batch mixing, the series of process such as hot-forming obtain the Bagasse-cellulose base degradable biological plasticss of different performance.
Specific embodiment
Below, in conjunction with specific embodiment, the present invention is described further:
Embodiment 1
A kind of bagasse biodegradable plasticss, its preparation method, comprise the following steps:
1) bagasse is pulverized with pulverizer, then boil 40min by solid-liquid ratio 1:20 in boiling water, then washed with distillation Wash, 95 DEG C of dry for standby, the bagasse powder after be removed impurity heat treated, sealing preserve is in exsiccator；
2) by step 1) the bagasse powder that obtains takes out 150g, adds 200g poly epsilon caprolactone lactone, 25g monoglyceride, 25g aluminum Acid esters, 25g paraffin oil mix homogeneously, then stir, and mixing speed is 400r/min, while adding 75g deionized water, stirs After mixing uniformly, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixed material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
Embodiment 2
A kind of bagasse biodegradable plasticss, its preparation method, comprise the following steps:
1) bagasse is pulverized with pulverizer, then boil 30min by solid-liquid ratio 1:15 in boiling water, then washed with distillation Wash, 95 DEG C of dry for standby, the bagasse powder after be removed impurity heat treated, sealing preserve is in exsiccator；
2) by step 1) the bagasse powder that obtains takes out 150g, adds 200g poly butylene succinate, 10g synthesis to plant Thing ester, 10g monoglyceride, 25g titanate esters, 25g calcium stearate mix homogeneously, then stir, and mixing speed is 600r/min, While adding 80g deionized water, after stirring, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixed material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
Embodiment 3
A kind of bagasse biodegradable plasticss, its preparation method, comprise the following steps:
1) bagasse is pulverized with pulverizer, then boil 40min by solid-liquid ratio 1:25 in boiling water, then washed with distillation Wash, 95 DEG C of dry for standby, the bagasse powder after be removed impurity heat treated, sealing preserve is in exsiccator；
2) by step 1) the bagasse powder that obtains takes out 100g, adds 600g poly-β-hydroxybutyric acid, 30g acetyl tributyl citrate Tri-n-butyl, 60g silane coupler, 29g glycerol, 21g paraffin oil mix homogeneously, then stir, and mixing speed is 600r/ Min, adds 160g deionized water, and after stirring, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixture Material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
Embodiment 4
A kind of bagasse biodegradable plasticss, its preparation method, comprise the following steps:
1) bagasse is pulverized with pulverizer, by solid-liquid ratio 1:18, adds the salpeter solution 1.3l that mass fraction is 3%, It is placed in 2.5h in boiling water bath, then be washed with distilled water to neutrality；It is subsequently adding the sodium hydroxide solution that mass fraction is 1.5% 1.3l, is placed in 2.5h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, adds hydrogen peroxide bleaching 28min, then uses distilled water Wash to neutrality, then 95 DEG C of drying, obtain bagasse powder, sealing preserve；
2) by step 1) the bagasse powder that obtains takes out 100g, adds 250g poly butylene succinate, 16g acetyl lemon Lemon acid tri-n-butyl, 14g synthesis vegetable esters, 20g titanate esters, 30g calcium stearate mix homogeneously, then stir, stirring speed Spend for 600r/min, add 70g deionized water, after stirring, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains To mixed material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
Embodiment 5
A kind of bagasse biodegradable plasticss, its preparation method, comprise the following steps:
1) bagasse is pulverized with pulverizer, by solid-liquid ratio 1:12, adds the salpeter solution 1.6l that mass fraction is 3%, It is placed in 2h in boiling water bath, then be washed with distilled water to neutrality；It is subsequently adding the sodium hydroxide solution that mass fraction is 1.5% 1.6l, is placed in 2h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, adds hydrogen peroxide bleaching 25min, then is washed with distillation Wash to neutrality, then 95 DEG C of drying, obtain bagasse powder, sealing preserve；
2) by step 1) the bagasse powder that obtains takes out 100g, adds 180g poly epsilon caprolactone lactone, 16g synthesis vegetable esters, 7g Titanate esters, 9g Aluminate, 20g paraffin oil mix homogeneously, then stir, and mixing speed is 600r/min, while adding 68g Deionized water, after stirring, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixed material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
Embodiment 6
A kind of bagasse biodegradable plasticss, its preparation method, comprise the following steps:
1) bagasse is pulverized with pulverizer, by solid-liquid ratio 1:16, adds the salpeter solution 1.6l that mass fraction is 3%, It is placed in 3h in boiling water bath, then be washed with distilled water to neutrality；It is subsequently adding the sodium hydroxide solution that mass fraction is 1.5% 1.6l, is placed in 3h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, adds hydrogen peroxide bleaching 30min, then is washed with distillation Wash to neutrality, then 95 DEG C of drying, obtain bagasse powder, sealing preserve；
2) by step 1) the bagasse powder that obtains takes out 125g, adds 225g poly-β-hydroxybutyric acid, 30g acetyl tributyl citrate Tri-n-butyl, 30g Aluminate, 5g calcium stearate, 15g paraffin oil mix homogeneously, then stir, and mixing speed is 400r/ Min, adds 70g deionized water, and after stirring, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixture Material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, compacting Become the plastic tab that thickness is 2mm.
The impact of performance test of the bagasse biodegradable plasticss that the present invention is obtained:
With the prepared bagasse biodegradable plasticss of embodiment 1-6 as experimental example, with vinyon as comparative example, right Experimental example carries out drawing effect test, and test effect is as follows:
Table 1 embodiment 1-6 drawing effect is tested
Tensile strength (mpa) Tearing strength (kn/m)
Embodiment 1 10.58 35.64
Embodiment 2 10.31 36.21
Embodiment 3 10.59 38.01
Embodiment 4 13.68 42.61
Embodiment 5 12.68 40.06
Embodiment 6 13.41 40.51
Comparative example 10.32 26.32
Can be obtained by table 1, the tensile strength of embodiment 1-6 is suitable with the tensile strength of LDPE: Low-density polyethylene plastics, but tears Resistance to spalling is more than vinyon it is seen then that the bagasse biodegradable plasticss of the present invention can replace can not drop on the market The plastics of solution, not only effective protection ecological environment, and also performance is similarly obtained guarantee.
For a person skilled in the art, can technical scheme as described above and design, make other each Plant corresponding change and deform, and all these changes and deforms the protection model that all should belong to the claims in the present invention Within enclosing.

Claims (10)

1. a kind of bagasse biodegradable plasticss are it is characterised in that it is by the component preparation of following weight/mass percentage composition meter Form:
2. bagasse biodegradable plasticss according to claim 1 are it is characterised in that described degradation plastic is poly- ε One of caprolactone, poly butylene succinate, poly-β-hydroxybutyric acid.
3. bagasse biodegradable plasticss according to claim 1 are it is characterised in that described plasticizer is synthesis plant One of ester, monoglyceride, ATBC or two or more.
4. bagasse biodegradable plasticss according to claim 1 it is characterised in that described coupling agent be titanate esters, One of Aluminate, silane coupler or two or more.
5. bagasse biodegradable plasticss according to claim 1 are it is characterised in that described lubricant is stearic acid One of calcium, glycerol, paraffin oil or two or more.
6. the preparation method of the bagasse biodegradable plasticss described in a kind of any one according to claim 1-5, its feature exists In comprising the following steps:
1) bagasse is pulverized with pulverizer, then pretreatment is carried out to bagasse, obtain bagasse powder, sealing preserve；
2) by step 1) the bagasse powder that obtains, add degradation plastic, plasticizer, coupling agent, mix lubricant by proportioning Uniformly, then stir, mixing speed is 400-600r/min, while adding deionized water, after stirring, sealing is placed 6h, obtains mixed material；
3) by step 2) mixed material be warmed to 180 DEG C, carry out kneading hot-forming, be finally cooled to 50 DEG C, be pressed into thickness Spend the plastic tab for 2mm.
7. the preparation method of bagasse biodegradable plasticss according to claim 6 is it is characterised in that step 1) pre- Process step is particularly as follows: press solid-liquid ratio 1:(15-25), it is placed in boiling water and boils 30-40min, then with distilled water wash, then 95 DEG C dry for standby, the bagasse powder after be removed impurity heat treated.
8. the preparation method of bagasse biodegradable plasticss according to claim 6 is it is characterised in that step 1) pre- Process step is particularly as follows: press solid-liquid ratio 1:(12-18), add salpeter solution, be placed in 2-3h in boiling water bath, then use distilled water wash To neutrality；It is subsequently adding sodium hydroxide solution, is placed in 2-3h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, add peroxide Change hydrogen bleaching 25-30min, then be washed with distilled water to neutrality, then 95 DEG C of drying, obtain bagasse powder.
9. the preparation method of bagasse biodegradable plasticss according to claim 8 is it is characterised in that salpeter solution Mass fraction is 3%, and the volume of addition is 1.2-1.6l.
10. the preparation method of bagasse biodegradable plasticss according to claim 8 is it is characterised in that sodium hydroxide The mass fraction of solution is 1.5%, and the volume of addition is 1.2-1.6l.
CN201610855088.4A 2016-09-26 2016-09-26 A kind of bagasse biodegradable plastics and preparation method thereof Active CN106349669B (en)

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Cited By (6)

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CN107325501A (en) * 2017-07-19 2017-11-07 池州学院 A kind of Sweetcane bark fiber base blending type PBS degradation plastics and preparation method thereof
CN107880502A (en) * 2017-11-24 2018-04-06 肖宇萍 A kind of biological whole degradation plastic and preparation method thereof
CN107973941A (en) * 2017-12-07 2018-05-01 中国热带农业科学院农产品加工研究所 Degradable bagasse mulch and preparation method thereof
CN108727793A (en) * 2018-06-12 2018-11-02 华南农业大学 Modified particieboard, enhancing polylactic acid 3D printing material and preparation method thereof
CN109054103A (en) * 2018-07-26 2018-12-21 嘉兴学院 A kind of holocellulos composite material and preparation method
CN112358712A (en) * 2020-12-07 2021-02-12 深圳市裕同包装科技股份有限公司 Bagasse fiber/PHA (polyhydroxyalkanoate) completely-degradable composite material and preparation method thereof

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CN103421286A (en) * 2013-08-08 2013-12-04 华南理工大学 High temperature resistant and degradable polylactic acid wood plastic material and preparation method thereof
CN104017340A (en) * 2014-06-25 2014-09-03 广州甘蔗糖业研究所 Bagasse/cassava starch polylactic acid biodegradable material, and preparation method and application thereof
CN105623208A (en) * 2016-03-21 2016-06-01 苏州锦腾电子科技有限公司 Degradable buffer package material

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Publication number Priority date Publication date Assignee Title
CN101434735A (en) * 2007-11-13 2009-05-20 吉林师范大学 Plant fibre reinforced biodegradable film material and preparation thereof
CN103421286A (en) * 2013-08-08 2013-12-04 华南理工大学 High temperature resistant and degradable polylactic acid wood plastic material and preparation method thereof
CN104017340A (en) * 2014-06-25 2014-09-03 广州甘蔗糖业研究所 Bagasse/cassava starch polylactic acid biodegradable material, and preparation method and application thereof
CN105623208A (en) * 2016-03-21 2016-06-01 苏州锦腾电子科技有限公司 Degradable buffer package material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107325501A (en) * 2017-07-19 2017-11-07 池州学院 A kind of Sweetcane bark fiber base blending type PBS degradation plastics and preparation method thereof
CN107880502A (en) * 2017-11-24 2018-04-06 肖宇萍 A kind of biological whole degradation plastic and preparation method thereof
CN107973941A (en) * 2017-12-07 2018-05-01 中国热带农业科学院农产品加工研究所 Degradable bagasse mulch and preparation method thereof
CN107973941B (en) * 2017-12-07 2021-03-12 中国热带农业科学院农产品加工研究所 Degradable bagasse mulching film and preparation method thereof
CN108727793A (en) * 2018-06-12 2018-11-02 华南农业大学 Modified particieboard, enhancing polylactic acid 3D printing material and preparation method thereof
CN109054103A (en) * 2018-07-26 2018-12-21 嘉兴学院 A kind of holocellulos composite material and preparation method
CN109054103B (en) * 2018-07-26 2020-11-24 嘉兴学院 Holocellulose composite material and preparation method thereof
CN112358712A (en) * 2020-12-07 2021-02-12 深圳市裕同包装科技股份有限公司 Bagasse fiber/PHA (polyhydroxyalkanoate) completely-degradable composite material and preparation method thereof

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