CN106349669B - A kind of bagasse biodegradable plastics and preparation method thereof - Google Patents
A kind of bagasse biodegradable plastics and preparation method thereof Download PDFInfo
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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
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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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- 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
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- 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
Abstract
The invention discloses a kind of bagasse biodegradable plastics and preparation method thereof, the bagasse biodegradable plastics is prepared by the component of following mass percentage meter: degradation plastic 40-60%, plasticizer 3-6%, coupling agent 4-6%, lubricant 4-6%, deionized water 14-17%, bagasse surplus.The present invention, by being modified to bagasse, prepares novel holocellulos base biological plastics material, waste fiber value maximization, the higher value application for tropical crop waste fiber can be provided new thinking using bagasse as raw material.It is another object of the present invention to provide a kind of preparation methods of bagasse biodegradable plastics, by differently being pre-processed to bagasse, its thermoplastic property is adjusted, obtains the Bagasse-cellulose base degradable biological plastics of different performance through the series of process such as mixing, hot-forming.
Description
Technical field
The invention belongs to field of polymer composite material, and in particular to a kind of bagasse biodegradable plastics and its preparation
Method.
Background technique
Biodegradable plastic be it is a kind of with excellent service performance, it is discarded after can be decomposed completely by environmental microorganism
For the high molecular material of a component part of Carbon cycle in nature.Natural polymer such as cellulose, starch etc. is in nature
Boundary is resourceful, cheap, renewable, has good biocompatibility using the bioabsorbable polymer material that they are prepared,
Can be degradable, and safe and non-toxic, due to having both the double meaning of natural regeneration resource made full use of with environmental improvement and
By the attention of various countries, but they do not have thermoplasticity mostly, and processing and forming is difficult, and poor water resistance limits its application.
Current research emphasis both domestic and external is in terms of the full starch-based bio plastics developed with edible raw material, but production cost
It is excessively high.Starch is the biodegradable natural polymer of now widely used one kind, is carried out physics, chemistry or enzyme process and changed
Property, certain functions or new physicochemical characteristic can be enhanced, degradable agricultural mulching and packaging material can be processed into, it is contemplated that
To the limitation of grain security and land resource, using starch as the biodegradable plastic development space of primary raw material limited, non-grain
The native cellulose of crop has the great potential for preparing biological plastics.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of bagasse biodegradable plastics,
The present invention, by being modified to bagasse, prepares novel holocellulos base biodegradation plastics using bagasse as raw material
Waste fiber value maximization, the higher value application for tropical crop waste fiber can be provided new thinking by material.
It is another object of the present invention to provide a kind of preparation methods of bagasse biodegradable plastics, by sweet
Bagasse is differently pre-processed, its thermoplastic property is adjusted, and obtains dissimilarity through the series of process such as mixing, hot-forming
The Bagasse-cellulose base degradable biological plastics of energy.
Achieving the object of the present invention can be reached by adopting the following technical scheme that:
A kind of bagasse biodegradable plastics is prepared by the component of following mass percentage meter:
Preferably, the degradation plastic is poly epsilon caprolactone lactone, poly butylene succinate, one in poly-β-hydroxybutyric acid
Kind.
Preferably, the plasticizer is one or both of synthesis vegetable esters, monoglyceride, acetyl tri-n-butyl citrate
More than.
Preferably, the coupling agent is one or more of titanate esters, Aluminate, silane coupling agent.
Preferably, the lubricant is one or more of calcium stearate, glycerol, paraffin oil.
A kind of preparation method of bagasse biodegradable plastics, comprising the following steps:
1) bagasse is crushed with pulverizer, then bagasse is pre-processed, obtain bagasse powder, sealing is protected
It deposits；
2) degradation plastic, plasticizer, coupling agent, lubricant is added in the bagasse powder for obtaining step 1) according to the ratio
It being uniformly mixed, then stirs on one side, deionized water is added in mixing speed 400-600r/min on one side, after mixing evenly, sealing
6h is placed, mixed material is obtained；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
Preferably, the pre-treatment step of step 1) specifically: press solid-liquid ratio 1:(15-25), it is placed into boiling water and boils 30-
40min, then be washed with distilled water, it is then dried for standby for 95 DEG C, the bagasse powder after be removed impurity and heat treatment.
Preferably, the pre-treatment step of step 1) specifically: press solid-liquid ratio 1:(12-18), nitric acid solution is added, is placed in boiling
2-3h in water-bath, then it is washed with distilled water to neutrality；Then sodium hydroxide solution is added, is placed in 2-3h in boiling water bath, then by water
The temperature of bath is adjusted to 80 DEG C, hydrogen peroxide bleaching 25-30min is added, then be washed with distilled water to neutrality, then 95 DEG C of drying,
Obtain bagasse powder.
Preferably, the mass fraction of nitric acid 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 are:
1, the present invention, by being modified to bagasse, it is raw to prepare novel holocellulos base using bagasse fibre as raw material
Waste fiber value maximization, the higher value application for tropical agricultural waste material can be provided new think of by object plastic material
Road；
2, contain a large amount of hydroxyl in bagasse fibre of the invention, these hydroxyls form intermolecular hydrogen bonding or intramolecular hydrogen
Key, make bagasse have water imbibition and polarity it is very strong；And thermoplastic majority be it is nonpolar, have hydrophobicity, so two
Compatibility between person is poor, the cohesive force very little at interface, is come using plasticizer, coupling agent, lubricant polymer-modified-sweet
The interface affinity between bagasse and plastics can be improved in bagasse surface, and modified bagasse has the property of enhancing,
It can have the function that enhance composite material strength；
3, bagasse is sealed by step 1) in preparation method of the invention, be in order to avoid the bagasse moisture absorption because
The moisture absorption can agglomerate, and it is uneven to will lead to mixing；Soda acid processing in the pretreatment of step 1) is to change its bagasse surface
Property, structure become loose, can preferably be combined with other components, and bleaching is pure white in order to make the plastics color prepared,
And the drying and processing in step 1) in pretreatment is then to save bagasse preferably；Mixing in step 3) is to pass through machine
Tool effect mixes bagasse, degradation plastic uniformly with various additives；
4, preparation method of the invention adjusts its thermoplastic property, passes through by differently pre-processing to bagasse
The series of process such as mixing, hot-forming obtain the Bagasse-cellulose base degradable biological plastics of different performance.
Specific embodiment
In the following, being described further in conjunction with specific embodiment to the present invention:
Embodiment 1
A kind of bagasse biodegradable plastics, preparation method, comprising the following steps:
1) bagasse is crushed with pulverizer, then boils 40min in boiling water by solid-liquid ratio 1:20, then washed with distillation
It washs, 95 DEG C are dried for standby, and the bagasse powder after be removed impurity and heat treatment is sealed in drier；
2) the bagasse powder for obtaining step 1) takes out 150g, and 200g poly epsilon caprolactone lactone, 25g monoglyceride, 25g aluminium is added
Acid esters, 25g paraffin oil are uniformly mixed, and are then stirred on one side, mixing speed 400r/min, and 75g deionized water is added on one side, stirs
After mixing uniformly, 6h is placed in sealing, so that material is sufficiently mixed swelling, is obtained mixed material；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
Embodiment 2
A kind of bagasse biodegradable plastics, preparation method, comprising the following steps:
1) bagasse is crushed with pulverizer, then boils 30min in boiling water by solid-liquid ratio 1:15, then washed with distillation
It washs, 95 DEG C are dried for standby, and the bagasse powder after be removed impurity and heat treatment is sealed in drier；
2) the bagasse powder for obtaining step 1) takes out 150g, 200g poly butylene succinate is added, 10g synthesis is planted
Object ester, 10g monoglyceride, 25g titanate esters, 25g calcium stearate are uniformly mixed, and are then stirred on one side, mixing speed 600r/min,
80g deionized water is added on one side, after mixing evenly, 6h is placed in sealing, so that material is sufficiently mixed swelling, is obtained mixed material；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
Embodiment 3
A kind of bagasse biodegradable plastics, preparation method, comprising the following steps:
1) bagasse is crushed with pulverizer, then boils 40min in boiling water by solid-liquid ratio 1:25, then washed with distillation
It washs, 95 DEG C are dried for standby, and the bagasse powder after be removed impurity and heat treatment is sealed in drier；
2) the bagasse powder for obtaining step 1) takes out 100g, and 600g poly-β-hydroxybutyric acid, 30g acetyl tributyl citrate is added
Tri-n-butyl, 60g silane coupling agent, 29g glycerol, 21g paraffin oil are uniformly mixed, and are then stirred on one side, mixing speed 600r/
160g deionized water is added in min on one side, and after mixing evenly, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixture
Material；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
Embodiment 4
A kind of bagasse biodegradable plastics, preparation method, comprising the following steps:
1) bagasse is crushed with pulverizer, by solid-liquid ratio 1:18, the nitric acid solution 1.3L that mass fraction is 3% is added,
It is placed in 2.5h in boiling water bath, then is washed with distilled water to neutrality；Then the sodium hydroxide solution that mass fraction is 1.5% is added
1.3L is placed in 2.5h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, hydrogen peroxide bleaching 28min is added, then use distilled water
Washing is to neutrality, and then 95 DEG C of drying, obtain bagasse powder, be sealed；
2) the bagasse powder for obtaining step 1) takes out 100g, and 250g poly butylene succinate, 16g acetyl lemon is added
Lemon acid tri-n-butyl, 14g synthesis vegetable esters, 20g titanate esters, 30g calcium stearate are uniformly mixed, and are then stirred on one side, stirring speed
Degree is 600r/min, and 70g deionized water is added on one side, and after mixing evenly, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains
To mixed material；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
Embodiment 5
A kind of bagasse biodegradable plastics, preparation method, comprising the following steps:
1) bagasse is crushed with pulverizer, by solid-liquid ratio 1:12, the nitric acid solution 1.6L that mass fraction is 3% is added,
It is placed in 2h in boiling water bath, then is washed with distilled water to neutrality；Then the sodium hydroxide solution that mass fraction is 1.5% is added
1.6L is placed in 2h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, hydrogen peroxide bleaching 25min is added, then washed with distillation
It washs to neutrality, then 95 DEG C of drying, obtain bagasse powder, be sealed；
2) the bagasse powder for obtaining step 1) takes out 100g, 180g poly epsilon caprolactone lactone is added, 16g synthesizes vegetable esters, 7g
Titanate esters, 9g Aluminate, 20g paraffin oil are uniformly mixed, and are then stirred on one side, 68g is added in mixing speed 600r/min on one side
Deionized water, after mixing evenly, sealing place 6h, so that material is sufficiently mixed swelling, obtain mixed material；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
Embodiment 6
A kind of bagasse biodegradable plastics, preparation method, comprising the following steps:
1) bagasse is crushed with pulverizer, by solid-liquid ratio 1:16, the nitric acid solution 1.6L that mass fraction is 3% is added,
It is placed in 3h in boiling water bath, then is washed with distilled water to neutrality；Then the sodium hydroxide solution that mass fraction is 1.5% is added
1.6L is placed in 3h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, hydrogen peroxide bleaching 30min is added, then washed with distillation
It washs to neutrality, then 95 DEG C of drying, obtain bagasse powder, be sealed；
2) the bagasse powder for obtaining step 1) takes out 125g, and 225g poly-β-hydroxybutyric acid, 30g acetyl tributyl citrate is added
Tri-n-butyl, 30g Aluminate, 5g calcium stearate, 15g paraffin oil are uniformly mixed, and are then stirred on one side, mixing speed 400r/
70g deionized water is added in min on one side, and after mixing evenly, 6h is placed in sealing, so that material is sufficiently mixed swelling, obtains mixture
Material；
3) mixed material of step 2) is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, compacting
At the plastic tab with a thickness of 2mm.
The impact of performance of bagasse biodegradable plastics produced by the present invention is tested:
It is right using vinyon as comparative example using bagasse biodegradable plastics made from embodiment 1-6 as experimental example
Experimental example carries out drawing effect test, and test effect is as follows:
The test of 1 embodiment 1-6 drawing effect of table
| 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 |
It can be obtained by table 1, the tensile strength of embodiment 1-6 and the tensile strength of LDPE: Low-density polyethylene plastics are suitable, but tear
Resistance to spalling is greater than vinyon, it is seen then that bagasse biodegradable plastics of the 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 those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
Kind is corresponding to be changed and deforms, and all these change and deform the protection model that all should belong to the claims in the present invention
Within enclosing.
Claims (10)
1. a kind of bagasse biodegradable plastics, which is characterized in that it is prepared by the component of following mass percentage meter
It forms:
Degradation plastic 40-60%
Plasticizer 3-6%
Coupling agent 4-6%
Lubricant 4-6%
Deionized water 14-17%
Bagasse surplus；
The preparation method of bagasse biodegradable plastics, comprising the following steps:
1) bagasse is crushed with pulverizer, then bagasse is pre-processed, pre-treatment step specifically: press solid-liquid ratio 1:
(15-25) is placed into boiling water and boils 30-40 min, then be washed with distilled water, and is then dried for standby for 95 DEG C, be removed impurity
And the bagasse powder after heating；Or, pressing solid-liquid ratio 1:(12-18), nitric acid solution is added, is placed in 2-3h in boiling water bath,
It is washed with distilled water to neutrality again；Then sodium hydroxide solution is added, is placed in 2-3h in boiling water bath, then the temperature of water-bath is adjusted to
80 DEG C, hydrogen peroxide bleaching 25-30min is added, then be washed with distilled water to neutrality, then 95 DEG C of drying, obtain bagasse powder
End；Pretreatment obtains bagasse powder, is sealed；
2) degradation plastic, plasticizer, coupling agent, mix lubricant is added in the bagasse powder for obtaining step 1) according to the ratio
Uniformly, it then stirs on one side, deionized water is added in mixing speed 400-600r/min on one side, and after mixing evenly, sealing is placed
6h obtains mixed material；
3) mixed material of step 2 is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, be pressed into thickness
Degree is the plastic tab of 2mm.
2. bagasse biodegradable plastics according to claim 1, which is characterized in that the degradation plastic is poly- ε
One of caprolactone, poly butylene succinate, poly-β-hydroxybutyric acid.
3. bagasse biodegradable plastics according to claim 1, which is characterized in that the plasticizer is synthesis plant
One or more of ester, monoglyceride, acetyl tri-n-butyl citrate.
4. bagasse biodegradable plastics according to claim 1, which is characterized in that the coupling agent be titanate esters,
One or more of Aluminate, silane coupling agent.
5. bagasse biodegradable plastics according to claim 1, which is characterized in that the lubricant is stearic acid
One or more of calcium, glycerol, paraffin oil.
6. a kind of preparation method of bagasse biodegradable plastics according to claim 1-5, feature exist
In, comprising the following steps:
1) bagasse is crushed with pulverizer, then bagasse is pre-processed, obtained bagasse powder, be sealed；
2) degradation plastic, plasticizer, coupling agent, mix lubricant is added in the bagasse powder for obtaining step 1) according to the ratio
Uniformly, it then stirs on one side, deionized water is added in mixing speed 400-600r/min on one side, and after mixing evenly, sealing is placed
6h obtains mixed material；
3) mixed material of step 2 is warmed to 180 DEG C, be kneaded hot-forming, be finally cooled to 50 DEG C, be pressed into thickness
Degree is the plastic tab of 2mm.
7. the preparation method of bagasse biodegradable plastics according to claim 6, which is characterized in that step 1) it is pre-
Processing step specifically: press solid-liquid ratio 1:(15-25), it is placed into boiling water and boils 30-40 min, then be washed with distilled water, then
95 DEG C are dried for standby, the bagasse powder after be removed impurity and heat treatment.
8. the preparation method of bagasse biodegradable plastics according to claim 6, which is characterized in that step 1) it is pre-
Processing step specifically: press solid-liquid ratio 1:(12-18), nitric acid solution is added, is placed in 2-3h in boiling water bath, then be washed with distilled water
To neutrality；Then sodium hydroxide solution is added, is placed in 2-3h in boiling water bath, then the temperature of water-bath is adjusted to 80 DEG C, peroxide is added
Change hydrogen and bleach 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 plastics according to claim 8, which is characterized in that nitric acid solution
Mass fraction is 3%, and the volume of addition is 1.2-1.6L.
10. the preparation method of bagasse biodegradable plastics according to claim 8, which is characterized in that sodium hydroxide
The mass fraction of solution is 1.5%, and the volume of addition is 1.2-1.6L.
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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 |
| 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 |
| CN108727793B (en) * | 2018-06-12 | 2020-01-14 | 华南农业大学 | Modified shaving board, reinforced polylactic acid 3D printing material and preparation method thereof |
| 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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