CN107828227A - The method that screen method modified wood powder prepares bio-based plastics - Google Patents
The method that screen method modified wood powder prepares bio-based plastics Download PDFInfo
- Publication number
- CN107828227A CN107828227A CN201711189944.8A CN201711189944A CN107828227A CN 107828227 A CN107828227 A CN 107828227A CN 201711189944 A CN201711189944 A CN 201711189944A CN 107828227 A CN107828227 A CN 107828227A
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- CN
- China
- Prior art keywords
- wood powder
- based plastics
- prepares bio
- modified wood
- ball milling
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Classifications
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
Abstract
The present invention relates to synthetic fiber industry technical field, and in particular to a kind of method that screen method modified wood powder prepares bio-based plastics.A kind of method that screen method modified wood powder prepares bio-based plastics, comprises the following steps：（1）Ball milling pretreatment；（2）The preparation of modified product.Bending strength by the bio-based plastics prepared by method provided by the invention is 207MPa, tensile strength is 129 MPa, elongation at break 3.2%, thermoplasticity and good mechanical properties.
Description
Technical field
The present invention relates to synthetic fiber industry technical field, and in particular to a kind of screen method modified wood powder prepares bio-based modeling
The method of material.
Background technology
Plastics are a kind of indispensable materials of today's society, but with the increasingly deficient and production stone of petroleum resources
Sight is gradually transferred to the research of bio-based plastics by problem of environmental pollution caused by oil base plastics, people.At present, bio-based
The raw material of plastics is mainly grain, if the raw material of poly (hydroxyalkanoate) esters and PLA is starch, the raw material of biological poly ethene
It is sugarcane etc., the problem of striving grain with people is present.China is a large agricultural country, it is annual produce 800,000,000~1,000,000,000 t agricultural wastes and
Wood leftover material, these reproducible wood fiber biomass are the good raw materials for preparing bio-based plastics.
At present, domestic and international most study be prevented between cellulosic molecule by the chemical modification means such as being esterified and be etherified or
Intramolecular forms hydrogen bond so as to obtain thermoplastic.With wood fiber biomass, such as Hu mulberry branch wood powder and wheat straw are
Raw material, injection grade bio-based plastics are successfully prepared using esterifying reagent and under catalyst action, but modified bar be present
The problems such as part is harsh, difficult solvent recovery, and cost is high.Screen method is on the basis of cellulose dissolution, from suitable shielding
Agent forms hydrogen bond or coordinate bond with the hydroxyl on cellulose, so as to prevent to form hydrogen bond with intramolecular between cellulosic molecule.
The content of the invention
It is contemplated that in view of the above-mentioned problems, propose a kind of method that screen method modified wood powder prepares bio-based plastics.
Technical program of the present invention lies in：
A kind of method that screen method modified wood powder prepares bio-based plastics, comprises the following steps：
（1）Ball milling pretreatment；
（2）The preparation of modified product.
The specific implementation process of described ball milling pretreatment is：80g Hu mulberry branch wood powders are weighed after 60 DEG C of oven dryings
It is placed in 250mL agate jar, adds zirconium oxide balls and carry out ball milling.
The preparation process of described modified product is：60gNaOH, iron chloride, sodium tartrate and ball milling wood powder are weighed, respectively
Pour into 4 beakers；600mL distilled water is measured respectively to pour into above-mentioned 4 beakers, and is stirred continuously with glass bar；Treat sample
Iron chloride and NaOH are poured into the beaker for filling EWNN solution successively after product dissolving, and preparation is stirred continuously with glass bar
Into blackish green FeTNa solution；FeTNa solution is poured slowly into again in the ball milling wood powder beaker for filling and being dispersed in water, be used in combination
Glass bar stirs；Place into refrigerator swollen；Then mediated in kneader, glycerine is added after drying, in twin-screw extrusion
Modified product is made in blending extrusion in machine.
The parameter of described ball mill operational factor is：Per 30min rotatings alternately once, alternate intervals downtime is
0, rotating speed 516r/min, ball, Ball-milling Time 4h.
The kneading temperature of described kneader is 40 DEG C, kneading time 4g.
The temperature of described refrigerator swollen is 4 DEG C.
The technical effects of the invention are that：
Bending strength by the bio-based plastics prepared by method provided by the invention is 207MPa, tensile strength 129
MPa, elongation at break 3.2%, thermoplasticity and good mechanical properties.
Embodiment
A kind of method that screen method modified wood powder prepares bio-based plastics, comprises the following steps：
（1）Ball milling pretreatment；
（2）The preparation of modified product.
Wherein, the specific implementation process of described ball milling pretreatment is：80g Hu mulberry branch wood powders are weighed in 60 DEG C of baking ovens
It is placed in after drying in 250mL agate jar, adds zirconium oxide balls and carry out ball milling.
The preparation process of modified product is：60gNaOH, iron chloride, sodium tartrate and ball milling wood powder are weighed, pours into 4 respectively
In individual beaker；600mL distilled water is measured respectively to pour into above-mentioned 4 beakers, and is stirred continuously with glass bar；Treat that sample dissolves
Iron chloride and NaOH are poured into the beaker for filling EWNN solution successively afterwards, and be stirred continuously with glass bar be configured to it is blackish green
The FeTNa solution of color；FeTNa solution is poured slowly into again in the ball milling wood powder beaker for filling and being dispersed in water, and uses glass bar
Stir；Place into refrigerator swollen；Then mediated in kneader, glycerine is added after drying, in double screw extruder altogether
Modified product is made in mixed extrusion.
Wherein, the parameter of described ball mill operational factor is：Per 30min rotatings alternately once, alternate intervals are shut down
Time is 0, rotating speed 516r/min, ball, Ball-milling Time 4h.The kneading temperature of described kneader is 40 DEG C, kneading time
For 4g.The temperature of described refrigerator swollen is 4 DEG C.
Claims (6)
1. a kind of method that screen method modified wood powder prepares bio-based plastics, it is characterised in that：Comprise the following steps：
（1）Ball milling pretreatment；
（2）The preparation of modified product.
2. the method that screen method modified wood powder according to claim 1 prepares bio-based plastics, it is characterised in that：Described
The specific implementation process of ball milling pretreatment is：Weigh 80g Hu mulberry branch wood powders and be placed in 250mL's after 60 DEG C of oven dryings
In agate jar, add zirconium oxide balls and carry out ball milling.
3. the method that screen method modified wood powder according to claim 2 prepares bio-based plastics, it is characterised in that：Described
The process of the preparation of modified product is：60gNaOH, iron chloride, sodium tartrate and ball milling wood powder are weighed, pours into 4 beakers respectively
In；600mL distilled water is measured respectively to pour into above-mentioned 4 beakers, and is stirred continuously with glass bar；After sample dissolving successively
Iron chloride and NaOH are poured into the beaker for filling EWNN solution, and be stirred continuously with glass bar be configured to it is blackish green
FeTNa solution；FeTNa solution is poured slowly into again in the ball milling wood powder beaker for filling and being dispersed in water, and stirred with glass bar
Uniformly；Place into refrigerator swollen；Then mediated in kneader, glycerine is added after drying, be blended and squeeze in double screw extruder
Go out obtained modified product.
4. the method that screen method modified wood powder according to claim 3 prepares bio-based plastics, it is characterised in that：Described
The parameter of ball mill operational factor is：Per 30min rotatings alternately once, alternate intervals downtime is 0, rotating speed 516r/
Min, ball, Ball-milling Time 4h.
5. the method that screen method modified wood powder according to claim 4 prepares bio-based plastics, it is characterised in that：Described
The kneading temperature of kneader is 40 DEG C, kneading time 4g.
6. the method that screen method modified wood powder according to claim 5 prepares bio-based plastics, it is characterised in that：Described
The temperature of refrigerator swollen is 4 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711189944.8A CN107828227A (en) | 2017-11-24 | 2017-11-24 | The method that screen method modified wood powder prepares bio-based plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711189944.8A CN107828227A (en) | 2017-11-24 | 2017-11-24 | The method that screen method modified wood powder prepares bio-based plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107828227A true CN107828227A (en) | 2018-03-23 |
Family
ID=61653485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711189944.8A Pending CN107828227A (en) | 2017-11-24 | 2017-11-24 | The method that screen method modified wood powder prepares bio-based plastics |
Country Status (1)
| Country | Link |
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| CN (1) | CN107828227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771359A (en) * | 2018-12-30 | 2019-05-21 | 武汉华丽环保科技有限公司 | A kind of bio-based plastics microballon and preparation method thereof |
| CN112048936A (en) * | 2020-09-17 | 2020-12-08 | 齐鲁工业大学 | Method for preparing coating by using biomass, coating and sizing material |
-
2017
- 2017-11-24 CN CN201711189944.8A patent/CN107828227A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771359A (en) * | 2018-12-30 | 2019-05-21 | 武汉华丽环保科技有限公司 | A kind of bio-based plastics microballon and preparation method thereof |
| CN112048936A (en) * | 2020-09-17 | 2020-12-08 | 齐鲁工业大学 | Method for preparing coating by using biomass, coating and sizing material |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180323 |