CN109135217A - A kind of bioengineering plastics - Google Patents
A kind of bioengineering plastics Download PDFInfo
- Publication number
- CN109135217A CN109135217A CN201710507223.0A CN201710507223A CN109135217A CN 109135217 A CN109135217 A CN 109135217A CN 201710507223 A CN201710507223 A CN 201710507223A CN 109135217 A CN109135217 A CN 109135217A
- Authority
- CN
- China
- Prior art keywords
- parts
- raw material
- bioengineering
- plastics
- polylactic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
-
- 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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- 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 belongs to engineering plastics technical fields, and in particular to a kind of bioengineering plastics.The engineering plastics are directly extruded after being blended by each raw material and are obtained, according to the mass fraction, including each raw material: 50~85 parts of polylactic resin, 50~75 parts of polycarbonate, 3~8 parts of chitosan, 5~20 parts of anti-impact modifier.The present invention proposes a kind of bioengineering plastics, raw material are easy to get, production cost is low and quality is stablized, with preferable heat resistance and mechanical property, wherein the shock resistance of plastics is improved by adding impact modification auxiliary agent, due to the use of polylactic resin, reduce the high molecular dosage of petroleum base in material, it reduces and discharges amount of carbon dioxide to atmosphere when production is discarded, environmental pollution is small, is suitble to large-scale continuous production.
Description
Technical field
The invention belongs to engineering plastics technical fields, and in particular to a kind of bioengineering plastics.
Background technique
In recent years, due to the shortage of environmental requirement and petroleum resources, polylactic resin is increasingly by the attention of people.Poly- cream
Acid resin be it is a kind of as starch through biofermentation be converted into lactic acid, lactic acid it is aggregated obtained from high molecular material, with good
Good biodegradability is finally degraded into inorganic substances Ru Shui and two by the enzyme effect that microorganism generates in the natural environment
Carbonoxide is reproducible environmentally friendly biodegradable plastic.
But since pure crystallization of polylactic acid resin speed is slow, moulded products shrinking percentage is big, poor dimensional stability, this stature
Matter is crisp, and processing heat stability difference etc. limits its application as engineering plastics.
How polylactic resin is enhanced, is the research hotspot of the industry.
Summary of the invention
The purpose of the present invention is to provide a kind of bioengineering plastics, and the bioengineering plastics are with polylactic acid and polycarbonate
For main component, raw material sources are extensive, and cost is more cheap, and properties of product are stablized.
The technical solution realizing the object of the invention and using are as follows:
A kind of bioengineering plastics, the bioengineering plastics are directly extruded after being blended by each raw material and are obtained, it is characterised in that: are pressed
Mass fraction meter, including each raw material: 50~85 parts of polylactic resin, 50~75 parts of polycarbonate, 3~8 parts of chitosan, shock resistance
5~20 parts of modifying agent.
Preferably, the polylactic resin is made by following steps: (1) raw material is extracted, under the action of biocatalyst,
Pure lactic acid is added and calcium carbonate ferments, obtains fermentation liquid;(2) sulfuric acid is added into fermentation liquid, is filtered after being sufficiently stirred, it is right
Filtrate is evaporated concentration, and filters again, obtains lactic acid;(3) lactic acid generates ring by refining, being dehydrated oligomeric, Pintsch process
Shape lactide dimer, then open loop polycondensation synthesize polylactic resin.
Preferably, extraction raw material as described in step (1), the raw material are selected from one of corn, wheat, cassava.
Preferably, the biocatalyst is selected from one of maltase, carbohydrase.
Preferably, the percentage by volume of sulfuric acid described in step (2) is 20-30%.
Preferably, the anti-impact modifier is selected from one of ACR impact modifier or EVA anti-impact modifier.
Technical effect caused by the present invention:
The present invention proposes that a kind of bioengineering plastics, raw material are easy to get, and production cost is low and quality is stablized, and has preferable
Heat resistance and mechanical property, wherein the shock resistance of plastics is improved by adding impact modification auxiliary agent, due to polylactic acid
The use of resin reduces the high molecular dosage of petroleum base in material, reduces and discharges amount of carbon dioxide to atmosphere when production is discarded,
Environmental pollution is small, is suitble to large-scale continuous production.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
Embodiment 1
1) preparation of polylactic resin
Maize raw material is extracted pure lactic acid is added and calcium carbonate ferments, is sent out under the action of biocatalyst maltase
Zymotic fluid;Sulfuric acid is added into fermentation liquid, the percentage by volume of sulfuric acid is 50%, filters, is evaporated to filtrate dense after being sufficiently stirred
Contracting, and filter again, obtain lactic acid;For lactic acid by refining, being dehydrated oligomeric, Pintsch process, generation cyclic dimer lactide will
Lactic acid is transformed into lactide, i.e. osculant product diminishing lactic acid, then open loop polycondensation synthesizing polylactic acid tree with special concentration processing procedure
Polylactic acid obtained is dried rouge, spare.
2) preparation of bioengineering plastics
80 parts of each component polylactic resin are weighed according to parts by weight, 65 parts of polycarbonate, 5 parts of chitosan, anti-impact modifier 10
Part, and each component is put into mixing and blending machine and is mixed, mixing revolving speed is 60 revs/min, mixing time 10 minutes;It will mix
Material after conjunction, which is placed in double screw extruder, to be squeezed out, and wherein temperature control parameter is, is fed 155 DEG C of section, compression section 168
DEG C, 192 DEG C of head temperature, 187 DEG C of die temperature.
Embodiment 2
1) preparation of polylactic resin
Wheat materials are extracted pure lactic acid is added and calcium carbonate ferments, is sent out under the action of biocatalyst carbohydrase
Zymotic fluid;Sulfuric acid is added into fermentation liquid, the percentage by volume of sulfuric acid is 50%, filters, is evaporated to filtrate dense after being sufficiently stirred
Contracting, and filter again, obtain lactic acid;For lactic acid by refining, being dehydrated oligomeric, Pintsch process, generation cyclic dimer lactide will
Lactic acid is transformed into lactide, i.e. osculant product diminishing lactic acid, then open loop polycondensation synthesizing polylactic acid tree with special concentration processing procedure
Polylactic acid obtained is dried rouge, spare.
2) preparation of bioengineering plastics
50 parts of each component polylactic resin are weighed according to parts by weight, 75 parts of polycarbonate, 8 parts of chitosan, anti-impact modifier 5
Part, and each component is put into mixing and blending machine and is mixed, mixing revolving speed is 80 revs/min, mixing time 15 minutes;It will mix
Material after conjunction, which is placed in double screw extruder, to be squeezed out, and wherein temperature control parameter is, is fed 153 DEG C of section, compression section 170
DEG C, 188 DEG C of head temperature, 189 DEG C of die temperature.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (6)
1. a kind of bioengineering plastics, which directly extrudes after being blended by each raw material and is obtained, it is characterised in that:
According to the mass fraction, including each raw material: 50~85 parts of polylactic resin, 50~75 parts of polycarbonate, 3~8 parts of chitosan, anti-impact
Hit 5~20 parts of modifying agent.
2. bioengineering plastics according to claim 1, it is characterised in that: the polylactic resin, by following steps system
: (1) it extracts raw material and pure lactic acid is added and calcium carbonate ferments under the action of biocatalyst, obtain fermentation liquid;(2)
Sulfuric acid is added into fermentation liquid, is filtered after being sufficiently stirred, concentration is evaporated to filtrate, and filter again, obtains lactic acid;(3)
Lactic acid generates cyclic dimer lactide, then open loop polycondensation synthesizes polylactic resin by refining, being dehydrated oligomeric, Pintsch process.
3. bioengineering plastics according to claim 2, it is characterised in that: extraction raw material as described in step (1), the original
Material is selected from one of corn, wheat, cassava.
4. bioengineering plastics according to claim 2, it is characterised in that: the biocatalyst is selected from maltase, sugar
Change one of enzyme.
5. bioengineering plastics according to claim 2, it is characterised in that: the volume basis of sulfuric acid described in step (2)
Number is 20-30%.
6. bioengineering plastics according to claim 1, it is characterised in that: the anti-impact modifier is anti-selected from ACR
One of impact modifier or EVA anti-impact modifier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710507223.0A CN109135217A (en) | 2017-06-28 | 2017-06-28 | A kind of bioengineering plastics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710507223.0A CN109135217A (en) | 2017-06-28 | 2017-06-28 | A kind of bioengineering plastics |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109135217A true CN109135217A (en) | 2019-01-04 |
Family
ID=64805683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710507223.0A Pending CN109135217A (en) | 2017-06-28 | 2017-06-28 | A kind of bioengineering plastics |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109135217A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113416398A (en) * | 2021-07-07 | 2021-09-21 | 浙江汪洋高分子材料有限公司 | Biodegradable material modified polylactic acid and preparation method thereof |
-
2017
- 2017-06-28 CN CN201710507223.0A patent/CN109135217A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113416398A (en) * | 2021-07-07 | 2021-09-21 | 浙江汪洋高分子材料有限公司 | Biodegradable material modified polylactic acid and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101781467B (en) | Biomass-synthetic plastic product and method for preparing same | |
CN102093722B (en) | Edible collagen food packaging film and preparation method thereof | |
CN101805499B (en) | Full-degradable thermoplastic composite material and sheet thereof | |
CN101486806A (en) | Natural polymer / degradable polymer composite material and preparation thereof | |
CN102604164A (en) | Master batch capable of fully and biologically degrading plastic film and preparation method thereof | |
CN105504727B (en) | A kind of high tenacity fully-degradable polylactic acid based composites and preparation method thereof | |
CN105838047A (en) | Biodegradable modified lignin particles and production method thereof | |
CN102079849A (en) | Biomass degradable material preparation method and straw | |
CN106700460A (en) | Lignin modified PCL biodegradable plastic and preparation method thereof | |
CN102585464B (en) | Polylactic acid (PLA)/polybutylene succinate (PBS)/bamboo powder composite material and preparation method thereof | |
CN101230154A (en) | Konjak portuguese gansu polyose polyester composite material and method for preparing same | |
CN104194287A (en) | Modified poly-adipic acid/butylene terephthalate composite material containing coconut shell flour and preparation method thereof | |
CN107603254A (en) | A kind of degradable disponsable tableware and preparation method thereof | |
Machineni et al. | Review on valorization of lignocellulosic biomass for green plastics production: sustainable and cleaner approaches | |
CN109135217A (en) | A kind of bioengineering plastics | |
CN107022177A (en) | A kind of polylactic acid/starch/powder of straw Biobased degradable composite material and preparation method thereof | |
CN107043550A (en) | A kind of preparation method of environment-protecting paper cup | |
CN103724667B (en) | Thermoplastic biodegradable material and preparation method thereof | |
CN105086393B (en) | Plastic allowing PLA to be fully degraded and production method thereof | |
CN109206864A (en) | A kind of preparation method of bioengineering plastics | |
CN102161778B (en) | Calcium sulfate-corn starch-polycarbonate composite material and preparation method thereof | |
CN106084312A (en) | A kind of disposable tableware degradation plastic | |
CN109401245A (en) | A kind of degradable environment-friendly material | |
CN102408588B (en) | Completely biodegradable resin made of non-staple grain plant modified starch and preparation method thereof | |
CN103788485A (en) | Method for improving heat stability of polypropylene plastic |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |