CN107739499A - A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing and preparation method thereof - Google Patents
A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing and preparation method thereof Download PDFInfo
- Publication number
- CN107739499A CN107739499A CN201710928092.3A CN201710928092A CN107739499A CN 107739499 A CN107739499 A CN 107739499A CN 201710928092 A CN201710928092 A CN 201710928092A CN 107739499 A CN107739499 A CN 107739499A
- Authority
- CN
- China
- Prior art keywords
- wheat straw
- polyadipate
- butylene terephthalate
- poly
- enhancing
- 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
- 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
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
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 mainly relates to wood plastic composite production technical field, the more particularly to degradable wood plastic composite field of environment protection biological.The present invention will carry out melt blending by the Wheat Straw after polyadipate/butylene terephthalate and silane treatment/poly (hydroxyalkanoate) esters composite, and extruding pelletization, hot pressing cold pressing forming process are passed sequentially through together with other processing aids, so as to improve Wheat Straw/deficiency of the poly (hydroxyalkanoate) esters composite in toughness, the shock resistance of reinforcing material.
Description
Technical field
The invention mainly relates to wood plastic composite production technical field, the more particularly to degradable wood moulding of environment protection biological is answered
Condensation material field.
Background technology
Wood plastic composite (Wood-Plastic Composites, WPCs) refer to by string (mainly have timber,
The powder such as stalk and other Non-woody plants) and plastics (mainly have polyethylene, polypropylene, polystyrene, polyvinyl chloride etc.
The biodegradable plastic such as the non-degradation plastic of petroleum base and PLA, polycaprolactone, poly butylene succinate) according to certain
Ratio mixes, and is formed in the presence of auxiliary agent (coupling agent, lubricant etc.) after the processing technologys such as extrusion forming, concora crush shaping
The composites such as sheet material, sheet material or section bar.
But traditional wood plastic composite is mainly using wood powder as raw material, but China's timber resources disparities between supply and demand are dashed forward at present
Go out, forbid felling with wildwood, the protection of ecological public welfare forests, timber breach is increasing.At the same time, in face of serious
" white pollution " problem, related personnel, which also begins to examine those in wood plastic composite closely again, to be difficult to by the petroleum base of natural degradation
Environmental pressure problem caused by plastics.
Wheat (wheat straw) latin name Triticum aestivum Linn, 1 year raw grass, is China
The staple food crop of northern area.China's wheat straw resource annual production is in 100,000,000 more than t, and wheat straw is as important agricultural crop straw
Resource, amount is big inexpensive, renewable, degradable, has huge value.Traditional Land use systems are difficult to produce high added value
Industrial products, make a low multiple use, substantial amounts of wheat straw does not obtain effective and reasonable utilization for a long time, causes wheat straw to turn into
A kind of waste resource, it is improper plus processing mode, burning is thrown aside, wastes the biomass resource of preciousness, while is brought tight
The environmental pollution of weight.Under current Sustainable Development Background, renewable resource is more and more paid attention to, and wheat straw needs effective
Higher value application, the utilization ways of wheat straw to be expanded, are turned waste into wealth, this measure can not only alleviate China's timber resources disparities between supply and demand,
Bigger benefit is created, also has far reaching significance to environmental protection.
Major product of the poly 3-hydroxy butyrate (PHB) as PHA class plastics, there is good biodegradability and life
Thing compatibility, it is widely used in the hydrosol, packaging, plastic products, medical embedded material, sutures, controlled drug sustained release
Carrier etc., but restricted by the defects of production cost is high, material fragility is big, process window is narrower, limit it and further develop.
For wood plastic composite processing industry, common modification method can be by by PHB plastics and string
It is blended etc. other cheap fillers and so as to realize reduces cost, improves cost performance.However, such processing method is usually associated with largely
Bulky grain thing is interspersed in plastic substrate, is easily formed the stress rupture point surrounded and watched, is caused product impact strength to be difficult to carry
Rise, limit the application of product.
Therefore, how to ensure the PHB wood plastic composites after filling plant fiber still have preferable shock resistance into
The main points paid close attention to for the present invention.Polyadipate/butylene terephthalate (PBAT) is that another crystallinity is low, and pliability is non-
Often good biodegradable plastics, price is lower with respect to PHB, has for the impact resistance of improvement degradation plastic at present
Good realistic meaning.
The content of the invention
Based on the problem of being told in background of invention and present situation, the present invention proposes one kind with polyadipate/terephthalic acid (TPA)
Fourth diester (PBAT) is that toughener strengthens the method that Wheat Straw manufactures wood plastic composite with poly butyric ester (PHB), purpose
Under the premise of product mechanical property is ensured, the deficiency of PHB shock resistances itself is reduced and because the strings such as Wheat Straw are filled out
Harmful effect of the addition of material to material shock resistance, so as to preferably reach the mesh for reducing product cost and improving cost performance
's.
The technology of the present invention content mainly includes：The preparation of Wheat Straw elementary cell, the blending of principle is with when technique, heat
Pressure/cold pressing forming process.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing, including
The component of following mass percent：Modified 30~50 parts of Wheat Straw powder, 50~70 parts of poly butyric ester (PHB) plastic grain,
5~15 parts of polyadipate/butylene terephthalate, 1~3 part of KH-550 silane couplers, 0.5~2.5 part of Tissuemat E, firmly
0.5~2.5 part of resin acid calcium, 2~5 parts of organo-tin het stabilizer.
The first step, crushing, the screening of Wheat Straw raw material：
Wheat Straw raw material is crushed using high speed disintegrator, and the raw material after crushing is passed through into 20 mesh, 40 mesh, 60 mesh respectively
Sieve, the Wheat Straw powder that gained particle is located to 40 to 60 mesh delivers to drying process.
Second step, the pretreatment and drying of Wheat Straw powder raw material
1~3 part of silane resin acceptor kh-550 is dissolved in volume ratio 9 using atomized spray processes：In 1 ethanol water, afterwards will
Silane coupler solution is sprayed onto Wheat Straw powder surface in sizing applicator, and by the Wheat Straw powder after processing in 103 ± 2 DEG C of bar
24h is dried under part to moisture content 1~2%.
3rd step, the mixed at high speed of raw material
Pretreatment and dried wheat straw powder are taken 30~50 parts, 50~70 parts of poly butyric ester PHB, polyadipate/to benzene
5~15 parts of dioctyl phthalate fourth diester, 0.5~2.5 part of Tissuemat E, 0.5~2.5 part of calcium stearate, organo-tin het stabilizer 2~5
Certain time is mixed with 3000r/min in part input high-speed mixer.
4th step, extruding pelletization
Mixed at high speed is completed to extrude in raw material input extruder, and crushes and is granulated after cooling down；Extruder each area's reference temperature point
Wei not be (by taking five area's extruders as an example)：One area：165 DEG C, 2nd area：170 DEG C, 3rd area：175 DEG C, 4th area：175 DEG C, head： 165
DEG C, rotating speed 100RPM.
5th step, compression molding
The pellet made is poured into the mould specified, is placed in being preheated in hot press, by certain hot pressing-cold-press process
Shaping can be prepared by the Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing.
Embodiment
Embodiment 1.
Process raw material.
Process equipment.
As shown in figure 1, Wheat Straw biodegradable of the present embodiment based on polyadipate/butylene terephthalate enhancing
The industrial production method of composite includes.
The first step, Wheat Straw raw material is crushed, and filter out mesh number and continue to employ for the wheat straw powder of 60 mesh or so.
Described breaking method is：Refinement crushing is carried out to Wheat Straw wood shavings particle using high speed disintegrator, and according to thing
Expect fineness D90 standards, being located at 60 mesh or so using industrial screen reservation mesh number continues to employ.
Second step, the pretreatment of wheat straw powder, 2 parts of silane resin acceptor kh-550s are dissolved in by volume ratio using atomizing spraying mode
9：In 1 ethanol water, silane coupler solution is sprayed onto to Wheat Straw powder surface in sizing applicator afterwards, and by after processing
Wheat Straw powder 24h is dried under conditions of 103 ± 2 DEG C to moisture content 1~2%.
The atomizing spraying method is:By the way of drum-type glue mixer atomizing spraying coupling agent, it is aided with ring type glue mixing
Rubs mutually is acted on so that coupling agent is scattered more uniform in Wheat straw between machine causes Wheat Straw.
3rd step, the mixed at high speed of raw material, 40 parts of dried wheat straw powder is taken, 60 parts of poly butyric ester plastics, gathers oneself
Diacid/7 parts of butylene terephthalate enhancing, 2 parts of Tissuemat E, 1 part of calcium stearate, organo-tin het stabilizer TF- 500B 5
Part, put into high-speed mixer and mixed 5 minutes with 3000r/min.
4th step, extruding pelletization, mixed at high speed is completed to extrude in raw material input extruder, and crushes and be granulated after cooling down,
Extruder temperature is set as an area：165 DEG C, 2nd area：170 DEG C, 3rd area：175 DEG C, 4th area：175 DEG C, head：165 DEG C, screw rod
Rotating speed 100RPM.
5th step, compression molding, pouring into 270mm × 270mm × 3mm appointed product moulds for particle, juxtaposition have been granulated it
In preheating 3min on hot press, through hot pressing-cold moudling, 170 DEG C, hot pressing pressure 4MPa, hot pressing time 6min of hot pressing temperature,
Cold press room temperature is cold-pressed, cold pressing pressure 4MPa, is cold-pressed time 12min, you can a kind of example is made and is based on polyadipate/to benzene two
Straw plastic composite materials drop in the enhancing of formic acid fourth diester.
Brief description of the drawings
Fig. 1 is the preparation stream of the Wheat Straw biodegradable composite material of polyadipate/butylene terephthalate enhancing
Cheng Tu.
Claims (4)
1. a kind of Wheat Straw biodegradable composite material and its preparation based on polyadipate/butylene terephthalate enhancing
Method, it includes used Wheat Straw degradable biological composite type and polyadipate/butylene terephthalate increases
Strong methods.
2. a kind of Wheat Straw biology based on polyadipate/butylene terephthalate enhancing according to claim 1 can
Degrading composite and preparation method thereof, it is characterised in that：Described Wheat Straw degradable biological composite type, its feature
It is combined at it by Wheat Straw and poly (hydroxyalkanoate) esters biological plastics, wherein poly (hydroxyalkanoate) esters biological plastics includes poly-
3-hydroxybutyrate ester（PHB）, it is poly-（3-hydroxybutyrate ester -3- hydroxyl valerates）（PHBV）, it is poly-（3-hydroxybutyrate ester -4- hydroxyls
Butyrate）（P3/4HB）, it is poly-（The hydroxycaproic ester of 3-hydroxybutyrate ester -3）（PHBH）.
3. a kind of Wheat Straw biology based on polyadipate/butylene terephthalate enhancing can drop according to claim 1
Solve composite and preparation method thereof, it is characterised in that：The mode of described polyadipate/butylene terephthalate enhancing is
Using high-temperature fusion blending method, and under the effect such as lubricating auxiliary agent Tissuemat E so that polyadipate/terephthalic acid (TPA) fourth two
Ester fully merges with Wheat Straw/PHA system, plays humidification.
4. a kind of Wheat Straw biology based on polyadipate/butylene terephthalate enhancing can drop according to claim 1
Solve processing and the manufacturing step of the composite in composite and preparation method thereof, it is characterised in that：The polyadipate/right
Terephtha-late enhancing method be using poly (hydroxyalkanoate) esters biological plastics as adhesive, by with by silane coupler
Pretreated Wheat Straw powder, polyadipate/butylene terephthalate and other processing aids are under certain temperature and pressure
It is placed in melt blending and granulation in extruder, and the process being molded in corresponding product mould by hot pressing-cold-press process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928092.3A CN107739499A (en) | 2017-10-09 | 2017-10-09 | A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928092.3A CN107739499A (en) | 2017-10-09 | 2017-10-09 | A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107739499A true CN107739499A (en) | 2018-02-27 |
Family
ID=61236694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928092.3A Pending CN107739499A (en) | 2017-10-09 | 2017-10-09 | A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107739499A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109535667A (en) * | 2018-11-01 | 2019-03-29 | 刘辉 | A kind of biology base degradative tableware |
| WO2021238297A1 (en) * | 2020-05-27 | 2021-12-02 | 李小文 | Plant fiber plasticized material and preparation method therefor |
| CN114437524A (en) * | 2022-02-07 | 2022-05-06 | 天津科技大学 | Preparation method of sugarcane cellulose-based degradable composite material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760037A (en) * | 2008-12-23 | 2010-06-30 | 金发科技股份有限公司 | Completely degraded plant powder modified thermoplastics composite material and preparation method thereof |
| CN102181165A (en) * | 2011-04-13 | 2011-09-14 | 北京中诺德瑞工业科技有限公司 | Production method of straw wood-like material and product thereof |
| CN104072953A (en) * | 2014-06-30 | 2014-10-01 | 浙江杭州鑫富药业股份有限公司 | Controlled degradation type full-biodegrade agricultural mulching film |
| CN107097322A (en) * | 2017-05-17 | 2017-08-29 | 北京林业大学 | A kind of string adhering technique based on PHA film |
-
2017
- 2017-10-09 CN CN201710928092.3A patent/CN107739499A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760037A (en) * | 2008-12-23 | 2010-06-30 | 金发科技股份有限公司 | Completely degraded plant powder modified thermoplastics composite material and preparation method thereof |
| CN102181165A (en) * | 2011-04-13 | 2011-09-14 | 北京中诺德瑞工业科技有限公司 | Production method of straw wood-like material and product thereof |
| CN104072953A (en) * | 2014-06-30 | 2014-10-01 | 浙江杭州鑫富药业股份有限公司 | Controlled degradation type full-biodegrade agricultural mulching film |
| CN107097322A (en) * | 2017-05-17 | 2017-08-29 | 北京林业大学 | A kind of string adhering technique based on PHA film |
Non-Patent Citations (1)
| Title |
|---|
| 欧阳春发: "PHBV/PBAT共混形态与性能研究", 《中国塑料》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109535667A (en) * | 2018-11-01 | 2019-03-29 | 刘辉 | A kind of biology base degradative tableware |
| WO2021238297A1 (en) * | 2020-05-27 | 2021-12-02 | 李小文 | Plant fiber plasticized material and preparation method therefor |
| CN114437524A (en) * | 2022-02-07 | 2022-05-06 | 天津科技大学 | Preparation method of sugarcane cellulose-based degradable composite material |
| CN114437524B (en) * | 2022-02-07 | 2023-09-19 | 天津科技大学 | Preparation method of sugarcane cellulose-based degradable composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102108196B (en) | Method for preparing polylactic acid degradable material | |
| CN106832807B (en) | Controllable full-degradable mulching film of cellulose-reinforced starch and preparation method thereof | |
| CN101712775B (en) | Preparation method of starch-base biodegradation material | |
| CN105315688A (en) | Modification of straw biomass and use method thereof | |
| CN101544785B (en) | Starch based nanocomposite degradable material and preparation method thereof | |
| CN104017340A (en) | Bagasse/cassava starch polylactic acid biodegradable material, and preparation method and application thereof | |
| WO2008028356A1 (en) | Inorganic material combination reinforced, heat-resistant biodegradable masterbatch pellets and its preparation | |
| CN102120870A (en) | Degradable plastic and production method thereof | |
| CN107739499A (en) | A kind of Wheat Straw biodegradable composite material based on polyadipate/butylene terephthalate enhancing and preparation method thereof | |
| CN107099060A (en) | A kind of environmental type starch base completely biodegradable material and its article fabrication methods | |
| CN105017731A (en) | Fully biodegradable material taking polylactic acid/polybuthylenesuccinate as basic material and preparation method of fully biodegradable material | |
| CN104212136A (en) | Polylactic acid anti-bacterial-activity packaging material and preparation method thereof | |
| CN103435882A (en) | Thermoplastic wood-plastic composite material and production method thereof | |
| KR101210301B1 (en) | Method of preparing naturally degradable food container using plant fiber powders | |
| CN103183936B (en) | Biodegradable composite material prepared by excessive processing materials of high-starch crops and preparation method thereof | |
| CN105295111A (en) | Total biomass composite injection moulding material and preparation method thereof | |
| CN105017738A (en) | Fully biodegradable material taking polylactic acid/polymethyl ethylene carbonic ester as basic material and preparation method of fully biodegradable material | |
| CN101579897A (en) | Manufacturing method of plant fibre products | |
| CN103897359A (en) | Biodegradable modified bamboo composite material and preparation method thereof | |
| CN106189326B (en) | Application of furfural residues in preparation of wood-plastic materials | |
| CN113474262A (en) | Soil plant compostable biodegradable substrate and method for producing the same | |
| CN104194287A (en) | Modified poly-adipic acid/butylene terephthalate composite material containing coconut shell flour and preparation method thereof | |
| CN107603177A (en) | A kind of degradable stalk Polyhydroxyalkanoatecomposite composite material based on montmorillonite enhancing and preparation method thereof | |
| CN101230154A (en) | Konjak portuguese gansu polyose polyester composite material and method for preparing same | |
| CN102093682A (en) | Light polylactic acid composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180227 |
|
| WD01 | Invention patent application deemed withdrawn after publication |