CN109627724A - A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material - Google Patents
A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material Download PDFInfo
- Publication number
- CN109627724A CN109627724A CN201811587977.2A CN201811587977A CN109627724A CN 109627724 A CN109627724 A CN 109627724A CN 201811587977 A CN201811587977 A CN 201811587977A CN 109627724 A CN109627724 A CN 109627724A
- Authority
- CN
- China
- Prior art keywords
- rice hulls
- powdered rice
- wood
- pha
- wood powder
- 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
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material preparation methods, are mainly made of culled wood, powdered rice hulls, polyhydroxyalkanoate (PHA) raw material.Culled wood is crushed first, wood powder is made, and alkali process carried out to wood powder obtained and powdered rice hulls, then treated wood powder and powdered rice hulls mixed with PHA, and coupling agent, which is added, keeps two kinds of materials compatible well, finally by the obtained environment-friendly sheet of hot-forming mode.Its good mechanical properties of the hard plate material as made from this method and degradation property is preferably very environmentally friendly, can be widely used in the fields such as decoration and furniture, and the product is nontoxic.
Description
Technical field
The present invention relates to biological plastics technical fields, specifically hard about a kind of culled wood/powdered rice hulls/PHA composite environmental-friendly
The preparation method of lumber.
Background technique
All trades and professions have the demand to timber and its product, while also producing a large amount of wooden wastes, and this waste material
A main feature be exactly majority be all leftover pieces after the processing of some timber, articles for daily use or scattered on the ground discarded
Branch, they be with it is scattered, ignored by people in the state of as refuse disposal.China is have more than ten00000000 populations big
State, wood waste quantity are extremely surprising.Only in timber process, the remaining timber of processing of 15%-30% will be generated
Waste material, along with the wood waste of other field product is accumulated over a long period, number is surprising.How to make full use of these wooden useless
Material is that we need to pay attention to.
Rice husk abundance manufactures wood plastic composite using crop residue rice husk, can reduce cost, saves big
Timber is measured, so that crop residue be made to turn waste into wealth.But rice husk structure and in terms of with timber exist very
The particle of big difference, rice husk is short and small, and intertexture combination degree is poor between particle, and rice husk is difficult to penetrate into it in wooden dipper shape structure coupling agent
Inside, to be difficult to happen reaction；The outer surface of rice husk is covered with smooth, fine and close, repellency silicon dioxide film circle, causes rice
Shell is not easy mutually to adsorb with coupling agent, adversely affects to the physical and mechanical property of composite material.
Polyhydroxyalkanoate (PHA) is that microorganism mainly utilizes the polysaccharide type organic such as cornstarch, passes through various hairs
Ferment effect generate biomass high molecular material, as carbon and energy in microbial cell stored substance and exist.PHA tool
Have the mechanical property similar with conventional plastic such as polypropylene (PP), polyethylene (PE), nature again can be degradable, because
This has a good application prospect.However, PHA relatively high gamma transition transition temperature (Tg) and fusing point, thermal stability compared with
Poor, degradable, the especially excessively high factor of its production cost greatly limits the application of PHAs.In order to solve these problems, it grinds
The person of studying carefully adds appropriate cheap plant fiber (crudefiber crop, wood powder, stalk etc.) in PHA, can both improve the mechanics of material in this way
Performance, and production cost can be substantially reduced, so that the application range of PHA plastics is more extensive.
Existing some technologies are by PHB, PHAV, wood-fibred, iron oxide red and calcium stearate blending extrusion or to be molded into
Type.Existing technology there are problems that main one be natural fiber and PHA plastics interface compatibility it is poor, and mechanical property
It is poor with thermal stability.
Summary of the invention
The technical problems to be solved by the invention, which are that, provides a kind of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate
The preparation method of material, its good mechanical properties of the hard plate material as made from this method and degradation property is preferably very environmentally friendly can
The fields such as decoration and furniture are widely used in, and the product is nontoxic.
In order to achieve the object of the present invention and advantage, the invention is realized by the following technical scheme:
A kind of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material, is made of following raw material: culled wood, gathers powdered rice hulls
Hydroxy fatty acid (PHA) is made wood powder by first crushing culled wood, and carries out at alkali to wood powder obtained and powdered rice hulls
Reason, then treated wood powder and powdered rice hulls are mixed with PHA, and coupling agent, which is added, keeps two kinds of materials compatible well, finally leads to
It crosses hot-forming mode and environment-friendly sheet is made.
A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material, comprising the following steps:
Raw material preparation: the first step is crushed culled wood with pulverizer, by taking 80-120 mesh, rice husk after standard sieve separation
Powder sorting and impurity elimination crushes sieve through pulverizer and goes slightly, and dries at 50-80 DEG C to constant weight；
Second step, wood powder and powdered rice hulls pre-process: powdered rice hulls and wood powder the freeze-day with constant temperature 2h at 50-80 DEG C are cooled to room
It is taken out after temperature, is respectively put into the NaOH solution of 3%wt after soak at room temperature 0.5h, with tap water repeated flushing, uses distilled water instead
It rinses, until leacheate is in neutrality, in 60 DEG C of freeze-day with constant temperature to constant weight；Wood powder, powdered rice hulls after alkali process are soaked respectively
Bubble is in coupling agent 4%-8%KH-550 ethanol solution, and KH-550: wood powder and KH-550: powdered rice hulls mass ratio is 1: 1, leaching
Bubble takes out after five minutes, places 1h at room temperature；Then by wood powder and powdered rice hulls in 3-5: 1-3 ratio in a high speed mixer
Mixing, it is spare to constant weight in 50-80 DEG C of drying；
PHA and pretreated wood powder/powdered rice hulls are put into high-speed mixer simultaneously by third step in 2-5: 1-3 ratio
0.5% maleic anhydride, the mixed at high speed 5-10min under 2000r/min revolving speed is added.By mixed material in mold
In sprawl uniformly, mold is placed in the rolling equipments such as vulcanizing press, preheats 3 minutes, makes at a temperature of 160-180 DEG C first
The softening of its surface, then hot-forming in the case where pressure is 10Mpa, cold pressing 3 minutes, pressure 10Mpa at room temperature again later, most
A kind of hard environment-protective plate, mechanical property, good thermal stability are made eventually.
The present invention can produce it is following the utility model has the advantages that
1) very good solution of the invention wood powder and powdered rice hulls and the problem of PHA plastic interface compatibility；
2) suitable processing method and processing conditions are used；
3) raw material sources are cheap, and preparation cost is lower and properties of product are good；
4) raw material is very environmentally friendly with product, is widely used.
Specific embodiment
The present invention is done below with reference to embodiment and is further explained, to enable those skilled in the art referring to specification text
Word can be according to implement.The following example is merely to illustrate the present invention, but is not used to limit practical range of the invention.
Embodiment 1
A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material, comprising the following steps:
The first step, raw material preparation: being crushed culled wood with pulverizer, by taking 80 mesh, powdered rice hulls point after standard sieve separation
Impurity elimination is selected, sieve is crushed through pulverizer and goes slightly, and dry at 60 DEG C to constant weight；
Second step, wood powder and powdered rice hulls pre-process: powdered rice hulls and wood powder the freeze-day with constant temperature 2h at 50-80 DEG C are cooled to room
It is taken out after temperature, is respectively put into the NaOH solution of 3%wt after soak at room temperature 0.5h, with tap water repeated flushing, uses distilled water instead
It rinses, until leacheate is in neutrality, in 60 DEG C of freeze-day with constant temperature to constant weight；Wood powder, powdered rice hulls after alkali process are soaked respectively
Bubble is in coupling agent 4%-8%KH-550 ethanol solution, and KH-550: wood powder and KH-550: powdered rice hulls mass ratio is 1: 1, leaching
Bubble takes out after five minutes, places 1h at room temperature；Then wood powder and powdered rice hulls are mixed in a high speed mixer in 3: 3 ratio,
It is spare to constant weight in 60 DEG C of dryings；
PHA and pretreated wood powder/powdered rice hulls are put into high-speed mixer and are added in 2: 2 ratio by third step
0.5% maleic anhydride, the mixed at high speed 5min under 2000r/min revolving speed.Mixed material is sprawled in a mold
Uniformly, mold is placed in the rolling equipments such as vulcanizing press, is preheated 3 minutes at a temperature of 160 DEG C first, keeps its surface soft
Change, it is then hot-forming in the case where pressure is 10Mpa, it is cold-pressed at room temperature again later 3 minutes, pressure 10Mpa, is finally made one
Kind hard environment-protective plate, mechanical property, good thermal stability.
Embodiment 2
A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material, comprising the following steps:
The first step, raw material preparation: being crushed culled wood with pulverizer, by taking 120 mesh, powdered rice hulls point after standard sieve separation
Impurity elimination is selected, sieve is crushed through pulverizer and goes slightly, and dry at 80 DEG C to constant weight；
Second step, wood powder and powdered rice hulls pre-process: powdered rice hulls and wood powder the freeze-day with constant temperature 2h at 80 DEG C, after being cooled to room temperature
It takes out, is respectively put into the NaOH solution of 3%wt after soak at room temperature 0.5h, with tap water repeated flushing, uses distilled water flushing instead,
Until leacheate is in neutrality, in 60 DEG C of freeze-day with constant temperature to constant weight；Wood powder, powdered rice hulls after alkali process are separately immersed in idol
Join in agent 4%-8%KH-550 ethanol solution, KH-550: wood powder and KH-550: powdered rice hulls mass ratio is 1: 1, is impregnated 5 minutes
After take out, place 1h at room temperature；Then wood powder and powdered rice hulls are mixed in a high speed mixer in 5: 3 ratio, in 80 DEG C
Drying is spare to constant weight；
PHA and pretreated wood powder/powdered rice hulls are put into high-speed mixer and are added in 5: 3 ratio by third step
0.5% maleic anhydride, the mixed at high speed 10min under 2000r/min revolving speed.Mixed material is sprawled in a mold
Uniformly, mold is placed in the rolling equipments such as vulcanizing press, is preheated 3 minutes at a temperature of 180 DEG C first, keeps its surface soft
Change, it is then hot-forming in the case where pressure is 10Mpa, it is cold-pressed at room temperature again later 3 minutes, pressure 10Mpa, is finally made one
Kind hard environment-protective plate, mechanical property, good thermal stability.
Claims (2)
1. a kind of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material, which is characterized in that be made of following raw material: culled wood,
Powdered rice hulls, polyhydroxyalkanoate (PHA).
2. a kind of preparation method of culled wood/powdered rice hulls as described in claim 1/PHA composite environmental-friendly hard plate material, feature
It is, comprising the following steps:
The first step, raw material preparation: being crushed culled wood with pulverizer, by taking 80-120 mesh, powdered rice hulls point after standard sieve separation
Impurity elimination is selected, sieve is crushed through pulverizer and goes slightly, and dry at 50-80 DEG C to constant weight；
Second step, wood powder and powdered rice hulls pre-process: powdered rice hulls and wood powder the freeze-day with constant temperature 2h at 50-80 DEG C, after being cooled to room temperature
It takes out, is respectively put into the NaOH solution of 3%wt after soak at room temperature 0.5h, with tap water repeated flushing, uses distilled water flushing instead,
Until leacheate is in neutrality, in 60 DEG C of freeze-day with constant temperature to constant weight；Wood powder, powdered rice hulls after alkali process are separately immersed in idol
Join in agent 4%-8%KH-550 ethanol solution, KH-550: wood powder and KH-550: powdered rice hulls mass ratio is 1: 1, is impregnated 5 minutes
After take out, place 1h at room temperature；Then wood powder and powdered rice hulls are mixed in a high speed mixer in 3-5: 1-3 ratio, in
50-80 DEG C of drying is spare to constant weight；
PHA and pretreated wood powder/powdered rice hulls are put into high-speed mixer and are added in 2-5: 1-3 ratio by third step
0.5% maleic anhydride, the mixed at high speed 5-10min under 2000r/min revolving speed.Mixed material is spread in a mold
Exhibition uniformly, mold is placed in the rolling equipments such as vulcanizing press, preheats 3 minutes at a temperature of 160-180 DEG C first, makes its table
Thin-skinnedization, it is then hot-forming in the case where pressure is 10Mpa, it is cold-pressed 3 minutes, pressure 10Mpa at room temperature again later, it is final to make
Obtain a kind of hard environment-protective plate, mechanical property, good thermal stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587977.2A CN109627724A (en) | 2018-12-24 | 2018-12-24 | A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587977.2A CN109627724A (en) | 2018-12-24 | 2018-12-24 | A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109627724A true CN109627724A (en) | 2019-04-16 |
Family
ID=66077318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811587977.2A Pending CN109627724A (en) | 2018-12-24 | 2018-12-24 | A kind of preparation method of culled wood/powdered rice hulls/PHA composite environmental-friendly hard plate material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109627724A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000129143A (en) * | 1998-10-26 | 2000-05-09 | Mitsubishi Gas Chem Co Inc | Biodegradable molded product, its material and its production |
| CN104774408A (en) * | 2015-04-25 | 2015-07-15 | 桂林理工大学 | Method for preparing PVC (polyvinyl chloride)-based wood-plastic composite material by using rice hull powder |
| CN107216624A (en) * | 2017-06-20 | 2017-09-29 | 苏州奥宇包装科技有限公司 | A kind of composite of wood powder polydactyl acid and preparation method thereof |
-
2018
- 2018-12-24 CN CN201811587977.2A patent/CN109627724A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000129143A (en) * | 1998-10-26 | 2000-05-09 | Mitsubishi Gas Chem Co Inc | Biodegradable molded product, its material and its production |
| CN104774408A (en) * | 2015-04-25 | 2015-07-15 | 桂林理工大学 | Method for preparing PVC (polyvinyl chloride)-based wood-plastic composite material by using rice hull powder |
| CN107216624A (en) * | 2017-06-20 | 2017-09-29 | 苏州奥宇包装科技有限公司 | A kind of composite of wood powder polydactyl acid and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103992517B (en) | One can be continuously produced fully-degradable starch base plastic alloy and preparation method thereof | |
| CN101367977B (en) | PVC fine foaming wood-plastic coiled material and method of preparing the same | |
| CN105038284B (en) | A kind of method that application wood fibre prepares wood plastic composite | |
| CN101602882B (en) | Bamboo powder filled biomass-based resin composite material and preparation method thereof | |
| CN102634072A (en) | Degradable thermoplastic rubber membrane using agricultural plant resources as main material and preparation method of degradable thermoplastic rubber membrane | |
| CN102690525A (en) | Wood-plastic composite material using sweet sorghum slag as enhanced phase and preparation method for wood-plastic composite material | |
| CN102417702B (en) | Production method of full-degradation nut shell particle/natural fibre synergy reinforcement lactyl composite material | |
| CN107586441B (en) | Wine lees-based composite material and process for preparing 3D printing wire by using same | |
| CN103627154B (en) | A kind of polylactic acid/starch Biobased degradable composite material and preparation method thereof | |
| CN101608027A (en) | With plant cot, fiber, plant powder is degradable plastic film of raw material and preparation method thereof | |
| CN101775200B (en) | Sawtooth oak cup/polylactic acid composite material and preparation method thereof | |
| CN110343397A (en) | A kind of bamboo powder full-biodegradable material and preparation method thereof | |
| CN101735581A (en) | Full biomass-based composite material, preparation method and application thereof | |
| CN104403111B (en) | Method for improving plasticity of wood fiber raw material | |
| CN102702577A (en) | Degradable rubber and plastic film with plant peel and shell, fiber, plant powder as raw materials and preparation method thereof | |
| CN101724178A (en) | Biological tuberous starch degradable plastic master batch, preparing method and application thereof | |
| CN101880412B (en) | Full-degradable injection molding composite material and preparation method thereof | |
| CN102241856A (en) | Bamboo-fiber-reinforced polypropylene composite material and preparation method thereof | |
| CN101870820B (en) | Antibacterial decorative material made by utilizing cotton stalk and preparation method thereof | |
| CN101693773A (en) | Acorn powder/polycaprolactone composite material and preparation method thereof | |
| CN104761808A (en) | Method for preparing polyethylene-based wood-plastic composite material from rice husk powder | |
| CN108530854A (en) | A kind of straw powder-PLA wood and plastic composite preparation method for material | |
| CN101333321A (en) | Method for preparing PVC wood-plastic composite material using graft copolymer as compatilizer | |
| CN104499380A (en) | Method for producing seedling breeding container from fibrous solid wastes | |
| CN107022177A (en) | A kind of polylactic acid/starch/powder of straw Biobased degradable 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190416 |