CN106349727A - Novel wood-plastic composite - Google Patents
Novel wood-plastic composite Download PDFInfo
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- CN106349727A CN106349727A CN201610748456.5A CN201610748456A CN106349727A CN 106349727 A CN106349727 A CN 106349727A CN 201610748456 A CN201610748456 A CN 201610748456A CN 106349727 A CN106349727 A CN 106349727A
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
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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
- C08K2201/011—Nanostructured additives
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Wood Science & Technology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a novel wood-plastic composite. The wood-plastic composite is prepared from, by weight, from 60 - 70 parts of modified plastics, 80 -90 parts of modified wood meal, 3 -5 parts of glass fibers, 6 -9 parts of modified graphite, 10 -15 parts of heat-conducting ceramics, 1 - 3 parts of diatomite in powder, 3 -5 parts of calcium carbonate crystal whisker, 0.6 -0.8 part of sodium dodecyl benzene sulfonate, 1 - 3 parts of zinc stearate, 4 -7 parts of konjaku flour, 1 -3 parts of flexibilizer, 0.2 -0.6 part of nano-montmorillonite and 0.1 -0.3 part of rare-earth compound stabilizer. The wood-plastic composite has the advantages of high mechanical property and low water absorption, and has a good development prospect.
Description
Technical field
The present invention relates to a kind of novel wood-plastic composite material, belong to technical field of composite materials.
Background technology
Wood plastic composite (wood-plastic composites, wpc) is using thermoplastic as matrix, with warp
Cross the plant powder of pretreatment or the wood fiber as filler or reinforcement, by a certain percentage with add required various auxiliary agents and carry out
Mixing, a kind of composite being prepared into through the mode of extrusion, lamination, molding or injection.It has preferable springform
Amount, resistance to compression, the performance such as counter-bending, durable, also have raw material resources, cost economization, product plasticization simultaneously, use environmental protection
The features such as change and reclaiming.Therefore, wood plastic composite suffers from being widely applied in many fields.
At present, the research about wood plastic composite is emphatically to improve interface compatibility and improves processing technique to obtain
The more excellent material of mechanical property, processing characteristics, to meet the needs of various applications.China Patent Publication No. is
Cn105082303a discloses the patent of entitled " a kind of preparation method of high-intensity wood plastic composite ", and this preparation method is main
It is to process, using pectinase solution, the mechanical strength that wood materials improve wood plastic composite.Although it can obtain certain strong
Degree, but can't be satisfactory.Its water absorption rate ratio is larger simultaneously, and the wood powder easily producing in composite is mouldy strong with machinery
Degree is remarkably decreased.Therefore, the mechanical property continuing to explore with research wood plastic composite is necessary.
Content of the invention
Poor mechanical property for wood plastic composite in above-mentioned prior art and water absorption rate are than larger technical problem, basis
Inventing technical problem to be solved is to propose the novel wood-plastic composite material that a kind of mechanical property is good and water absorption rate is low.
A kind of novel wood-plastic composite material, is made up of each component of following weight: 60～70 parts of modified plastics, changes
80～90 parts of wood powder of property, 3～5 parts of glass fibre, 6～9 parts of modified graphite, 10～15 parts of thermal conductive ceramic, 1～3 part of diatomite in powder,
3～5 parts of calcium carbonate crystal whisker, 0.6～0.8 part of dodecylbenzene sodium sulfonate, 1～3 part of zinc stearate, 4～7 parts of Rhizoma amorphophalli powder, toughness reinforcing
1～3 part of agent, 0.2～0.6 part of nano imvite, 0.1～0.3 part of rare earth composite stabilizer.
Preferentially,
A kind of novel wood-plastic composite material, is made up of each component of following weight: 65 parts of modified plastics, innovation wood
85 parts of powder, 4 parts of glass fibre, 7 parts of modified graphite, 12 parts of thermal conductive ceramic, 2 parts of diatomite in powder, 4 parts of calcium carbonate crystal whisker, dodecane
0.7 part of base benzene sulfonic acid sodium salt, 2 parts of zinc stearate, 6 parts of Rhizoma amorphophalli powder, 2 parts of toughener, 0.4 part of nano imvite, rare earth stable composition
0.2 part of agent.
Described modified plastics is to prepare according to following steps:
1) described modified plastics is made up of each component of following weight: 80～100 parts of waste plastic, useless
Abandon 10～15 parts of rubber, 6～8 parts of polypropylene, 1～3 part of initiator, 1～3 part of polyisobutenyl succinic anhydride, ethylenediamine tetrem
2～4 parts of acid dianhydride, 1～3 part of poly- Azelaic Acid acid anhydride, 2～4 parts of maleic anhydride add ball mill ball milling to mix, and wherein, ball mill turns
Speed is 200～300r/min, Ball-milling Time is 20～30min；
2) by through step 1) process the compound that obtains and utilize double-screw extruding pelletizing, wherein, extruder rotating speed is 20～
30r/min, extrusion temperature is 140～170 DEG C, you can obtain modified plastics.
Described modified wood powder is to prepare according to following steps:
1) first 100 parts of wood powders are ground into 100～120 mesh, then with the hydroxide of 40～60 DEG C, mass fraction 3～5%
The alkali alcoholic solution of sodium and ethanol composition soaks 4～5h, then be placed in rotating speed be ball milling 15 on the ball mill of 200～300r/min～
20min；It is eventually adding the acetic acid of mass fraction 3～5% and ph value is adjusted to as 5～7, and Jia 1 successively～3 parts of sodium silicate, 1～3
Part sodium methyl silicate, 2～4 parts of Oleum Verniciae fordii and 0.1～0.3 nano zine oxide, then it is placed in the ball mill that rotating speed is 200～300r/min
Upper ball milling 50～60min, sucking filtration, dry, obtain modified wood powder 1；
2) by the silicon fluoride coupling agent of modified wood powder 1 and 1～4 part, it is ultrasonic on 30～40khz ultrasonic machine for being placed in frequency
20～30min, you can obtain modified wood powder.
Described modified graphite is to prepare according to following steps:
1) add dehydrated alcohol in graphite, and mix 4～6h with wet ball-milling, after drying in 450 DEG C of air atmosphere
Calcining 1h；
2) in step 1) in the powdered graphite that is obtained, sequentially add 0.4～0.8 part of silane coupler and 0.1～0.3 part poly-
Pyrusussuriensiss ester, ball milling mixing 6～8h, after drying add consumption account for the 3% of powder gross mass and mass concentration be 5% polyvinyl alcohol
After solution, and pelletize, re-compacted molding；
3) sinter 4h in 550 DEG C of air atmosphere, finally naturally cool to room temperature, be ground into 200～300 mesh, you can
To modified graphite.
Described thermal conductive ceramic is aluminium oxide-aluminium nitride-silicon nitride ceramics；Described initiator is methyl ethyl ketone peroxide；
Described toughener is ethylene-vinyl acetate copolymer.
Compared with prior art, the invention has the beneficial effects as follows:
1st, the present invention adopts polyisobutenyl succinic anhydride, ethylenediaminetetraacetic acid dianhydride, poly- Azelaic Acid acid anhydride and maleic anhydride
To improve the interface compatibility of wood plastic composite, to overcome the defect being grafted single anhydride, be more beneficial for wood powder and be dispersed in
In plastics, thus improving the interaction between plastics and wood powder, improve the mechanical property of wood plastic composite.It is also added with simultaneously
Scrap rubber, preferably can utilize resource, can improve the mechanical strength of wood plastic composite again.
2nd, the present invention is processed using alkali alcohol, chemical reagent processes and silicon fluoride coupling agent treatment carrys out modified wood powder.Multiple change
Property process wood powder, the defect of single treatment method can not only be overcome, the water suction of wood plastic composite can also be significantly reduced simultaneously
Rate, makes wood plastic composite reduce the infringement of mycete in actual application, extends the life-span of wood plastic composite.Additionally,
Importantly, multiple modified process the compatibility and the interface affinity that wood powder also greatly increases wood powder and plastics, thus
Wood plastic composite is made to have good mechanical property.
3rd, modified graphite not only plays filling and the effect of lubrication, can also improve the heat transfer property of material simultaneously.Wherein,
Lubrication can improve wood powder and the plastic interface compatibility and interface affinity, thus improving the mechanical property of wood plastic composite
Energy；Heat transfer property can improve crystalline rate and the degree of crystallinity of wood plastic composite, thus improving the mechanics of wood plastic composite
Performance and water absorption rate are so as to application is more extensive.
Specific embodiment
The present invention provides a kind of novel wood-plastic composite material, for making the purpose of the present invention, technical scheme and effect more clear
Chu, clearly, the present invention is described in more detail below.
A kind of novel wood-plastic composite material, is made up of each component of following weight: 60～70 parts of modified plastics, changes
80～90 parts of wood powder of property, 3～5 parts of glass fibre, 6～9 parts of modified graphite, 10～15 parts of thermal conductive ceramic, 1～3 part of diatomite in powder,
3～5 parts of calcium carbonate crystal whisker, 0.6～0.8 part of dodecylbenzene sodium sulfonate, 1～3 part of zinc stearate, 4～7 parts of Rhizoma amorphophalli powder, toughness reinforcing
1～3 part of agent, 0.2～0.6 part of nano imvite, 0.1～0.3 part of rare earth composite stabilizer.
Described modified plastics is to prepare according to following steps:
1) described modified plastics is made up of each component of following weight: 80～100 parts of waste plastic, useless
Abandon 10～15 parts of rubber, 6～8 parts of polypropylene, 1～3 part of initiator, 1～3 part of polyisobutenyl succinic anhydride, ethylenediamine tetrem
2～4 parts of acid dianhydride, 1～3 part of poly- Azelaic Acid acid anhydride, 2～4 parts of maleic anhydride add ball mill ball milling to mix, and wherein, ball mill turns
Speed is 200～300r/min, Ball-milling Time is 20～30min；
2) by through step 1) process the compound that obtains and utilize double-screw extruding pelletizing, wherein, extruder rotating speed is 20～
30r/min, extrusion temperature is 140～170 DEG C, you can obtain modified plastics.
Described modified wood powder is to prepare according to following steps:
1) first 100 parts of wood powders are ground into 100～120 mesh, then with the hydroxide of 40～60 DEG C, mass fraction 3～5%
The alkali alcoholic solution of sodium and ethanol composition soaks 4～5h, then be placed in rotating speed be ball milling 15 on the ball mill of 200～300r/min～
20min；It is eventually adding the acetic acid of mass fraction 3～5% and ph value is adjusted to as 5～7, and Jia 1 successively～3 parts of sodium silicate, 1～3
Part sodium methyl silicate, 2～4 parts of Oleum Verniciae fordii and 0.1～0.3 nano zine oxide, then it is placed in the ball mill that rotating speed is 200～300r/min
Upper ball milling 50～60min, sucking filtration, dry, obtain modified wood powder 1；
2) by the silicon fluoride coupling agent of modified wood powder 1 and 1～4 part, it is ultrasonic on 30～40khz ultrasonic machine for being placed in frequency
20～30min, you can obtain modified wood powder.
Described modified graphite is to prepare according to following steps:
1) add dehydrated alcohol in graphite, and mix 4～6h with wet ball-milling, after drying in 450 DEG C of air atmosphere
Calcining 1h；
2) in step 1) in the powdered graphite that is obtained, sequentially add 0.4～0.8 part of silane coupler and 0.1～0.3 part poly-
Pyrusussuriensiss ester, ball milling mixing 6～8h, after drying add consumption account for the 3% of powder gross mass and mass concentration be 5% polyvinyl alcohol
After solution, and pelletize, re-compacted molding；
3) sinter 4h in 550 DEG C of air atmosphere, finally naturally cool to room temperature, be ground into 200～300 mesh, you can
To modified graphite.
Described thermal conductive ceramic is aluminium oxide-aluminium nitride-silicon nitride ceramics；Described initiator is methyl ethyl ketone peroxide；
Described toughener is ethylene-vinyl acetate copolymer.
Embodiment 1
A kind of novel wood-plastic composite material, is made up of each component of following weight: 65 parts of modified plastics, innovation wood
85 parts of powder, 4 parts of glass fibre, 7 parts of modified graphite, 12 parts of thermal conductive ceramic, 2 parts of diatomite in powder, 4 parts of calcium carbonate crystal whisker, dodecane
0.7 part of base benzene sulfonic acid sodium salt, 2 parts of zinc stearate, 6 parts of Rhizoma amorphophalli powder, 2 parts of toughener, 0.4 part of nano imvite, rare earth stable composition
0.2 part of agent.
Embodiment 2
A kind of novel wood-plastic composite material, is made up of each component of following weight: 60 parts of modified plastics, innovation wood
80 parts of powder, 3 parts of glass fibre, 6 parts of modified graphite, 10 parts of thermal conductive ceramic, 1 part of diatomite in powder, 3 parts of calcium carbonate crystal whisker, dodecane
0.6 part of base benzene sulfonic acid sodium salt, 1 part of zinc stearate, 4 parts of Rhizoma amorphophalli powder, 1 part of toughener, 0.2 part of nano imvite, rare earth stable composition
0.1 part of agent.
Embodiment 3
A kind of novel wood-plastic composite material, is made up of each component of following weight: 70 parts of modified plastics, innovation wood
90 parts of powder, 5 parts of glass fibre, 9 parts of modified graphite, 15 parts of thermal conductive ceramic, 3 parts of diatomite in powder, 5 parts of calcium carbonate crystal whisker, dodecane
0.8 part of base benzene sulfonic acid sodium salt, 3 parts of zinc stearate, 7 parts of Rhizoma amorphophalli powder, 3 parts of toughener, 0.6 part of nano imvite, rare earth stable composition
0.3 part of agent.
Comparative example 1 (comparative example 1 is only that with the difference of embodiment 1, the plastics in comparative example 1 not through modification,
But directly use, remaining is with embodiment 1).
Comparative example 2 (comparative example 2 is only that with the difference of embodiment 1, the wood powder in comparative example 2 not through modification,
But directly use, remaining is with embodiment 1).
Comparative example 3 (comparative example 3 is only that with the difference of embodiment 1, the graphite in comparative example 3 not through modification,
But directly use, remaining is with embodiment 1).
Above-described embodiment 1-3, comparative example 1-3 and the prepared wood plastic composite of background technology (cn105082303a) are adopted
Tested with prior art, test result is as shown in table 1 below:
Table 1 wood-plastic composite performance test result
As can be seen that for the novel wood-plastic composite material of dissimilar preparation is relative to background technology, there is mechanical property
The low advantage of good and water absorption rate, is a kind of rising wood plastic composite.
Certainly, it is that the preferred embodiments of the disclosure is described in detail above, not the present invention is limited with this
Practical range, the equivalence changes that all principles under this invention, construction and structure are made, the protection of the present invention all should be covered by
In the range of.
Claims (6)
1. a kind of novel wood-plastic composite material it is characterised in that: be made up of each component of following weight: modified plastics 60
～70 parts, 80～90 parts of modified wood powder, 3～5 parts of glass fibre, 6～9 parts of modified graphite, 10～15 parts of thermal conductive ceramic, kieselguhr
1～3 part of powder, 3～5 parts of calcium carbonate crystal whisker, 0.6～0.8 part of dodecylbenzene sodium sulfonate, 1～3 part of zinc stearate, Rhizoma amorphophalli powder 4～
7 parts, 1～3 part of toughener, 0.2～0.6 part of nano imvite, 0.1～0.3 part of rare earth composite stabilizer.
2. novel wood-plastic composite material according to claim 1 it is characterised in that: by each component of following weight
Make: 65 parts of modified plastics, 85 parts of modified wood powder, 4 parts of glass fibre, 7 parts of modified graphite, 12 parts of thermal conductive ceramic, diatomite in powder 2
Part, 4 parts of calcium carbonate crystal whisker, 0.7 part of dodecylbenzene sodium sulfonate, 2 parts of zinc stearate, 6 parts of Rhizoma amorphophalli powder, toughener 2 part, nanometer cover
De- soil 0.4 part, 0.2 part of rare earth composite stabilizer.
3. novel wood-plastic composite material according to claim 1 it is characterised in that: described modified plastics is according to following
Step prepares:
1) described modified plastics is made up of each component of following weight: 80～100 parts of waste plastic, discarded rubber
10～15 parts of glue, 6～8 parts of polypropylene, 1～3 part of initiator, 1～3 part of polyisobutenyl succinic anhydride, ethylenediaminetetraacetic acid two
2～4 parts of acid anhydride, 1～3 part of poly- Azelaic Acid acid anhydride, 2～4 parts of maleic anhydride add ball mill ball milling to mix, and wherein, drum's speed of rotation is
200～300r/min, Ball-milling Time are 20～30min；
2) by through step 1) process the compound that obtains and utilize double-screw extruding pelletizing, wherein, extruder rotating speed is 20～30r/
Min, extrusion temperature is 140～170 DEG C, you can obtain modified plastics.
4. novel wood-plastic composite material according to claim 1 it is characterised in that: described modified wood powder is according to following
Step prepares:
1) first 100 parts of wood powders are ground into 100～120 mesh, then with 40～60 DEG C, the sodium hydroxide of mass fraction 3～5% with
The alkali alcoholic solution of ethanol composition soaks 4～5h, then to be placed in rotating speed be ball milling 15～20min on the ball mill of 200～300r/min；
It is eventually adding the acetic acid of mass fraction 3～5% and ph value is adjusted to as 5～7, and Jia 1 successively～3 parts of sodium silicate, 1～3 part of methyl
Sodium silicate, 2～4 parts of Oleum Verniciae fordii and 0.1～0.3 nano zine oxide, then to be placed in rotating speed be ball milling on the ball mill of 200～300r/min
50～60min, sucking filtration, dry, obtain modified wood powder 1；
2) by the silicon fluoride coupling agent of modified wood powder 1 and 1～4 part, be placed in frequency be 30～40khz ultrasonic machine on ultrasonic 20～
30min, you can obtain modified wood powder.
5. novel wood-plastic composite material according to claim 1 it is characterised in that: described modified graphite is according to following
Step prepares:
1) add dehydrated alcohol in graphite, and mix 4～6h with wet ball-milling, calcine in 450 DEG C of air atmosphere after drying
1h；
2) in step 1) be obtained powdered graphite in, sequentially add 0.4～0.8 part of silane coupler and 0.1～0.3 portion of poly- Pyrusussuriensis
Ester, ball milling mixing 6～8h, after drying add consumption account for the 3% of powder gross mass and mass concentration be 5% polyvinyl alcohol molten
After liquid, and pelletize, re-compacted molding；
3) sinter 4h in 550 DEG C of air atmosphere, finally naturally cool to room temperature, be ground into 200～300 mesh, you can changed
Property graphite.
6. novel wood-plastic composite material according to claim 1 it is characterised in that: described thermal conductive ceramic be aluminium oxide-
Aluminium nitride-silicon nitride ceramics；Described initiator is methyl ethyl ketone peroxide；Described toughener is for ethylene-vinyl acetate altogether
Polymers.
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| CN201610748456.5A CN106349727A (en) | 2016-08-29 | 2016-08-29 | Novel wood-plastic composite |
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|---|---|---|---|
| CN201610748456.5A CN106349727A (en) | 2016-08-29 | 2016-08-29 | Novel wood-plastic composite |
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Family
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| CN107286464A (en) * | 2017-06-28 | 2017-10-24 | 常州莱尚纺织品有限公司 | A kind of polypropylene wood plastic clad plate and preparation method thereof |
| CN107973988A (en) * | 2017-12-26 | 2018-05-01 | 毛玉珍 | A kind of modified polypropene and its processing technology |
| CN110885569A (en) * | 2019-12-13 | 2020-03-17 | 陕西速源节能科技有限公司 | Environment-friendly plastic material and preparation method thereof |
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| CN107286464A (en) * | 2017-06-28 | 2017-10-24 | 常州莱尚纺织品有限公司 | A kind of polypropylene wood plastic clad plate and preparation method thereof |
| CN107973988A (en) * | 2017-12-26 | 2018-05-01 | 毛玉珍 | A kind of modified polypropene and its processing technology |
| CN110885569A (en) * | 2019-12-13 | 2020-03-17 | 陕西速源节能科技有限公司 | Environment-friendly plastic material and preparation method thereof |
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