CN104530738B - PP/ABS wood-plastic composite plate and manufacturing method thereof - Google Patents
PP/ABS wood-plastic composite plate and manufacturing method thereof Download PDFInfo
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- CN104530738B CN104530738B CN201510003014.3A CN201510003014A CN104530738B CN 104530738 B CN104530738 B CN 104530738B CN 201510003014 A CN201510003014 A CN 201510003014A CN 104530738 B CN104530738 B CN 104530738B
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Abstract
The invention relates to a PP/ABS wood-plastic composite plate and a manufacturing method of the PP/ABS wood-plastic composite plate. The PP/ABS wood-plastic composite plate comprises, by weight, 60-80 parts of wood powder, 20-40 parts of a PP/ABS composite material and 1-3 parts of lubricant. The manufacturing method comprises the steps that 1, a PP/ABS composite material is prepared; (2) the PP/ABS wood-plastic composite plate is manufactured, wherein the oxidized PP/ABS composite material, the dried wood powder and the lubricant are placed in a high-speed mixer at a ratio to be mixed, the mixture is placed in a parallel twin-screw extruder for extrusion and plasticization, crushing is conducted, the crushed products are placed in a conical twin-screw extruder for extrusion and forming, and then the PP/ABS wood-plastic composite plate is manufactured. According to the PP/ABS wood-plastic composite plate and the manufacturing method of the PP/ABS wood-plastic composite plate, treatment is conducted with liquid having strong oxidizing property, so that the surface of a plastic matrix has polarity, and therefore the compatibility between plastic and a wood material is improved; in this way, a compatilizer is omitted, cost is reduced, and the damage to the environment is reduced.
Description
Technical field
The invention belongs to technical field of polymer composite materials, relate to a kind of PP/ABS wood-plastic composite panel
And preparation method thereof.
Background technology
Wood plastic composite (WPC) be with Plant fiber's (such as wood powder, bamboo powder, bran powder, powder of straw etc.) and plastics (as PE,
PP, PVC etc.) it is primary raw material, and add appropriate additive, it is similar to timber with what extrusion moulding or other method of forming were made
The section bar of characteristic or profile shapes, its product is mainly used as the succedaneum of timber.Wherein PP-WPC has a series of advantages: hardness,
Modulus is higher, and anti-wear performance is preferable, and heat distortion temperature is more high, and water absorption rate is low, does not damages by worms, and corrosion resistant candle property is better than timber, and
Can recycle as plastics, be a kind of excellent green material.
PP-WPC uses as the succedaneum of timber, it is desirable to it has good woodiness touch, and this is the heaviest for ornament materials
Want, improve the consumption of Plant fiber in PP-WPC and can not only significantly improve the woodiness touch of material, can effectively reduce it simultaneously
Production cost.And prepare, with extrusion moulding, the PP-WPC that Plant fiber's content is high and performance is good, in addition it is also necessary to join existing
Side's group and technique improve, and need to study formula and the process conditions impact on PP-WPC mechanical property.
Prior art has the most nonpolar due to thermoplastics such as PE, PP, is a kind of typical inert material,
And as the wood powder of implant, be mainly composed of cellulose, hemicellulose and extraction thing, chemical composition based on polysaccharide, molecule
In there is substantial amounts of hydroxyl, some hydroxyl forms intramolecular hydrogen bond so that wood powder has the strongest polarity, and adds and be not easy man-hour
Dispersion.The two compound tense, boundary strength is very poor, largely reducing the mechanical property of material, especially impact property.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency present in prior art, it is provided that a kind of PP/ABS
Wood-plastic composite panel and preparation method thereof, the method carries out oxidation processes to PP/ABS composite, improves plastics and wood powder
Interface compatibility, prepares the wood-plastic composite panel that mechanical strength is high, with low cost.
For solving above-mentioned technical problem, present invention provide the technical scheme that
Thering is provided a kind of PP/ABS wood-plastic composite panel, described wood-plastic composite panel is by the material preparation of following weight portion
Become: wood powder 60-80 part, PP/ABS composite 20-40 part, lubricant 1-3 part.
By such scheme, described lubricant is paraffin.
By such scheme, described PP/ABS composite is through oxidation processes and includes the component of following weight content:
PP resin 63-77 part, ABS resin 23-37 part, cross-linking agent 0.1-0.4 part, assistant crosslinking agent 1-4 part.
By such scheme, described PP/ABS composite oxidation processing technique is: under the conditions of 60-70 DEG C, and PP/ABS is multiple
Condensation material is placed in sulphuric acid-potassium dichromate mixed liquor immersion 10-15min, and described sulphuric acid-potassium dichromate mixed liquor is by 22.5 weight
Part K2CrO7, the 187.5 dense H of parts by volume2SO4, 84 parts by volume H2O is formulated.
Preferably, described cross-linking agent is cumyl peroxide.
Preferably, described assistant crosslinking agent is Triallyl isocyanurate.
The preparation method step of PP/ABS wood-plastic composite panel of the present invention is as follows:
(1) PP/ABS composite is prepared: put in double screw extruder by the raw material preparing PP/ABS composite
Melt extruding, extruded stock is cooled, pelletize obtains PP/ABS composite, prepares each component of raw material of PP/ABS composite
Weight proportion be: PP resin 63-77 part, ABS resin 23-37 part, cross-linking agent 0.1-0.4 part, assistant crosslinking agent 1-4 part；
(2) PP/ABS wood-plastic composite panel is prepared: step (1) gained PP/ABS composite is carried out oxidation processes, and
Wood powder is dried to water content < 2wt% weighs oxidation-treated PP/ABS composite 20-40 part, drying by weight proportion
After wood powder 60-80 part and lubricant 1-3 part, be placed in high-speed mixer mixing, prepare premix material, premix material is added parallel
In double screw extruder, extrusion plasticizing prepares plasticizing material, then adds conical double screw extruder extrusion molding by broken for plasticizing material,
Prepare PP/ABS wood-plastic composite panel.
By such scheme, the temperature in each district of step (1) described double screw extruder is: T1=145-170 DEG C, T2=180-
190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
By such scheme, step (2) described PP/ABS composite carries out oxidation processing technique and is: under the conditions of 60-70 DEG C,
PP/ABS composite is placed in sulphuric acid-potassium dichromate mixed liquor immersion 10-15min, described sulphuric acid-potassium dichromate mixed liquor
By 22.5 weight portion K2CrO7, the 187.5 dense H of parts by volume2SO4, 84 parts by volume H2O is formulated.
Preferably, step (2) described drying condition is 105 DEG C of drying 12h.
By such scheme, the working speed of step (2) described high-speed mixer is 900-1100 rev/min, incorporation time
For 5min；Described conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature sets 175,180,182,181 respectively
DEG C, mold temperature set is 180 DEG C.
By such scheme, the temperature in each district of step (2) described parallel double-screw extruder is: T1=160-180 DEG C, T2=
185-190 DEG C, T3=190-200 DEG C, T4=200 DEG C, TMould=195-205 DEG C.
The principle of the present invention is:
ABS resin is phenylethylene terpolymer, and it is by styrene (St) and acrylonitrile (AN), butadiene (Bd)
A kind of engineering plastics of three kinds of monomer graft copolymerizations.ABS is a kind of typical Plastics Toughening by Rubber system, ties for two-phase
Structure, resin-phase is continuous phase, and rubber is dispersion phase mutually, constitutes so-called " island " structure, and the interface of resin-phase and rubber phase is to connect
Branch layer, this structure makes the performance of resin there occurs significantly change, especially impact property.ABS is amorphous polymer, nothing
Significantly fusing point, melt-flow temperature is the highest, with the difference of contained three kinds of monomer ratio, i.e. has 160-190 DEG C of scope
, just there is decomposing phenomenon when being approximately higher than 285 DEG C in sufficiently mobility, and Heat stability is good, processing temperature wider range, simultaneously
There is nitrile key isopolarity group in ABS, can have the preferable compatibility with the Plant fiber of polarity, be suitable for preparing wood plastic composite.
But ABS resin impact strength and hot strength are low, use PP modified ABS, can form network nuclear phase, it is achieved both resins simultaneously
Mutual supplement with each other's advantages.
The present invention first prepares PP/ABS composite, then utilizes acid solution to plastics (PP/ABS composite) surface molecular
Carry out Strong oxdiative process, thus introduce carboxyl, aldehyde radical, carbonyl isopolarity group on its surface, further enhance it with highly polar
The compatibility of material wood powder, finally uses extrusion moulding to prepare PP/ABS wood-plastic composite panel.
The beneficial effects of the present invention is: 1, the present invention uses strong oxidizing property liquid handling to give plastic resin matrix
(PP/ABS composite) surface with polarity improve plastics and timber biphase between interface compatibility, do not affecting wood plastic
Avoid the use of compatilizer on the premise of material performance, reduce cost, decrease the infringement to environment；2, the present invention makes
PP/ABS wood-plastic composite panel has PP base wood-plastic composite material and the advantage of ABS base wood-plastic composite material concurrently, has good power
(bending strength is up to 46.6MPa to learn performance；Bending modulus is up to 2644MPa；Impact strength is up to 13.9MJ/m-2；Hot strength
Up to 33MPa), it is the wood plastic composite of a kind of super quality and competitive price.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with embodiment, the present invention is made
Describe in further detail.
Embodiment 1
Weigh 63gPP resin, 27gABS resin, 0.1g cross-linking agent (cumyl peroxide), 1g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven at a temperature of 80 DEG C and be dried 4h；
Being sent in double screw extruder melt extrude by the PP resin weighed, ABS resin, cross-linking agent, assistant crosslinking agent, extruded stock is through water
Groove cools down, and is drawn to pelleter pelletize and obtains PP/ABS composite, the temperature in each district of double screw extruder during melt extruding
Degree is: T1=145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 20g at a temperature of 65 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 15min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is K2CrO722.5g, dense H2SO4187.5mL, H2O
84mL。
First at 105 DEG C, wood powder being dried 12h, to water content, < then 2wt% weighs the dry wood powder of 80g, 20g above-mentioned treated
After PP/ABS composite, 1g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepare premix
Material.Premix material is added extrusion plasticizing in parallel double-screw extruder and prepares the plasticizing material (temperature in each district of parallel double-screw extruder
Degree is: T1=160-180 DEG C, T2=185-190 DEG C, T3=190-200 DEG C, T4=200 DEG C, TMould=195-205 DEG C), then will mould
Material is broken adds conical double screw extruder extrusion molding, and prepared cross section is the PP/ABS wood plastics composite of 80mm 4.5mm
Sheet material.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature sets 175,180,182,181 DEG C respectively, mould
Tool temperature is set as 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Embodiment 2
Weigh 63gPP resin, 37gABS resin, 0.4g cross-linking agent (cumyl peroxide), 4g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven and to be dried；The PP tree that will weigh
Fat, ABS resin, cross-linking agent, assistant crosslinking agent are sent in double screw extruder melt extrude, and extruded stock cools down through tank, traction
Obtaining PP/ABS composite to pelleter pelletize, during melt extruding, the temperature in each district of double screw extruder is: T1=
145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 25g at a temperature of 65 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 15min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is identical with embodiment one.
First by wood powder drying, to water content, < then 2wt% weighs the dry wood powder of 80g, the above-mentioned PP/ABS after treatment of 20g
Composite, 1g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepares premix material.By premix material
Add extrusion plasticizing in parallel double-screw extruder and prepare plasticizing material, then plasticizing is expected, and the broken conical double screw extruder that adds squeezes
Go out molding, prepare PP/ABS wood-plastic composite panel.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature is respectively
Setting 175,180,182,181 DEG C, mold temperature set is 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Embodiment 3
Weigh 63gPP resin, 37gABS resin, 0.1g cross-linking agent (cumyl peroxide), 1g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven and to be dried；The PP tree that will weigh
Fat, ABS resin, cross-linking agent, assistant crosslinking agent are sent in double screw extruder melt extrude, and extruded stock cools down through tank, traction
Obtaining PP/ABS composite to pelleter pelletize, during melt extruding, the temperature in each district of double screw extruder is: T1=
145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 30g at a temperature of 65 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 10min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is identical with embodiment one.
First by wood powder drying, to water content, < then 2wt% weighs the dry wood powder of 60g, the above-mentioned PP/ABS after treatment of 40g
Composite, 1g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepares premix material.By premix material
Add extrusion plasticizing in parallel double-screw extruder and prepare plasticizing material, then plasticizing is expected, and the broken conical double screw extruder that adds squeezes
Go out molding, prepare PP/ABS wood-plastic composite panel.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature is respectively
Setting 175,180,182,181 DEG C, mold temperature set is 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Embodiment 4
Weigh 63gPP resin, 37gABS resin, 0.1g cross-linking agent (cumyl peroxide), 1g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven and to be dried；The PP tree that will weigh
Fat, ABS resin, cross-linking agent, assistant crosslinking agent are sent in double screw extruder melt extrude, and extruded stock cools down through tank, traction
Obtaining PP/ABS composite to pelleter pelletize, during melt extruding, the temperature in each district of double screw extruder is: T1=
145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 35g at a temperature of 65 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 15min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is identical with embodiment one.
First by wood powder drying, to water content, < then 2wt% weighs the dry wood powder of 60g, the above-mentioned PP/ABS after treatment of 40g
Composite, 3g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepares premix material.By premix material
Add extrusion plasticizing in parallel double-screw extruder and prepare plasticizing material, then plasticizing is expected, and the broken conical double screw extruder that adds squeezes
Go out molding, prepare PP/ABS wood-plastic composite panel.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature is respectively
Setting 175,180,182,181 DEG C, mold temperature set is 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Embodiment 5
Weigh 77gPP resin, 23gABS resin, 0.1g cross-linking agent (cumyl peroxide), 1g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven and to be dried；The PP tree that will weigh
Fat, ABS resin, cross-linking agent, assistant crosslinking agent are sent in double screw extruder melt extrude, and extruded stock cools down through tank, traction
Obtaining PP/ABS composite to pelleter pelletize, during melt extruding, the temperature in each district of double screw extruder is: T1=
145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 40g at a temperature of 60 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 15min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is identical with embodiment one.
First by wood powder drying, to water content, < then 2wt% weighs the dry wood powder of 80g, the above-mentioned PP/ABS after treatment of 20g
Composite, 1g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepares premix material.By premix material
Add extrusion plasticizing in parallel double-screw extruder and prepare plasticizing material, then plasticizing is expected, and the broken conical double screw extruder that adds squeezes
Go out molding, prepare PP/ABS wood-plastic composite panel.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature is respectively
Setting 175,180,182,181 DEG C, mold temperature set is 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Embodiment 6
Weigh 77gPP resin, 23gABS resin, 0.4g cross-linking agent (cumyl peroxide), 4g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven and to be dried；The PP tree that will weigh
Fat, ABS resin, cross-linking agent, assistant crosslinking agent are sent in double screw extruder melt extrude, and extruded stock cools down through tank, traction
Obtaining PP/ABS composite to pelleter pelletize, during melt extruding, the temperature in each district of double screw extruder is: T1=
145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 40g at a temperature of 70 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 15min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is identical with embodiment one.
First by wood powder drying, to water content, < then 2wt% weighs the dry wood powder of 60g, the above-mentioned PP/ABS after treatment of 40g
Composite, 3g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepares premix material.By premix material
Add extrusion plasticizing in parallel double-screw extruder and prepare plasticizing material, then plasticizing is expected, and the broken conical double screw extruder that adds squeezes
Go out molding, prepare PP/ABS wood-plastic composite panel.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature is respectively
Setting 175,180,182,181 DEG C, mold temperature set is 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Embodiment 7
Weigh 70gPP resin, 30gABS resin, 0.2g cross-linking agent (cumyl peroxide), 2g assistant crosslinking agent (three allyls
Base isocyanuric acid ester) stand-by, the PP resin, the ABS resin that are weighed first to be placed in convection oven and to be dried；The PP tree that will weigh
Fat, ABS resin, cross-linking agent, assistant crosslinking agent are sent in double screw extruder melt extrude, and extruded stock cools down through tank, traction
Obtaining PP/ABS composite to pelleter pelletize, during melt extruding, the temperature in each district of double screw extruder is: T1=
145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould=190-205 DEG C.
Take the PP/ABS composite of the above-mentioned preparation of 40g at a temperature of 65 DEG C through sulphuric acid-potassium dichromate mixed liquid dipping
After 15min, washing is dried.Wherein sulphuric acid-potassium dichromate mixed liquor component is identical with embodiment one.
First by wood powder drying, to water content, < then 2wt% weighs the dry wood powder of 70g, the above-mentioned PP/ABS after treatment of 30g
Composite, 2g lubricant (paraffin), be placed in high-speed mixer and mix discharge after about 5min, prepares premix material.By premix material
Add extrusion plasticizing in parallel double-screw extruder and prepare plasticizing material, then plasticizing is expected, and the broken conical double screw extruder that adds squeezes
Go out molding, prepare PP/ABS wood-plastic composite panel.Conical double screw extruder extruded velocity is 0.6m/min, and barrel temperature is respectively
Setting 175,180,182,181 DEG C, mold temperature set is 180 DEG C.
Testing the PP/ABS wood-plastic composite panel prepared by the present embodiment, test result is shown in Table 1.
Table 1
| Bending strength (MPa) | Bending modulus (MPa) | Impact strength (MJ/m-2) | Hot strength (MPa) | |
| Performance indications | >40 | >2000 | >8.0 | >20 |
| Testing standard | GB/T9341-2000 | GB/T9341-2000 | GB/T1043-1993 | GB/T528-1998 |
| Embodiment 1 | 40.2 | 2644 | 8.5 | 22 |
| Embodiment 2 | 45.8 | 2390 | 13.5 | 30 |
| Embodiment 3 | 43.7 | 2390 | 11.4 | 26 |
| Embodiment 4 | 44.0 | 2408 | 12.1 | 28 |
| Embodiment 5 | 43.9 | 2410 | 10.7 | 24 |
| Embodiment 6 | 46.6 | 2372 | 13.7 | 33 |
| Embodiment 7 | 46.1 | 2385 | 13.9 | 32 |
PP/ABS wood-plastic composite panel bending strength that as seen from the above embodiment prepared by the present invention, bending modulus, impact
Intensity all can reach the use requirement of wood-plastic composite panel, has market prospect.
Claims (7)
1. a PP/ABS wood-plastic composite panel, it is characterised in that described wood-plastic composite panel is by the material system of following weight portion
For forming: wood powder 60-80 part, PP/ABS composite 20-40 part, lubricant 1-3 part；
Described PP/ABS composite is through oxidation processes and includes the component of following weight content: PP resin 63-77 part,
ABS resin 23-37 part, cross-linking agent 0.1-0.4 part, assistant crosslinking agent 1-4 part；
Described PP/ABS composite oxidation processing technique is: under the conditions of 60-70 DEG C, PP/ABS composite is placed in sulphuric acid-
Soaking 10-15min in potassium dichromate mixed liquor, described sulphuric acid-potassium dichromate mixed liquor is by 22.5 weight portion K2Cr2O7, 187.5
The dense H of parts by volume2SO4, 84 parts by volume H2O is formulated, and the relation of weight portion and parts by volume is pressed g/mL and calculated.
PP/ABS wood-plastic composite panel the most according to claim 1, it is characterised in that described lubricant is paraffin.
PP/ABS wood-plastic composite panel the most according to claim 1, it is characterised in that described cross-linking agent is that peroxidating two is different
Propyl benzene；Described assistant crosslinking agent is Triallyl isocyanurate.
4. the preparation method of the arbitrary described PP/ABS wood-plastic composite panel of claim 1-3, it is characterised in that include with
Lower step:
(1) PP/ABS composite is prepared: put into by the raw material preparing PP/ABS composite in double screw extruder melted
Extrusion, extruded stock is cooled, pelletize obtains PP/ABS composite, prepares the weight of each component of raw material of PP/ABS composite
Amount proportioning is: PP resin 63-77 part, ABS resin 23-37 part, cross-linking agent 0.1-0.4 part, assistant crosslinking agent 1-4 part；
(2) PP/ABS wood-plastic composite panel is prepared: step (1) gained PP/ABS composite is carried out oxidation processes, and by wood
Powder dries to water content that < 2wt%, after weighing oxidation-treated PP/ABS composite 20-40 part by weight proportion, drying
Wood powder 60-80 part and lubricant 1-3 part, be placed in high-speed mixer mixing, prepares premix material, premix material adds parallel pair of spiral shell
In bar extruder, extrusion plasticizing prepares plasticizing material, then adds conical double screw extruder extrusion molding by broken for plasticizing material, prepares
PP/ABS wood-plastic composite panel.
The preparation method of PP/ABS wood-plastic composite panel the most according to claim 4, it is characterised in that step (1) is described double
The temperature in each district of screw extruder is: T1=145-170 DEG C, T2=180-190 DEG C, T3=190-195 DEG C, T4=200 DEG C, TMould
=190-205 DEG C.
The preparation method of PP/ABS wood-plastic composite panel the most according to claim 4, it is characterised in that step (2) described height
The working speed of speed mixer is 900-1100 rev/min, and incorporation time is 5min；Described conical double screw extruder extrusion speed
Degree is 0.6m/min, and barrel temperature sets 175 respectively, 180,182,181 DEG C, and mold temperature set is 180 DEG C.
The preparation method of PP/ABS wood-plastic composite panel the most according to claim 4, it is characterised in that step (2) is described flat
The temperature in each district of row double screw extruder is: T1=160-180 DEG C, T2=185-190 DEG C, T3=190-200 DEG C, T4=200
DEG C, TMould=195-205 DEG C.
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| CN111146521A (en) * | 2019-12-17 | 2020-05-12 | 界首市双特新材料科技有限公司 | Harmless regeneration method for waste lead-acid battery shell |
| CN112226009A (en) * | 2020-09-09 | 2021-01-15 | 中广核俊尔（上海）新材料有限公司 | Blow molding ABS material with high melt strength and high toughness and preparation method thereof |
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| CN101724190A (en) * | 2008-10-14 | 2010-06-09 | 李秋义 | Asbestos fiber reinforced thermoplastic base wood and plastic composite material and preparing method thereof |
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| CN101724190A (en) * | 2008-10-14 | 2010-06-09 | 李秋义 | Asbestos fiber reinforced thermoplastic base wood and plastic composite material and preparing method thereof |
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| CN104530738A (en) | 2015-04-22 |
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