CN115160813A - Preparation method of degradable wood-plastic composite material - Google Patents
Preparation method of degradable wood-plastic composite material Download PDFInfo
- Publication number
- CN115160813A CN115160813A CN202210906579.2A CN202210906579A CN115160813A CN 115160813 A CN115160813 A CN 115160813A CN 202210906579 A CN202210906579 A CN 202210906579A CN 115160813 A CN115160813 A CN 115160813A
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- composite material
- plastic composite
- wood
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- 238000002360 preparation method Methods 0.000 title claims abstract description 52
- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 37
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000010902 straw Substances 0.000 claims abstract description 53
- 229920003023 plastic Polymers 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 29
- 238000010525 oxidative degradation reaction Methods 0.000 claims abstract description 7
- 239000011941 photocatalyst Substances 0.000 claims abstract description 7
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 7
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 7
- 239000013543 active substance Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000012867 bioactive agent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of composite material preparation, in particular to a preparation method of a degradable wood-plastic composite material. The method comprises the following steps: s1: taking a plurality of straws, arranging the straws on a preparation device to form a circle in the middle, and radiating a plurality of linear shapes outwards; s2: heating and mixing polycaprolactone, a biological active agent, a photocatalyst and a thermal oxidative degradation promoter to prepare a plastic melt; s3: pouring the plastic melt onto a plurality of straws on the preparation device, so that the plastic melt is combined with the plurality of straws; s4: and waiting for the molten plastic to be cooled and solidified to prepare the wood-plastic composite material. The plastic melt can be combined with a plurality of straws.
Description
Technical Field
The invention relates to the field of composite material preparation, in particular to a preparation method of a degradable wood-plastic composite material.
Background
Wood-plastic composites, sometimes also called composite wood, are used for outdoor deck flooring, but also for railings, fencing, landscape wood, cladding and siding, park benches, molding and finishing, prefabricated housing. Due to the addition of organic materials, wood plastic composites are typically processed at much lower temperatures than traditional plastics during extrusion and injection molding. The existing wood-plastic composite material can be divided into a plurality of pieces after being broken, and cannot form a whole after being broken, and the requirements of the using conditions can not be met under the using conditions that the wood-plastic composite material is not expected to be divided into a plurality of pieces after being broken.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the preparation method of the degradable wood-plastic composite material, which has the beneficial effect that the plastic melt can be combined with a plurality of straws, and the straws still form a whole after being broken.
A preparation method of a degradable wood-plastic composite material comprises the following steps:
s1: taking a plurality of straws, arranging the straws on a preparation device to form a circle in the middle, and radiating a plurality of linear shapes outwards;
s2: heating and mixing polycaprolactone, a biological active agent, a photocatalyst and a thermal oxidative degradation promoter to prepare a plastic melt;
s3: pouring the plastic melt onto a plurality of straws on a preparation device to combine the plastic melt with the plurality of straws;
s4: and waiting for the molten plastic to be cooled and solidified to prepare the wood-plastic composite material.
The mass portion ratio of the polycaprolactone to the bioactive agent to the photocatalyst to the thermal-oxidative degradation promoter is 30:1:1:2.
the straw is dry straw.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a preparation method of a degradable wood-plastic composite material;
FIG. 2 is a first schematic structural view of a manufacturing apparatus;
FIG. 3 is a second schematic structural view of a manufacturing apparatus;
FIG. 4 is a third schematic view of the manufacturing apparatus;
FIG. 5 is a first schematic view of the structure of the slot box;
FIG. 6 is a second schematic structural view of the cell box;
FIG. 7 is a first structural diagram of an outer ring;
FIG. 8 is a second structural diagram of the outer ring;
FIG. 9 is a schematic structural view of a cross beam;
FIG. 10 is a first structural view of the T-shaped frame;
fig. 11 is a structural schematic diagram of a T-shaped frame.
In the figure: a pod cartridge 101; a boss 102; a push post 103; a bottom strip 104; a leg 105; a flight 106;
an outer ring 201; an inner ring 202; a rubber sheet 203; a bottom opening 204; a diverging column 205; a rubber strip 206; a connecting column 207; an L-shaped post 208;
a cross beam 301; side plates 302; a hand-screwed screw 303; a bottom piece 304; a seat block 305; a bevel 306;
a T-shaped frame 401; a round bar 402; a plug-in seat 403; a rubber sleeve 404.
Detailed Description
A preparation method of a degradable wood-plastic composite material comprises the following steps:
s1: taking a plurality of straws, arranging the straws on a preparation device to form a circle in the middle, and radiating a plurality of linear shapes outwards;
s2: heating and mixing polycaprolactone, a biological active agent, a photocatalyst and a thermal oxidative degradation promoter to prepare a plastic melt;
s3: pouring the plastic melt onto a plurality of straws on a preparation device to combine the plastic melt with the plurality of straws;
s4: and waiting for the molten plastic to be cooled and solidified to prepare the wood-plastic composite material.
The mass portion ratio of the polycaprolactone to the bioactive agent to the photocatalyst to the thermal oxidative degradation promoter is 30:1:1:2.
the straw is dry straw.
As shown in fig. 5 to 8, this example can achieve the effect of preventing the wood-plastic composite from being divided into a plurality of pieces after being broken.
The preparation device comprises a groove box 101, an outer ring 201 and an inner ring 202, wherein the outer ring 201 and the inner ring 202 are arranged in the groove box 101, the outer ring 201 and the inner ring 202 are coaxially arranged, an annular groove is formed between the outer ring 201 and the inner ring 202, then straw is paved in the annular groove, the straw is arranged on the groove box 101 in an annular shape, then plastic melt is led into the groove box 101, the plastic melt is solidified, then the annular straw is arranged in plastic, the plastic can still be connected through the straw after being broken through the annular straw in the middle, the broken straw is also added into the plastic melt, the straw is equivalent to wood in the wood-plastic composite material, and the wood-plastic composite material is prevented from being divided into a plurality of pieces after being broken.
As shown in fig. 5-8, this example may achieve the effect of having the outer ring 201 and the inner ring 202 in a fixed position each time they enter the pod 101.
The preparation device further comprises the convex seat 102, the connecting columns 207 and the L-shaped columns 208, the connecting columns 207 are welded on the upper sides of the outer ring 201 and the inner ring 202, the connecting columns 207 are welded on the L-shaped columns 208, an annular groove is formed between the outer ring 201 and the inner ring 202, the rear side of the groove box 101 is connected with the convex seat 102 through screws, and the rear part of the L-shaped column 208 is inserted on the convex seat 102. The boss 102 allows the L-shaped post 208 to be inserted such that the outer ring 201 and the inner ring 202 are in a fixed position each time they enter the pod 101; both the outer ring 201 and the inner ring 202 are connected to an L-shaped post 208 by a connecting post 207 such that the outer ring 201 and the inner ring 202 are coaxially disposed.
As shown in fig. 7 to 8, this example can achieve the effect of avoiding the disconnection after the breakage of the wood-plastic composite.
Because the preparation facilities still include and diverge post 205, the outside of outer loop 201 is provided with a plurality of posts 205 of diverging, all is provided with the bar groove on a plurality of posts 205 of diverging. The straw can be inserted into the strip-shaped grooves, and then the straw in the strip-shaped grooves is combined with the straw in the annular groove, so that the straw is in a sun divergent shape, the straw is arranged at each position of the wood-plastic composite material, and the situation that the wood-plastic composite material is disconnected after being broken is effectively avoided through the arrangement of the straw in the sun divergent shape.
As shown in fig. 7 to 8, this example can achieve the effect of sufficiently combining the plastic melt with the straw in the sun-divergent shape.
Because the preparation device also comprises a bottom port 204, the lower parts of the outer ring 201 and the divergent column 205 are both provided with the bottom port 204, the arrangement of the bottom port 204 can ensure that the plastic melt can flow into the annular groove and the straw in the strip-shaped groove, and further ensure that the plastic melt is fully combined with the straw in the sun divergent shape.
As shown in fig. 7, this example can achieve the effect of preventing the straw from running out from the upper side of the strip-shaped groove.
The preparation device also comprises a rubber sheet 203, and a plurality of rubber sheets 203 are adhered to the upper side of each divergence column 205. The rubber sheets 203 can block the straws in the strip-shaped groove and prevent the straws from running out of the upper side of the strip-shaped groove, and the rubber sheets 203 have elasticity and do not influence manual placement of the straws in the strip-shaped groove.
This example can achieve the effect of preventing the straw from running out from the upper side of the annular groove, as shown in fig. 7.
Since the manufacturing apparatus further includes a rubber strip 206, a plurality of rubber strips 206 are adhered to the upper side of the inner ring 202, and the plurality of rubber strips 206 are adhered to the upper side of the inner ring 202. The plurality of rubber strips 206 may block the straw in the annular groove, preventing the straw from escaping from the upper side of the annular groove, and the plurality of rubber strips 206 have elasticity that does not affect manual placement of the straw into the annular groove.
As shown in fig. 5-6, this example may achieve the effect of securing two legs 105 to the ground.
Because the preparation device also comprises a supporting leg 105, the lower side of the groove box 101 is connected with two supporting legs 105 through screws, and the two supporting legs 105 are provided with insertion holes. The sockets on the two legs 105 allow screws to be inserted to secure the two legs 105 to the ground.
The manufacturing device further comprises a T-shaped frame 401, round rods 402, a plug seat 403 and a rubber sleeve 404, the plug seat 403 is inserted into the front portion of the L-shaped column 208 in a plugging mode, a fastening screw I is arranged on the plug seat 403 and pressed on the L-shaped column 208, the upper portion of the T-shaped frame 401 is vertically connected to the plug seat 403 in a sliding mode, the rubber sleeve 404 is arranged at the sliding connection position of the T-shaped frame 401 and the plug seat 403, the round rods 402 are welded to the lower portion of the T-shaped frame 401 from left to right, and the round rods 402 are located above the outer ring 201.
This example achieves the effect of preventing the rice straw from running out of the annular and strip-like grooves as shown in fig. 10-11.
When T shape frame 401 is vertical to slide on plug seat 403, can drive a plurality of pole 402 and reciprocate, can block the upside of the straw of ring channel and bar inslot through a plurality of pole 402, prevent that the straw of ring channel and bar inslot from running out, treat plastics melt and straw combination back, lift plug seat 403 off again, and then lift T shape frame 401 and a plurality of pole 402 off, rubber sleeve 404 can improve the friction between T shape frame 401 and plug seat 403, make the relative position between T shape frame 401 and plug seat 403 be convenient for fixed.
The preparation device further comprises push posts 103, bottom strips 104 and blocking pieces 106, the left end and the right end of each bottom strip 104 are respectively provided with one push post 103, the front end and the rear end of each bottom strip 104 are respectively welded with the push posts 103, the push posts 103 are all connected to the bottom surface of the groove box 101 in a sliding mode, the left end and the right end of the rear side of the groove box 101 are respectively connected with the blocking pieces 106 in a screw mode, the two blocking pieces 106 are respectively blocked at the lower sides of the two bottom strips 104, and springs are arranged between the groove box 101 and the bottom strips 104.
As shown in fig. 5 to 6, this example can achieve the effect of ejecting the solidified wood-plastic composite.
The downward force of the spring is applied to the bottom strip 104, so that the bottom strip 104 is pushed downward against the stopper 106, and the two push posts 103 on the bottom strip 104 do not protrude from the bottom surface of the slot box 101; when the solidified plastic needs to be discharged, the bottom strip 104 is pushed upwards to drive the two push columns 103 thereon to move upwards, and then the solidified wood-plastic composite material is ejected out.
The preparation device further comprises a cross beam 301, side plates 302, hand-screwed screws 303, bottom pieces 304, seat blocks 305 and inclined planes 306, the middle of the cross beam 301 is fixed on the lower side of the groove box 101, the two side plates 302 are respectively connected to two ends of the cross beam 301 in a sliding mode, the two side plates 302 are respectively blocked on two sides of the groove box 101, the bottom pieces 304 are integrally formed on the lower sides of the side plates 302, the seat blocks 305 are arranged on the two bottom pieces 304, the inclined planes 306 are arranged on the two seat blocks 305, the two inclined planes 306 are respectively located on the inner sides of the two bottom strips 104, the two ends of the cross beam 301 are respectively connected with the hand-screwed screws 303 through rotation of bearings, and the two hand-screwed screws 303 are respectively matched with the two bottom pieces 304 through threads.
As shown in fig. 9, this example can achieve the effect that when the side plate 302 moves outwards, the pushing rod 103 is also driven to move upwards.
The hand-rotating screw 303 can be rotated to drive the hand-rotating screw 303 and the bottom piece 304 to move outwards, so that the left side and the right side of the groove box 101 are opened, then the seat block 305 and the inclined plane 306 on the seat block are driven to move outwards, the inclined plane 306 is contacted with the bottom strip 104 to drive the bottom strip 104 and the two push posts 103 on the bottom strip to move upwards, so that the side plates 302 can drive the push posts 103 to move upwards when moving outwards, the push posts 103 move upwards to push out the wood-plastic composite material, the two side plates 302 are respectively separated from the two sides of the wood-plastic composite material, and the wood-plastic composite material can be taken out from the two sides manually.
Claims (10)
1. The preparation method of the degradable wood-plastic composite material is characterized by comprising the following steps:
s1: taking a plurality of straws, arranging the straws on a preparation device to form a circle in the middle, and radiating a plurality of linear shapes outwards;
s2: heating and mixing polycaprolactone, a biological active agent, a photocatalyst and a thermal oxidative degradation promoter to prepare a plastic melt;
s3: pouring the plastic melt onto a plurality of straws on the preparation device, so that the plastic melt is combined with the plurality of straws;
s4: and waiting for the molten plastic to be cooled and solidified to prepare the wood-plastic composite material.
2. The preparation method of the degradable wood-plastic composite material according to claim 1, wherein the preparation method comprises the following steps: the mass portion ratio of the polycaprolactone to the bioactive agent to the photocatalyst to the thermal-oxidative degradation promoter is 30:1:1:2.
3. the preparation method of the degradable wood-plastic composite material according to claim 1, wherein the preparation method comprises the following steps: the straw is dry straw.
4. The preparation method of the degradable wood-plastic composite material according to claim 1, wherein the preparation method comprises the following steps: the preparation device comprises a groove box (101), an outer ring (201) and an inner ring (202), wherein the outer ring (201) and the inner ring (202) are coaxially arranged, and the outer ring (201) and the inner ring (202) are both arranged in the groove box (101).
5. The preparation method of the degradable wood-plastic composite material according to claim 4, wherein the preparation method comprises the following steps: the preparation device further comprises a convex seat (102), connecting columns (207) and L-shaped columns (208), the connecting columns (207) are fixedly connected to the upper sides of the outer ring (201) and the inner ring (202), the connecting columns (207) are connected to the L-shaped columns (208), an annular groove is formed between the outer ring (201) and the inner ring (202), the convex seat (102) is arranged on the rear side of the groove box (101), and the rear portion of the L-shaped column (208) is inserted into the convex seat (102).
6. The preparation method of the degradable wood-plastic composite material according to claim 5, wherein the preparation method comprises the following steps: the preparation device further comprises a plurality of diverging columns (205), the outer side of the outer ring (201) is provided with the plurality of diverging columns (205), and the plurality of diverging columns (205) are provided with strip-shaped grooves.
7. The preparation method of the degradable wood-plastic composite material according to claim 6, wherein the preparation method comprises the following steps: the preparation device also comprises a bottom opening (204), and the lower parts of the outer ring (201) and the divergent column (205) are provided with the bottom opening (204).
8. The preparation method of the degradable wood-plastic composite material according to claim 7, wherein the preparation method comprises the following steps: the preparation device also comprises a rubber sheet (203), and a plurality of rubber sheets (203) are adhered to the upper side of each divergent column (205).
9. The preparation method of the degradable wood-plastic composite material according to claim 8, wherein the preparation method comprises the following steps: the preparation device further comprises a rubber strip (206), a plurality of rubber strips (206) are bonded on the upper side of the inner ring (202), and the rubber strips (206) are bonded on the upper side of the inner ring (202).
10. The preparation method of the degradable wood-plastic composite material according to claim 9, wherein the preparation method comprises the following steps: the preparation device further comprises supporting legs (105), two supporting legs (105) are arranged on the lower side of the groove box (101), and jacks are arranged on the two supporting legs (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210906579.2A CN115160813B (en) | 2022-07-29 | 2022-07-29 | Preparation method of degradable wood-plastic composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210906579.2A CN115160813B (en) | 2022-07-29 | 2022-07-29 | Preparation method of degradable wood-plastic composite material |
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| CN115160813A true CN115160813A (en) | 2022-10-11 |
| CN115160813B CN115160813B (en) | 2024-05-14 |
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|---|---|
| CN115160813B (en) | 2024-05-14 |
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