CN108794917A - A kind of PVC wood plastic material and its production method - Google Patents
A kind of PVC wood plastic material and its production method Download PDFInfo
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
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- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
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Abstract
The invention discloses a kind of PVC wood plastic material and its production methods, are made of the following raw material according to parts by weight：PVC discards 30-50 parts of tubing, 30-40 parts of inorganic filler, 10-20 parts of SG-7 type resins, 3-5 parts of lubricant, 1-3 parts of liquid calcium zinc stabilizer, 2-5 parts of foaming agent, 1-2 parts of foaming control agent, 0.5-1 parts of plasticizer, 1-2 parts of chromatic timing powder, 3-6 parts of high-temperature heat-resistance fiber；Pass through the comminution pretreatment of raw material successively, preliminary mixing granulation is spare, fiber pretreatment heating, by Single screw extrusion mechanism plate after above-mentioned high-temperature heat-resistance fiber is heated to 80-100 DEG C as traction object, and the spare raw material that will pelletize；PVC pipe is discarded by comprehensive utilization, and timber is used in combination, strict temperature control during production, promote fusion, improves the overall performance of product, and in forming process, by using polycrystalline mullite fibre as traction, the crackle for avoiding surface promotes the formation of flow liner, and the aesthetics of product is also improved while improving product integral rigidity rigidity.
Description
Technical field
The present invention relates to technical field, specially a kind of PVC wood plastic material and its production method.
Background technology
Wood moulding, i.e. wood plastic composite refer to using polyethylene, polypropylene and polyvinyl chloride etc., instead of common resin glue
Stick is mixed into new wood materials with the useless plant fiber such as wood powder, rice husk, stalk, then through extruding, molding, injection moulding etc.
Plastic processing, the plank or proximate matter produced.Through hot extrusion molding after plastics and wooden powder are mixed in a certain ratio
Plank, referred to as squeeze wood-plastic composite panel.Wood-plastic material is energy saving since its is environmentally protective, therefore increasingly by people
Pay close attention to and pay attention to.
But there is also certain defects for current Wood-plastic material：
1, the intensity of current PVC wood plastic composite material and color fastness are also very bad, in long-term use can be due to each
Generate small when being merged between a component and be cracked, influence whole product property.
2, the toughness of wood moulding is less than plastics parent or resin, so when processing, process equipment or mold need to make
Corresponding adjustment and transformation are to meet processing request.
3. absorb impact or the industrial occasions of loading structure in using there is limitation, this is because hydrophilic wood powder is (such as
Wood-fibred) cohesive force very little between hydrophobic plastics, cause the mechanical strength of product relatively low, the drawing of wood plastic composite
It stretches intensity and when bending strength ratio is not filled by plastics wants small, brittleness ratio is not filled by larger when plastics, and impact strength also accordingly reduces,
And its density is generally higher than pure plastics and timber.
Invention content
In order to overcome the shortcomings of prior art, a kind of PVC wood plastic material of present invention offer and its production method, can have
Effect solves the problems, such as that background technology proposes.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of PVC wood plastic material is made of according to parts by weight the following raw material：
PVC discards 30-50 parts of tubing, 30-40 parts of inorganic filler, 10-20 parts of SG-7 type resins, 3-5 parts of lubricant, liquid
1-3 parts of state calcium zinc stabilizer, 2-5 parts of foaming agent, 1-2 parts of foaming control agent, 0.5-1 parts of plasticizer, 1-2 parts of chromatic timing powder, high temperature
3-6 parts of heat resistance fiber.
As a kind of preferred technical solution of the present invention, the inorganic filler is by Poplar Powder precipitated calcium carbonate powder with arbitrary
Ratio mixes, and the inorganic filler granularity is 1000-1200 mesh.
As a kind of preferred technical solution of the present invention, the lubricant uses polyethylene wax, the foaming agent to be sent out by AC
According to (3-5), the ratio of (1-2) mixes for infusion and sodium bicarbonate, and the foaming control agent uses acrylic acid, the plasticising
Agent is mixed by dioctyl phthalate and epoxidized soybean oil according to arbitrary proportion.
As a kind of preferred technical solution of the present invention, the high-temperature heat-resistance fiber uses polycrystalline mullite fibre.
In addition, the present invention also provides a kind of production method of PVC wood plastic material, include the following steps：
Step 100, pre-treatment of raw material independently crush the material in above-mentioned formula successively, and by granularity control
System is in 1000-2000 mesh；
Step 200, preliminary mixing granulation, by the raw material by crushing other than chromatic timing powder and high-temperature heat-resistance fiber
Part mixes successively, and continuous heating is persistently stirred to 100-120 DEG C, and chromatic timing powder is added during stirring
Toning, then pelletized by Twin screw extruder spare；
Step 300, fiber pretreatment, are preheated to 80-100 DEG C, and on high-temperature heat-resistance fiber by high-temperature heat-resistance fiber
Gradually smear SG-7 type resins；
Step 400, using above-mentioned high-temperature heat-resistance fiber as traction object, and the spare raw material that will pelletize are heated to 80-
Pass through Single screw extrusion mechanism plate after 100 DEG C.
As a kind of preferred technical solution of the present invention, in step 200, raw material mixing the specific steps are：
Raw material are independently preheated to 50-60 DEG C by step 201；
PVC is discarded tubing and inorganic filler and improves temperature first and be heated to 100-120 DEG C, and added by step 202
SG-7 type resins gradually are added according to recipe ratio in thermal process, mixture is kept to be in flow-like always；
Step 203 will gradually be added by the material of preheating in above-mentioned fluid, and during heating mixing always
Keep stirring at low speed.
As a kind of preferred technical solution of the present invention, in step 200, in the gradually adding procedure of raw material mixing
In, the speed of stirring is 600-800r/min, is 1200-1600r/min in the speed that raw material mixing addition is stirred after the completion.
As a kind of preferred technical solution of the present invention, in step 300, the high-temperature heat-resistance fiber is pretreated specific
Step is：
Step 301, first before high-temperature heat-resistance fiber is preheated, one layer of solidification is smeared on high-temperature heat-resistance fiber
SG-7 type resins；
Step 302, during high-temperature heat-resistance is fiber-heated, gradually raise the temperature, and on each temperature step
A SG-7 type resin is smeared, remains that high-temperature heat-resistance fiber is in wetting state；
Step 303 keeps maximum temperature spare after the completion of preheating.
It graduallys raise the temperature in above-mentioned steps as a kind of preferred technical solution of the present invention and is divided into three phases：First
Stage, temperature range are room temperature to 40 DEG C, and average heating rate is 2-4 DEG C/min；Second stage, temperature range are 40 DEG C to 60
DEG C, average heating rate is 3-6 DEG C/min；First stage, temperature range are 60 DEG C to 100 DEG C, average heating rate 1-2
℃/min。
As a kind of preferred technical solution of the present invention, in step 400, the quantity of the high-temperature heat-resistance fiber is several
Stock, and multiply high-temperature heat-resistance fiber is uniformly distributed and is located at single screw extrusion machine extruding end inner surface, the high-temperature heat-resistance fiber away from
It is not less than 0.5mm with a distance from extrusion board outer surface.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention discards PVC pipe by comprehensive utilization, and
Timber is used in combination, produces Wood-plastic material, strict temperature control during production promotes fusion, avoids can not merging
Factor improves the overall performance of product, and in forming process, by using polycrystalline mullite fibre as drawing, avoids
The crackle on surface promotes the formation of flow liner, and the aesthetics of product is also improved while improving product integral rigidity rigidity.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1：
The present invention provides a kind of PVC wood plastic materials, are made of the following raw material according to parts by weight：
PVC discards 30 parts of tubing, 30 parts of inorganic filler, 10 parts of SG-7 types resin, 3 parts of lubricant, liquid calcium zinc and stablizes
1 part of agent, 2 parts of foaming agent, 1 part of foaming control agent, 0.5 part of plasticizer, 1 part of chromatic timing powder, 3 parts of high-temperature heat-resistance fiber.
Embodiment 2：
The present invention provides a kind of PVC wood plastic materials, are made of the following raw material according to parts by weight：
PVC discards 40 parts of tubing, 35 parts of inorganic filler, 15 parts of SG-7 types resin, 4 parts of lubricant, liquid calcium zinc and stablizes
2 parts of agent, 3 parts of foaming agent, 1.5 parts of foaming control agent, 0.75 part of plasticizer, 1.5 parts of chromatic timing powder, 4 parts of high-temperature heat-resistance fiber.
Embodiment 3：
The present invention provides a kind of PVC wood plastic materials, are made of the following raw material according to parts by weight：
PVC discards 50 parts of tubing, 40 parts of inorganic filler, 20 parts of SG-7 types resin, 5 parts of lubricant, liquid calcium zinc and stablizes
3 parts of agent, 5 parts of foaming agent, 2 parts of foaming control agent, 1 part of plasticizer, 2 parts of chromatic timing powder, 6 parts of high-temperature heat-resistance fiber.
Preferably, in the above embodiments, the inorganic filler by Poplar Powder precipitated calcium carbonate powder arbitrarily to compare
Example mixes, and the inorganic filler granularity is 1000-1200 mesh；The lubricant uses polyethylene wax, the foaming
By AC foaming agents and sodium bicarbonate according to (3-5), the ratio of (1-2) mixes for agent, and the foaming control agent uses acrylic acid,
The plasticizer is mixed by dioctyl phthalate and epoxidized soybean oil according to arbitrary proportion；The high-temperature heat-resistance fiber
Using polycrystalline mullite fibre.
Wherein, in this application, the effect of each component is as described below：
Lubricant constitutes the lubricating system of wood moulding structure so that has flowing between each structure during compound
Property, a variety of materials can be uniformly mixed to greatest extent, form the mixture system of more homogeneous；
Foaming agent, gas forming amount is big, and dosage is small, decomposes when in use completely, will not have residual in product, improve product
Pore structure when mixing forms complete structure convenient for the filling of each component, can also avoid generating spot in product surface
Point, and influence the weather resistance of product；
Foaming control agent, the environment residing for foaming agent overcome its defect substantially, while capable of ensureing foaming
It can also make the rigid connection between each component；
Plasticizer, the active force that can be reduced between molecular resin improve mobility, have certain lubricity to be conducive to production and add
Work.
In addition, as shown in Figure 1, the present invention also provides a kind of production method of PVC wood plastic material, include the following steps：
Step 100, pre-treatment of raw material independently crush the material in above-mentioned formula successively, and by granularity control
System is in 1000-2000 mesh.
Raw material are adequately crushed so that can more fully be mixed between each component when mixing
Close so that the Wood-plastic material surface produced is more smooth, there is brightness, and it is independent crush, be convenient for subsequent mixing
Step.
Step 200, preliminary mixing granulation, by the raw material by crushing other than chromatic timing powder and high-temperature heat-resistance fiber
Part mixes successively, and continuous heating is persistently stirred to 100-120 DEG C, and chromatic timing powder is added during stirring
Toning, then pelletized by Twin screw extruder spare.
Raw material mixing the specific steps are：
Raw material are independently preheated to 50-60 DEG C by step 201；
PVC is discarded tubing and inorganic filler and improves temperature first and be heated to 100-120 DEG C, and added by step 202
SG-7 type resins gradually are added according to recipe ratio in thermal process, mixture is kept to be in flow-like always；
Step 203 will gradually be added by the material of preheating in above-mentioned fluid, and during heating mixing always
Keep stirring at low speed.
In above-mentioned steps, the purpose that is preheated to raw material is so that the amalgamation between material is more preferable, institute
It is to cause the mechanics of product strong due to the cohesive force very little between hydrophilic material and hydrophobic material to use above-mentioned steps
It spends relatively low, temperature between the two is improved, and then improve the cohesive force between heterogeneity material, convenient for fusion.
During fusion so that material is in fluid state always, prevents from making material since temperature control is improper
Expect coking, or even charing, and fused component is enabled to remain within the scope of a good temperature.
In step 200, in the gradually adding procedure of raw material mixing, the speed of stirring is 600-800r/min,
The speed that raw material mixing addition is stirred after the completion is 1200-1600r/min.
The purpose of low speed rotation is to promote mixing, and control in compared with lower speed range be prevent due to high speed rotation and
Predominant pathway is formed, causes to be sufficiently mixed between component.And it can pass through after material has been added and has been over completely
High speed promotes the component in fluid state more fully to mix.
Step 300, fiber pretreatment, are preheated to 80-100 DEG C, and on high-temperature heat-resistance fiber by high-temperature heat-resistance fiber
Gradually smear SG-7 type resins.
High-temperature heat-resistance fiber, which is preheated, to be advantageous in that fiber and fluid prepared by above-mentioned steps is had
There is better bonding, cooling film can be avoided the formation of when the two temperature is similar, promotes the bonding between material and attaching.
The high-temperature heat-resistance fiber it is pretreated the specific steps are：
Step 301, first before high-temperature heat-resistance fiber is preheated, one layer of solidification is smeared on high-temperature heat-resistance fiber
SG-7 type resins；
Step 302, during high-temperature heat-resistance is fiber-heated, gradually raise the temperature, and on each temperature step
A SG-7 type resin is smeared, remains that high-temperature heat-resistance fiber is in wetting state；
Step 303 keeps maximum temperature spare after the completion of preheating.
In above-mentioned steps, graduallys raise the temperature and be divided into three phases：First stage, temperature range be room temperature to 40 DEG C, put down
Equal heating rate is 2-4 DEG C/min；Second stage, temperature range are 40 DEG C to 60 DEG C, and average heating rate is 3-6 DEG C/min；
First stage, temperature range are 60 DEG C to 100 DEG C, and average heating rate is 1-2 DEG C/min.
The effect to be heated up using the multistage prevents from leading to the rigid connection intensity for influencing material due to unbalance stress.
Step 400, using above-mentioned high-temperature heat-resistance fiber as traction object, and the spare raw material that will pelletize are heated to 80-
Pass through Single screw extrusion mechanism plate after 100 DEG C.
Among the above, if the quantity of the high-temperature heat-resistance fiber is carried interest, and multiply high-temperature heat-resistance fiber is uniformly distributed and sets
In single screw extrusion machine extruding end inner surface, distance of the high-temperature heat-resistance fiber apart from extrusion board outer surface is not less than 0.5mm.
In conclusion the main characteristic of the invention lies in that：Wood-plastic material provided by the invention, by wood powder and discarded pvc pipe
Then the materials such as material and other discarded foamed boards are added a variety of auxiliary agent raw materials, are squeezed by mixing
Go out molding, Wood plastic boards are made；Gained Wood plastic boards have good flatness, smoothness, and high temperature resistant, ageing-resistant performance are good
Good, stability is good, is unlikely to deform.
In addition, due to being used as traction by polycrystalline mullite fibre at the time of molding, on the one hand it can be molded with guiding material, also
The rigidity characteristic of product can be improved by the rigid connection characteristic of itself, the contraction of material can be prevented and produce by being located at its surface
Raw crackle etc., but also can guide and form flow liner in inside, improve the aesthetics of Wood-plastic material.
Wood-plastic material provided by the invention, raw material are mainly derived from waste material, and by being mixed with wood powder, various modifications are added
Agent is prepared into the good Wood-plastic material of various aspects of performance, turns waste into wealth, greatlys save timber resources, more environmentally protective.
The preparation method of Wood-plastic material provided by the invention is avoided not as far as possible by reasonably controlling fusion temperature
Mutually melt factor so that merged more preferably between each component, ensured the quality of product.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of PVC wood plastic material, which is characterized in that be made of the following raw material according to parts by weight：
PVC discards 30-50 parts of tubing, 30-40 parts of inorganic filler, 10-20 parts of SG-7 type resins, 3-5 parts of lubricant, liquid calcium
1-3 parts of zinc stabilizer, 2-5 parts of foaming agent, 1-2 parts of foaming control agent, 0.5-1 parts of plasticizer, 1-2 parts of chromatic timing powder, high-temperature heat-resistance
3-6 parts of fiber.
2. a kind of PVC wood plastic material according to claim 1, which is characterized in that the inorganic filler is light by Poplar Powder
Matter Paris white is mixed with arbitrary proportion, and the inorganic filler granularity is 1000-1200 mesh.
3. a kind of PVC wood plastic material according to claim 1, which is characterized in that the lubricant uses polyethylene wax, institute
Foaming agent is stated by AC foaming agents and sodium bicarbonate according to (3-5), the ratio of (1-2) mixes, and the foaming control agent uses
Acrylic acid, the plasticizer are mixed by dioctyl phthalate and epoxidized soybean oil according to arbitrary proportion.
4. a kind of PVC wood plastic material according to claim 1, which is characterized in that the high-temperature heat-resistance fiber uses polycrystalline
Mullite fiber.
5. a kind of production method of PVC wood plastic material, which is characterized in that include the following steps：
Step 100, pre-treatment of raw material independently crush the material in above-mentioned formula successively, and granularity control is existed
1000-2000 mesh；
Step 200, preliminary mixing granulation, by part of the raw material by crushing other than chromatic timing powder and high-temperature heat-resistance fiber
It mixes successively, and continuous heating is persistently stirred to 100-120 DEG C, and chromatic timing powder toning is added during stirring,
It is pelletized again by Twin screw extruder spare；
Step 300, fiber pretreatment, are preheated to 80-100 DEG C, and on high-temperature heat-resistance fiber gradually by high-temperature heat-resistance fiber
Smear SG-7 type resins；
Step 400, using above-mentioned high-temperature heat-resistance fiber as traction object, and the spare raw material that will pelletize are heated to 80-100 DEG C
Pass through Single screw extrusion mechanism plate afterwards.
6. a kind of production method of PVC wood plastic material according to claim 5, which is characterized in that in step 200,
Raw material mixing the specific steps are：
Raw material are independently preheated to 50-60 DEG C by step 201；
PVC is discarded tubing and inorganic filler and improves temperature first and is heated to 100-120 DEG C by step 202, and heated
SG-7 type resins gradually are added according to recipe ratio in journey, mixture is kept to be in flow-like always；
Step 203 will gradually be added in above-mentioned fluid by the material of preheating, and be remained during heating mixing
Stirring at low speed.
7. a kind of production method of PVC wood plastic material according to claim 5, which is characterized in that in step 200,
In the gradually adding procedure of raw material mixing, the speed of stirring is 600-800r/min, is stirred after the completion of raw material mixing addition
The speed mixed is 1200-1600r/min.
8. a kind of production method of PVC wood plastic material according to claim 5, which is characterized in that in step 300, institute
State high-temperature heat-resistance fiber it is pretreated the specific steps are：
Step 301, first before high-temperature heat-resistance fiber is preheated, smeared on high-temperature heat-resistance fiber one layer it is cured
SG-7 type resins；
Step 302, during high-temperature heat-resistance is fiber-heated, gradually raise the temperature, and smeared on each temperature step
SG-7 type resin remains that high-temperature heat-resistance fiber is in wetting state；
Step 303 keeps maximum temperature spare after the completion of preheating.
9. a kind of production method of PVC wood plastic material according to claim 8, which is characterized in that in above-mentioned steps, gradually
It improves temperature and is divided into three phases：First stage, temperature range are room temperature to 40 DEG C, and average heating rate is 2-4 DEG C/min；The
Two-stage, temperature range are 40 DEG C to 60 DEG C, and average heating rate is 3-6 DEG C/min；First stage, temperature range be 60 DEG C extremely
100 DEG C, average heating rate is 1-2 DEG C/min.
10. a kind of production method of PVC wood plastic material according to claim 5, which is characterized in that in step 400, institute
If the quantity for stating high-temperature heat-resistance fiber is carried interest, and multiply high-temperature heat-resistance fiber is uniformly distributed and is located at single screw extrusion machine extruding end
Inner surface, distance of the high-temperature heat-resistance fiber apart from extrusion board outer surface are not less than 0.5mm.
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| CN110628148A (en) * | 2019-09-27 | 2019-12-31 | 安徽可尔海思塑业有限公司 | Novel PVC composite floor and production method thereof |
| CN116922608A (en) * | 2023-07-18 | 2023-10-24 | 肥城三合工程材料有限公司 | Preparation process of geotechnical composite material |
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| CN104004293A (en) * | 2014-04-30 | 2014-08-27 | 山东霞光实业有限公司 | Formula and preparation method of outdoor PVC wood plastic grille |
| CN107244934A (en) * | 2017-06-12 | 2017-10-13 | 合肥铭佑高温技术有限公司 | A kind of production technology of high temperature combustion chamber refractory material |
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| CN104004293A (en) * | 2014-04-30 | 2014-08-27 | 山东霞光实业有限公司 | Formula and preparation method of outdoor PVC wood plastic grille |
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| CN110628148A (en) * | 2019-09-27 | 2019-12-31 | 安徽可尔海思塑业有限公司 | Novel PVC composite floor and production method thereof |
| CN116922608A (en) * | 2023-07-18 | 2023-10-24 | 肥城三合工程材料有限公司 | Preparation process of geotechnical composite material |
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