CN107974010A - A kind of preparation method of PVC wood plastic composite material for decoration - Google Patents
A kind of preparation method of PVC wood plastic composite material for decoration Download PDFInfo
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- CN107974010A CN107974010A CN201711351532.XA CN201711351532A CN107974010A CN 107974010 A CN107974010 A CN 107974010A CN 201711351532 A CN201711351532 A CN 201711351532A CN 107974010 A CN107974010 A CN 107974010A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- 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
- C08J9/10—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 developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Abstract
The invention discloses a kind of preparation method of PVC wood plastic composite material for decoration, include the following steps：（1）Filler preparation,（2）Raw material weighs,（3）It is prepared by finished product processing.The present invention has carried out special improvement to the preparation method of PVC wood plastic composite material and has handled, and effectively improves its mechanical strength characteristics and water repellent ability, reduces the incidence of the bad phenomenons such as mouldy deformation, has good use value and the market competitiveness.
Description
Technical field
The invention belongs to architectural decoration material field, and in particular to a kind of preparation method of PVC wood plastic composite material for decoration.
Background technology
The species that building and ornament materials include is more, there is stone material, timber, steel etc., and the dosage of wherein timber is larger, and with
The increasingly reduction of the trees forest reserves, use of the people for timber is also deliberately reduced gradually, and is transferred with similar nature
Material carries out replacement use, so as to improve the protection to environmental resource.Wood plastic composite is a kind of use of people's invention
In the material that timber substitutes, it by wood powder and resin is main component that it, which is, is molded with by injection molding, not only with timber
Use characteristic, and have good processing performance, receive the accreditation of people and pursue.But existing wood plastic composite exists
The problems such as intensity is not high, water resistance is not strong, there are the defects of performance, in order to constantly strengthen its market share and competition
Power is, it is necessary to constantly improve its quality.Someone is lifted by adding inorganic filler components into wood plastic composite
It uses quality, but the compatible associativity between the bulk composition of inorganic filler and Wood-plastic material is bad, causes filling-modified effect
Fruit is limited, does not reach the satisfaction of people still.
The content of the invention
The purpose of the present invention is for it is existing the problem of, there is provided a kind of preparation method of PVC wood plastic composite material for decoration.
The present invention is achieved by the following technical solutions：
A kind of preparation method of PVC wood plastic composite material for decoration, includes the following steps：
（1）It is prepared by filler：
A. by calcium oxide and clear water according to mass ratio 1:9 ~ 10, which carry out mixing, is put into agitator tank, and hydrogen is obtained after 1 ~ 2h of stir process
Calcium oxide slurries, then 10 ~ 12h of still aging processing is spare；
B. by methyl caprylate and glycerine according to molar ratio 2 ~ 2.5:1, which carries out mixing, is put into reaction kettle, then adds its total matter
The potassium hydroxide of amount 2 ~ 4%, after 15 ~ 20min of stir process, then adds the poly- of methyl caprylate gross mass 30 ~ 35% into reaction kettle
Ethylene oxide ether, then lifts the temperature in reaction kettle to 75 ~ 80 DEG C, adherence pressure to 0.4 ~ 0.6MPa, it is anti-to be stirred continuously processing
Answer take out after 35 ~ 40min treatment fluid A is spare；
C. by bacteria cellulose, phosphoric acid, water correspondence according to mass ratio 2 ~ 3:0.4~0.6:50 ~ 55, which carry out mixing, is put into reaction kettle
Interior, it is 55 ~ 60 DEG C that heating, which keeps the temperature in reaction kettle, mixed liquor is obtained after being stirred continuously 20 ~ 25min of processing, then again to anti-
Malonate, 3 ~ 5% dimethyl suflfate that mixed liquor gross mass 2 ~ 4% is added in kettle are answered, the temperature in reaction kettle is risen to 60 ~
65 DEG C, be stirred continuously after 35 ~ 40min of processing take out treatment fluid B is spare；The bacteria cellulose component of addition is to lignose parent
It is strong with power, the compatibility between calcium carbonate and wood powder can be lifted, there is substantial amounts of reaction to live for malonate, the dimethyl suflfate of addition
Property group, can improve the surface reaction activity of calcium carbonate, enhance its cross-linked polymeric ability with wood moulding at high temperature；
D. calcium hydroxide slurry made from operation a is put into flask, the total matter of calcium hydroxide slurry is then added into flask
Amount 8 ~ 10% operation b made from treatment fluid A, while heat keep flask in temperature be 45 ~ 50 DEG C, be stirred continuously processing 40 ~
After 45min, then the treatment fluid B made from the operation c of addition calcium hydroxide slurry gross mass 5 ~ 7% into flask, then by flask
Temperature rise to 55 ~ 60 DEG C, after being stirred continuously 1 ~ 1.5h of processing, then carbon dioxide is continually fed into flask, during which not
Disconnected stirring, until the pH of slurries entirety is neutrality, finally filters slurries, that filler is obtained after drying and processing is spare；
（2）Raw material weighs：
It is spare that following material is weighed by corresponding parts by weight：40 ~ 45 parts of wood powders, 55 ~ 60 parts of polyvinyl chloride resins, 3 ~ 5 parts of foaming agents, 0.1 ~
0.3 part of antioxidant, 0.2 ~ 0.4 part of ultra-violet absorber, 6 ~ 9 parts of steps（1）Obtained filler；
（3）It is prepared by finished product processing：
By step（2）All material compositions weighed are put into and mixing process are carried out in high speed mixing smelting machine jointly, after 35 ~ 40min
Granulation is put into dual-screw pelletizer again to handle, after the completion of institute's granulation material is put into conical double screw extruder,
Got product after carrying out extrusion molding, demoulding cooling.
Further, step（1）The speed of agitator for operating the stir process described in a is 500 ~ 600 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in b is 700 ~ 800 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in c is 400 ~ 500 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in d is 900 ~ 1000 revs/min.
Further, step（1）Operate d described in drying and processing when temperature be 80 ~ 85 DEG C, drying when a length of 50
~55min。
Further, step（2）Described in foaming agent be AC foaming agents.
Further, step（2）Described in any one for antioxidant 1010, in irgasfos 168 of antioxidant.
Further, step（2）Described in ultra-violet absorber for Ultraviolet Absorber UV-P, ultra-violet absorber
Any one in UV-O, ultra-violet absorber UV-9.
The present invention has carried out special improvement to the preparation method of wood plastic composite and has handled, especially to its material composition
Improved, wherein with the addition of a kind of special filler component, it is a kind of calcium carbonate by special modification, common carbon
Sour calcium has very strong hydrophilic oil repellent, its water absorbing capacity can be strengthened by being filled in Wood-plastic material, cause later stage timber it is easy to crack,
Mouldy, deformation, and it is not high with the resin in Wood-plastic material, wood powder component compatibility, the effect of filling is have impact on, to this this hair
Bright that modification has been carried out to its preparation method, the treatment fluid A of preparation is that a kind of glycerol caprylate polyoxyethylene ether activating agent is molten
Liquid, it can effectively strengthen the surface-active for improving calcium carbonate, significantly reduce its hydrophily, improve it between resin component
Scattered compatible associativity, the treatment fluid B of preparation improves the surface reaction activity of calcium carbonate, improves it between wood powder component
Compatible associativity, and then enhance its and fill using effect, improve the integrated quality of PVC wood plastic composite material.
The present invention has the following advantages compared with prior art：
The present invention has carried out special improvement to the preparation method of PVC wood plastic composite material and has handled, and it is strong to effectively improve its mechanics
Characteristic and water repellent ability are spent, reduces the incidence of the bad phenomenons such as mouldy deformation, it is competing with good use value and market
Strive power.
Embodiment
Embodiment 1
A kind of preparation method of PVC wood plastic composite material for decoration, includes the following steps：
（1）It is prepared by filler：
A. by calcium oxide and clear water according to mass ratio 1:9, which carry out mixing, is put into agitator tank, and hydroxide is obtained after stir process 1h
Calcium slurries, then still aging processing 10h is spare；
B. by methyl caprylate and glycerine according to molar ratio 2:1, which carries out mixing, is put into reaction kettle, then adds its gross mass 2%
Potassium hydroxide, after stir process 15min, then add into reaction kettle the polyoxyethylene ether of methyl caprylate gross mass 30%, then
The temperature in reaction kettle is lifted to 75 DEG C, adherence pressure to 0.4MPa, treatment fluid is taken out to obtain after being stirred continuously processing reaction 35min
A is spare；
C. by bacteria cellulose, phosphoric acid, water correspondence according to mass ratio 2:0.4:50, which carry out mixing, is put into reaction kettle, and heating is protected
The temperature held in reaction kettle is 55 DEG C, obtains mixed liquor after being stirred continuously processing 20min, then adds mixed liquor into reaction kettle again
The malonate of gross mass 2%, 3% dimethyl suflfate, 60 DEG C are risen to by the temperature in reaction kettle, are stirred continuously processing 35min
After take out treatment fluid B is spare；
D. calcium hydroxide slurry made from operation a is put into flask, the total matter of calcium hydroxide slurry is then added into flask
Treatment fluid A made from the operation b of amount 8%, while the temperature heated in holding flask is 45 DEG C, after being stirred continuously processing 40min,
Treatment fluid B made from adding the operation c of calcium hydroxide slurry gross mass 5% into flask again, then rises to the temperature in flask
55 DEG C, after being stirred continuously processing 1h, then carbon dioxide is continually fed into flask, be during which stirred continuously, until slurries are whole
The pH of body for neutrality, finally slurries are filtered, after drying and processing filler it is spare；
（2）Raw material weighs：
It is spare that following material is weighed by corresponding parts by weight：40 parts of wood powders, 55 parts of polyvinyl chloride resins, 3 parts of foaming agents, 0.1 part of antioxidant,
0.2 part of ultra-violet absorber, 6 parts of steps（1）Obtained filler；
（3）It is prepared by finished product processing：
By step（2）All material compositions weighed are put into and mixing process are carried out in high speed mixing smelting machine jointly, again will after 35min
It is put into dual-screw pelletizer granulation and handles, after the completion of institute's granulation material is put into conical double screw extruder, carry out
Got product after extrusion molding, demoulding cooling.
Further, step（1）The speed of agitator for operating the stir process described in a is 500 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in b is 700 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in c is 400 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in d is 900 revs/min.
Further, step（1）Operate d described in drying and processing when temperature be 80 DEG C, drying when it is a length of
50min。
Further, step（2）Described in foaming agent be AC foaming agents.
Further, step（2）Described in antioxidant be antioxidant 1010.
Further, step（2）Described in ultra-violet absorber be Ultraviolet Absorber UV-P.
Embodiment 2
A kind of preparation method of PVC wood plastic composite material for decoration, includes the following steps：
（1）It is prepared by filler：
A. by calcium oxide and clear water according to mass ratio 1:9.6, which carry out mixing, is put into agitator tank, and hydrogen is obtained after stir process 1.6h
Calcium oxide slurries, then still aging processing 11h is spare；
B. by methyl caprylate and glycerine according to molar ratio 2.3:1, which carries out mixing, is put into reaction kettle, then adds its gross mass
3% potassium hydroxide, after stir process 18min, then adds into reaction kettle the polyoxyethylene ether of methyl caprylate gross mass 32%, connects
The temperature in lifting reaction kettle to 78 DEG C, adherence pressure to 0.5MPa, takes out and must handle after being stirred continuously processing reaction 38min
Liquid A is spare；
C. by bacteria cellulose, phosphoric acid, water correspondence according to mass ratio 2.6:0.5:53, which carry out mixing, is put into reaction kettle, heating
It is 57 DEG C to keep the temperature in reaction kettle, obtains mixed liquor after being stirred continuously processing 23min, then adds mixing into reaction kettle again
The malonate of liquid gross mass 3%, 4% dimethyl suflfate, rise to 62 DEG C by the temperature in reaction kettle, are stirred continuously processing
Taken out after 38min treatment fluid B is spare；
D. calcium hydroxide slurry made from operation a is put into flask, the total matter of calcium hydroxide slurry is then added into flask
Treatment fluid A made from the operation b of amount 9%, while the temperature heated in holding flask is 48 DEG C, after being stirred continuously processing 43min,
Treatment fluid B made from adding the operation c of calcium hydroxide slurry gross mass 6% into flask again, then rises to the temperature in flask
58 DEG C, after being stirred continuously processing 1.2h, then carbon dioxide is continually fed into flask, be during which stirred continuously, until slurries
Overall pH is neutrality, finally slurries are filtered, after drying and processing filler is spare；
（2）Raw material weighs：
It is spare that following material is weighed by corresponding parts by weight：43 parts of wood powders, 58 parts of polyvinyl chloride resins, 4 parts of foaming agents, 0.2 part of antioxidant,
0.3 part of ultra-violet absorber, 8 parts of steps（1）Obtained filler；
（3）It is prepared by finished product processing：
By step（2）All material compositions weighed are put into and mixing process are carried out in high speed mixing smelting machine jointly, again will after 37min
It is put into dual-screw pelletizer granulation and handles, after the completion of institute's granulation material is put into conical double screw extruder, carry out
Got product after extrusion molding, demoulding cooling.
Further, step（1）The speed of agitator for operating the stir process described in a is 550 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in b is 750 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in c is 470 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in d is 950 revs/min.
Further, step（1）Operate d described in drying and processing when temperature be 82 DEG C, drying when it is a length of
53min。
Further, step（2）Described in foaming agent be AC foaming agents.
Further, step（2）Described in antioxidant be antioxidant 1010.
Further, step（2）Described in ultra-violet absorber be ultra-violet absorber UV-O.
Embodiment 3
A kind of preparation method of PVC wood plastic composite material for decoration, includes the following steps：
（1）It is prepared by filler：
A. by calcium oxide and clear water according to mass ratio 1:10, which carry out mixing, is put into agitator tank, and hydroxide is obtained after stir process 2h
Calcium slurries, then still aging processing 12h is spare；
B. by methyl caprylate and glycerine according to molar ratio 2.5:1, which carries out mixing, is put into reaction kettle, then adds its gross mass
4% potassium hydroxide, after stir process 20min, then adds into reaction kettle the polyoxyethylene ether of methyl caprylate gross mass 35%, connects
The temperature in lifting reaction kettle to 80 DEG C, adherence pressure to 0.6MPa, takes out and must handle after being stirred continuously processing reaction 40min
Liquid A is spare；
C. by bacteria cellulose, phosphoric acid, water correspondence according to mass ratio 3:0.6:55, which carry out mixing, is put into reaction kettle, and heating is protected
The temperature held in reaction kettle is 60 DEG C, obtains mixed liquor after being stirred continuously processing 25min, then adds mixed liquor into reaction kettle again
The malonate of gross mass 4%, 5% dimethyl suflfate, 65 DEG C are risen to by the temperature in reaction kettle, are stirred continuously processing 40min
After take out treatment fluid B is spare；
D. calcium hydroxide slurry made from operation a is put into flask, the total matter of calcium hydroxide slurry is then added into flask
Treatment fluid A made from the operation b of amount 10%, while the temperature heated in holding flask is 50 DEG C, after being stirred continuously processing 45min,
Treatment fluid B made from adding the operation c of calcium hydroxide slurry gross mass 7% into flask again, then rises to the temperature in flask
60 DEG C, after being stirred continuously processing 1.5h, then carbon dioxide is continually fed into flask, be during which stirred continuously, until slurries
Overall pH is neutrality, finally slurries are filtered, after drying and processing filler is spare；
（2）Raw material weighs：
It is spare that following material is weighed by corresponding parts by weight：45 parts of wood powders, 60 parts of polyvinyl chloride resins, 5 parts of foaming agents, 0.3 part of antioxidant,
0.4 part of ultra-violet absorber, 9 parts of steps（1）Obtained filler；
（3）It is prepared by finished product processing：
By step（2）All material compositions weighed are put into and mixing process are carried out in high speed mixing smelting machine jointly, after 40min again
Granulation is put into dual-screw pelletizer to handle, after the completion of institute's granulation material is put into conical double screw extruder, into
Got product after row extrusion molding, demoulding cooling.
Further, step（1）The speed of agitator for operating the stir process described in a is 600 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in b is 800 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in c is 500 revs/min.
Further, step（1）The speed of agitator for operating the stir process described in d is 1000 revs/min.
Further, step（1）Operate d described in drying and processing when temperature be 85 DEG C, drying when it is a length of
55min。
Further, step（2）Described in foaming agent be AC foaming agents.
Further, step（2）Described in antioxidant be irgasfos 168.
Further, step（2）Described in ultra-violet absorber be ultra-violet absorber UV-9.
Comparative example 1
This comparative example 1 compared with Example 2, in step（1）In prepared by filler, eliminate in operation c and operation d at addition
Manage the operation of liquid B, method and step all same in addition.
Comparative example 2
This comparative example 2 compared with Example 2, in step（2）During raw material weighs, with etc. mass parts commercially available calcium carbonate substitute
Step（1）Obtained filler component, method and step all same in addition.
Comparative example 3
This comparative example 3 compared with Example 2, in step（2）During raw material weighs, step is saved（1）Obtained filler component,
Method and step all same in addition.
In order to contrast effect of the present invention, to above-described embodiment 2, comparative example 1, comparative example 2, comparative example 3
PVC wood plastic composite material is tested for the property made from correspondence, and specific correction data is as shown in table 1 below：
Table 1
| Bending strength（MPa） | Plate face nail-holding ability（kN） | Thickness swelling rate（%） | |
| Embodiment 2 | 22.7 | 1.68 | 0.31 |
| Comparative example 1 | 18.6 | 1.45 | 0.60 |
| Comparative example 2 | 16.3 | 1.26 | 0.78 |
| Comparative example 3 | 14.2 | 1.10 | 0.71 |
Note：Bending strength described in upper table 1 is tested with reference to the requirement of GB/T 24137-2009；The plate face holds nail
Power method with reference to as defined in 4. 10 in GB/T 17657-1999 is tested；The thickness swelling rate refers to try
Sample soaks the expansion rate of its thickness after 128h in water.
The synthesis of PVC wood plastic composite material produced by the present invention has been obtained significantly using quality it can be seen from upper table 1
Improve and lifted, there is the very strong market competitiveness and application value.
Claims (9)
1. a kind of preparation method of PVC wood plastic composite material for decoration, it is characterised in that include the following steps：
（1）It is prepared by filler：
A. by calcium oxide and clear water according to mass ratio 1:9 ~ 10, which carry out mixing, is put into agitator tank, and hydrogen is obtained after 1 ~ 2h of stir process
Calcium oxide slurries, then 10 ~ 12h of still aging processing is spare；
B. by methyl caprylate and glycerine according to molar ratio 2 ~ 2.5:1, which carries out mixing, is put into reaction kettle, then adds its total matter
The potassium hydroxide of amount 2 ~ 4%, after 15 ~ 20min of stir process, then adds the poly- of methyl caprylate gross mass 30 ~ 35% into reaction kettle
Ethylene oxide ether, then lifts the temperature in reaction kettle to 75 ~ 80 DEG C, adherence pressure to 0.4 ~ 0.6MPa, it is anti-to be stirred continuously processing
Answer take out after 35 ~ 40min treatment fluid A is spare；
C. by bacteria cellulose, phosphoric acid, water correspondence according to mass ratio 2 ~ 3:0.4~0.6:50 ~ 55, which carry out mixing, is put into reaction kettle
Interior, it is 55 ~ 60 DEG C that heating, which keeps the temperature in reaction kettle, mixed liquor is obtained after being stirred continuously 20 ~ 25min of processing, then again to anti-
Malonate, 3 ~ 5% dimethyl suflfate that mixed liquor gross mass 2 ~ 4% is added in kettle are answered, the temperature in reaction kettle is risen to 60 ~
65 DEG C, be stirred continuously after 35 ~ 40min of processing take out treatment fluid B is spare；
D. calcium hydroxide slurry made from operation a is put into flask, the total matter of calcium hydroxide slurry is then added into flask
Amount 8 ~ 10% operation b made from treatment fluid A, while heat keep flask in temperature be 45 ~ 50 DEG C, be stirred continuously processing 40 ~
After 45min, then the treatment fluid B made from the operation c of addition calcium hydroxide slurry gross mass 5 ~ 7% into flask, then by flask
Temperature rise to 55 ~ 60 DEG C, after being stirred continuously 1 ~ 1.5h of processing, then carbon dioxide is continually fed into flask, during which not
Disconnected stirring, until the pH of slurries entirety is neutrality, finally filters slurries, that filler is obtained after drying and processing is spare；
（2）Raw material weighs：
It is spare that following material is weighed by corresponding parts by weight：40 ~ 45 parts of wood powders, 55 ~ 60 parts of polyvinyl chloride resins, 3 ~ 5 parts of foaming agents, 0.1 ~
0.3 part of antioxidant, 0.2 ~ 0.4 part of ultra-violet absorber, 6 ~ 9 parts of steps（1）Obtained filler；
（3）It is prepared by finished product processing：
By step（2）All material compositions weighed are put into and mixing process are carried out in high speed mixing smelting machine jointly, after 35 ~ 40min
Granulation is put into dual-screw pelletizer again to handle, after the completion of institute's granulation material is put into conical double screw extruder,
Got product after carrying out extrusion molding, demoulding cooling.
A kind of 2. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（1）
The speed of agitator for operating the stir process described in a is 500 ~ 600 revs/min.
A kind of 3. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（1）
The speed of agitator for operating the stir process described in b is 700 ~ 800 revs/min.
A kind of 4. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（1）
The speed of agitator for operating the stir process described in c is 400 ~ 500 revs/min.
A kind of 5. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（1）
The speed of agitator for operating the stir process described in d is 900 ~ 1000 revs/min.
A kind of 6. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（1）
Temperature when operating the drying and processing described in d is 80 ~ 85 DEG C, when a length of 50 ~ 55min of drying.
A kind of 7. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（2）
Described in foaming agent be AC foaming agents.
A kind of 8. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（2）
Described in any one for antioxidant 1010, in irgasfos 168 of antioxidant.
A kind of 9. preparation method of PVC wood plastic composite material for decoration according to claim 1, it is characterised in that step（2）
Described in ultra-violet absorber be Ultraviolet Absorber UV-P, ultra-violet absorber UV-O, in ultra-violet absorber UV-9
Any one.
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