CN108997676A - A kind of bent PVC low ratio foamed plate and preparation method thereof - Google Patents
A kind of bent PVC low ratio foamed plate and preparation method thereof Download PDFInfo
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- CN108997676A CN108997676A CN201810958893.9A CN201810958893A CN108997676A CN 108997676 A CN108997676 A CN 108997676A CN 201810958893 A CN201810958893 A CN 201810958893A CN 108997676 A CN108997676 A CN 108997676A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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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
- C08J9/08—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 carbon dioxide
-
- 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
-
- 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
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- 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
-
- 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
- C08J2203/18—Binary blends of expanding agents
-
- 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
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
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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
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
A kind of bent PVC low ratio foamed plate provided by the invention and preparation method thereof, including a middle layer, an outer layer is attached on the middle layer upper and lower surfaces, two outer layer is respectively a PVC material layer, the middle layer is the low foam layer of PVC, and the PVC material layer includes following batch ingredients: polyvinyl chloride resin, heat stabilizer, lubricant, plasticizer and processing aid；The low foam layer includes following batch ingredients: polyvinyl chloride resin, heat stabilizer, lubricant, plasticizer, middle layer processing aid, foaming agent and filler；Wherein the heat stabilizer is calcium zinc stabilizer, the processing aid that the PVC material layer material uses includes ACR impact modifier and haloflex, the foaming agent is compound foaming agent, it is made by azodicarbonamide and sodium bicarbonate by weight 1:3, and the lubricant includes G60, stearic acid and polyethylene wax.The present invention has excellent bending performance, is the green material to mould Dai Mu, can be widely used in building decoration area.
Description
Technical field
The present invention relates to building decorative plates processing technique field, refer in particular to a kind of bent PVC low ratio foamed plate and its
The bent PVC low ratio foamed plate of preparation method, preparation is mainly used in the fields such as wall body decoration or space partition.
Background technique
PVC (polyvinyl chloride) low ratio foamed plate it as one of the typical new chemical building materials to mould Dai Mu, be it is a kind of very
Ideal Green environmental-protection building ornament materials is widely used in the row such as car and boat manufacture, furniture, kitchen and bath's material and decorations
Industry.
It is all to directly adopt timber or wallpaper to coat metope or furniture etc. in traditional decorations industry
Decoration, it is not ideal environment-friendly materials that the use of timber is very unfriendly to environment, and wallpaper and timber etc. easily occur the moisture absorption and
Quality is not hard enough, can not play cladding protective effect very well, maintenance cost is high, and soundproof effect is not ideal enough.Using biography
When the PVC board of system is used for the decoration of metope, existing assembling process is cumbersome, and metope is cambered or turning and attachment it is more
When prism, traditional PVC board bending part of direct bending is easy to that crackle occurs or fractures, it is necessary to by it according to splicing after opening, so
And the gap of junction needs to do further modification and could eliminate, this greatly reduces the decorative effect of whole wall or whole column, increases
The workload of finishing.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide it is a kind of it is environmentally protective, structural strength is high, moisture-proof, sound insulation
Effect it is good and can bending bent PVC low ratio foamed plate and preparation method thereof, effective solution defect in the prior art mentions
High decorative effect.
A kind of bent PVC low ratio foamed plate provided by the invention, including a middle layer, on the middle layer upper and lower surfaces
It is attached with an outer layer, two outer layer is respectively a PVC material layer, and the middle layer is the low foam layer of PVC, the PVC
Material layers include the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin, 3~6 parts of heat stabilizer, lubricant 0.5~3.2
Part, 0.4~3 part of plasticizer and 6~15 parts of processing aid；The low foam layer includes the batch ingredients of following weight proportion:
100 parts of polyvinyl chloride resin, 3~6 parts of heat stabilizer, 0.5~3.2 part of lubricant, 0.4~3 part of plasticizer, middle layer processing aid 6~
15 parts, 0.5~2.5 part of foaming agent and 50~100 parts of filler；Wherein the heat stabilizer is calcium zinc stabilizer, the PVC material
The processing aid that matter layer material uses includes ACR impact modifier and haloflex, and the foaming agent is compound foaming agent,
It is made by azodicarbonamide and sodium bicarbonate by weight 1:3, and the lubricant includes G60, stearic acid and polyethylene
Wax.
Preferably, the lubricant is by G60, stearic acid and polyethylene wax difference 0.2~1 part, 0.2~1 by weight ratio
Part mixes with 0.1~1.2 part.
Preferably, the middle layer processing aid includes methyl methacrylate, styrene or combinations thereof.
Further, the middle layer processing aid is methyl methacrylate.
Preferably, the filler is the precipitated calcium carbonate obtained in advance through silane coupling agent surface modification treatment, and surface changes
Property after precipitated calcium carbonate can reduce the viscosity and surface tension of regional area, to be easy adsorbed gas when foaming agent decomposes
Body forms nuclei of bubbles, and enhanced foaming effect improves abscess quality, improves the intensity of foaming product.
Preferably, the PVC material layer and the plasticizer of the low foam layer include by weight for 0.4~1 part
Oxidized polyethylene wax, 1.5~3 parts epoxidized soybean oil or combinations thereof.
The present invention also provides a kind of preparation method of bent PVC low ratio foamed plate, the PVC material layer and the low ratio foamed
Individually mixing individually squeezes out layer, and step includes:
The first step weighs the material of low foam layer and PVC material layer according to the ratio respectively, and is added into different mixings
Machine carries out mixing, wherein the requirement of the batch mixer mixing procedure of the low foam layer and PVC material layer is identical, the specific process is as follows:
1) mixed at high speed, i.e., hot mixed, the speed stirring material that low rate start is stablized with 1600~2650r/min, 10~
Material is heated to 95~120 DEG C by the internal friction heating of heating device and material by 15min, then material feeding low speed is mixed
It attaches together to set and be mixed；
2) mixed on low speed, i.e., it is cold mixed, material is cooled to 40~65 DEG C, while holding with the speed of 1100~1500r/min
Continuous stirring 15~20min of material；
Uniformly mixed low foam layer material is passed through the first extruder by second step, and the PVC material layer material is passed through the
Two extruders, squeeze out respectively；
Third step, the low foam layer material enters one intermediate flow channel through one first feeding inlet of a distributor, described
PVC material layer material is dispersed into its internal upper runner and a lower flow channel after one second feeding inlet of the distributor,
The low foam layer material and the PVC material layer material enter mold figuration in a discharge outlet of the distributor together；
4th step leads the PVC low ratio foamed plate after cooling and shaping into cooling and shaping, then by more rubber roller mode of traction
Out, last cut product；
5th step, bending process offer the through slot of a predetermined quantity on the plate, and the through slot runs through low ratio foamed
Layer and the PVC material layer being attached in low foam layer, i.e., only retain one layer of PVC material layer.
Preferably, upper runner described in the distributor and the control of the temperature parameter of the lower flow channel are at 140~170 DEG C.
Preferably, required coolant water temperature is 15 DEG C~28 DEG C when the cooling and shaping, guarantees the bright and clean of plate surface
The foaming quality of degree and low foam layer.
Preferably, the hauling speed that more rubber rollers are led is 0.4~0.75m/min, is guaranteed uniform after plate membrane forms
It involves, processes different shape and size plate.
Beneficial effects of the present invention:
Compared with prior art, a kind of bent PVC low ratio foamed plate provided by the invention and preparation method thereof, passes through bendable
It rolls over PVC material layer described in PVC low ratio foamed plate and uses ACR impact modifier, enhance the toughness and impact resistance of its outer layer, i.e.,
PVC material layer has good fatigue strength, guarantees not cracked when decoration bending or fractures；The low foam layer passes through spy
Determine technological forming, can effectively be decayed the transmitting of sound inside it using its special low ratio foamed structure, thus play every
Audio fruit, further low foam layer use low foam layer, and propose product structure intensity has arrived raising, while saving raw material
Investment, by the integrated formed structure of PVC material layer and low foam layer, had not only remained good mechanical property but also had realized bending
Effect has good application prospect in building decorative plates processing technique field as a kind of green material, is a kind of
To mould the typical material of Dai Mu.
Detailed description of the invention
Fig. 1 is the preparation method flow diagram of bent PVC low ratio foamed plate provided in an embodiment of the present invention；
Specific embodiment
Technical scheme is described further with reference to the accompanying drawings and embodiments.
Embodiment 1
A kind of bent PVC low ratio foamed plate provided by the invention, including a middle layer, on the middle layer upper and lower surfaces
It is attached with an outer layer, two outer layer is respectively a PVC material layer, and the middle layer is PVC low foam layer, the PVC material
Matter layer and the low foam layer are integrally formed by co-extrusion, and the low foam layer and the PVC material layer is made to combine closely.
The PVC material layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
5.6 parts of stabilizer；Lubricant mixes 3.2 parts by 1 part, 1 part and 1.2 parts respectively using G60, stearic acid and polyethylene wax；
Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 2.6 parts of epoxidized soybean oil；Processing
Auxiliary agent uses ACR impact modifier and totally 15 parts of polychloride vinyl.
The low foam layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
5.6 parts of stabilizer；Lubricant mixes 3.2 parts by 1 part, 1 part and 1.2 parts respectively using G60, stearic acid and polyethylene wax；
Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 2.6 parts of epoxidized soybean oil；It is intermediate
Layer processing aid can be used methyl methacrylate, styrene individually or combinations thereof, the present embodiment use methyl methacrylate
15 parts；Foaming agent is used as azodicarbonamide and sodium bicarbonate by weight 2.5 parts of compound foaming agent made from 1:3；It fills out
Material is using 100 parts of precipitated calcium carbonate obtained in advance through silane coupling agent surface modification treatment.
Refering to fig. 1,1 preparation method of embodiment:
The first step weighs object by the parts by weight of the above-mentioned PVC material layer material provided and the low foam layer material
Material, and the weighed PVC material layer material and the low foam layer material are put into different batch mixers respectively and carry out mixing,
Wherein the batch mixer mixing procedure of the low foam layer and PVC material layer requires identical, the specific process is as follows: 1) mixed at high speed,
I.e. hot mixed, low rate start, which is stablized, stirs material 10min with the speed of 1980n/min, is rubbed by the inside of heating device and material
It wipes heating and material is heated to 120 DEG C, then material feeding mixed on low speed device is mixed；2) mixed on low speed, i.e., it is cold mixed, it will
Material is cooled to 60 DEG C, while persistently stirring material 15min with the speed of 1100n/min；
Uniformly mixed low foam layer material is passed through the first extruder by second step, and the PVC material layer material is passed through the
Two extruders, squeeze out respectively, and the first extruder revolving speed is 15r/min, and feeding revolving speed is 22r/min, and described second squeezes out
Machine revolving speed is 10r/min, and feeding revolving speed is 12r/min, and the temperature in first extruder and second extruder barrel
Degree is 175 DEG C of an area, 175 DEG C of 2nd area, 175 DEG C of 3rd area, 175 DEG C of 5th area 4th areas, 175 DEG CJi；
Third step, the low foam layer material enters one intermediate flow channel through one first feeding inlet of a distributor, described
PVC material layer material is dispersed into its internal upper runner and a lower flow channel after one second feeding inlet of the distributor,
And the control of the temperature of the upper runner and the lower flow channel is 165 DEG C, the low foam layer material and PVC material layer material are together at this
The one of distributor states discharge outlet and enters mold figuration, the mold temperature be 170 DEG C of an area, 170 DEG C of 2nd area, 170 DEG C of 3rd area,
Four 170 DEG C of areas, 170 DEG C of 5th area, 170 DEG C of 7th area 6th areas, 170 DEG CJi, 150~165 DEG C of die lip temperature, the present embodiment lip film temperature
Control is at 155 DEG C；
4th step uses water temperature for 18 DEG C of cooling water herein into cooling and shaping, then passes through more rubber roller mode of traction handles
PVC low ratio foamed plate after cooling and shaping involves, and more rubber roller hauling speeds are 0.75m/min, last cut product herein；
5th step, bending process offer the through slot of a predetermined quantity on the plate, and the through slot runs through low ratio foamed
Layer and the PVC material layer being attached in low foam layer, i.e., only retain one layer of PVC material layer, which is inverted
Isosceles trapezoid comprising two sides, the two sides and horizontal plane institute are identical at folder, when bending the through slot two sides realization
It is seamless applying.
According to QB/T2463.3 hard polyvinyl low foamed sheet coextruding method, to bent PVC provided in this embodiment
Low ratio foamed trigger tool performance test results are as follows:
Continuous upper table:
According to upper table, it can be concluded that, its good mechanical performance of bent PVC low ratio foamed plate provided in this embodiment has very
Good bending performance, is the preferred material to mould Dai Mu.
Embodiment 2
It is with 1 difference of embodiment:
The PVC material layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
4 parts of stabilizer；Lubricant mixes 2.6 parts by 0.8 part, 0.8 part and 1 part respectively using G60, stearic acid and polyethylene wax；
Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 3 parts of epoxidized soybean oil；Processing helps
Agent uses ACR impact modifier and totally 10 parts of haloflex.
The low foam layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
4 parts of stabilizer；Lubricant mixes 2.6 parts by 0.8 part, 0.8 part and 1 part respectively using G60, stearic acid and polyethylene wax；
Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 3 parts of epoxidized soybean oil；Middle layer
Processing aid can be used methyl methacrylate, styrene individually or combinations thereof, the present embodiment use methyl methacrylate 10
Part；Foaming agent is used as azodicarbonamide and sodium bicarbonate by weight 2 parts of compound foaming agent made from 1:3；Filler is adopted
With 100 parts of the precipitated calcium carbonate obtained in advance through silane coupling agent surface modification treatment.
Preparation method is the same as embodiment 1.
Embodiment 3
It is with 1 difference of embodiment:
The PVC material layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
3 parts of stabilizer；Lubricant mixes 0.6 by 0.2 part, 0.2 part and 0.2 part respectively using G60, stearic acid and polyethylene wax
Part；Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 2 parts of epoxidized soybean oil；Processing
Auxiliary agent uses ACR impact modifier and totally 6 parts of polychloride vinyl.
The low foam layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
4 parts of stabilizer；Lubricant mixes 2.6 parts by 0.8 part, 0.8 part and 1 part respectively using G60, stearic acid and polyethylene wax；
Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 2 parts of epoxidized soybean oil；Middle layer
Processing aid can be used methyl methacrylate, styrene individually or combinations thereof, the present embodiment use methyl methacrylate 10
Part；Foaming agent is used as azodicarbonamide and sodium bicarbonate by weight 2 parts of compound foaming agent made from 1:3；Filler is adopted
With 100 parts of the precipitated calcium carbonate obtained in advance through silane coupling agent surface modification treatment.
Preparation method is the same as embodiment 1.
Embodiment 4
It is with 1 difference of embodiment:
The PVC material layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
3 parts of stabilizer；Lubricant mixes 0.6 by 0.2 part, 0.2 part and 0.2 part respectively using G60, stearic acid and polyethylene wax
Part；Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 1.5 parts of epoxidized soybean oil；Add
Work auxiliary agent uses ACR impact modifier and totally 6 parts of polychloride vinyl.
The low foam layer includes the batch ingredients of following weight proportion: 100 parts of polyvinyl chloride resin；Heat stabilizer uses calcium zinc
3 parts of stabilizer；Lubricant mixes 0.6 by 0.2 part, 0.2 part and 0.2 part respectively using G60, stearic acid and polyethylene wax
Part；Oxidized polyethylene wax, epoxidized soybean oil or combinations thereof can be used in plasticizer, and the present embodiment uses 1.5 parts of epoxidized soybean oil；In
Interbed processing aid can be used methyl methacrylate, styrene individually or combinations thereof, the present embodiment use methyl methacrylate
6 parts of ester；Foaming agent is used as azodicarbonamide and sodium bicarbonate by weight 0.5 part of compound foaming agent made from 1:3；It fills out
Material is using 100 parts of precipitated calcium carbonate obtained in advance through silane coupling agent surface modification treatment.
Preparation method is the same as embodiment 1.
Wherein bent PVC low ratio foamed plate obtained in embodiment 2~4 is detected its mechanical property and meets QB/
The regulation of T2463.3.
Above description is only the preferable embodiment in part of the present invention, it will be appreciated by those of skill in the art that this
In be merely illustrative, protection scope of the present invention is as defined in appended claims.Therefore special with regard to the present patent application
Change on an equal basis made by sharp range, still falls within the range that the present invention is covered.
Claims (10)
1. a kind of bent PVC low ratio foamed plate, which is characterized in that including a middle layer, on the middle layer upper and lower surfaces
It is attached with an outer layer, two outer layer is respectively a PVC material layer, and the middle layer is a PVC low foam layer；
The PVC material layer includes the batch ingredients of following weight proportion:
The low foam layer includes the batch ingredients of following weight proportion:
The heat stabilizer is calcium zinc stabilizer；
The processing aid that the PVC material layer uses includes ACR impact modifier and haloflex；
The foaming agent is compound foaming agent, is made by azodicarbonamide and sodium bicarbonate by weight 1:3；
The lubricant includes G60, stearic acid and polyethylene wax.
2. bent PVC low ratio foamed plate according to claim 1, which is characterized in that the lubricant is by G60, stearic acid
0.2~1 part by weight ratio, 0.2~1 part and 0.1~1.2 part mix respectively with polyethylene wax.
3. bent PVC low ratio foamed plate according to claim 1, which is characterized in that the middle layer processing aid is first
Base methyl acrylate, styrene individually or combinations thereof.
4. bent PVC low ratio foamed plate according to claim 3, which is characterized in that the middle layer processing aid is first
Base methyl acrylate.
5. bent PVC low ratio foamed plate according to claim 1, which is characterized in that the filler is in advance through silane idol
The precipitated calcium carbonate that connection agent surface modification treatment obtains.
6. according to claim 1 can bending PVC low ratio foamed plate, which is characterized in that the PVC material layer and the low hair
The plasticizer of alveolar layer includes by weight for 0.4~1 part of oxidized polyethylene wax, 1.5~3 parts of epoxidized soybean oil or its group
It closes.
7. a kind of preparation method of the bent PVC low ratio foamed plate of any one of Claims 1-4, which is characterized in that described
PVC material layer and the independent mixing of the low foam layer individually squeeze out；
Step includes:
The first step weighs the material of low foam layer and PVC material layer according to the ratio respectively, and be added into different batch mixers into
Row mixing, wherein the requirement of the batch mixer mixing procedure of the low foam layer and PVC material layer material is identical, the specific process is as follows:
1) mixed at high speed, i.e., hot mixed, low rate start, which is stablized, stirs material with the speed of 1600~2650r/min, and 10~15min is logical
Material is heated to 95~120 DEG C by the internal friction heating for crossing heating device and material, then material is sent into mixed on low speed device
It is mixed；
2) mixed on low speed, i.e., it is cold mixed, material is cooled to 40~65 DEG C, while persistently stirring with the speed of 1100~1500r/min
Mix 15~20min of material；
Uniformly mixed low foam layer material is passed through the first extruder by second step, and the PVC material layer material is passed through second and squeezes
Machine out squeezes out respectively；
Third step, the low foam layer material enter one intermediate flow channel, the PVC material through one first feeding inlet of a distributor
Matter layer material is dispersed into its internal upper runner and a lower flow channel after one second feeding inlet of the distributor, described low
Foaming layer material and the PVC material layer material enter mold figuration in a discharge outlet of the distributor together；
4th step involves the PVC low ratio foamed plate after cooling and shaping into cooling and shaping, then by more rubber roller mode of traction, most
Cut product afterwards；
5th step, bending process offer the through slot of a predetermined quantity on the plate, the through slot through low foam layer with
And be attached to the PVC material layer in low foam layer, i.e., only retain one layer of PVC material layer.
8. bent PVC low ratio foamed plate preparation method according to claim 7, which is characterized in that described in the distributor
Upper runner and the control of the temperature parameter of the lower flow channel are at 140~170 DEG C.
9. bent PVC low ratio foamed plate preparation method according to claim 7, which is characterized in that when the cooling and shaping
Required coolant water temperature is 15 DEG C~28 DEG C.
10. bent PVC low ratio foamed plate preparation method according to claim 7, which is characterized in that more rubber rollers were led
Hauling speed is 0.4-0.75m/min.
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| CN201810958893.9A CN108997676A (en) | 2018-08-22 | 2018-08-22 | A kind of bent PVC low ratio foamed plate and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536928A (en) * | 2018-03-16 | 2019-12-03 | 上海协承昌化工有限公司 | A kind of bent plate |
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| CN102490427A (en) * | 2011-12-06 | 2012-06-13 | 山东博拓塑业股份有限公司 | Polyvinyl chloride co-extrusion foam board and preparation method thereof |
| CN202319098U (en) * | 2011-11-11 | 2012-07-11 | 曾庆贤 | Composite plate |
| CN108239356A (en) * | 2018-01-26 | 2018-07-03 | 湖南五祥新材料科技有限公司 | A kind of PVC composite plates and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202319098U (en) * | 2011-11-11 | 2012-07-11 | 曾庆贤 | Composite plate |
| CN102490427A (en) * | 2011-12-06 | 2012-06-13 | 山东博拓塑业股份有限公司 | Polyvinyl chloride co-extrusion foam board and preparation method thereof |
| CN108239356A (en) * | 2018-01-26 | 2018-07-03 | 湖南五祥新材料科技有限公司 | A kind of PVC composite plates and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536928A (en) * | 2018-03-16 | 2019-12-03 | 上海协承昌化工有限公司 | A kind of bent plate |
| CN110536928B (en) * | 2018-03-16 | 2021-10-01 | 上海协承昌化工有限公司 | Bendable plate |
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