CN108440860A - A kind of PVC building templates and its formula, preparation method - Google Patents
A kind of PVC building templates and its formula, preparation method Download PDFInfo
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- CN108440860A CN108440860A CN201810181445.2A CN201810181445A CN108440860A CN 108440860 A CN108440860 A CN 108440860A CN 201810181445 A CN201810181445 A CN 201810181445A CN 108440860 A CN108440860 A CN 108440860A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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
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- 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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- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- 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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- 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
- C08J9/04—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
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
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- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- 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
- B32B2419/00—Buildings or parts thereof
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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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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
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Abstract
The component of a kind of PVC building templates, the PVC building templates includes PVC reclaimed materials, ultra-high molecular weight polyethylene and desulfurization lime slag, and the desulfurization lime slag is that lime carries out the product after dry desulfurization.It is different from the prior art, above-mentioned technical proposal provides the PVC building templates of three-layer composite structure, and the hardness of both upper and lower epidermal layers is higher, and middle layer toughness is higher, and in the case where ensureing hardness, strong shock resistance improves the stability of template;Addition ultra-high molecular weight polyethylene and desulfurization lime slag in raw material simultaneously, improve the toughness of template, enhance shock resistance, improve the stability of template, improve the heat distortion temperature of PVC building templates, resistance to ag(e)ing reduces cost.
Description
Technical field
The present invention designs a kind of building template, and in particular to a kind of PVC building templates and its formula, preparation method.
Background technology
In the constructions such as house construction, bridge, tunnel construction and brick production, concrete pouring technology is often applied, is mixed
Solidifying soil casting process needs template.Conventional template includes plank and steel plate, due to plank resource scarcity, steel plate again it is too heavy, now by
Gradually use synthesis building template instead.Now synthesis building template wherein there are commonly wood plastic building mould, wood plastic building mould be by
The regenerated particles such as waste plastics PP, ABS, PVC reclaimed materials, PE form, and the inside is given birth to mixed with wood powder or plant rod powder for filler material
Production forms (black), and disadvantage is:Under the sun be heated can deform, subzero nail one nail can occur cracking, when high-altitude is dropped
When easily rupturable, winter cannot construct;Another kind is mountain flour plastic building template.Mountain flour plastic building template be by waste plastics PP,
The regenerated particles such as ABS, PVC reclaimed materials, PE form, and the inside filler is mountain flour, the shortcomings that plate equally exist under the sun by
Thermal deformation, the nail of subzero nail one can crack, easily rupturable, winter is dropped in high-altitude to construct.Currently, synthesis building template is most
Big drawback is that thermal stability is bad, and wave-like occurs in template face when the temperature is excessively high, and the number of turnover is few.Above two synthesis simultaneously
Building template spells that mould is inconvenient, and loss is big there is also specification is few, and surface is easy viscous concrete, and when use needs brush releasing agent,
Demoulding trouble;Meeting water template will appear lamination simultaneously, and fritter can only be used assembled, time-consuming;The useless template of fritter is without profit
It is not recyclable with value.
In the building template that a variety of materials make, the advantage of plastic formwork more, recyclable reconstruction with its number of turnover, by
Step replaces pervious wooden, bamboo matter and steel template, becomes the trend of building template future development.Plastic formwork intensity height, work
Skill is simple, good economy performance, demoulding is easy, plasticity is good, will have wide practical use in construction market, its use can significantly
Ground reduces building cost, accelerates speed of application, improves construction quality.Due to its high recycling rate, use will be state
Family and society save vast resources.Simultaneously because the technology for producing plastic formwork with waste plastic has large-scale popularization and uses
Possibility, therefore the application of plastic formwork will bring a change to construction industry.
There are complex process, building templates of high cost, obtaining to hold for existing PVC reclaimed materials building template formula and technique
Yielding, the shortcomings of service life is short, prepared the thermo-labile of PVC reclaimed materials template products, anti-impact are poor.
For some problems that above-mentioned template is brought as building template, during number of patent application is 201110307112.8
State's invention patent discloses a kind of panel and preparation method thereof of combined type PVC reclaimed materials building templates, is mainly returned using PVC
Rewinding resin SG-5 is major ingredient, using calcium zinc stabilizer, light caco3, Du Pont's titanium dioxide, impact modifier, UV Absorption
Agent, reinforcing agent be auxiliary material, above-mentioned major ingredient is blended with auxiliary material, extrusioning shaping, traction, product cut.Although the invention improves
The security performance of building, good seismic performance, while the secondary painting paint of workshop metope is eliminated, it is environment friendly and pollution-free.But
The shock resistance and Vicat softening point of such building template are poor.
The Chinese invention patent of application number 201310356922.1 proposes to increase PVC recycling with alkali-free milled glass fiber
Expect the method for heat resistance and impact strength, but overall cost is slightly higher.
In 103602008 B of Chinese invention patent CN, core is made in proposition -- and shell structure impact modifier, obtained highly resistance are leapt high
Toughness PVC building templates.
Invention content
For this reason, it may be necessary to provide a kind of PVC building templates inexpensive, excellent in cushion effect, hardness is high, heat resistance is strong.
To achieve the above object, a kind of PVC building templates are inventor provided, the component of the PVC building templates includes
PVC reclaimed materials, ultra-high molecular weight polyethylene and desulfurization lime slag, the desulfurization lime slag are that lime carries out the production after dry desulfurization
Object.
Further, the PVC building templates are three-layer composite structure, including upper and lower epidermis and middle layer;
The epidermis is grouped as by the group of following parts by weight:95-105 parts of PVC reclaimed materials, ultra-high molecular weight polyethylene 3-
15 parts, 5-30 parts of desulfurization lime slag, 0.2-1 parts of stearic acid, 0.4-0.8 parts of PE waxes, 1-5 parts of anti-impact modifier, processing aid
0.5-2 parts, 2-3.6 parts of stabilizer;
The middle layer is grouped as by the group of following parts by weight:95-105 parts of PVC reclaimed materials, ultra-high molecular weight polyethylene 3-
20 parts, 5-30 parts of desulfurization lime slag, 2-5 parts of foaming control agent, 0.6-2.2 parts of white hair infusion NC, yellow blowing agent AC 0.2-1.4
Part, 0.2-1 parts of stearic acid, 0.4-0.8 parts of PE waxes, 1-5 parts of anti-impact modifier, 0.5-2 parts of processing aid, stabilizer 2-3.6
Part.
Further, the epidermis is grouped as by the group of following parts by weight:100 parts of PVC reclaimed materials, super high molecular weight are poly-
5 parts of ethylene, 15 parts of desulfurization lime slag, 0.5 part of stearic acid, 0.6 part of PE waxes, 2 parts of anti-impact modifier, 1.2 parts of processing aid, surely
Determine 2.4 parts of agent.
Further, the middle layer is grouped as by the group of following parts by weight:100 parts of PVC reclaimed materials, super high molecular weight are poly-
8 parts of ethylene, 15 parts of desulfurization lime slag, 4 parts of foaming control agent, 0.5 part of white hair infusion NC, 0.3 part of yellow blowing agent AC, stearic acid
0.3 part, 0.5 part of PE waxes, 2 parts of anti-impact modifier, 1 part of processing aid, 2.2 parts of stabilizer.
Further, the main component of the foaming control agent is acrylic acid esters co-polymer, the anti-impact modifier
Main component be haloflex, the main component of the processing aid is acrylic acid esters co-polymer, and the stabilizer is
Nontoxic zinc calcium stable agent.
Further, the thickness of the template is 5-35mm, and wherein the thickness of epidermis is 0.5-3mm, intermediate layer thickness
For 3-32mm.
Further, the PVC reclaimed materials is 80 mesh powders through broken and fine grinding before feeding intake.
Further, the granularity of the desulfurization lime slag is 400 mesh or more.
Inventor additionally provides a kind of preparation method of PVC building templates, includes the following steps:
Prepare mixture:Epidermis mixture and middle layer mixture are prepared respectively,
The epidermis mixture for preparing includes:Match by the epidermis parts by weight described in any one of above technical scheme
Than, by PVC reclaimed materials, ultra-high molecular weight polyethylene, desulfurization lime slag, stearic acid, PE waxes, anti-impact modifier, processing aid,
Stabilizer mixes, and 5-20 minutes, speed of agitator 300-1200r/min are stirred at 110-130 DEG C, after the completion of stirring, by table
Cortex mixture be cooled to 40-50 DEG C it is spare;
The preparation middle layer mixture includes:By by the middle layer parts by weight described in any one of above technical scheme
Proportioning, by PVC reclaimed materials, ultra-high molecular weight polyethylene, desulfurization lime slag, foaming control agent, white hair infusion NC, yellow foaming agent
AC, stearic acid, PE waxes, anti-impact modifier, processing aid, stabilizer mixing, 5-20 minutes, stirring are stirred at 110-130 DEG C
Rotating speed is 300-1200r/min, after the completion of stirring, by middle layer mixture be cooled to 40-50 DEG C it is spare;
Squeeze out PVC reclaimed materials templates:The epidermis mixture and the middle layer mixture are separately added into three layers to squeeze
Go out in two hoppers of machine, by 2:The weight ratio of 6-8 squeezes out PVC building templates, in extrusion, extruder electrical heating temperature control
At 140-180 DEG C, the PVC building templates of extrusion are molded laminating machine with cooling water and are cooled and shaped system;
Cutting:The PVC building templates of cooling and shaping are cut by size requirement.
Further, in the extrusion PVC reclaimed materials template steps, in extrusion, the control of extruder electrical heating temperature
At 170 DEG C.
It is different from the prior art, above-mentioned technical proposal provides the PVC building templates of three-layer composite structure, both upper and lower epidermal layers
Hardness it is higher, middle layer toughness is higher, and template hardness is strong, strong shock resistance, improves the stability of template;Simultaneously in raw material
Ultra-high molecular weight polyethylene and desulfurization lime slag are added, the toughness of template is improved, enhances shock resistance, improve template
Stability, improves the heat distortion temperature of template, and resistance to ag(e)ing reduces cost.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
Example is applied to be explained in detail.
Ultra-high molecular weight polyethylene described in present embodiment, English name ultra-high molecular weight
Polyethylene (abbreviation UHMWPE) is the unbranched linear polyethylene of 1,500,000 or more molecular weight.Molecular formula:—(—
CH2-CH2-)-n-, density:0.920~0.964g/cm3.Ultra-high molecular weight polyethylene heat distortion temperature (0.46MPa) 85
DEG C, 130-136 DEG C of fusing point.
Desulfurization lime described in present embodiment is that lime carries out the product after dry desulfurization, include mainly calcium sulfite,
Calcium sulfate, calcium oxide, calcium hydroxide and calcium carbonate also contain a small amount of heavy metal element, belong to the high sulfur type mixture of high calcium.
In embodiment of the present invention, ultra-high molecular weight polyethylene used, buying contains modified plastics auxiliary agent from Longyan sea to be had
Limit company, model L150.Foaming control agent is purchased from Shanghai Jie Shangjie Chemical Co., Ltd.s, model K288P.White hair steeps
Agent NC is purchased from Shanghai Jie Shangjie Chemical Co., Ltd.s, model W25KC.Yellow blowing agent AC, buying are upper outstanding chemical from Shanghai outstanding person
Co., Ltd, model F10KC.Stearic acid is purchased from Shandong Hong Fu Chemical Co., Ltd.s.PE waxes are to purchase from the macro good fortune in Shandong
Learn Co., Ltd.Anti-impact modifier is purchased from Shandong Hong Fu Chemical Co., Ltd.s, model CPE135.Processing aid, buying
It is HF-401B from Shandong Hong Fu Chemical Co., Ltd.s.Stabilizer is nontoxic zinc calcium compound stabilizer, and buying is upper outstanding from Shanghai outstanding person
Chemical Co., Ltd., model CZ820.Three layers of extruder used in present embodiment are that 80/65 type of Shanghai longitude and latitude company is total
Squeeze equipment.
Embodiment 1
Prepare epidermis mixture:By weight ratio, by PVC reclaimed materials 100kg, ultra-high molecular weight polyethylene 3kg, grain
Spend the desulfurization lime slag 5kg, stearic acid, 0.2kg of 400 mesh or more, PE waxes, 0.4kg, anti-impact modifier 1kg, processing aid
0.5kg, stabilizer 2kg are added in batch mixer, and 20 minutes, speed of agitator 400r/min are stirred at 120 DEG C, after the completion of stirring,
By epidermis mixture be cooled to 45 DEG C it is spare;
Prepare middle layer mixture:By weight ratio, by PVC reclaimed materials 100kg, ultra-high molecular weight polyethylene 3kg,
Desulfurization lime slag 5kg more than 400 mesh, foaming control agent 2kg, white hair infusion NC, 0.6kg, yellow blowing agent AC 0.2kg, hard ester
Sour 0.2kg, PE wax 0.4kg, anti-impact modifier 1kg, processing aid 0.5kg, stabilizer 2kg is added in batch mixer, at 120 DEG C
Stir 10 minutes, speed of agitator 400r/min, after the completion of stirring, by epidermis mixture be cooled to 45 DEG C it is spare;
The middle layer mixture of the epidermis mixture of preparation and preparation is separately added into 2 different material of three layers of extruder
In bucket, is discharged in 2 to 7 ratio by two Screw Extrusion portions in extruder, PVC building templates is squeezed out by extruder,
In extrusion, extruder electrical heating temperature is controlled at 170 DEG C;The PVC building templates of extrusion with cooling water be molded laminating machine into
Row is cooled and shaped;
The PVC building templates of cooling and shaping are cut by size requirement.
Template thickness prepared by embodiment 1 is 16mm, and the wherein thickness of epidermis is 1mm, and the thickness of middle layer is
14mm。
PVC building templates prepared by embodiment 1, Vicat softening point are 78.2 DEG C, bending strength 25.6MPa, impact
Intensity is 14.4kJ/m2Above, shore hardness 78 disclosure satisfy that the demand of construction.
Embodiment 2
Prepare epidermis mixture:By weight ratio, by PVC reclaimed materials 105kg, ultra-high molecular weight polyethylene 15kg,
Desulfurization lime slag 30kg more than 400 mesh, stearic acid 1kg, PE wax 0.8kg, anti-impact modifier 5kg, processing aid 2kg, surely
Determine agent 3.6kg to be added in batch mixer, 5 minutes, speed of agitator 400r/min is stirred at 110 DEG C, after the completion of stirring, by epidermis
Mixture be cooled to 45 DEG C it is spare;
Prepare middle layer mixture:By weight ratio, by PVC reclaimed materials 95kg, ultra-high molecular weight polyethylene 20kg,
Desulfurization lime slag 30kg more than 400 mesh, foaming control agent 5kg, white hair infusion NC2.2kg, yellow blowing agent AC 1.4kg, hard ester
Sour 1kg, PE wax 0.8kg, anti-impact modifier 5kg, processing aid 2kg, stabilizer 3.6kg are added in batch mixer, are stirred at 130 DEG C
Mix 5 minutes, speed of agitator 500r/min, after the completion of stirring, by epidermis mixture be cooled to 45 DEG C it is spare;
The epidermis mixture of preparation and middle layer mixture are separately added into 2 hoppers of three layers of extruder, passed through
Two Screw Extrusion components in extruder discharge in 2 to 8 ratio, and PVC building templates, extrusion are squeezed out by extruder
In, extruder electrical heating temperature is controlled at 180 DEG C;The PVC building templates of extrusion are molded laminating machine with cooling water and are cooled to
Type;
The PVC building templates of cooling and shaping are cut by size requirement.
Template thickness prepared by embodiment 2 is 14mm, and the wherein thickness of epidermis is 0.8mm, and the thickness of middle layer is
12.4mm。
PVC building templates prepared by embodiment 2,80.6 DEG C of Vicat softening point, bending strength 24.4MPa, impact are strong
Spend 15.8kJ/m2Above, shore hardness 75 are fully able to meet the needs of construction.
Embodiment 3
Prepare epidermis mixture:By weight ratio, by PVC reclaimed materials 95kg, ultra-high molecular weight polyethylene 5kg, 400
Desulfurization lime slag 15kg more than mesh, stearic acid 0.5kg, PE wax 0.6kg, anti-impact modifier 2kg, processing aid 1.2kg, surely
Determine agent 2.4kg to be added in batch mixer, 20 minutes, speed of agitator 300r/min is stirred at 110 DEG C, after the completion of stirring, by epidermis
Layer mixture be cooled to 45 DEG C it is spare;
Prepare middle layer mixture:By weight ratio, by PVC reclaimed materials 105kg, ultra-high molecular weight polyethylene 8kg,
Desulfurization lime slag 15kg more than 400 mesh, foaming control agent 4kg, white hair infusion NC0.5kg, yellow blowing agent AC 0.3kg, hard ester
Sour 0.3kg, PE wax 0.5kg, anti-impact modifier 2kg, processing aid 1kg, stabilizer 2.2kg is added in batch mixer, at 120 DEG C
Stir 15 minutes, speed of agitator 400r/min, after the completion of stirring, by epidermis mixture be cooled to 45 DEG C it is spare;
The epidermis mixture of preparation and middle layer mixture are separately added into two hoppers of three layers of extruder, passed through
Two Screw Extrusion components in extruder discharge in 2 to 6 ratio, and PVC building templates, extrusion are squeezed out by extruder
In, extruder electrical heating temperature is controlled at 155 DEG C;The PVC building templates of extrusion are molded laminating machine with cooling water and are cooled to
Type;
The PVC building templates of cooling and shaping are cut by size requirement.
Template thickness prepared by embodiment 3 is 20mm, and the wherein thickness of epidermis is 1mm, and the thickness of middle layer is
18mm。
PVC building templates prepared by embodiment 3,79.6 DEG C of Vicat softening point, bending strength 25.2MPa, impact are strong
Degree is 15.0kJ/m2, shore hardness 76, disclosure satisfy that the demand of construction.
PVC building templates prepared by above example, 79 DEG C of Vicat softening point or more, bending strength are 24MPa or more, rush
Hit intensity 14kJ/m2Above, shore hardness is not less than 68, it was demonstrated that PVC building templates prepared by the present invention are excellent in cushion effect,
Hardness is high, heat resistance is strong, disclosure satisfy that the demand of construction.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or terminal device including a series of elements include not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or end
The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... "
Element, it is not excluded that there is also other elements in process, method, article or the terminal device including the element.This
Outside, herein, " being more than ", " being less than ", " being more than " etc. are interpreted as not including this number;" more than ", " following ", " within " etc. understandings
It includes this number to be.
It should be noted that although the various embodiments described above have been described herein, it is not intended to limit
The scope of patent protection of the present invention.Therefore, based on the present invention innovative idea, to embodiment described herein carry out change and repair
Change or the equivalent structure or equivalent process transformation made by using the contents of the present specification, directly or indirectly by the above technology
Scheme is used in other related technical areas, is included within the scope of patent protection of the present invention.
Claims (10)
1. a kind of PVC building templates, which is characterized in that the component of the PVC building templates includes PVC reclaimed materials, supra polymer
Weight northylen and desulfurization lime slag, the desulfurization lime slag are that lime carries out the product after dry desulfurization.
2. PVC building templates according to claim 1, which is characterized in that the PVC building templates are three layers of composite junction
Structure, including upper and lower epidermis and middle layer;
The epidermis is grouped as by the group of following parts by weight:95-105 parts of PVC reclaimed materials, ultra-high molecular weight polyethylene 3-15
Part, 5-30 parts of desulfurization lime slag, 0.2-1 parts of stearic acid, 0.4-0.8 parts of PE waxes, 1-5 parts of anti-impact modifier, processing aid
0.5-2 parts, 2-3.6 parts of stabilizer;
The middle layer is grouped as by the group of following parts by weight:95-105 parts of PVC reclaimed materials, ultra-high molecular weight polyethylene 3-20
Part, 5-30 parts of desulfurization lime slag, 2-5 parts of foaming control agent, NC0.6-2.2 parts of white hair infusion, yellow blowing agent AC 0.2-1.4 parts,
0.2-1 parts of stearic acid, 0.4-0.8 parts of PE waxes, 1-5 parts of anti-impact modifier, 0.5-2 parts of processing aid, 2-3.6 parts of stabilizer.
3. PVC building templates according to claim 2, which is characterized in that the epidermis by following parts by weight component
Composition:100 parts of PVC reclaimed materials, 5 parts of ultra-high molecular weight polyethylene, 15 parts of desulfurization lime slag, 0.5 part of stearic acid, 0.6 part of PE waxes,
2 parts of anti-impact modifier, 1.2 parts of processing aid, 2.4 parts of stabilizer.
4. PVC building templates according to claim 2, which is characterized in that the middle layer by following parts by weight component
Composition:100 parts of PVC reclaimed materials, 8 parts of ultra-high molecular weight polyethylene, 15 parts of desulfurization lime slag, 4 parts of foaming control agent, white hair infusion
0.5 part of NC, 0.3 part of yellow blowing agent AC, 0.3 part of stearic acid, 0.5 part of PE waxes, 2 parts of anti-impact modifier, 1 part of processing aid,
2.2 parts of stabilizer.
5. PVC building templates according to claim 2, which is characterized in that the main component of the foaming control agent is third
The main component of olefin(e) acid lipin polymer, the anti-impact modifier is haloflex, the main component of the processing aid
For acrylic acid esters co-polymer, the stabilizer is nontoxic zinc calcium stable agent.
6. PVC building templates according to claim 2, which is characterized in that the thickness of the template is 5-35mm, wherein table
The thickness of cortex is 0.5-3mm, intermediate layer thickness 3-32mm.
7. PVC building templates according to claim 1, which is characterized in that the PVC reclaimed materials is before feeding intake through being crushed simultaneously
Fine grinding is 80 mesh powders.
8. PVC building templates according to claim 1, which is characterized in that the granularity of the desulfurization lime slag be 400 mesh with
On.
9. a kind of preparation method of PVC building templates, which is characterized in that include the following steps:
Prepare mixture:Epidermis mixture and middle layer mixture are prepared respectively,
The epidermis mixture for preparing includes:By claim 2 to 8 any one of them epidermis weight, by PVC
Reclaimed materials, ultra-high molecular weight polyethylene, desulfurization lime slag, stearic acid, PE waxes, anti-impact modifier, processing aid, stabilizer are mixed
It closes, 5-20 minutes, speed of agitator 300-1200r/min is stirred at 110-130 DEG C, after the completion of stirring, by epidermis mixture
Be cooled to 40-50 DEG C it is spare;
The preparation middle layer mixture includes:It, will by the middle layer weight described in claim 2 to 8 any one
PVC reclaimed materials, ultra-high molecular weight polyethylene, desulfurization lime slag, foaming control agent, white hair infusion NC, yellow blowing agent AC, hard ester
Acid, PE waxes, anti-impact modifier, processing aid, stabilizer mixing, stirred at 110-130 DEG C 5-20 minutes, speed of agitator be
300-1200r/min, after the completion of stirring, by middle layer mixture be cooled to 40-50 DEG C it is spare;
It squeezes out PVC and returns epidermis mixture rewinding template:The epidermis mixture and the middle layer mixture are added respectively
In two hoppers for entering three layers of extruder, by 2:The weight ratio of 6-8 squeezes out PVC building templates, in extrusion, squeeze out it is electromechanical plus
At 140-180 DEG C, the PVC building templates of extrusion are molded laminating machine with cooling water and are cooled and shaped for hot temperature control;
Cutting:The PVC building templates of cooling and shaping are cut by size requirement.
10. the preparation method of PVC building templates according to claim 9, which is characterized in that the extrusion PVC reclaimed materials
In template step, in extrusion, extruder electrical heating temperature is controlled at 170 DEG C.
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