CN102604254A - Double-layer PVC (Poly Vinyl Chloride) composite material and preparation method thereof - Google Patents
Double-layer PVC (Poly Vinyl Chloride) composite material and preparation method thereof Download PDFInfo
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- CN102604254A CN102604254A CN2012100141424A CN201210014142A CN102604254A CN 102604254 A CN102604254 A CN 102604254A CN 2012100141424 A CN2012100141424 A CN 2012100141424A CN 201210014142 A CN201210014142 A CN 201210014142A CN 102604254 A CN102604254 A CN 102604254A
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Abstract
The invention provides a double-layer PVC (Poly Vinyl Chloride) composite material and a preparation method thereof. The composite material comprises an upper layer and a bottom layer which are formed by up-down co-extrusion. The upper layer comprises the following components in mass percent of 13-17% of PET (Poly Ethylene Terephthalate) resin, 2-4% of plasticizer, 4.5-5.5% of aluminum silver powder, 0.9-1.1% of stabilizing agent, 0.3-1.5% of lubricating agent and residual amount of polyvinyl chloride resin; the lower layer comprises the following components in mass percent of 2-4% of the plasticizer, 0.3-1% of the stabilizing agent, 25-35% of filling agent and residual amount of the polyvinyl chloride resin. The upper layer of the double-layer PVC composite material provided by the invention comprises the aluminum silver powder, and the aluminum silver powder is applicable to filling pits on the surface of the upper layer, so that the surface of the upper layer has high fineness and brightness to satisfy the decorating effect on the surface of the household appliances. The bottom layer is a hard PVC layer and has preferable mechanical properties and product stability, so that the rigid requirements of the entire product can be met.
Description
Technical field
The present invention relates to the technical field of PVC matrix material, specifically is a kind of double-deck PVC matrix material and preparation method thereof.
Background technology
General PVC material is grouped into by one-tenth such as polyvinyl chloride resin, stablizer, lubricant, properties-correcting agent; Mixing of materials evenly back quantitatively adds screw channel; Have screw rod power to be fed forward, the heat effect of machine barrel and the shearing action of screw rod make the material plasticizing fusion, reduce gradually to mouth model cavity sectional area from screw channel; Thereby under the screw rod dynamic action, form certain back pressure, make the PVC forming materials.
The defective of individual layer PVC material be its surperficial crude, do not have smooth finish, must be if just address this problem, but the not environmental protection of this technology to the spraying of polishing of its surface; And it is harmful; Erosion resistance is relatively poor, and resistance to marring is also relatively poor, cannot manipulation of regeneration.
How a kind of any surface finish, nontoxic, pollution-free and lower-cost PVC material are provided, and are the technical barriers that this area will solve.
Summary of the invention
The technical problem that the present invention will solve provides that a kind of any surface finish, step are simple, cost is lower, the double-deck PVC matrix material of environmental protection and preparation method thereof.
In order to solve the problems of the technologies described above, double-deck PVC matrix material provided by the invention comprises: the upper strata of coextrusion mold and bottom up and down; Component that the upper strata comprises and mass percent thereof are: PET resin 13-17%, softening agent 2-4%, aluminium silver powder 4.5-5.5%, stablizer 0.9-1.1%, lubricant 0.3-1.5%, PVC RESINS surplus; Component that bottom comprises and mass percent thereof are: softening agent 2-4%, stablizer 0.3-1%, lubricant 0.3-1%, weighting agent 25-35%, PVC RESINS surplus.
Particularly, said softening agent is: Witcizer 300 or epoxy soybean oil.
Particularly, the stablizer in the said upper strata is: one of UV-531 UV light absorber, anti-oxidant DLTP, the stablizer in the said bottom is: one of calcium stearate, UV-531 UV light absorber, anti-oxidant DLTP.
Particularly, said lubricant is: one of Triple Pressed Stearic Acid, paraffin white oil.
Particularly, the component and the mass percent in bottom thereof that comprise of said weighting agent is: lime carbonate 15-25%, talcum powder 3-6%, thomel 3-6%, fire retardant 0.5-1.5%.
The preparation method of described double-deck PVC matrix material is characterized in that comprising the steps:
Utilize high-speed mixer mix to constitute the raw material of said upper strata and bottom respectively, then respectively through the tablets press granulating and forming, and obtain, bottom moulds grain; Said last, the bottom that drying is good moulded grain respectively through vacuum machine input twin screw extruder coextrusion mold.
As the scheme of optimizing, the temperature of first, the second barrel of said twin screw extruder is set at 110-130 ℃, and first, the second host setting of twin screw extruder is 200-240 ℃.
As the scheme of optimizing; When preparing said upper strata raw material; The mixing stirring velocity of high-speed mixer is controlled to be 1000-1200 rev/min; PET resin and the mixed temperature of PVC RESINS are controlled to 50-60 ℃, add aluminium silver powder then and stir, add softening agent, stablizer and lubricant at last.
As the scheme of optimizing; When the said bottom raw material of preparation; The mixing stirring velocity of high-speed mixer is controlled to be 1000-1800 rev/min, weighting agent and the mixed temperature of PVC RESINS are controlled to 60-90 ℃, add softening agent, stablizer, lubricant then.
Technique scheme of the present invention is compared prior art and is had the following advantages: comprise aluminium silver powder in the upper strata of the double-deck PVC matrix material that (1) the present invention produces; This aluminium silver powder is suitable for filling up the pit of upper surface; Make upper surface have higher smooth finish and brightness, to satisfy the surface decoration effect of home appliance; In addition, because aluminium silver powder cost is higher, therefore only use on the upper strata; Satisfying under the prerequisite of decorative effect, reduce the thickness on upper strata, at lower cost as far as possible.Bottom is the hard PVC layer, has the stability of mechanical property and goods preferably, is suitable for satisfying the requirement of product whole rigidity, and bottom has simultaneously that snappiness is good, easy-formation, be difficult for characteristics such as crisp, nontoxic, pollution-free.(2) the present invention can bring into play the advantage of upper and lower layer material, and promptly upper surface has higher smooth finish and brightness, and bottom is the hard PVC layer, is suitable for satisfying the requirement of product whole rigidity; Overcome the defective of single-material, characteristics such as the double-deck PVC material after the combination has that cost is low, energy consumption is little, pure environmental protection, intensity is high, machine-shaping is convenient in process of production without spray paint, can reach zero and pollute and production again.
Embodiment
Embodiment 1
The double-deck PVC matrix material of present embodiment comprises: the upper strata of coextrusion mold and bottom up and down.
Component that the upper strata comprises and mass percent thereof are: PET resin 15%, softening agent (one of Witcizer 300 3%, epoxy soybean oil 3%), aluminium silver powder 5%, stablizer (one of UV-531 UV light absorber 1%, anti-oxidant DLTP 1%), lubricant (one of Triple Pressed Stearic Acid 0.5%, paraffin white oil 0.5%), PVC RESINS surplus.
Component that bottom comprises and mass percent thereof are: softening agent (one of Witcizer 300 3%, epoxy soybean oil 3%), stablizer (one of calcium stearate 0.5%, UV-531 UV light absorber 0.5%, anti-oxidant DLTP 0.5%), lubricant (one of Triple Pressed Stearic Acid 0.5%, whiteruss white oil 0.5%), weighting agent (comprising: lime carbonate 22%, talcum powder 4%, thomel 4%, fire retardant 1%), PVC RESINS surplus.
Embodiment 2
The preparation method of the double-deck PVC matrix material of the foregoing description 1 comprises the steps:
After utilizing high-speed mixer to mix respectively the raw material of said upper strata of the formation for preparing and bottom, respectively through the tablets press granulating and forming, and obtain, bottom moulds grain;
Said last, bottom that drying is good are moulded grain is imported twin screw extruder respectively through the vacuum machine first, a second barrel; And be set at 110-130 ℃ to the temperature of first, second barrel, and be first, the second of twin screw extruder host setting 200-240 ℃ simultaneously, start first, second main frame then; Twin screw constantly rotates in first, second barrel to quicken the material fusion plastification; Twin screw is exerted pressure to the plasticizing melt then, and the material entering co-extrusion die head in first, the second barrel is extruded, and gets into the cold formed mould of vacuum water; Obtain double-layer composite material; Send into the power traction machine to the double-layer composite material of the moulding of extruding again, adjust velocity ratio, the size of last shear forming material.
Plastics all can absorb moisture from air, if plastic grain has absorbed too much moisture, will influence the finished product effect, and the shock strength, the tensile strength that occur silver-colored spot, bubble, goods like the surface descend, and therefore before compound extruding, must carry out vacuum-drying.
As the scheme of optimizing; The PET resin on upper strata is mixed with PVC RESINS; Mixing stirring velocity is 1000-1200 rev/min, and temperature adding aluminium silver powder and stirring during to 50-60 ℃ adds softening agent, stablizer, lubricant again, guaranteed the surface smoothness and the brightness of product like this.
The PVC RESINS of bottom and sliding weighting agent are mixed 60-90 ℃, and stirring velocity is 1000-1800 rev/min, and temperature adds softening agent, stablizer, lubricant during to 60-90 ℃ again.
Double-deck PVC matrix material of the present invention just need not spray polishing to its surface; Because its upper strata and bottom all are mechanically resistant materials; Witcizer 300 can be used as primary plasticizer in the bottom, and Triple Pressed Stearic Acid is the effect that prevents the chromatography fouling, and the talcum powder acid resistance is good; The light of the epoxy soybean oil in the upper strata, Heat stability is good have the effect of thermo-stabilizer simultaneously concurrently; UV light absorber thermostability, chemicalstability are good, when forming process, do not influence the processing characteristics of superpolymer; The lubricated efficiency of paraffin white oil is high, Heat stability is good;
Aluminium silver powder is that a kind of tinting material makes the surface increase brightness and color, can add other pigment according to requirement of client, and the grain of moulding that must will cause before compound in process of production the extruding carries out vacuum-drying, and not only brightness is strong to make the product that forms out; Good hardness, but also environmental protection are seen from using; Like the refrigerator door frame is to be main with individual layer PVC material, and now available double-deck PVC matrix material of the present invention replaces, and the cost of individual layer PVC material is 2 times of novel PVC matrix material; Not only cost is low for double-deck PVC matrix material of the present invention, and environmental protection attractive in appearance, good corrosion resistance; Heat-resisting not aging, cure shrinkage is low, and physical strength is high; Electrical insulating property is good, and good flame resistance need not spray and can reach zero and pollute and can manipulation of regeneration.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (9)
1. a double-deck PVC matrix material is characterized in that comprising the upper strata and the bottom of coextrusion mold up and down;
Component that the upper strata comprises and mass percent thereof are: PET resin 13-17%, softening agent 2-4%, aluminium silver powder 4.5-5.5%, stablizer 0.9-1.1%, lubricant 0.3-1.5%, PVC RESINS surplus;
Component that bottom comprises and mass percent thereof are: softening agent 2-4%, stablizer 0.3-1%, lubricant 0.3-1%, weighting agent 25-35%, PVC RESINS surplus.
2. double-deck PVC matrix material according to claim 1, it is characterized in that: said softening agent is: Witcizer 300 or epoxy soybean oil.
3. double-deck PVC matrix material according to claim 2; It is characterized in that: the stablizer in the said upper strata is: one of UV-531 UV light absorber, anti-oxidant DLTP, the stablizer in the said bottom is: one of calcium stearate, UV-531 UV light absorber, anti-oxidant DLTP.
4. double-deck PVC matrix material according to claim 3, it is characterized in that: said lubricant is: one of Triple Pressed Stearic Acid, paraffin white oil.
5. double-deck PVC matrix material according to claim 4 is characterized in that: component that said weighting agent comprises and the mass percent in bottom thereof are: lime carbonate 15-25%, talcum powder 3-6%, thomel 3-6%, fire retardant 0.5-1.5%.
6. an aforesaid right requires the preparation method of 5 described double-deck PVC matrix materials, it is characterized in that comprising the steps:
Utilize high-speed mixer mix to constitute the raw material of said upper strata and bottom respectively, then respectively through the tablets press granulating and forming, and obtain, bottom moulds grain;
Said last, the bottom that drying is good moulded grain respectively through vacuum machine input twin screw extruder coextrusion mold.
7. the preparation method of double-deck PVC matrix material according to claim 6 is characterized in that: the temperature of first, the second barrel of said twin screw extruder is set at 110-130 ℃, and first, the second host setting of twin screw extruder is 200-240 ℃.
8. the preparation method of double-deck PVC matrix material according to claim 7; It is characterized in that: when preparing said upper strata raw material; The mixing stirring velocity of high-speed mixer is controlled to be 1000-1200 rev/min; PET resin and the mixed temperature of PVC RESINS are controlled to 50-60 ℃, add aluminium silver powder then and stir, add softening agent, stablizer and lubricant at last.
9. the preparation method of double-deck PVC matrix material according to claim 8; It is characterized in that: when the said bottom raw material of preparation; The mixing stirring velocity of high-speed mixer is controlled to be 1000-1800 rev/min; Weighting agent and the mixed temperature of PVC RESINS are controlled to 60-90 ℃, add softening agent, stablizer, lubricant then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100141424A CN102604254A (en) | 2012-01-17 | 2012-01-17 | Double-layer PVC (Poly Vinyl Chloride) composite material and preparation method thereof |
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| CN2012100141424A CN102604254A (en) | 2012-01-17 | 2012-01-17 | Double-layer PVC (Poly Vinyl Chloride) composite material and preparation method thereof |
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| CN102604254A true CN102604254A (en) | 2012-07-25 |
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| CN2012100141424A Pending CN102604254A (en) | 2012-01-17 | 2012-01-17 | Double-layer PVC (Poly Vinyl Chloride) composite material and preparation method thereof |
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Cited By (6)
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| CN103044819A (en) * | 2012-12-28 | 2013-04-17 | 云南海珀特科技有限公司 | Rigid plastic keel and manufacturing method thereof |
| CN103362225A (en) * | 2013-07-16 | 2013-10-23 | 安徽国风塑业股份有限公司 | Pre-coating film for thermal insulation of buildings and thermal insulation material coated with pre-coating film |
| CN103542185A (en) * | 2013-10-15 | 2014-01-29 | 江苏常盛管业有限公司 | PVC (polyvinyl chloride) plastic tube long in service life |
| CN103865192A (en) * | 2014-02-18 | 2014-06-18 | 苏州贝斯特装饰新材料有限公司 | Formula of PVC decorative material for high-risk place |
| CN103980673A (en) * | 2014-04-09 | 2014-08-13 | 昆山狼盟精密电子有限公司 | Antioxidant and corrosion-resistant automobile connector insulator and preparation method thereof |
| CN105131456A (en) * | 2015-08-14 | 2015-12-09 | 太仓安托建筑材料有限公司 | PVC composite material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044819A (en) * | 2012-12-28 | 2013-04-17 | 云南海珀特科技有限公司 | Rigid plastic keel and manufacturing method thereof |
| CN103362225A (en) * | 2013-07-16 | 2013-10-23 | 安徽国风塑业股份有限公司 | Pre-coating film for thermal insulation of buildings and thermal insulation material coated with pre-coating film |
| CN103542185A (en) * | 2013-10-15 | 2014-01-29 | 江苏常盛管业有限公司 | PVC (polyvinyl chloride) plastic tube long in service life |
| CN103865192A (en) * | 2014-02-18 | 2014-06-18 | 苏州贝斯特装饰新材料有限公司 | Formula of PVC decorative material for high-risk place |
| CN103980673A (en) * | 2014-04-09 | 2014-08-13 | 昆山狼盟精密电子有限公司 | Antioxidant and corrosion-resistant automobile connector insulator and preparation method thereof |
| CN103980673B (en) * | 2014-04-09 | 2016-06-08 | 苏州功业肆点零智能科技有限公司 | Oxidation and corrosion automotive connector isolator and its preparation method |
| CN105131456A (en) * | 2015-08-14 | 2015-12-09 | 太仓安托建筑材料有限公司 | PVC composite material |
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Application publication date: 20120725 |