CN103128904A - Composite material sanitary appliance formed through two-time injections and preparation method thereof - Google Patents
Composite material sanitary appliance formed through two-time injections and preparation method thereof Download PDFInfo
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- CN103128904A CN103128904A CN2012105885017A CN201210588501A CN103128904A CN 103128904 A CN103128904 A CN 103128904A CN 2012105885017 A CN2012105885017 A CN 2012105885017A CN 201210588501 A CN201210588501 A CN 201210588501A CN 103128904 A CN103128904 A CN 103128904A
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Abstract
The invention discloses a composite material sanitary appliance formed through two-time injections and a preparation method thereof. The method comprises the following steps: (1) a first composite material layer is prepared through a first injection, namely, a first thermoplastic composite material is fused and injected into a first die at a high pressure, so that a first composite material layer is obtained; (2) the first composite material layer is placed in a second die; and (3) a composite material is prepared by a secondary injection, namely, a second thermoplastic composite material is fused, injected at a high pressure, and placed on sanitary appliance to a first composite material layer in the second die, so that the integrated composite material is obtained, wherein the first composite material and the secondary composite material are the same in the thermal coefficient of expansion. The sanitary appliance formed through two-time injections by means of adoption of two thermoplastic composite materials which are different in performance is corrosion resistant, high in glossiness, good in resistance to soiling, scratch resistant, strong in surface hardness and ageing resistant. The product preparation process has no use for high- energy-consumption and long-time firing and is low in carbon, environmentally friendly, free from radiation and heavy metals, high in degree of automation, high in a rate of finished products, and completely suitable for industrial large-scale production.
Description
Technical field
The present invention relates to a kind of composite material sanitary ware, particularly, relate to the products such as sanitary equipment that the thermoplastic composite of two kinds of different performances of a kind of employing is composited by biphasic injection, sanitary ware hardware, outdoor products, outer wall decorating insulation board.
Background technology
The material that Science and engineering is used can not have out of this world performance, and there is the superior point that attracts people's attention in possible some performance, but there is again the defective that is difficult to go beyond in some performance.Be to obtain more perfectly material of performance, multiple raw-material compound be a traditional approach, composite often can obtain by the complementary or synergy to a certain degree of material property certain aspect characteristic of design of material.In recent years increasing various types of materials combination, can give full play to the best application performance of each composition material and application, more attracts people's attention.Quadric injection mould is one of effective technique that realizes combination of materials, and it even can the diverse metal material of conformability, the combination between ceramic material, macromolecular material, and design of material is pushed to a new height.
This composite with different performance is combined into one the technical scheme for preparing the cleaners and polishes product through biphasic injection, have no any domestic and international report.
Summary of the invention
For achieving the above object, the invention provides a kind of preparation method of composite material sanitary ware of double injection molding, the method comprises following concrete steps:
Step 1, a shot prepare the first composite layer: with thermoplastic the first composite melting, high-pressure injection obtains the first composite layer in the first mould;
Step 2 is inserted above-mentioned the first composite layer in the second mould;
Step 3, biphasic injection prepares composite material sanitary ware: with thermoplastic the second composite melting, high-pressure injection is to the first composite layer that is placed in the second mould, form the second composite layer, this second composite layer and the first composite layer are combined into one, and obtain complete composite material sanitary ware;
Wherein, the coefficient of thermal expansion of described the first composite and the second composite is suitable.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, the thickness of described the first composite layer is 1-3mm.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, described the first composite is selected polyphenylene sulfide, the polyphenylene sulfide of modification, Merlon, nylon, and, more than any one in the thermoplas tic resin composite of nonmetallic materials modification.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, described the second composite is the thermoplas tic resin composite through the nonmetallic materials modification.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, described thermoplas tic resin composite through the nonmetallic materials modification is the polypropylene through the mixture modification of calcium carbonate, wollastonite or calcium carbonate and wollastonite.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, described thermoplas tic resin composite through the nonmetallic materials modification comprises:
Filler 50% ~ 70%;
Polipropene 25 % ~ 40%;
Maleic anhydride modified polypropylene 3% ~ 8%;
Antioxidant 1% ~ 2%;
Described filler refers to the mixture of calcium carbonate, wollastonite or calcium carbonate and wollastonite.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, the polyphenylene sulfide of described modification comprises: the inorganic filler of percentage meter 10-30% by weight, and, the polyphenylene sulfide of 70-90%, wherein, more than any one in described inorganic filler selection glass, wollastonite, calcium carbonate and silica.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, in described step 1, the first composite is through granulation, melting, melt temperature is 200-400 ℃, is preferably 350 ℃; High-pressure injection is in the first mould, by the runner cooling forming in the first mould again.
The preparation method of the composite material sanitary ware of above-mentioned double injection molding, wherein, in described step 3, the second composite is through granulation, melting, melt temperature is 200-260 ℃, is preferably 230 ℃; Under high pressure on first composite layer of biphasic injection in the second mould, combination forming, the composite material sanitary ware product of moulding is through the runner cooling forming of the second mould.
The present invention also provides a kind of composite material sanitary ware according to above-mentioned method preparation, and wherein, these sanitary equipment comprise: the first composite is through the first composite layer of melt injection molding, and the second composite is through the second composite layer of melt injection molding; Described the second composite layer injection moulding is combined into one with the first composite layer on the first composite layer;
The coefficient of thermal expansion of described the first composite and the second composite is suitable.
Preparation method of the present invention passes through double injection molding, utilize the thermoplastic of two kinds of different performances, the surface layer of the material of high strength, hardness, high gloss, high resistance to soiling as product, the basic unit of the high material of wollastonite, calcium carbonate content as product, strengthen abundant degree and stone material sense.Reach at present the inaccessiable high-quality high performance index of sanitary equipment of any manufacture of materials.This kind production technology also can utilize two kinds of different materials and double injection molding to make the colored sanitary appliance of surface layer and basic unit's different colours, to reach colourful effect.
The specific embodiment
Concrete technical scheme of the present invention comprises:
Step 1, a shot prepares the first composite layer: the first composite is granulated, the first composite particle is joined in the barrel of injector by the central-feed system, heat and make the composite pellet melting to 300-400 ℃ (preferred 350 ℃), then high-pressure injection in the metal die (the first mould) of product, after cooling forming, is opened mould until product in mould, take out product with manipulator, i.e. the first composite layer;
Step 2 posts the positive diaphragm that adopts of above-mentioned the first composite layer with antisitic defect, then puts into the cover half of another metal die (the second mould), closed die;
Step 3, biphasic injection prepares composite material sanitary ware: the second composite is granulated, with the second composite pellet melting, melt temperature is 200-260 ℃ (being preferably 230 ℃), and this second composite particle is expelled on the first composite layer at the second mould mesohigh, form the second composite layer, this second composite layer and the first composite layer are combined into one, and obtain complete composite material sanitary ware, then cooling products, depanning is taken out the composite material sanitary ware product with manipulator.
Below in conjunction with embodiment, the specific embodiment of the present invention is described further.
The preparation method through the thermoplas tic resin composite of nonmetallic materials modification in embodiment is as follows: take raw material:
Filler 50% ~ 70%;
Polipropene 25 % ~ 40%;
Maleic anhydride modified polypropylene 3% ~ 8%;
Antioxidant 1% ~ 2%;
Described filler refers to the mixture of calcium carbonate, wollastonite or calcium carbonate and wollastonite.
With each raw material abundant mixing and stirring in mixer, mixed raw material is quantitatively joined in the hopper of double screw extruder hot briquetting according to above-mentioned formula ratio by charge door and bypass charge door; Then extrude strip composite after hot briquetting by the extruder die orifice, and described strip composite is placed in tank is down to room temperature; Strip composite after cooling is put into granulator be processed into granular composite particle; Described composite particle is put into the baking oven heating, drying of 100 ℃～120 ℃, removed moisture; Obtain the thermoplas tic resin composite through the nonmetallic materials modification.
Further, in order to make this coefficient of thermal expansion through the thermoplas tic resin composite's of nonmetallic materials modification coefficient of thermal expansion and the first composite as the second composite suitable, can realize that by the granularity of regulating above-mentioned formula ratio and wherein inorganic filler the coefficient of thermal expansion of the second composite is consistent with the first composite, avoiding biphasic injection when combination easily be full of cracks to occur, the problem such as not attractive in appearance.
Further, can be by adding appropriate titanium dioxide, mill base etc. to realize the color diversity of compound artifact in above-mentioned formula.
Embodiment 1
Adopt sanitation-grade PC(Merlon) with the bath water tap internal layer of the mode injection moulding 1-1.5 millimeters thick of high-pressure injection, then the high-voltage secondary injection forms the tap skin through thermoplas tic resin composite's (being derived from Shanghai Xiwang Hi-Tech. Material Co., Ltd.) injection moulding of nonmetallic materials modification, obtains having the tap new product of two kinds of high performance materials combinations.This product inner surface meets the drinking water hygiene requirement, can be applicable to the water purification system; And this product external surfaces scratch hardness reaches 5-6H, and anti-pollution has good dyeing type, and can plating.
Embodiment 2
Adopt special plastic PPS(polyphenylene sulfide) outer with the platform basin with the bathroom of the mode injection moulding 1-1.5 millimeters thick of high-pressure injection, then the high-voltage secondary injection through thermoplas tic resin composite's (being derived from Shanghai Xiwang Hi-Tech. Material Co., Ltd.) injection moulding platform basin internal layer of nonmetallic materials modification, obtains having the platform basin new product of two kinds of high performance material combinations.This product endothecium structure has totally been realized rigidity and the dimensional stability of product, and the surface of platform basin demonstrates the performance that approaches pottery fully, comprises 120 Rockwell hardness, and is high temperature resistant, wear-resistant and heat oxygen aging resistance, as for stain resistance even far above pottery.
Described special plastic PPS(polyphenylene sulfide) available from Dong Li company.
Embodiment 3
Adopting fiber and granule modified special plastic PPS(polyphenylene sulfide) bathroom of injection moulding 1-1.5 millimeters thick is outer with the platform basin, then the high-voltage secondary injection through thermoplas tic resin composite's (being derived from Shanghai Xiwang Hi-Tech. Material Co., Ltd.) injection moulding platform basin internal layer of nonmetallic materials modification, obtains the new product of two kinds of high performance material combinations.Although this series products performance slightly is inferior to embodiment 2, but still almost also all realized the function of embodiment 2 products, manufacturing cost is lower than the former.
Described special plastic PPS(polyphenylene sulfide) available from Dong Li company.Described modification is with special plastic PPS and the inorganic filler melting mixing modification of percentage meter 10-30% by weight of percentage meter 70-90% by weight, more than any one in described inorganic filler selection glass, wollastonite, calcium carbonate and silica.Specifically, modification special plastic PPS joins special plastic PPS in screw extruder, under molten condition, adds inorganic filler, continues heating, and is high mixed, then extrudes through extruder.
Embodiment 4
Select the thermoplas tic resin composite through the nonmetallic materials modification of two kinds of different forming temperatures, control forming temperature, the forming temperature of the second composite of injection is higher than the forming temperature of the first composite of injection for the first time for the second time, with the problem of the welded side seam avoiding occurring.Like this, obtain two kinds of performances near the new product of combination of materials by quadric injection mould.Take bathtub as example, adopt a shot to form the bathtub cylinder body by the first mould, then, through biphasic injection, form complete bathtub by the second mould.This first mould can be simple shape of block, and by different the second mould of design (as the different shaping at cylinder body edge, lace etc.), make the bathtub finished product of making both keep performance and the processing technology of original material, also can have the design of different appearance designs or Local Property, greatly enriched the design of sanitaryware, use simultaneously the combination of mould, decrease the die cost of producing.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. the preparation method of the composite material sanitary ware of a double injection molding, is characterized in that, the method comprises following concrete steps:
Step 1, a shot prepare the first composite layer: with thermoplastic the first composite melting, high-pressure injection obtains the first composite layer in the first mould;
Step 2 is inserted above-mentioned the first composite layer in the second mould;
Step 3, biphasic injection prepares composite material sanitary ware: with thermoplastic the second composite melting, high-pressure injection is to the first composite layer that is placed in the second mould, form the second composite layer, this second composite layer and the first composite layer are combined into one, and obtain complete composite material sanitary ware;
Wherein, the coefficient of thermal expansion of described the first composite and the second composite is suitable.
2. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 1, is characterized in that, the thickness of described the first composite layer is 1-3mm.
3. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 1 or 2, it is characterized in that, described the first composite is selected polyphenylene sulfide, the polyphenylene sulfide of modification, Merlon, nylon, and, more than any one in the thermoplas tic resin composite of nonmetallic materials modification.
4. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 3, is characterized in that, described the second composite is the thermoplas tic resin composite through the nonmetallic materials modification.
5. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 4, it is characterized in that, described thermoplas tic resin composite through the nonmetallic materials modification is the polypropylene through the mixture modification of calcium carbonate, wollastonite or calcium carbonate and wollastonite.
6. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 5, is characterized in that, described thermoplas tic resin composite through the nonmetallic materials modification comprises:
Filler 50% ~ 70%;
Polipropene 25 % ~ 40%;
Maleic anhydride modified polypropylene 3% ~ 8%;
Antioxidant 1% ~ 2%;
Described filler refers to the mixture of calcium carbonate, wollastonite or calcium carbonate and wollastonite.
7. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 6, it is characterized in that, the polyphenylene sulfide of described modification comprises: the inorganic filler of percentage meter 10-30% by weight, and, the polyphenylene sulfide of 70-90%, wherein, more than any one in described inorganic filler selection glass, wollastonite, calcium carbonate and silica.
8. the preparation method of the composite material sanitary ware of double injection molding as claimed in claim 1, is characterized in that, in described step 1, the first composite is through granulation, melting, and melt temperature is 200-400 ℃, high-pressure injection is in the first mould, by the runner cooling forming in the first mould again.
9. as the preparation method of the composite material sanitary ware of claim 1 or 7 described double injection molding, it is characterized in that, in described step 3, the second composite is through granulation, melting, melt temperature is 200-260 ℃, under high pressure on first composite layer of biphasic injection in the second mould, combination forming, the composite material sanitary ware product of moulding is through the runner cooling forming of the second mould.
10. the composite material sanitary ware of a method preparation according to claim 1, is characterized in that, these sanitary equipment comprise: the first composite is through the first composite layer of melt injection molding, and the second composite is through the second composite layer of melt injection molding; Described the second composite layer injection moulding is combined into one with the first composite layer on the first composite layer;
The coefficient of thermal expansion of described the first composite and the second composite is suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210588501.7A CN103128904B (en) | 2012-12-29 | 2012-12-29 | Composite material sanitary ware of a kind of double injection molding and preparation method thereof |
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| CN201210588501.7A CN103128904B (en) | 2012-12-29 | 2012-12-29 | Composite material sanitary ware of a kind of double injection molding and preparation method thereof |
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| CN103128904A true CN103128904A (en) | 2013-06-05 |
| CN103128904B CN103128904B (en) | 2015-12-23 |
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Cited By (4)
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| CN105133865A (en) * | 2015-07-30 | 2015-12-09 | 上海琥达投资发展有限公司 | Thermoplastic non-metal integral bathroom and preparation method for same |
| CN107599295A (en) * | 2017-08-25 | 2018-01-19 | 南通通州湾新材料科技有限公司 | The preparation method and applications of organic-inorganic nano powder complex abrasion-proof shell |
| CN110091463A (en) * | 2018-01-31 | 2019-08-06 | 住友重机械工业株式会社 | Injection moulding method and die device |
| CN111918583A (en) * | 2018-04-16 | 2020-11-10 | 高露洁-棕榄公司 | Oral care implement |
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| CN107599295A (en) * | 2017-08-25 | 2018-01-19 | 南通通州湾新材料科技有限公司 | The preparation method and applications of organic-inorganic nano powder complex abrasion-proof shell |
| CN110091463A (en) * | 2018-01-31 | 2019-08-06 | 住友重机械工业株式会社 | Injection moulding method and die device |
| CN111918583A (en) * | 2018-04-16 | 2020-11-10 | 高露洁-棕榄公司 | Oral care implement |
| US11896117B2 (en) | 2018-04-16 | 2024-02-13 | Colgate-Palmolive Company | Oral care implement |
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