CN103148664A - Plastic product as well as preparation method and refrigeration equipment thereof - Google Patents
Plastic product as well as preparation method and refrigeration equipment thereof Download PDFInfo
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- CN103148664A CN103148664A CN2013100366668A CN201310036666A CN103148664A CN 103148664 A CN103148664 A CN 103148664A CN 2013100366668 A CN2013100366668 A CN 2013100366668A CN 201310036666 A CN201310036666 A CN 201310036666A CN 103148664 A CN103148664 A CN 103148664A
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- 239000004033 plastic Substances 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005057 refrigeration Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 27
- 239000002344 surface layer Substances 0.000 claims abstract description 67
- 238000001125 extrusion Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 30
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 29
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 29
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 20
- 229920002877 acrylic styrene acrylonitrile Polymers 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical compound C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 19
- 230000008569 process Effects 0.000 description 18
- 238000005507 spraying Methods 0.000 description 11
- 238000006748 scratching Methods 0.000 description 7
- 238000012797 qualification Methods 0.000 description 6
- 239000003973 paint Substances 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 4
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- 239000004595 color masterbatch Substances 0.000 description 4
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- 230000000694 effects Effects 0.000 description 3
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic product as well as a preparation method and a piece of refrigeration equipment thereof. The preparation method for the plastic product comprises the following steps that a plastic base stock and a surface layer base stock are molded in a co-extrusion way, so that the plastic base stock forms a body, and the surface layer base stock forms a surface layer, wherein the surfer layer is formed in at least a part of surface of the body. The plastic product is prepared by the method for preparing the plastic product, common formation of the body and the surface layer can be effectively realized, so that the technical problems of inconsistent product appearance, large color difference, low product percent of pass, low surface strength and easiness in scratches in the current preparation technology are solved successfully; and in addition, the preparation process is simple, the production cycle is short and the environment cannot be polluted.
Description
Technical Field
The invention relates to a plastic product, a preparation method thereof and refrigeration equipment.
Background
Currently, plastic articles have been widely used in almost every field. In the prior art, plastic products and preparation methods thereof have many defects, such as different spraying defects, pits and miscellaneous spots on the appearance of the products, thin coatings, the highest surface hardness of only 1HB, easy scratching, dent hitting and paint dropping, low qualification rate during product preparation, long extrusion and paint spraying production line, low speed, low efficiency, easy abrasion of the surface layer, influence on the appearance and the like. In addition, a large amount of organic solvent is volatilized in the spraying process, so that the environment is seriously polluted, the physical health of workers is harmed, and the like.
Therefore, the current plastic products and the preparation methods thereof still need to be improved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, one object of the present invention is to propose a plastic article and a method for the preparation thereof, and another object of the present invention is to propose a refrigeration device comprising the above plastic article.
To achieve the above object, the present invention provides, in one aspect, a plastic article. According to an embodiment of the invention, the plastic article comprises: the plastic film comprises a body and a surface layer, wherein the body is formed by plastic, the surface layer is formed on at least one part of the surface of the body, and the body and the surface layer are formed by co-extrusion. Therefore, the plastic product provided by the embodiment of the invention can be widely applied to multiple fields, such as refrigeration equipment, and has the advantages of consistent appearance, uniform color, high surface strength, wear resistance, scratch resistance, low cost, environmental friendliness and the like. In addition, different appearances and effects can be selected according to product positioning.
According to some embodiments of the invention, the plastic article may further have the following additional features:
according to one embodiment of the invention, the plastic is formed of PVC. Therefore, the PVC material has stable performance, is not easy to deform, and has low price, thereby being beneficial to reducing the production cost.
According to one embodiment of the invention, the thickness of the body is 1.0-3.0 mm. Therefore, the extruded section bar with various appearances for the refrigerator is convenient to process.
According to one embodiment of the invention, the surface layer has a thickness of 0.1 to 0.2 mm. Therefore, the base material is ensured not to expose the bottom, and meanwhile, the cost can be effectively controlled.
According to one embodiment of the invention, the surface layer is formed of PMMA, ASA, PMMA/ABS, PMMA/ASA or ABS. Therefore, the surface layer of the plastic product can be effectively bonded with the base layer in a high-strength manner, and the surface layer has higher hardness and has good anti-cracking and anti-scratching performances. In addition, in the use and turnover processes, the online qualification rate of the product is ensured, and meanwhile, the appearance protection can be carried out without using a protective film.
According to one embodiment of the invention, the plastic product is a column, a device strip, a separation strip, a plastic-steel door window. Therefore, the product range of the plastic product is widened, and the plastic product can be further widely applied to a plurality of fields.
In another aspect of the invention, a method of making a plastic article is provided. According to an embodiment of the invention, the method comprises: co-extruding a plastic base material and a surface layer base material such that a body is formed from the plastic base material and a surface layer is formed from the surface layer base material, wherein the surface layer is formed on a surface of at least a portion of the body. Therefore, when the plastic product is prepared by the method for preparing the plastic product according to the embodiment of the invention, the body and the surface layer can be effectively formed together, thereby successfully solving the technical problems of inconsistent product appearance, large color difference, low product percent of pass, low surface strength and easy scratching in the prior preparation technology. In addition, the preparation process is simple, the production period is short, and spraying is not needed, so that the environment is not polluted, and the health of workers is not harmed.
According to some embodiments of the present invention, the above method for manufacturing a plastic article may further have the following additional technical features:
according to one embodiment of the invention, the plastic base is PVC. Therefore, the PVC material has stable performance, is not easy to deform, and has low price, thereby being beneficial to reducing the production cost.
According to one embodiment of the invention, the surface layer binder is PMMA, ASA, PMMA/ABS, PMMA/ASA or ABS. Therefore, the surface layer of the plastic product can be effectively bonded with the base layer in a high-strength manner, and the surface layer has higher hardness and has good anti-cracking and anti-scratching performances. In addition, in the use and turnover processes, the online qualified rate of products can be ensured, and meanwhile, the appearance protection can be carried out without using a protective film.
According to one embodiment of the invention, the thickness of the body is 1.0-3.0 mm, and the thickness of the surface layer is 0.1-0.2 mm. Therefore, the extruded section bar with various appearances for the refrigerator can be conveniently processed, and the thickness control of the surface layer can effectively control the cost while ensuring that the base material does not expose.
In yet another aspect of the present invention, a refrigeration apparatus is provided. According to an embodiment of the invention, the refrigeration device comprises the door pillar described above. Therefore, the upright post of the refrigeration equipment has the advantages of consistent appearance, uniform color, high surface strength, wear resistance, scratch resistance, low cost, environmental friendliness and the like.
The plastic product and the preparation method thereof according to the embodiment of the invention can realize at least one of the following advantages:
1. according to the plastic product and the preparation method thereof disclosed by the embodiment of the invention, after the same base material is selected on the surface layer of the plastic product, the appearance and the color of the plastic product can be better unified, and the problem of color difference caused by the difference of spraying processes of different manufacturers and different finish paints is solved;
2. according to the plastic product and the preparation method thereof provided by the embodiment of the invention, the surface layer of the plastic product can be used for producing products with different decorative effects such as aluminum matte imitation, silver ash, silver flash, pearl silver, pearl gold, wire drawing silver and the like according to requirements;
3. according to the plastic product and the preparation method thereof, the base layer of the plastic product adopts PVC or modified PVC, and the material cost can be obviously reduced due to the increase of the feed back proportion and the filling of inorganic matters;
4. according to the plastic product and the preparation method thereof disclosed by the embodiment of the invention, the surface layer hardness of the plastic product is higher and can reach 2-3 HB and up to 8HB, and compared with the surface layer hardness of the plastic product in the prior art which is only 1HB, the wear resistance and scratch resistance are obviously improved;
5. according to the plastic product and the preparation method thereof provided by the embodiment of the invention, the spraying-free composite co-extrusion process is adopted in the plastic product preparation method, so that the reject ratio is favorably reduced, and the production efficiency and the qualification rate are improved. In addition, the problems that a large amount of organic solvent is volatilized in the spraying process, the environment is seriously polluted, the health of workers is harmed and the like can be effectively avoided;
6. according to the plastic product and the preparation method thereof provided by the embodiment of the invention, the prepared plastic product can be functionalized more easily according to needs, such as antibiosis, appearance with different colors and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow diagram of a method of making a plastic article according to one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", and the like, which indicate orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
The present invention has been completed based on the following findings of the inventors:
in the prior art, the preparation method of the plastic product generally adopts an extrusion molding and spraying process, and the plastic product and the preparation method thereof have many defects, such as different spraying defects of the product appearance, pits and miscellaneous spots, thin coating, the highest surface hardness of which can only reach HB, easy scratching, dent hitting and paint dropping, low qualification rate during product preparation, long extrusion and paint spraying production line, low speed, low efficiency, easy abrasion of the surface layer, influence on the beauty and the like. In addition, a large amount of organic solvent is volatilized in the spraying process, so that the environment is seriously polluted, the physical health of workers is harmed, and the like. Therefore, there is no plastic product and its preparation method, which can effectively solve the above technical problems. The inventors of the present invention have surprisingly found that the technical problems described above, for example, can be effectively solved by the technical solution of the present invention.
According to the embodiment of the invention, the spraying-free composite co-extrusion process is adopted to co-extrude the plastic base material and the surface layer base material so as to enable the plastic base material to form the body and the surface layer base material to form the surface layer, wherein the surface layer is formed on at least one part of the surface of the body. From this, make the body and the top layer co-molding of plastics on the one hand, be favorable to reducing the defective rate, improve production efficiency and qualification rate, on the other hand is owing to adopt the spraying-free technology, thereby avoided effectively among the prior art in the spraying process have a large amount of organic solvent volatilize, cause the emergence of serious pollution and harm workman healthy scheduling problem to the environment, and simultaneously, the spraying-free composite co-extrusion technology can once only the shaping have the product of specific outward appearance, can reduce secondary operation's process turnover effectively, thereby can shorten process flow and production cycle, and can reduce energy loss and waste.
It should be particularly noted that the discovery of the spray-free composite co-extrusion process is unexpectedly obtained by the inventors of the present invention after a great deal of laborious work. The features and advantages of the solution according to the invention will be further described in the following sections.
In one aspect of the invention, a plastic article is provided. According to an embodiment of the present invention, the material, shape, and structure of the plastic article are not particularly limited. For example, according to some embodiments of the invention, the plastic article includes a body formed of plastic and a surface layer formed on a surface of at least a portion of the body, wherein the body and the surface layer are co-extruded. Therefore, the plastic product has the advantages of consistent appearance, uniform color, wear resistance, scratch resistance, high surface strength, lower cost, environmental protection and the like. In addition, different appearances and effects can be selected according to product positioning.
According to an embodiment of the invention, the plastic is formed of PVC. Therefore, the PVC material has stable performance, is not easy to deform, and has low price, thereby being beneficial to reducing the production cost.
According to an embodiment of the invention, the surface layer is formed of PMMA, ASA, PMMA/ABS, PMMA/ASA or ABS. Therefore, the surface layer of the plastic product can be effectively bonded with the base layer in a high-strength manner, and the surface layer has higher hardness and has good anti-cracking and anti-scratching performances. In addition, in the use and turnover processes, the online qualified rate of products can be ensured, and meanwhile, the appearance protection can be carried out without using a protective film.
According to the embodiment of the invention, the thickness of the body is 1.0-3.0 mm, and the thickness of the surface layer is 0.1-0.2 mm. Therefore, the extruded section bar with various appearances for the refrigerator can be conveniently processed, and the thickness control of the surface layer can effectively control the cost while ensuring that the base material does not expose.
According to one embodiment of the invention, the plastic product is a pillar, a device strip, a spacer strip, a plastic-steel door window. Therefore, the product range of the plastic product is widened, and the plastic product can be further widely applied to a plurality of fields.
In another aspect of the invention, a method of making a plastic article is provided. According to the embodiment of the invention, the spraying-free composite co-extrusion process is adopted to prepare the plastic product. Therefore, the plastic product has the advantages of consistent appearance, uniform color difference, high product qualification rate, high surface strength, wear resistance, scratch resistance and the like. In addition, the preparation process is simple, the production period is short, and no pollution is caused to the environment.
According to an embodiment of the present invention, the material, shape, and structure of the plastic article are not particularly limited. For example, according to some embodiments of the invention, the plastic base is PVC. Therefore, the PVC material has stable performance, is not easy to deform, and has low price, thereby being beneficial to reducing the production cost.
According to a particular embodiment of the invention, the surface layer binder is PMMA, ASA, PMMA/ABS, PMMA/ASA or ABS. Therefore, the surface layer of the plastic product can be effectively bonded with the base layer in a high-strength manner, and the surface layer has higher hardness and has good anti-cracking and anti-scratching performances. In addition, in the use and turnover processes, the online qualified rate of products can be ensured, and meanwhile, the appearance protection can be carried out without using a protective film.
According to the specific embodiment of the invention, the thickness of the body is 1.0-3.0 mm, and the thickness of the surface layer is 0.1-0.2 mm. Therefore, the extruded section bar with various appearances for the refrigerator can be conveniently processed, and the thickness control of the surface layer can effectively control the cost while ensuring that the base material does not expose.
In yet another aspect of the present invention, a refrigeration apparatus is provided. According to an embodiment of the invention, the refrigeration device comprises the door pillar described above. Therefore, the upright post of the refrigeration equipment has the advantages of consistent appearance, uniform color, wear resistance, scratch resistance, high surface strength, lower cost, environmental protection and the like. The characteristics and advantages of the plastic article and the method for manufacturing the same have been described in detail above, and are certainly applicable to the refrigeration device, and will not be described in detail herein. In addition, as for other components of the refrigeration equipment, any known components in the refrigeration equipment field can be adopted, and the details are not repeated.
The present invention is illustrated by the following specific examples, which are intended to be illustrative only and should not be construed as limiting the invention in any way. In addition, in the following examples, if not specifically mentioned, all the equipment and materials used are commercially available.
The general method comprises the following steps:
a method of making a plastic article is described below with reference to figure 1:
raw materials: PVC, PMMA, ASA, PMMA/ABS, PMMA/ASA or ABS.
Equipment: twin screw extruders, single screw extruders.
The product is as follows: upright posts, device strips, isolating strips, plastic-steel doors and windows and the like.
In the following examples, the main steps of the process for the preparation of plastic articles are as follows:
1) adjusting extrusion equipment, and adjusting component materials in proportion;
2) fully drying the surface layer material at a high temperature of about 85 ℃, and then processing the surface layer material into decorative strips with uniform length in a co-extrusion mode;
3) and (3) cutting, punching and other treatments are carried out on the co-extrusion processing decorative strip according to requirements to prepare the product.
Example 1:
the composite co-extrusion refrigerator or freezer door upright column (door frame) is 2mm in thickness, the surface layer is made of PMMA, ABS and color master batch, and the composite co-extrusion refrigerator or freezer door upright column is mixed and then dyed on line, and the thickness is 0.18 mm. The base layer is made of modified hard PVC, the thickness of the base layer is 1.82mm, and the base layer is co-extruded into a door upright post (door frame).
Example 2:
the composite co-extrusion refrigerator or freezer door upright column (door frame) is 2.2mm in thickness, the surface layer is PMMA and color mother particles, and the composite co-extrusion refrigerator or freezer door upright column is mixed and then dyed on line, and the thickness is 0.20 mm. The base layer is made of modified hard PVC with the thickness of 2.00mm, and is co-extruded into a door upright post (door frame).
Example 3:
the composite co-extrusion refrigerator or freezer door upright post (door frame) is 3.0mm in thickness, the surface layer is ASA and color masterbatch, and the mixture is dyed on line, and the thickness is 0.25 mm. The base layer is made of modified hard PVC with the thickness of 2.75mm, and is co-extruded into a door upright post (door frame).
Example 4:
the composite co-extrusion refrigerator or freezer door post (door frame) is 2.2mm in thickness, the surface layer is ABS and color master batch, and the post and the color master batch are mixed and then dyed on line, and the thickness is 0.20 mm. The base layer is made of modified hard PVC with the thickness of 2.00mm, and is co-extruded into a door upright post (door frame).
Example 5:
the composite co-extrusion refrigerator or freezer door upright column (door frame) is 2mm in thickness, the surface layer is dyed and granulated PMMA/ABS, and the thickness is 0.20 mm. The base layer is made of modified hard PVC with the thickness of 1.80mm, and is co-extruded into a door upright post (door frame).
Example 6:
the composite co-extrusion refrigerator or freezer door upright column (door frame) is 2mm in thickness, the surface layer is dyed and granulated PMMA, and the thickness is 0.18 mm. The base layer is made of modified hard PVC, the thickness of the base layer is 1.82mm, and the base layer is co-extruded into a door upright post (door frame).
Example 7:
the composite co-extrusion refrigerator or freezer door upright post (door frame) is 2.2mm in thickness, the surface layer is dyed granulation ASA, and the thickness is 0.20 mm. The base layer is made of modified hard PVC with the thickness of 2.00mm, and is co-extruded into a door upright post (door frame).
Example 8:
the composite co-extrusion refrigerator or freezer door upright post (door frame) is 2.5mm in thickness, the surface layer is dyed and granulated ABS, and the thickness is 0.20 mm. The base layer is made of modified hard PVC with the thickness of 2.3mm, and is co-extruded into a door upright post (door frame).
Example 9:
the composite co-extrusion decorative strip is 1.5mm in thickness, the surface layer is dyed and granulated PMMA/ABS, and the thickness is 0.15 mm. The base layer is made of modified hard PVC with the thickness of 1.35mm, and is processed into the glass partition plate decorative strip by co-extrusion.
Example 10:
the composite co-extrusion decorative strip is 1.5mm in thickness, the surface layer is dyed and granulated PMMA, and the thickness is 0.15 mm. The base layer is made of modified hard PVC with the thickness of 1.35mm, and is processed into the glass partition plate decorative strip by co-extrusion.
Example 11:
the composite co-extrusion vertical air-conditioning door post is 2.5mm in thickness, the surface layer is dyed and granulated PMMA/ABS, and the thickness is 0.25 mm. The base layer is made of modified hard PVC with the thickness of 2.25mm, and is co-extruded into the vertical air-conditioning door post.
Example 12:
the composite co-extrusion vertical air-conditioning door post is 2.5mm in thickness, the surface layer is dyed and granulated PMMA, and the thickness is 0.22 mm. The base layer is made of modified hard PVC with the thickness of 2.28mm, and is co-extruded into the vertical air-conditioning door post.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, all of which fall within the scope of the appended claims.
Claims (11)
1. A plastic article, comprising:
a body formed of plastic;
a surface layer formed on a surface of at least a portion of the body,
wherein,
the body and the surface layer are formed by co-extrusion.
2. A plastic article according to claim 1, wherein the plastic is formed of PVC.
3. A plastic article according to claim 1, wherein the thickness of the body is 1.0-3.0 mm.
4. A plastic article according to claim 1, wherein the surface layer has a thickness of 0.1 to 0.2 mm.
5. A plastic article according to claim 1, characterized in that the surface layer is formed of PMMA, ASA, PMMA/ABS, PMMA/ASA or ABS.
6. The plastic product of claim 1, wherein the plastic product is a pillar, a device strip, a spacer strip, a plastic-steel door window.
7. A method of making a plastic article, comprising:
co-extruding a plastic base material and a surface layer base material so that a body is formed from the plastic base material and a surface layer is formed from the surface layer base material,
wherein,
the surface layer is formed on a surface of at least a portion of the body.
8. The method of claim 7, wherein the plastic base is PVC.
9. The method of claim 7, wherein the surface layer binder is PMMA, ASA, PMMA/ABS, PMMA/ASA, or ABS.
10. The method as claimed in claim 7, wherein the body has a thickness of 1.0 to 3.0mm and the surface layer has a thickness of 0.1 to 0.2 mm.
11. A refrigeration device comprising the door pillar according to any one of claims 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009365A (en) * | 2016-05-23 | 2016-10-12 | 中山市百事顺业塑料电器有限公司 | Colorful crystal frame strip |
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| CN103148664B (en) | 2015-06-17 |
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