CN102294866A - Microcellular foamed PVC co-extrusion faux wood grains section for outdoor decorating and preparing method thereof - Google Patents
Microcellular foamed PVC co-extrusion faux wood grains section for outdoor decorating and preparing method thereof Download PDFInfo
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Abstract
The invention relates to a microcellular foamed PVC co-extrusion faux wood grains section for outdoor decorating and a preparing method thereof. The section comprises a base material and a surface layer for coating the base material, wherein, the base material comprises PVC resin, light calcium carbonate, organo tin stabilizing agent, titanium dioxide, polyethylene wax, eleaostearic acid and uvioresistant agent, and the surface layer comprises PVC resin, organo tin stabilizing agent, titanium dioxide, polyethylene wax, eleaostearic acid, toner, light calcium carbonate and foaming dispersant. The preparation method comprises the following steps: (a) preparing the base stock of the base material; (b) preparing the materials of the surface layer; (c) moulding the base material; and (d) carrying out extrusion with a co-extruder. The prepared section has similar appearance with timber, simultaneously, according to the invention, the environmental pollution caused by disposing wastes randomly is avoided, the production cost is reduced, the raw materials are easy to obtain, and scrapped materials in the moulding process can be recycled.
Description
Technical field
The present invention relates to a kind of little foaming PVC co-extrusion wood-like exterior decoration section bar and preparation method thereof.
Background technology
Outdoor furniture is meant the furniture that uses in outdoor or half exterior space, main type is a table and chair furniture, is adapted to places such as park, roadside, square, balcony, bathing beach and swimming pool.Outdoor furniture should possess good weather ability of resisting and absolute water resistance, and the timber of the most of employing of outdoor furniture is at present built and formed, and dull need of its surface color handled through secondary operations such as printing, spraying, overlay films.Makes outdoor furniture section steel with timber and have light weight, series of advantages such as attractive in appearance, but China is the relatively deficienter countries of a forest reserves that a large amount of disafforestation meetings jeopardizes descendants's long-term interest in thousand generations, is that China's law is prohibited.And timber in use easily absorbs water and rots, and can be when indoor use because of the inflammable a series of hidden danger such as fire that cause, therefore before using, must handle it, as making anticorrosion wood through special process at wood surface coating underwater paint or adding preservative agent, but the latter is unallowed from environmental angle, because contain a large amount of harmful material-formaldehyde in the industrial preservative, and secondary operations is handled the waste great amount of manpower and material resources, has increased its manufacturing cost.
People progressively turn to plastics and wood the timber substitution material such as to mould and make outdoor furniture, and still, also there are many deficiencies in existing plastics and wood plastic composite technology of preparing, and for example: outward appearance art texture is poor, and imitative wood effect is not good; Cost is higher, promotes the use of thereby influenced.
Chinese patent application 200610052988.1 discloses a kind of outward appearance like wooden wood plastic composite and preparation method thereof.Mechanical means is adopted in this invention, the wood plastic composite surface finish is fallen or brush skim, forms the vertical lines that is similar to mutually rough plank surface, obtains a kind of outward appearance like wooden wood plastic composite.
Summary of the invention
Purpose of the present invention be exactly in order to overcome deficiency such as the imitative wood effect of existing plastics and wood plastic composite is poor, manufacturing process complexity and provide that a kind of imitative wood effect is good, the simple little foaming PVC co-extrusion wood-like exterior decoration section bar of manufacturing process and preparation method thereof.
The invention provides a kind of little foaming PVC co-extrusion wood-like exterior decoration section bar, form by the surface layer of base material and parcel base material, wherein,
(a) base material is formed by the feedstock production of following parts by weight:
Polyvinyl chloride resin: 75 parts,
Precipitated calcium carbonate: 16～30 parts,
Organic tin stabilizer: 1.0～2.5 parts,
Titanium dioxide: 3～5 parts,
Tissuemat E: 0.1～0.3 part,
Stearic acid: 0.2～0.4 part,
UV resistant agent: 1.0～1.5 parts;
(b) surface layer is formed by the feedstock production of following parts by weight:
Polyvinyl chloride resin: 75 parts,
Organic tin stabilizer: 1.5～2.1 parts,
Titanium dioxide: 3～5 parts,
Tissuemat E: 0.2～0.4 part,
Stearic acid: 0.2～0.4 part,
Toner: 0.8～1.5 part,
Precipitated calcium carbonate: 8～12 parts,
Foaming dispersant: 5～8 parts.
Preferably, described polyvinyl chloride resin is SG-8 or S-800.
Preferably, the thickness of described surface layer is 0.1～0.6mm.
Preferably, the vector resin of described toner is SG-8.
Preferably, the pigment of described toner is iron pigment.
The invention still further relates to a kind of preparation method of aforementioned little foaming PVC co-extrusion wood-like exterior decoration section bar, comprise the following steps:
(a) base-material of preparation base material: get polyvinyl chloride resin, join height and stir in the machine and stir, add organic tin stabilizer when temperature of charge rises to 70 ℃, high-speed stirred adds other auxiliary agents when temperature is 120～140 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets base-material;
(b) lining of preparation surface layer: get polyvinyl chloride resin, join height and stir in the machine and stir, add organic tin stabilizer and foaming dispersant when temperature of charge rises to 70 ℃, high-speed stirred adds toner and other auxiliary agents when temperature is 120 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets lining;
(c) substrate forming: base-material is extruded with single pole extruder or conical double screw extruder, got the moulding base material;
(d) co-extrusion machine is extruded: use single screw extrusion machine at the little foaming PVC lining of substrate surface co-extrusion one deck lining, obtain little foaming PVC co-extrusion wood-like exterior decoration section bar.
Preferably, the technological parameter that step c relates to is as follows: engine speed: 25～35rpm, feeding rotating speed: 8～12rpm, melt pressure: 36～42MPa, machine barrel 1 district: 160～170 ℃, machine barrel 2 districts: 170～180 ℃, machine barrel 3 districts: 165～175 ℃, machine barrel 4 districts: 135～145 ℃, merging core: 165～170 ℃, mould district: 190～210 ℃.
Preferably, the technological parameter that steps d relates to is as follows: engine speed: 15～25 rpm, and machine barrel 1 district: 130～140 ℃, machine barrel 2 districts: 145～155 ℃, machine barrel 3 districts: 155～165 ℃, machine barrel 4 districts: 170～185 ℃.
Preferably, the single screw extrusion machine module in the steps d is made up of two forming blocks, and the forming blocks size of close extruder die head is than second little 0.3～0.4mm of size, and the interface of two forming blocks is imports of co-extrusion surface layer runner.
Preparation method's disclosed in this invention principle is: utilize the different polyvinyl chloride resin of molecular weight, make toner and base-material respectively, toner mobile relatively poor, the flowability of base-material is better relatively, under this species diversity effect, form wood grain when material is extruded, obtained the effect of good imitative original real wood; And need not as Chinese patent application mechanical means that 2006l0052988.1 adopts, reduce processing step, saved manpower and materials.
Compared with prior art, beneficial effect of the present invention is as follows:
1, described foaming PVC co-extrusion wood-like exterior decoration section material appearance exactly likes timber, can be used as the substitute of timber under various conditions, wherein be particularly suitable for as the alternative ornamental timber of outdoor garden landscape, as can be used as outdoor floor, fence, handrail, flower case, dustbin, wayside pavilion, log cabin, balcony, stair etc.;
2, described foaming PVC co-extrusion wood-like exterior decoration section bar, its core technology is a foaming PVC coextrusion mold process technology; Its base material raw material can be polyvinyl chloride resin (SG-8 or S-800), it also can be the reclaimed materials of hard PVC waste product, to the recycling again of hard PVC waste product, both avoid arbitrarily abandoning of discarded object and caused environmental pollution, reduced the production cost of outdoor furniture section steel again;
3, described foaming PVC co-extrusion wood-like exterior decoration section bar environmental protection, nontoxic, surface do not need after-treatment, and manufacturing process is simple, raw material be easy to get and forming process in produce scrap material and can recycle again, meet the environmental protection circulation industry development policy of country.
Description of drawings
Fig. 1 when the substrate forming its materials flow move towards schematic diagram;
Its materials flow moved towards schematic diagram when extruded for co-extrusion machine Fig. 2～7;
Fig. 8 is the schematic diagram of foaming PVC co-extrusion wood-like exterior decoration section bar.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Ratio and percentage are based on weight, unless stated otherwise.
Present embodiment provides a kind of little foaming PVC co-extrusion wood-like exterior decoration section bar and preparation method thereof.
This section bar is made up of the surface layer of base material and parcel base material, wherein,
(a) base material is formed by the feedstock production of following parts by weight:
The SG-8 resin: 75 parts,
Precipitated calcium carbonate: 16 parts,
Organic tin stabilizer: 1 part,
Titanium dioxide: 3～5 parts,
Tissuemat E: 0.1 part,
Stearic acid: 0.2 part,
UV resistant agent: 1.0 parts;
(b) surface layer is formed by the feedstock production of following parts by weight:
The SG-8 resin: 75 parts,
Organic tin stabilizer: 1.5 parts,
Titanium dioxide: 5 parts,
Tissuemat E: 0.2 part,
Stearic acid: 0.2 part,
Toner: 0.8 part,
Precipitated calcium carbonate: 8 parts,
Foaming dispersant: 5 parts.
The preparation method of described section bar comprises the steps:
(a) base-material of preparation base material: get the SG-8 resin, join height and stir (the temperature arrising caused by friction between dependence material and paddle, the pot wall of stirring in the machine, stirring blade divides two-layer up and down), when rising to 70 ℃, temperature of charge adds organic tin stabilizer, high-speed stirred adds other auxiliary agents when temperature is 120～140 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets base-material;
(b) lining of preparation surface layer: get the SG-8 resin, join height and stir in the machine and stir, add organic tin stabilizer and foaming dispersant when temperature of charge rises to 70 ℃, high-speed stirred adds toner and other auxiliary agents when temperature is 120 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets lining;
(c) substrate forming: base-material is extruded with single pole extruder or conical double screw extruder, got the moulding base material;
Fig. 1 when the substrate forming its materials flow move towards schematic diagram; As depicted in figs. 1 and 2, mixed base-material is entered the mouth 1 to entering the conical double screw extruder extrusion molding from bed material runner inlet 2 by runner, its materials flow trend is seen Fig. 1, in the present embodiment, the technical parameter of main frame: screw diameter: 65/132, screw rod effective length: 1440mm, engine speed: 25～30rpm, feeding rotating speed: 8～10rpm, melt pressure: 36～40MPa, machine barrel 1 district: 160～165 ℃, machine barrel 2 districts: 170～175 ℃, machine barrel 3 districts: 165～170 ℃, machine barrel 4 districts: 135～140 ℃, merging core: 165～168 ℃, mould district: 190～200 ℃;
(d) co-extrusion machine is extruded: use single screw extrusion machine at the little foaming PVC lining of substrate surface co-extrusion one deck lining, obtain little foaming PVC co-extrusion wood-like exterior decoration section bar;
Use single screw extrusion machine at the little foaming PVC lining of substrate surface co-extrusion one deck 0.1～0.6mm mixed lining, the runner trend of co-extrusion lining is seen Fig. 1,3,4,5,6,7, lining is by runner inlet 1 to first co-extrusion surface layer runner 1-1, the second co-extrusion surface layer runner 1-2, single screw extrusion machine module shown in Figure 7 is made up of two forming blocks, the forming blocks size of close extruder die head is than second little 0.3mm of size, the interface of two modules is imports of co-extrusion surface layer runner, co-extrusion lining seam thus goes out to enter co-extrusion surface layer runner, at column surface co-extrusion one deck 0.1～0.6mm foaming PVC lining: wherein, engine speed: 15～20rpm, machine barrel 1 district: 130～135 ℃, machine barrel 2 districts: 145～150 ℃, machine barrel 3 districts: 155～160 ℃, machine barrel 4 districts: 170～180 ℃.Screw diameter is 45, screw slenderness ratio: 22～25:1.
Present embodiment provides a kind of little foaming PVC co-extrusion wood-like exterior decoration section bar and preparation method thereof.
This section bar is made up of the surface layer of base material and parcel base material, wherein,
(a) base material is formed by the feedstock production of following parts by weight:
The S-800 resin: 75 parts,
Precipitated calcium carbonate: 23 parts,
Organic tin stabilizer: 1.8 parts,
Titanium dioxide: 4 parts,
Tissuemat E: 0.2 part,
Stearic acid: 0.3 part,
UV resistant agent: 1.2 parts;
(b) surface layer is formed by the feedstock production of following parts by weight:
The S-800 resin: 75 parts,
Organic tin stabilizer: 1.8 parts,
Titanium dioxide: 4 parts,
Tissuemat E: 0.3 part,
Stearic acid: 0.3 part,
Toner: 1.2 parts,
Precipitated calcium carbonate: 10 parts,
Foaming dispersant: 6.5 parts.
The preparation method of described section bar comprises the steps:
(a) base-material of preparation base material: get the SG-8 resin, join height and stir (the temperature arrising caused by friction between dependence material and paddle, the pot wall of stirring in the machine, stirring blade divides two-layer up and down), when rising to 70 ℃, temperature of charge adds organic tin stabilizer, high-speed stirred adds other auxiliary agents when temperature is 120～140 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets base-material;
(b) lining of preparation surface layer: get the SG-8 resin, join height and stir in the machine and stir, add organic tin stabilizer and foaming dispersant when temperature of charge rises to 70 ℃, high-speed stirred adds toner and other auxiliary agents when temperature is 120 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets lining;
(c) substrate forming: base-material is extruded with single pole extruder or conical double screw extruder, got the moulding base material;
Wherein, engine speed: 30～35rpm, feeding rotating speed: 10～12rpm, melt pressure: 40～42MPa, machine barrel 1 district: 165～170 ℃, machine barrel 2 districts: 175～180 ℃, machine barrel 3 districts: 170～175 ℃, machine barrel 4 districts: 140～145 ℃, merging core: 168～170 ℃, mould district: 200～210 ℃;
(d) co-extrusion machine is extruded: use single screw extrusion machine at the little foaming PVC lining of substrate surface co-extrusion one deck lining, obtain little foaming PVC co-extrusion wood-like exterior decoration section bar;
Wherein, engine speed: 20～25rpm, machine barrel 1 district: 135～140 ℃, machine barrel 2 districts: 150～155 ℃, machine barrel 3 districts: 160～165 ℃, machine barrel 4 districts: 180～185 ℃; The single screw extrusion machine module is made up of two forming blocks, and the forming blocks size of close extruder die head is than second little 0.4mm of size, and the interface of two forming blocks is imports of co-extrusion surface layer runner.
Present embodiment provides a kind of little foaming PVC co-extrusion wood-like exterior decoration section bar and preparation method thereof.
This section bar is made up of the surface layer of base material and parcel base material, wherein,
(a) base material is formed by the feedstock production of following parts by weight:
The SG-8 resin: 75 parts,
Precipitated calcium carbonate: 30 parts,
Organic tin stabilizer: 2.5 parts,
Titanium dioxide: 5 parts,
Tissuemat E: 0.3 part,
Stearic acid: 0.4 part,
UV resistant agent: 1.5 parts;
(b) surface layer is formed by the feedstock production of following parts by weight:
The S-800 resin: 75 parts,
Organic tin stabilizer: 2.1 parts,
Titanium dioxide: 5 parts,
Tissuemat E: 0.4 part,
Stearic acid: 0.4 part,
Toner: 1.5 parts,
Precipitated calcium carbonate: 12 parts,
Foaming dispersant: 8 parts.
The vector resin of described toner is SG-8, and the pigment of described toner is iron pigment.
The preparation method of described section bar comprises the steps:
(a) base-material of preparation base material: get the SG-8 resin, join height and stir (the temperature arrising caused by friction between dependence material and paddle, the pot wall of stirring in the machine, stirring blade divides two-layer up and down), when rising to 70 ℃, temperature of charge adds organic tin stabilizer, high-speed stirred adds other auxiliary agents when temperature is 120～140 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets base-material;
(b) lining of preparation surface layer: get the SG-8 resin, join height and stir in the machine and stir, add organic tin stabilizer and foaming dispersant when temperature of charge rises to 70 ℃, high-speed stirred adds toner and other auxiliary agents when temperature is 120 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets lining;
(c) substrate forming: base-material is extruded with single pole extruder or conical double screw extruder, got the moulding base material;
Wherein, engine speed: 30～35rpm, feeding rotating speed: 10～12rpm, melt pressure: 40～42MPa, machine barrel 1 district: 165～170 ℃, machine barrel 2 districts: 175～180 ℃, machine barrel 3 districts: 170～175 ℃, machine barrel 4 districts: 140～145 ℃, merging core: 168～170 ℃, mould district: 200～210 ℃;
(d) co-extrusion machine is extruded: use single screw extrusion machine at the little foaming PVC lining of substrate surface co-extrusion one deck lining, obtain little foaming PVC co-extrusion wood-like exterior decoration section bar;
Wherein, engine speed: 20～25rpm, machine barrel 1 district: 135～140 ℃, machine barrel 2 districts: 150～155 ℃, machine barrel 3 districts: 160～165 ℃, machine barrel 4 districts: 180～185 ℃; The single screw extrusion machine module is made up of two forming blocks, and the forming blocks size of close extruder die head is than second little 0.4mm of size, and the interface of two forming blocks is imports of co-extrusion surface layer runner.
Fig. 8 is the schematic diagram of little foaming PVC co-extrusion wood-like exterior decoration section bar of above embodiment preparation, and section bar comprises little foaming PVC surface layer 3 and base material 4.The foaming PVC co-extrusion wood-like exterior decoration section material appearance of above embodiment preparation exactly likes timber, can be used as the substitute of timber under various conditions, wherein be particularly suitable for as the alternative ornamental timber of outdoor garden landscape, as can be used as outdoor floor, fence, handrail, flower case, dustbin, wayside pavilion, log cabin, balcony, stair etc.; Simultaneously, preparation method of the present invention is to the recycling again of hard PVC waste product, both avoided arbitrarily abandoning of discarded object and causes environmental pollution, reduced the production cost of outdoor furniture section steel again; The foaming PVC co-extrusion wood-like exterior decoration section bar environmental protection of above embodiment preparation, nontoxic, surface do not need after-treatment, manufacturing process is simple, raw material be easy to get and forming process in produce scrap material and can recycle again, meet the environmental protection circulation industry development policy of country.
Scope of the present invention is not subjected to the restriction of described specific embodiments, and described embodiment is only desired also to comprise the method and the component of functional equivalent in the scope of the invention as the single example of illustrating various aspects of the present invention.In fact, except content as herein described, those skilled in the art can easily grasp multiple improvement of the present invention with reference to above description and accompanying drawing.Described improvement also falls within the scope of appended claims.Every piece of list of references mentioned above is listed this paper in as a reference all in full.
Claims (9)
1. a little foaming PVC co-extrusion wood-like exterior decoration section bar is made up of the surface layer of base material and parcel base material, it is characterized in that,
(a) base material is formed by the feedstock production of following parts by weight:
Polyvinyl chloride resin: 75 parts,
Precipitated calcium carbonate: 16～30 parts,
Organic tin stabilizer: 1.0～2.5 parts,
Titanium dioxide: 3～5 parts,
Tissuemat E: 0.1～0.3 part,
Stearic acid: 0.2～0.4 part,
UV resistant agent: 1.0～1.5 parts;
(b) surface layer is formed by the feedstock production of following parts by weight:
Polyvinyl chloride resin: 75 parts,
Organic tin stabilizer: 1.5～2.1 parts,
Titanium dioxide: 3～5 parts,
Tissuemat E: 0.2～0.4 part,
Stearic acid: 0.2～0.4 part,
Toner: 0.8～1.5 part,
Precipitated calcium carbonate: 8～12 parts,
Foaming dispersant: 5～8 parts.
2. little foaming PVC co-extrusion wood-like exterior decoration section bar according to claim 1 is characterized in that described polyvinyl chloride resin is SG-8 or S-800.
3. little foaming PVC co-extrusion wood-like exterior decoration section bar according to claim 1 is characterized in that the thickness of described surface layer is 0.1～0.6mm.
4. little foaming PVC co-extrusion wood-like exterior decoration section bar according to claim 1 is characterized in that the vector resin of described toner is SG-8.
5. little foaming PVC co-extrusion wood-like exterior decoration section bar according to claim 1 is characterized in that the pigment of described toner is iron pigment.
6. one kind as require the preparation method of 1 described little foaming PVC co-extrusion wood-like exterior decoration section bar, it is characterized in that, comprise the following steps:
(a) base-material of preparation base material: get polyvinyl chloride resin, join height and stir in the machine and stir, add organic tin stabilizer when temperature of charge rises to 70 ℃, high-speed stirred adds other auxiliary agents when temperature is 120～140 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets base-material;
(b) lining of preparation surface layer: get polyvinyl chloride resin, join height and stir in the machine and stir, add organic tin stabilizer and foaming dispersant when temperature of charge rises to 70 ℃, high-speed stirred adds toner and other auxiliary agents when temperature is 120 ℃, stir, and blanking is cold to be mixed to 50 ℃ of blowings, hermetically storing gets lining;
(c) substrate forming: base-material is extruded with single pole extruder or conical double screw extruder, got the moulding base material;
(d) co-extrusion machine is extruded: use single screw extrusion machine at the little foaming PVC lining of substrate surface co-extrusion one deck lining, obtain little foaming PVC co-extrusion wood-like exterior decoration section bar.
7. preparation method according to claim 6, it is characterized in that, the technological parameter that step c relates to is as follows: engine speed: 25～35rpm, feeding rotating speed: 8～12rpm, melt pressure: 36～42MPa, machine barrel 1 district: 160～170 ℃, machine barrel 2 districts: 170～180 ℃, machine barrel 3 districts: 165～175 ℃, machine barrel 4 districts: 135～145 ℃, merging core: 165～170 ℃, mould district: 190～210 ℃.
8. preparation method according to claim 6 is characterized in that, the technological parameter that steps d relates to is as follows: engine speed: 15～25 rpm, machine barrel 1 district: 130～140 ℃, machine barrel 2 districts: 145～155 ℃, machine barrel 3 districts: 155～165 ℃, machine barrel 4 districts: 170～185 ℃.
9. preparation method according to claim 6, it is characterized in that, single screw extrusion machine module in the steps d is made up of two forming blocks, and the forming blocks size of close extruder die head is than second little 0.3～0.4mm of size, and the interface of two forming blocks is imports of co-extrusion surface layer runner.
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| CN103289235A (en) * | 2013-06-08 | 2013-09-11 | 广东华声电器股份有限公司 | PVC (polyvinyl chloride) colorful coextruded material and application thereof |
| CN103286849A (en) * | 2012-02-22 | 2013-09-11 | 北京仁创科技集团有限公司 | Method for preparing composite water permeable brick |
| WO2016082066A1 (en) * | 2014-11-24 | 2016-06-02 | 泰州市华丽塑料有限公司 | High-abrasion-resistance sound insulation wood-plastic decorative sheet and continuous manufacturing method therefor |
| CN106184966A (en) * | 2016-07-07 | 2016-12-07 | 安徽国风木塑科技有限公司 | A kind of combined box |
| CN106184970A (en) * | 2016-07-07 | 2016-12-07 | 安徽国风木塑科技有限公司 | Casing moulded by the wood of a kind of many combining forms |
| CN110406222A (en) * | 2019-07-05 | 2019-11-05 | 浙江中财型材有限责任公司 | A kind of weather-proof colored box material of foaming PVC co-extrusion and preparation method thereof |
| CN111251680A (en) * | 2019-12-09 | 2020-06-09 | 河北环港新材料股份有限公司 | PVC composite board and production process thereof |
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| CN103286849A (en) * | 2012-02-22 | 2013-09-11 | 北京仁创科技集团有限公司 | Method for preparing composite water permeable brick |
| CN103286849B (en) * | 2012-02-22 | 2016-06-08 | 北京仁创科技集团有限公司 | A kind of method of preparing composite water permeable brick |
| CN103289235A (en) * | 2013-06-08 | 2013-09-11 | 广东华声电器股份有限公司 | PVC (polyvinyl chloride) colorful coextruded material and application thereof |
| WO2016082066A1 (en) * | 2014-11-24 | 2016-06-02 | 泰州市华丽塑料有限公司 | High-abrasion-resistance sound insulation wood-plastic decorative sheet and continuous manufacturing method therefor |
| CN106184966A (en) * | 2016-07-07 | 2016-12-07 | 安徽国风木塑科技有限公司 | A kind of combined box |
| CN106184970A (en) * | 2016-07-07 | 2016-12-07 | 安徽国风木塑科技有限公司 | Casing moulded by the wood of a kind of many combining forms |
| CN110406222A (en) * | 2019-07-05 | 2019-11-05 | 浙江中财型材有限责任公司 | A kind of weather-proof colored box material of foaming PVC co-extrusion and preparation method thereof |
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Application publication date: 20111228 |