CN105348702A - Imitation wood striped plastic profile with clear textures and production process thereof - Google Patents
Imitation wood striped plastic profile with clear textures and production process thereof Download PDFInfo
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- CN105348702A CN105348702A CN201510938059.XA CN201510938059A CN105348702A CN 105348702 A CN105348702 A CN 105348702A CN 201510938059 A CN201510938059 A CN 201510938059A CN 105348702 A CN105348702 A CN 105348702A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses an imitation wood striped plastic profile with clear textures and a production process thereof. The imitation wood striped plastic profile comprises base stock and composite pigment, wherein the base stock is prepared from 420 parts of PVC, 13 to 14 parts of ACR processing aid, 25 parts of stabilizer, 50 to 55 parts of CPE (Chlorinated Polyethylene), 32 parts of integrated CaCO3, 20 parts of superfine CaCO3, 36 to 38 parts of titanium dioxide, 1.5 to 2 parts of antioxygen, 1 to 1.5 parts of anti-ultraviolet absorbent and 2.5 to 3 parts of ultramarine; the composite pigment comprises bottom color and texture color, and components of the composite pigment are optimized. Trough the invention, the preparation process is further optimized, the defect of unclear textures and problems of nonuniform wood grains and color difference in an imitation wood striped plastic profile produced in the prior art are overcome and solved by optimizing the process.
Description
Technical field
The invention belongs to PVC plastic profiled material, be specifically related to the wooden striped plastic material production technique that a kind of texture is clearly demarcated.
Background technology
Along with the raising that people require decorate properties, conventional white PVC plastic door and window seems sometimes can not harmonious coordination with body of wall and interior decoration.At present, the method for processing colour section bar mainly contains: bicolor co-extrusion, surface coating, surface spraying, printing thermoprint etc., they respectively have relative merits.Present mill natural wood grain colour pattern material is subject to people's favor gradually.When not doing any transformation to forcing machine, in plastic powder, add Masterbatch, production entire body imitates natural wood grain look PVC plastic section bar, is more and more adopted by section bar manufacturer.But, if grasp bad to technology, technique, the various section section bars produced are as window frame, sash, press strip, ingredient etc., the size of wood grain, how much inconsistent, color has the depth, will there is aberration between its window frame of the door and window of assembling, sash, press strip, whole bed wood grain look can not be harmonious, do not have decorative effect.
In existing technique, usually just two kinds of Masterbatchs are mixed to form wood grain layer, the section bar texture of preparation is fuzzy like this.Therefore, the wooden striped plastic material how avoiding above-mentioned defect to prepare a kind of texture clearly demarcated is the problem that this area needs solution badly.
Summary of the invention
In view of this, the wooden striped plastic material that the object of the present invention is to provide a kind of texture clearly demarcated and production technique thereof.By this technique to solve various section bar wood texture fuzzy, uneven one problem of making peace aberration, makes the door and window made more attractive in appearance.
For achieving the above object, the invention provides following technical scheme:
1, the wooden striped plastic material that a kind of texture is clearly demarcated, described wooden striped plastic material comprises base-material and compound colorant, by mass parts, described base-material comprises: PVC420 part, ACR processing aid 13-14 part, stablizer 25 parts, chlorinatedpolyethylene 50-55 part, integrated CaCO
332 parts, ultra-fine CaCO
320 parts, titanium dioxide 36-38 part, oxidation inhibitor 1.5-2 part, ultraviolet-resistant absorbent 1-1.5 part, ultramarine 2.5-3 part;
Described compound colorant comprises background color and texture, by mass parts, described background color comprises PVC (SG-05 type) 120 parts, anti-impact modifier 7-8 part, stablizer 4.5-5.5 part, processing aid 2.5-3 part, lubricant 0.5 part, ultraviolet-resistant absorbent 0.5-1 part, oxidation inhibitor 0.2-0.5 part, pigment 2 parts; Described texture comprises PVC (SG-03 type) 120 parts, anti-impact modifier 7-8 part, stablizer 4.5-5.5 part, processing aid 2.5-3 part, lubricant 0.8 part, ultraviolet-resistant absorbent 0.5-1 part, oxidation inhibitor 0.2-0.5 part, pigment 1.5 parts.Preferably, the oxidation inhibitor in described base-material and compound colorant is anti-phosphite, and stablizer is calcium zinc stabilizer.
Preferably, the anti-impact modifier in described compound colorant is one or more in chlorinatedpolyethylene, polyacrylate polymers, MBS or ABS.
Preferably, the UV light absorber in described base-material and compound colorant is by ultraviolet absorbent UV-531 0:0.1 part, and UV light absorber UV-327:0.3 part forms.
2, a preparation technology for the wooden striped plastic material that texture is clearly demarcated, extruded by twin screw extruder plasticizing, concrete steps are as follows:
1) base-material is added major ingredient machine barrel, described major ingredient machine barrel comprises machine barrel, extrusion die and screw rod, described machine barrel has 4 temperature-controlled areas, adjustment machine barrel one, two district's temperature is 185 ~ 190 DEG C, three, four district's temperature are 176 ~ 183 DEG C, described head die has 2 temperature-controlled areas, and arranging extrusion die one, two district's temperature is 195-197 DEG C, and major ingredient screw barrel rotating speed controls as 12-15r/min;
2) by the starting material of the background color of compound colorant and texture respectively first granulation then with step 1) synchronous compound colorant is added auxiliary material machine barrel, heating and temperature control is at 160 ~ 170 DEG C, and auxiliary material machine barrel screw speed is 6 ~ 10r/min; Two kinds of veriform PVC polymerization degree are different, and under same extruder temperature, fusing degree is different, therefore forms the clearly demarcated plastic material of texture;
3) step 1) with step 2) medium section extruded by forcing machine, it is 1.6 ~ 1.8m/min that extruded velocity controls, after draw into mould shape through tractor, pulling speed is 1.6 ~ 1.8m/min, then Water cooling under 18 ~ 23 DEG C of temperature condition.
Preferably, step 3) described in mould shape adopt vacuum mold sizing, by vacuum degree control at 0.05-0.08MPa.
Beneficial effect of the present invention is:
The present invention is by being optimized raw-material proportioning, suitable processing parameter is set, because the temperature of machine barrel four sections is arranged have considerable influence to plastic powder and compound colorant asynchronous plasticization, temperature high wood grain is of light color, the low wood grain color of temperature is dark, and the present invention is made peace by a defect and wood grain uneven optimization of technique being solved to the imitative wood grain plastic material texture fuzzy produced in prior art the problem of aberration.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing:
Fig. 1 represents the preparation technology figure that the present invention prepares imitative wooden striped plastic material.
Embodiment
Below the preferred embodiments of the present invention are described in detail.The experimental technique of unreceipted actual conditions in embodiment, the usually conveniently conditioned disjunction condition of advising according to manufacturer.
Embodiment 1
In the present embodiment, raw materials is as follows: described wooden striped plastic material comprises base-material and compound colorant, and by mass parts, described base-material comprises: PVC420 part, ACR processing aid 13 parts, calcium zinc stabilizer 25 parts, chlorinatedpolyethylene 50 parts, integrated CaCO
332 parts, ultra-fine CaCO
320 parts, titanium dioxide 36 parts, anti-phosphite 2 parts, ultraviolet-resistant absorbent 1-1.5 part, ultramarine 2.5-3 part;
Described compound colorant comprises background color and texture, by mass parts, described background color comprises PVC (SG-05 type) 120 parts, chlorinatedpolyethylene 7 parts, calcium zinc stabilizer 4.5 parts, processing aid 2.5 parts, lubricant 0.5 part, ultraviolet-resistant absorbent 0.5 part, anti-phosphite 0.2 part, pigment 2 parts; Described texture comprises PVC (SG-03 type) 120 parts, chlorinatedpolyethylene 7 parts, calcium zinc stabilizer 4.5 parts, processing aid 2.5 parts, lubricant 0.8 part, ultraviolet-resistant absorbent 0.5 part, anti-phosphite 0.2 part, pigment 1.5 parts;
UV light absorber in described base-material and compound colorant is by ultraviolet absorbent UV-531 0:0.1 part, and UV light absorber UV-327:0.3 part forms.
With above-mentioned composition for raw material is extruded by twin screw extruder plasticizing according to following technique, as shown in Figure 1, concrete steps are as follows:
1) base-material is added major ingredient machine barrel, described major ingredient machine barrel comprises machine barrel, extrusion die and screw rod, described machine barrel has 4 temperature-controlled areas, adjustment machine barrel one district temperature is 185 DEG C, machine barrel two district temperature is 190 DEG C, machine barrel three district temperature is 183 DEG C, machine barrel four district temperature is 176 DEG C, described head die has 2 temperature-controlled areas, arrange that extrusion die one district temperature is 195 DEG C, extrusion die two district temperature is 197 DEG C, major ingredient screw barrel rotating speed controls as 15r/min;
2) by the starting material of the background color of compound colorant and texture respectively first granulation then with step 1) synchronous compound colorant is added auxiliary material machine barrel, heating and temperature control is at 165 DEG C, and auxiliary material machine barrel screw speed is 8r/min;
3) step 1) with step 2) Raw extruded by forcing machine, extruded velocity controls as 1.8m/min, after through tractor draw into vacuum tightness be 0.08MPa vacuum mold sizing, pulling speed is 1.6m/min, then Water cooling under 23 DEG C of temperature condition, prepares imitative wood grain plastic material.
Prepared imitative wood grain profile texture is clearly homogeneous.
Embodiment 2
In the present embodiment, raw materials is as follows: described wooden striped plastic material comprises base-material and compound colorant, and by mass parts, described base-material comprises: PVC420 part, ACR processing aid 14 parts, calcium zinc stabilizer 25 parts, chlorinatedpolyethylene 55 parts, integrated CaCO
332 parts, ultra-fine CaCO
320 parts, titanium dioxide 38 parts, anti-phosphite 1.5 parts, ultraviolet-resistant absorbent 1.5 parts, ultramarine 2.5-3 part;
Described compound colorant comprises background color and texture, by mass parts, described background color comprises PVC (SG-05 type) 120 parts, chlorinatedpolyethylene 8 parts, calcium zinc stabilizer 5.5 parts, processing aid 3 parts, lubricant 0.5 part, ultraviolet-resistant absorbent 1 part, anti-phosphite 0.5 part, pigment 2 parts; Described texture comprises PVC (SG-03 type) 120 parts, chlorinatedpolyethylene 8 parts, calcium zinc stabilizer 5.5 parts, processing aid 3 parts, lubricant 0.8 part, ultraviolet-resistant absorbent 1 part, anti-phosphite 0.5 part, pigment 1.5 parts;
UV light absorber in described base-material and compound colorant is by ultraviolet absorbent UV-531 0:0.1 part, and UV light absorber UV-327:0.3 part forms.
With above-mentioned composition for raw material is extruded by twin screw extruder plasticizing according to following technique, as shown in Figure 1, concrete steps are as follows:
1) base-material is added major ingredient machine barrel, described major ingredient machine barrel comprises machine barrel, extrusion die and screw rod, described machine barrel has 4 temperature-controlled areas, adjustment machine barrel one district temperature is 187 DEG C, machine barrel two district temperature is 190 DEG C, machine barrel three district temperature is 180 DEG C, machine barrel four district temperature is 178 DEG C, described head die has 2 temperature-controlled areas, arrange that extrusion die one district temperature is 195 DEG C, extrusion die two district temperature is 195 DEG C, major ingredient screw barrel rotating speed controls as 12r/min;
2) by the starting material of the background color of compound colorant and texture respectively first granulation then with step 1) synchronous compound colorant is added auxiliary material machine barrel, heating and temperature control is at 170 DEG C, and auxiliary material machine barrel screw speed is 10r/min;
3) step 1) with step 2) Raw extruded by forcing machine, extruded velocity controls as 1.6m/min, after through tractor draw into vacuum tightness be 0.05MPa vacuum mold sizing, pulling speed is 1.8m/min, then Water cooling under 23 DEG C of temperature condition, prepares imitative wood grain plastic material.
Prepared imitative wood grain profile texture is clearly homogeneous.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (6)
1. the wooden striped plastic material that a texture is clearly demarcated, it is characterized in that, described wooden striped plastic material comprises base-material and compound colorant, and by mass parts, described base-material comprises: PVC420 part, ACR processing aid 13-14 part, stablizer 25 parts, chlorinatedpolyethylene 50-55 part, integrated CaCO
332 parts, ultra-fine CaCO
320 parts, titanium dioxide 36-38 part, oxidation inhibitor 1.5-2 part, ultraviolet-resistant absorbent 1-1.5 part, ultramarine 2.5-3 part; Described compound colorant comprises background color and texture, by mass parts, described background color comprises PVC (SG-05 type) 120 parts, anti-impact modifier 7-8 part, stablizer 4.5-5.5 part, processing aid 2.5-3 part, lubricant 0.5 part, ultraviolet-resistant absorbent 0.5-1 part, oxidation inhibitor 0.2-0.5 part, pigment 2 parts; Described texture comprises PVC (SG-03 type) 120 parts, anti-impact modifier 7-8 part, stablizer 4.5-5.5 part, processing aid 2.5-3 part, lubricant 0.8 part, ultraviolet-resistant absorbent 0.5-1 part, oxidation inhibitor 0.2-0.5 part, pigment 1.5 parts.
2. the wooden striped plastic material that a kind of texture is clearly demarcated according to claim 1, is characterized in that, the oxidation inhibitor in described base-material and compound colorant is anti-phosphite, and stablizer is calcium zinc stabilizer.
3. the wooden striped plastic material that a kind of texture is clearly demarcated according to claim 1, is characterized in that, the anti-impact modifier in described compound colorant is one or more in chlorinatedpolyethylene, polyacrylate polymers, MBS or ABS.
4. the wooden striped plastic material that a kind of texture is clearly demarcated according to claim 1, is characterized in that, the UV light absorber in described base-material and compound colorant is by ultraviolet absorbent UV-531 0:0.1 part, and UV light absorber UV-327:0.3 part forms.
5. a preparation technology for the wooden striped plastic material that texture is clearly demarcated, extruded by twin screw extruder plasticizing, it is characterized in that, concrete steps are as follows:
1) base-material is added major ingredient machine barrel, described major ingredient machine barrel comprises machine barrel, extrusion die and screw rod, described machine barrel has 4 temperature-controlled areas, adjustment machine barrel one, two district's temperature is 185 ~ 190 DEG C, three, four district's temperature are 176 ~ 183 DEG C, described head die has 2 temperature-controlled areas, and arranging extrusion die one, two district's temperature is 195-197 DEG C, and major ingredient screw barrel rotating speed controls as 12-15r/min;
2) by the starting material of the background color of tertiary colour colorant and texture respectively first granulation then with step 1) synchronous compound colorant is added auxiliary material machine barrel, heating and temperature control is at 160 ~ 170 DEG C, and auxiliary material machine barrel screw speed is 6 ~ 10r/min;
3) step 1) with step 2) Raw extruded by forcing machine, it is 1.6 ~ 1.8m/min that extruded velocity controls, after draw into mould shape through tractor, pulling speed is 1.6 ~ 1.8m/min, then Water cooling under 18 ~ 23 DEG C of temperature condition.
6. preparation technology according to claim 5, is characterized in that, step 3) described in mould shape adopt vacuum mold sizing, by vacuum degree control at 0.05-0.08MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938059.XA CN105348702B (en) | 2015-12-15 | 2015-12-15 | A kind of clearly demarcated imitation wood matter striped plastic material of texture and its production technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510938059.XA CN105348702B (en) | 2015-12-15 | 2015-12-15 | A kind of clearly demarcated imitation wood matter striped plastic material of texture and its production technology |
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| CN105348702A true CN105348702A (en) | 2016-02-24 |
| CN105348702B CN105348702B (en) | 2017-10-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322898A (en) * | 2017-07-05 | 2017-11-07 | 合肥万之景门窗有限公司 | A kind of manufacture method of textured anti-aging aluminum alloy plastic coated door-window section bar |
| CN107718483A (en) * | 2017-10-26 | 2018-02-23 | 佛山市三水兴达涂料有限公司 | A kind of imitation wood line plastic irregular profile processing unit (plant) and processing technology |
| CN107987424A (en) * | 2017-12-18 | 2018-05-04 | 东莞市荣晟颜料有限公司 | It is a kind of suitable for imitation wood line master batch of PVC and preparation method thereof |
| CN110214159A (en) * | 2017-01-24 | 2019-09-06 | Sabic环球技术有限责任公司 | Polymer composition with texture |
| CN111070623A (en) * | 2019-12-04 | 2020-04-28 | 广州康森新材料科技有限公司 | Preparation method of wood-grain-like co-extrusion color-mixing wood-plastic composite material |
| CN112776304A (en) * | 2021-02-01 | 2021-05-11 | 佛山中科吉港科技有限公司 | Wood-grain-like profile extrusion method and extruder |
| CN114393758A (en) * | 2022-01-18 | 2022-04-26 | 北京华夏理想证章有限公司 | Preparation method of die-cast simulated emerald texture cap emblem |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110214159A (en) * | 2017-01-24 | 2019-09-06 | Sabic环球技术有限责任公司 | Polymer composition with texture |
| CN107322898A (en) * | 2017-07-05 | 2017-11-07 | 合肥万之景门窗有限公司 | A kind of manufacture method of textured anti-aging aluminum alloy plastic coated door-window section bar |
| CN107718483A (en) * | 2017-10-26 | 2018-02-23 | 佛山市三水兴达涂料有限公司 | A kind of imitation wood line plastic irregular profile processing unit (plant) and processing technology |
| CN107987424A (en) * | 2017-12-18 | 2018-05-04 | 东莞市荣晟颜料有限公司 | It is a kind of suitable for imitation wood line master batch of PVC and preparation method thereof |
| CN111070623A (en) * | 2019-12-04 | 2020-04-28 | 广州康森新材料科技有限公司 | Preparation method of wood-grain-like co-extrusion color-mixing wood-plastic composite material |
| CN111070623B (en) * | 2019-12-04 | 2021-01-15 | 广州康森新材料科技有限公司 | Preparation method of wood-grain-like co-extrusion color-mixing wood-plastic composite material |
| CN112776304A (en) * | 2021-02-01 | 2021-05-11 | 佛山中科吉港科技有限公司 | Wood-grain-like profile extrusion method and extruder |
| CN114393758A (en) * | 2022-01-18 | 2022-04-26 | 北京华夏理想证章有限公司 | Preparation method of die-cast simulated emerald texture cap emblem |
| CN114393758B (en) * | 2022-01-18 | 2024-01-26 | 北京华夏理想证章有限公司 | Preparation method of die-casting simulated emerald grain cap badge |
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| Publication number | Publication date |
|---|---|
| CN105348702B (en) | 2017-10-24 |
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