CN102942742B - Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof - Google Patents
Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof Download PDFInfo
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- CN102942742B CN102942742B CN201210509606.9A CN201210509606A CN102942742B CN 102942742 B CN102942742 B CN 102942742B CN 201210509606 A CN201210509606 A CN 201210509606A CN 102942742 B CN102942742 B CN 102942742B
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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
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a spray coating-free propene polymer (PP) material with high gloss and a metal or pearly-lustre flashing effect. The material consists of the following substances by weight percent: 97-99% of PP, 0.1-0.3% of antioxidant 168, 0.1-0.5% of antioxidant 1010, 0.1-1% of lubricating dispersing agent TAF and 0.3-1.5% of effect pigment. The invention further provides a method for preparing the PP material. The PP material has the advantages that the PP material can be directly injected without spray coating, so that high gloss, pearly-lustre flashing and a metal painting effect can be obtained, and the PP material is attractive in appearance; compared with a painting technology, the cost is saved, and the depainting problem during the use process of a produce is avoided; and through the coordination of a highlight mirror plane die and high die temperature forming conditions, the problems of the welding lines and flow lines of the product can also be solved, and the spray coating is really not needed, so that the PP material has a wide application prospect in the fields of household appliances, automobiles, sports goods and the like.
Description
Technical field
The present invention relates to a kind of PP material, specifically, is a kind of PP material and preparation method thereof having high gloss, metal or pearly-lustre flicker effect and exempt to spray.
Background technology
The outward appearance such as colour, metal effect of glimmering in recent years is just becoming the new fashion of the commodity industry such as household electrical appliances, electronics and office.For obtaining colored flicker effect, traditional spraying technology can be adopted.But because spraying coating process and flow process are comparatively complicated, priming paint solvent evaporates contaminate environment, produces not environmentally and cost is higher, and has fraction defective height and reclaim the defects such as difficulty, therefore, the new alternative technology color effect attractive in appearance for product brings is being sought by increasing manufacturer.
Chinese patent literature CN 200810039829.7, applying date 2008-06-30, disclose a kind of heat-proof type high-gloss reinforced polypropylene and preparation method thereof, it is characterized in that weight percentages of components is: polypropylene 50-85%, high gloss weighting agent 5-20%, glass fibre 5-30%, compatilizer 2-10%, nucleator 0.1-0.5%, oxidation inhibitor 0.1-1%, lubrication dispersing agent 0.1-0.5%; The polypropylene material of this invention has high gloss, high heat resistance, higher rigidity and surface hardness, can be widely used in pedestal and the housing of household electrical appliance.Chinese patent literature CN 201010227777.3, applying date 2010-07-14, disclose a kind of high-gloss polypropylene material and preparation method thereof, described high-gloss polypropylene material is composed of the following components by weight: PP powder 100, compatilizer 4 ~ 8, white oil 0.4 ~ 0.8, ZrO
2powder 30 ~ 60, lubricant 2 ~ 3, nucleator 0.3 ~ 0.5, oxidation inhibitor 0.4 ~ 0.6; Wherein, described PP powder is homopolymerization type polypropylene powder, and described white oil is technical grade, and described oxidation inhibitor is formed so that parts by weight 1: 2 are composite by Hinered phenols antioxidant and phosphite ester kind antioxidant; The high-gloss polypropylene material of this invention adds appropriate ZrO in existing PP material
2powder, when mineral substance addition is larger, does not affect the glossiness of PP material, and surface is without pit.But although above-mentioned polypropylene material has the excellent appearance of high gloss, do not possess colored flicker effect.
Chinese patent literature CN 201210036011.6, applying date 2012-02-16, disclose a kind of polypropene composition that there is the glossy metal-like of paint and exempt to spray, said composition be by the polypropylene of 50 ~ 99.8%, 0 ~ 20% elastomerics, the talcum powder of 0 ~ 30%, the flake aluminum of 0.1 ~ 2% and 0.1 ~ 2% color and luster brightener prepare, the mass ratio of flake aluminum wherein and color and luster brightener is 1: (2 ~ 5).Of the present invention have the polypropene composition that the glossy metal-like of paint exempts to spray and directly can be injection molded into product, and product has the glossy and metal-like of good paint, and its appearance effect is close with effect of spraying paint.Of the present invention have the polypropene composition that the glossy metal-like of paint exempts to spray and eliminate the troublesome operation of Traditional paint spray, and greatly simplify operation, and preparation technology is simple, equipment requirements is low, and product good article rate is high, also energy-conserving and environment-protective while reducing costs.This polypropene composition eliminates spraying operation can obtain the outward appearance of painting glossy metal-like, but have not been reported about having the PP material that high gloss, metal or pearly-lustre flicker effect exempt to spray at present.
Summary of the invention
The object of the invention is for deficiency of the prior art, a kind of PP material having high gloss, metal or pearly-lustre flicker effect and exempt to spray is provided.
Of the present invention again one object be that a kind of preparation method of above-mentioned PP material is provided.
Another object of the present invention provides a kind of purposes of above-mentioned PP material.
For achieving the above object, the technical scheme that the present invention takes is:
Have the PP material that high gloss, metal or pearly-lustre flicker effect are exempted to spray, it is made up of the raw material of following weight percent:
PP 97-99%，
Irgasfos 168 0.1-0.3%,
Antioxidant 1010 0.1-0.5%,
Lubrication dispersing agent TAF 0.1-1%,
Effect pigment 0.3-1.5%.
Preferably, described PP material is made up of the raw material of following weight percent:
PP 97%，
Irgasfos 168 0.3%,
Antioxidant 1010 0.5%,
Lubrication dispersing agent TAF 0.7%,
Effect pigment 1.5%.
Preferably, described PP material is made up of the raw material of following weight percent:
PP 99%，
Irgasfos 168 0.1%,
Antioxidant 1010 0.2%,
Lubrication dispersing agent TAF 0.2%,
Effect pigment 0.1%.
In the raw material of above-mentioned PP material, preferably, described PP is atactic copolymerized polypropene;
The MI of described PP is 9-11g/10min;
The MI of described PP is 10g/10min;
Described effect pigment is metallic aluminium powder and/or pearlescence.
For realizing above-mentioned second object, the technical scheme that the present invention takes is: have the preparation method that high gloss, metal or pearly-lustre flicker effect exempt from the PP material sprayed as above, comprise the following steps:
1) raw material is taken by following weight percent: PP 97-99%, irgasfos 168 0.1-0.3%, antioxidant 1010 0.1-0.5%, lubrication dispersing agent 0.1-1%, put into high-speed mixer and mixing 2-5 minute, and then add the effect pigment of weight percent 0.3-1.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 35-40HZ, and temperature is 215-230 DEG C.
For realizing above-mentioned 3rd object, the technical scheme that the present invention takes is:
Have as above high gloss, metal or pearly-lustre flicker effect exempt from spray PP material preparing the purposes in household electrical appliances, automobile or sports goods.
The invention has the advantages that:
1, PP material of the present invention can obtain good high gloss and pearly-lustre flicker without the need to spraying direct injection moulding, and metal sprays paint effect, possesses good appearance, 20%-25% can be reduced compared with the cost of lacquer spraying technique, avoid the problem of depainting in goods use procedure simultaneously, the work-ing life of goods can be extended, another its keeps attractive in appearance for a long time, in addition, PP material of the present invention coordinates the condition of molding of high light mirror surface mould and higher mould temperature again, the problem of goods weld bond and current mark can also be solved, achieve and real exempt from spraying;
2, pass through the design to PP Material formula makeup of the present invention and improvement, the product of various luster degree and the different transparency can also be obtained;
3, the preparation method of PP material of the present invention is simple, low cost, low stain, can the traditional spraying coating process of Some substitute;
In sum, PP material of the present invention can be widely used in the fields such as household electrical appliances, automobile and sports goods.
Embodiment
Below embodiment provided by the invention is elaborated.
Herein, described PP Chinese polypropylene, English name polypropylene; The PP of the use in following embodiment is atactic copolymerized polypropene, and described atactic copolymerized polypropene has high gloss, high transparent; Described irgasfos 168 is a kind of phosphite kind antioxidant; Described antioxidant 1010 is a kind of Hinered phenols antioxidant; Described lubrication dispersing agent TAF is modification ethylene bis-fatty acid amides; Described effect pigment comprises the pigment such as pearl effect, Aero Glass, diamond effect and color changeable effect, as metallic aluminium powder and pearlescence; Described metallic aluminium powder is a kind of metallic pigment of silver color, adds a small amount of lubricant with pure aluminum foil, crushes as squamous powder, then form through polishing through pounding; Its transverse section of described pearlescence has the physical structure being similar to pearl, and kernel is the mica of low optical specific refractory power, and being wrapped in outer field is the metal oxide of high refractive index, as titanium dioxide or ferric oxide etc.
embodiment 1 PP material preparation () of the present invention
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 10g/10min) 97%, irgasfos 168 0.3%, antioxidant 1010 0.5%, lubrication dispersing agent TAF 0.7%, put into high-speed mixer and mixing 3 minutes, and then add the metallic aluminium powder of weight percent 1.0% and the pearlescence of 0.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 35HZ, and temperature is 215-230 DEG C.
embodiment 2 PP material preparation (two) of the present invention
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 10g/10min) 98.5%, irgasfos 168 0.1%, antioxidant 1010 0.2%, lubrication dispersing agent TAF 0.2%, put into high-speed mixer and mixing 2 minutes, and then add the metallic aluminium powder of weight percent 1.0%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 40HZ, and temperature is 215-230 DEG C.
embodiment 3 PP material preparation (three) of the present invention
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 9g/10min) 99%, irgasfos 168 0.1%, antioxidant 1010 0.2%, lubrication dispersing agent TAF 0.2%, put into high-speed mixer and mixing 5 minutes, and then add the pearlescence of weight percent 0.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 37HZ, and temperature is 215-230 DEG C.
embodiment 4 PP material preparation (four) of the present invention
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 11g/10min) 98.4%, irgasfos 168 0.2%, antioxidant 1010 0.1%, lubrication dispersing agent TAF 0.1%, put into high-speed mixer and mixing 3 minutes, and then add the metallic aluminium powder of weight percent 0.1% and the pearlescence of 0.2%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 40HZ, and temperature is 215-230 DEG C.
embodiment 5 PP material preparation (five) of the present invention
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 10g/10min) 98%, irgasfos 168 0.1%, antioxidant 1010 0.3%, lubrication dispersing agent TAF 0.1%, put into high-speed mixer and mixing 2 minutes, and then add the metallic aluminium powder of weight percent 0.5% and the pearlescence of 1.0%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 35HZ, and temperature is 215-230 DEG C.
comparative example 1
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 10g/10min) 96.5%, irgasfos 168 0.4%, antioxidant 1010 0.5%, lubrication dispersing agent TAF 1.1%, put into high-speed mixer and mixing 3 minutes, and then add the metallic aluminium powder of weight percent 1.0% and the pearlescence of 0.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 35HZ, and temperature is 215-230 DEG C.
comparative example 2
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 10g/10min) 98.5%, irgasfos 168 0.3%, lubrication dispersing agent TAF 0.2%, puts into high-speed mixer and mixing 2 minutes, and then add the metallic aluminium powder of weight percent 1.0%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 40HZ, and temperature is 215-230 DEG C.
comparative example 3
1) raw material is taken by following weight percent: atactic copolymerized polypropene (MI is 9g/10min) 99%, irgasfos 168 0.1%, antioxidant 1010 0.2%, talcum powder 0.2%, put into high-speed mixer and mixing 5 minutes, and then add the pearlescence of weight percent 0.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 37HZ, and temperature is 215-230 DEG C.
comparative example 4
1) raw material is taken by following weight percent: isotactic Co-polypropylene (MI is 10g/10min) 97%, irgasfos 168 0.3%, antioxidant 1010 0.5%, lubrication dispersing agent TAF 0.7%, put into high-speed mixer and mixing 3 minutes, and then add the metallic aluminium powder of weight percent 1.0% and the pearlescence of 0.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 35HZ, and temperature is 215-230 DEG C.
embodiment 6 Performance comparision
The direct injection moulding of PP material prepared by embodiment 1-5 and comparative example 1-4, evaluates the glossiness of injection moulding model, metal-like and pearly-lustre flicker effect.Concrete evaluation method is: choose 7 members through paint color and luster brightness training as evaluation group, carry out glossiness, metal-like, pearly-lustre flicker effect level evaluation to injection moulding model.Wherein glossiness is divided into Three Estate: excellent, general, poor; Metal-like is divided into Three Estate: strong, in, weak; Pearly-lustre flicker effect is divided into Three Estate: obvious, general, nothing.With the attribute ratings that a certain evaluation grade person in the majority is this model performance.If when occurring that same model different evaluation human assessment grade difference is larger, again paint color and luster brightness training need be carried out to evaluation group member.The concrete opinion rating result of each PP material is as shown in the table.
| Glossiness | Metal-like | Pearly-lustre flicker effect | |
| Embodiment 1 | Excellent | By force | Obviously |
| Embodiment 2 | Excellent | By force | Obviously |
| Embodiment 3 | Excellent | By force | Obviously |
| Embodiment 4 | Excellent | By force | Obviously |
| Embodiment 5 | Excellent | By force | Obviously |
| Comparative example 1 | Generally | Weak | Generally |
| Comparative example 2 | Difference | Weak | Generally |
| Comparative example 3 | Generally | Weak | Nothing |
| Comparative example 4 | Difference | Weak | Nothing |
As can be seen from the above table, PP material prepared by the present invention has high gloss, metal or pearly-lustre flicker effect, direct injection moulding can obtain excellent outward appearance, and especially metal or pearly-lustre flicker effect obviously, therefore have broad application prospects in fields such as household electrical appliances, automobile and sports goodss.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (5)
1. have the PP material that high gloss, metal or pearly-lustre flicker effect are exempted to spray, it is characterized in that, it is made up of the raw material of following weight percent:
PP 97-99%，
Irgasfos 168 0.1-0.3%,
Antioxidant 1010 0.1-0.5%,
Lubrication dispersing agent TAF 0.1-1%,
Effect pigment 0.3-1.5%,
Described PP is atactic copolymerized polypropene, and the MI of described PP is 9-11g/10min, and described effect pigment is metallic aluminium powder and/or pearlescence.
2. the PP material that there is high gloss, metal or pearly-lustre flicker effect and exempt to spray according to claim 1, it is characterized in that, it is made up of the raw material of following weight percent:
PP 97%，
Irgasfos 168 0.3%,
Antioxidant 1010 0.5%,
Lubrication dispersing agent TAF 0.7%,
Effect pigment 1.5%.
3. the PP material having high gloss, metal or pearly-lustre flicker effect and exempt to spray according to claim 1, it is characterized in that, the MI of described PP is 10g/10min.
4. according to claim 1 have the preparation method that high gloss, metal or pearly-lustre flicker effect exempt from the PP material sprayed, and it is characterized in that, comprise the following steps:
1) raw material is taken by following weight percent: PP 97-99%, irgasfos 168 0.1-0.3%, antioxidant 1010 0.1-0.5%, lubrication dispersing agent TAF 0.1-1%, put into high-speed mixer and mixing 2-5 minute, and then add the effect pigment of weight percent 0.3-1.5%, discharging;
2) mixed for step 1) raw material is put into twin screw machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 35-40Hz, and temperature is 215-230 DEG C.
5. according to claim 1 have high gloss, metal or pearly-lustre flicker effect exempt from spray PP material preparing the purposes in household electrical appliances, automobile or sports goods.
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| CN201210509606.9A CN102942742B (en) | 2012-12-04 | 2012-12-04 | Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof |
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| CN201210509606.9A CN102942742B (en) | 2012-12-04 | 2012-12-04 | Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014172901A1 (en) * | 2013-04-26 | 2014-10-30 | The Procter & Gamble Company | A glossy container |
| CN104693601A (en) * | 2015-03-04 | 2015-06-10 | 安徽科聚新材料有限公司 | Imitation metal flame-retardant polypropylene composite material and preparation method of composite material |
| US11161966B2 (en) | 2016-01-18 | 2021-11-02 | The Procter And Gamble Company | Article with visual effects |
| CN106279971A (en) * | 2016-07-29 | 2017-01-04 | 广东壹豪新材料科技股份有限公司 | A kind of high light PP factory formula exempting from spraying |
| CN107189334B (en) * | 2017-07-11 | 2019-12-20 | 中山市鸿盛新材料有限公司 | Non-flow-pattern spraying-free plastic for injection molding and preparation method thereof |
| CN109438849A (en) * | 2018-11-13 | 2019-03-08 | 上海博怀化工有限公司 | One kind is exempted to spray master batch and preparation method thereof for polypropylene material to be dedicated |
| CN109776964A (en) * | 2019-01-29 | 2019-05-21 | 杭州纳尔森精细化工有限公司 | A kind of metallized thread, its production method and purposes |
| CN111019230A (en) * | 2019-12-09 | 2020-04-17 | 嘉兴天浩实业有限公司 | Metal color imitation draw-bar box body |
| CN113388202B (en) * | 2021-06-29 | 2022-11-01 | 上海艾镇新材料有限公司 | High-gloss modified PP material and preparation method thereof |
| CN114106636A (en) * | 2021-11-02 | 2022-03-01 | 会通新材料(上海)有限公司 | High-gloss polypropylene-based powder coating and preparation method and application thereof |
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| CN102585365A (en) * | 2012-02-16 | 2012-07-18 | 金发科技股份有限公司 | Coating-free polypropylene composition with paint brightness and metal texture and preparation method thereof |
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| CN102585365A (en) * | 2012-02-16 | 2012-07-18 | 金发科技股份有限公司 | Coating-free polypropylene composition with paint brightness and metal texture and preparation method thereof |
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