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CN102604232A - Antistatic polypropylene material and preparation method thereof - Google Patents

Antistatic polypropylene material and preparation method thereof Download PDF

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Publication number
CN102604232A
CN102604232A CN2011100226748A CN201110022674A CN102604232A CN 102604232 A CN102604232 A CN 102604232A CN 2011100226748 A CN2011100226748 A CN 2011100226748A CN 201110022674 A CN201110022674 A CN 201110022674A CN 102604232 A CN102604232 A CN 102604232A
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CN
China
Prior art keywords
polypropylene material
parts
antioxidant
polypropylene
antistatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011100226748A
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Chinese (zh)
Inventor
宋伟华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Genius New Materials Co Ltd
Original Assignee
Hefei Genius New Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Genius New Materials Co Ltd filed Critical Hefei Genius New Materials Co Ltd
Priority to CN2011100226748A priority Critical patent/CN102604232A/en
Publication of CN102604232A publication Critical patent/CN102604232A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • B29C48/40Means 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The invention relates to an antistatic polypropylene material and a preparation method thereof. The material comprises the following raw materials, by weight, 78-90 parts of polypropylene, 8-15 parts of a carbon fiber, 1-8 parts of a compatilizer and 0.2-0.4 parts of an antioxidant. The addition of the carbon fiber in the invention is small, so the material has a permanent antistatic performance; and the antistatic performance of the prepared polypropylene material can be guaranteed, and simultaneously the tensile strength and the bending strength of the material can be improved. Additionally, the method for improving the antistatic performance of the polypropylene composite material of the invention has the advantages of simple preparation technology and low production cost. When the polypropylene material prepared through the method of the invention is used to produce an antistatic hollow plate, the volume resistivity of the antistatic hollow plate is reduced to 10<3>-10<8>omega.cm, so the antistatic hollow plate can be used to package electrical and electronic products.

Description

A kind of antistatic polypropylene material and preparation method thereof
Technical field
The invention belongs to polymer modification technical field and processing technique field, relate to a kind of polypropylene material and preparation method thereof.
Background technology
Vestolen PP 7052 (PP) is a kind of thermoplastics, light specific gravity, and finished surface hardness is big, and elasticity is high, and thermotolerance, chemicalstability, insulativity are good, are widely used in the numerous areas of producing, living.Yet its volume specific resistance is 10 16~10 20The scope of Ω cm in use is easy to generate static hazard, thereby has limited its application in fields such as electronics, petrochemical complex, medical treatment.
The PP hollow sheeting is to be main raw material with the Vestolen PP 7052, a kind of thin plate that obtains through the forcing machine melted extrusion modeling.Characteristics such as the PP hollow sheeting is nontoxic because of having, tasteless, moistureproof, corrosion-resistant, in light weight, intensity is high, environmental protection all obtain to use widely at industry-by-industry.But the PP hollow sheeting is not antistatic, has limited its application in the electric equipment products packing greatly.
The method of giving the polypropylene material antistatic property at present mainly contains two kinds:
The one, apply static inhibitor in polypropylene surface, the shortcoming of this method is that the static inhibitor of material surface comes off easily, the antistatic cycle is short;
The 2nd, adopt blending method, with Vestolen PP 7052 and static inhibitor melt blending, the PP composite material that obtains had so both had antistatic property, had and had the good mechanical performance.It is material modified that blending method obtains mainly is to utilize static inhibitor at the material surface adsorption moisture, reduces surface resistivity and reaches anlistatig purpose.Common lower molecular weight static inhibitor poor durability, scrubbing resistance is not big to the dependency of ambient moisture.Polymer permanent antistatic agent antistatic effect is lasting, no inductive phase, do not receive condition influence such as wiping and washing, but price is higher.
Thomel has performances such as good electrical conductivity, erosion resistance, is good anti static additive.
Summary of the invention
The objective of the invention is to the defective of prior art and provide a kind of have excellent antistatic can polypropylene material and preparation method thereof.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of polypropylene material, this raw material comprises following component and parts by weight thereof:
Vestolen PP 7052: 78~90 parts,
Thomel: 8~15 parts,
Compatilizer: 1~8 part,
Oxidation inhibitor: 0.2~0.4 part.
Described Vestolen PP 7052 is mobile different COPP or one or more the mixture in the HOPP, and under the condition of 230 ℃ * 2.16kg, its melt flow rate(MFR) is 1~100g/10min.
Described thomel is continuity thomel or staple fibre.
Described oxidation inhibitor comprises primary antioxidant and auxiliary anti-oxidant.
Described primary antioxidant can be selected one or several in hindered phenol or the thioesters kind antioxidant for use; Preferred antioxidant 1010; Chemical name: four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and antioxidant 1076; Chemical name: β-(4 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl) propionic acid stearyl alcohol ester.
Described auxiliary anti-oxidant is selected from one or several in the phosphorite kind antioxidant, preferred oxidation inhibitor 168, chemical name: three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester.
Said compatilizer is a maleic anhydride inoculated polypropylene, and density is 0.89~0.91g/cm 3, percentage of grafting is 0.5~3%; The PP-G that preferred Hefei Genius Advanced Materials Co., Ltd. produces.
A kind of preparation method of above-mentioned polypropylene material, this method may further comprise the steps:
(1), puts into high-speed mixer and mixed 3~5 minutes according to the above ratio with Vestolen PP 7052, compatilizer, oxidation inhibitor;
(2) then said mixture is added in the forcing machine, said thomel is added to the twin screw extruder and extrudes from going into fine mouth, the barrel temperature of control twin screw extruder is in 200~250 ℃ of scopes;
(3) extrude bar and be cooled to room temperature, obtain above-mentioned antistatic polypropylene material through getting into the dicing machine granulation after the blower drying through circulating water channel.
Polypropylene material of the present invention, its performance meets the performance requriements of Anti-static PP hollow sheeting material, and therefore, technical scheme of the present invention comprises the purposes of polypropylene material of the present invention as Anti-static PP hollow sheeting material.
Advantage of the present invention is:
1, the thomel addition of the present invention's use is few, has permanent antistatic performance.
2, the prepared polypropylene material of the present invention can also improve the tensile strength and the flexural strength of material when guaranteeing the material antistatic property.
3, the method preparation technology of the antistatic property that improves PP composite material of the present invention's proposition is simple, production cost is low.
4, the polypropylene material that obtains of method of the present invention is used to produce hollow sheeting, can make the volume specific resistance of hollow sheeting drop to 10 3~10 8Ω cm can be used to pack electric equipment products.
Embodiment
Below in conjunction with embodiment the present invention is further described.
In the prescription of embodiment and Comparative Examples matrix material, Vestolen PP 7052 is the block copolymerization polypropylene that Shanghai Yangzi Petrochemical Co., Ltd produces, and commodity are called YPJ-1215C, and its melting index is a 15g/10min (test condition: 230 ℃ * 2.16kg).Described thomel is a macrofiber.Described compatilizer is the PP-G that Hefei Jieshijiexin Materials Co., Ltd produces, and percentage of grafting is 0.6%, and melting index is a 120g/10min (test condition: 230 ℃ * 2.16kg), density is 0.9g/cm 3Described primary antioxidant is 1010 of Ciba company production, and described auxiliary anti-oxidant is 168 of Ciba company production.
Comprehensive mechanical performance is judged through the numerical value of tensile strength, flexural strength and the volume specific resistance of test gained.
Embodiment 1
With 88.8 parts of PP YPJ-1215C, 3 parts of PP-G, 0.1 part of antioxidant 1010; 0.1 part oxidation inhibitor 168 is put into high-speed mixer and was mixed 5 minutes, then mixture is added twin screw extruder; With 8 parts of said thomels from go into fine mouth lead into, be added in the twin screw extruder then and extrude.Each zone temperatures of the barrel of twin screw extruder is set to respectively: 205 ℃ in a district, 205 ℃ in two districts, 215 ℃ in three districts, 215 ℃ in four districts, 215 ℃ in five districts, 220 ℃ in six districts, 225 ℃ of heads.Extrude bar and be cooled to room temperature, through getting into the dicing machine granulation after the blower drying through circulating water channel.
Embodiment 2
With 83.8 parts of PP YPJ-1215C, 5 parts of PP-G, 0.1 part of antioxidant 1010; 0.1 part oxidation inhibitor 168 is put into high-speed mixer and was mixed 3 minutes, then mixture is added twin screw extruder; With 11 parts of said thomels from go into fine mouth lead into, be added in the twin screw extruder then and extrude.Each zone temperatures of the barrel of twin screw extruder is set to respectively: 215 ℃ in a district, 215 ℃ in two districts, 220 ℃ in three districts, 225 ℃ in four districts, 230 ℃ in five districts, 235 ℃ in six districts, 240 ℃ of heads.Extrude bar and be cooled to room temperature, through getting into the dicing machine granulation after the blower drying through circulating water channel.
Embodiment 3
With 78.8 parts of PP YPJ-1215C, 6 parts of PP-G, 0.1 part of antioxidant 1010; 0.1 part oxidation inhibitor 168 is put into high-speed mixer and was mixed 3 minutes, then mixture is added twin screw extruder; With 15 parts of said thomels from go into fine mouth lead into, be added in the twin screw extruder then and extrude.Each zone temperatures of the barrel of twin screw extruder is set to respectively: 220 ℃ in a district, 225 ℃ in two districts, 225 ℃ in three districts, 235 ℃ in four districts, 235 ℃ in five districts, 240 ℃ in six districts, 245 ℃ of heads.Extrude bar and be cooled to room temperature, through getting into the dicing machine granulation after the blower drying through circulating water channel.
Comparative Examples 1
With 99.8 parts of PP YPJ-1215C, 0.1 part of antioxidant 1010,0.1 part of oxidation inhibitor 168 is put into high-speed mixer and was mixed 5 minutes, mixture is added in the twin screw extruder extrude then.Each zone temperatures of the barrel of twin screw extruder is set to respectively: 205 ℃ in a district, 205 ℃ in two districts, 215 ℃ in three districts, 215 ℃ in four districts, 215 ℃ in five districts, 220 ℃ in six districts, 225 ℃ of heads.Extrude bar and be cooled to room temperature, through getting into the dicing machine granulation after the blower drying through circulating water channel.
Comparative Examples 2
With 94.8 parts of PP YPJ-1215C, 5 parts of PP-G, 0.1 part of antioxidant 1010,0.1 part of oxidation inhibitor 168 is put into high-speed mixer and was mixed 5 minutes, mixture is added in the twin screw extruder extrude then.Each zone temperatures of the barrel of twin screw extruder is set to respectively: 205 ℃ in a district, 205 ℃ in two districts, 215 ℃ in three districts, 215 ℃ in four districts, 215 ℃ in five districts, 220 ℃ in six districts, 225 ℃ of heads.Extrude bar and be cooled to room temperature, through getting into the dicing machine granulation after the blower drying through circulating water channel.
The test result of each prescription is as shown in table 1.
Table 1 embodiment 1~3 and Comparative Examples 1~2 performance table
Embodiment 1 Embodiment 2 Embodiment 3 Comparative Examples 1 Comparative Examples 2 Examination criteria
Melting index (g/10min) 13 12 11 15 18 GB/T?3682
Density (g/cm 3) 0.97 1.00 1.03 0.90 0.90 GB/T?1033
Tensile strength (MPa) 33 36 43 21 25 GB/T?1040
Flexural strength (MPa) 46 50 58 27 30 GB/T?9341
Modulus in flexure (MPa) 2108 2390 2670 1020 1180 GB/T?9341
Volume specific resistance (Ω cm) 6.8×10 8 1.5×10 6 2.0×10 3 1×10 16 1×10 16 GB/T?1410
Can find out from the contrast of embodiment 1~3 and Comparative Examples 1~2, add the volume specific resistance that thomel can significantly reduce material.Can find out that from the performance data of embodiment 1~3 material provided by the invention has good static resistance.This material is through being injection molded into hollow sheeting, and its performance can reach the requirement of electronic apparatus wrapping material.
The above-mentioned description to embodiment is can understand and use the present invention for ease of the those of ordinary skill of this technical field.The personnel of skilled obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.

Claims (8)

1. polypropylene material, it is characterized in that: this material comprises following component and parts by weight thereof:
Vestolen PP 7052: 78~90 parts,
Thomel: 8~15 parts,
Compatilizer: 1~8 part,
Oxidation inhibitor: 0.2~0.4 part.
2. polypropylene material according to claim 1 is characterized in that: described Vestolen PP 7052 is mobile different COPP or one or more the mixture in the HOPP; Under the condition of 230 ℃ * 2.16kg, its melt flow rate(MFR) is 1~100g/10min.
3. polypropylene material according to claim 1 is characterized in that: described thomel is continuity thomel or staple fibre.
4. polypropylene material according to claim 1 is characterized in that: described oxidation inhibitor comprises primary antioxidant and auxiliary anti-oxidant.
5. polypropylene material according to claim 4 is characterized in that: described primary antioxidant is selected from one or several in hindered phenol or the thioesters kind antioxidant; Described auxiliary anti-oxidant is selected from one or several in the phosphorite kind antioxidant.
6. polypropylene material according to claim 5 is characterized in that: described primary antioxidant is selected from antioxidant 1010 or antioxidant 1076; Described auxiliary anti-oxidant is selected from oxidation inhibitor 168.
7. polypropylene material according to claim 1 is characterized in that: said compatilizer is a maleic anhydride inoculated polypropylene, and density is 0.89~0.91g/cm 3, percentage of grafting is 0.5~3%.
8. the preparation method of arbitrary described polypropylene material among the claim 1-7 is characterized in that: may further comprise the steps:
(1) in the described ratio of claim 1 with Vestolen PP 7052, compatilizer, oxidation inhibitor, put into high-speed mixer and mixed 3~5 minutes;
(2) then said mixture is added in the forcing machine, said thomel is added to the twin screw extruder and extrudes from going into fine mouth, the barrel temperature of control twin screw extruder is in 200~250 ℃ of scopes;
(3) extrude bar and be cooled to room temperature, obtain above-mentioned antistatic polypropylene material through getting into the dicing machine granulation after the blower drying through circulating water channel.
CN2011100226748A 2011-01-20 2011-01-20 Antistatic polypropylene material and preparation method thereof Pending CN102604232A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952309A (en) * 2012-12-12 2013-03-06 中国科学院长春应用化学研究所 Improved short carbon fiber reinforced polyolefin composite material and preparation method thereof
CN103435904A (en) * 2013-09-18 2013-12-11 中国石油化工股份有限公司 Antistatic high-rigidity rotational-moulded polyethylene composition and preparation method thereof
CN103601965A (en) * 2013-10-23 2014-02-26 安徽冠泓塑业有限公司 Composition for preparing plastic barrels
CN104151708A (en) * 2014-08-20 2014-11-19 苏州德宝凯迪新材料有限公司 Carbon fiber strengthened polypropylene composite material and preparation method thereof
CN104151732A (en) * 2014-08-18 2014-11-19 苏州市盛百威包装设备有限公司 Triallylamine film packaging material and preparation method thereof
CN104861283A (en) * 2015-03-31 2015-08-26 苏州市鼎立包装有限公司 Impact-resistant modified plastic hollow plate and preparation method thereof
CN104961941A (en) * 2015-06-30 2015-10-07 苏州洋杰电子有限公司 Preparation method for antistatic composite material
CN105646999A (en) * 2014-11-10 2016-06-08 合肥杰事杰新材料股份有限公司 Polypropylene composition and preparation method thereof
CN107531961A (en) * 2015-05-22 2018-01-02 博里利斯股份公司 Polypropylene carbon fibers composite
CN107531965A (en) * 2015-05-22 2018-01-02 博里利斯股份公司 The carbon fiber packing material of low-density
CN108192207A (en) * 2017-12-28 2018-06-22 聚威工程塑料(上海)有限公司 A kind of high-performance conductive PP composite material and preparation method
CN110406128A (en) * 2019-08-12 2019-11-05 杭州新明包装有限公司 A kind of hollow plate on-line continuous laminating adhesive production technology
CN113150441A (en) * 2021-04-14 2021-07-23 华南理工大学 Carbon fiber reinforced polypropylene foam composite material and preparation method thereof
CN114262482A (en) * 2021-12-30 2022-04-01 江苏松上科技有限公司 Impact-resistant polypropylene material for automobile ceiling and production method thereof

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CN1569931A (en) * 2004-04-26 2005-01-26 东莞市正昱塑胶五金有限公司 Process for the preparation of fiber reinforced thermoplastics
CN1906245A (en) * 2004-02-03 2007-01-31 普瑞曼聚合物有限公司 Fiber-reinforced polyolefin resin composition and molding thereof
CN101857689A (en) * 2010-02-26 2010-10-13 广东联塑科技实业有限公司 A material for preparing high thermal conductivity plastic pipes

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Publication number Priority date Publication date Assignee Title
CN1906245A (en) * 2004-02-03 2007-01-31 普瑞曼聚合物有限公司 Fiber-reinforced polyolefin resin composition and molding thereof
CN1569931A (en) * 2004-04-26 2005-01-26 东莞市正昱塑胶五金有限公司 Process for the preparation of fiber reinforced thermoplastics
CN101857689A (en) * 2010-02-26 2010-10-13 广东联塑科技实业有限公司 A material for preparing high thermal conductivity plastic pipes

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952309B (en) * 2012-12-12 2014-11-26 中国科学院长春应用化学研究所 Improved short carbon fiber reinforced polyolefin composite material and preparation method thereof
CN102952309A (en) * 2012-12-12 2013-03-06 中国科学院长春应用化学研究所 Improved short carbon fiber reinforced polyolefin composite material and preparation method thereof
CN103435904A (en) * 2013-09-18 2013-12-11 中国石油化工股份有限公司 Antistatic high-rigidity rotational-moulded polyethylene composition and preparation method thereof
CN103601965A (en) * 2013-10-23 2014-02-26 安徽冠泓塑业有限公司 Composition for preparing plastic barrels
CN103601965B (en) * 2013-10-23 2015-10-28 安徽冠泓塑业有限公司 A kind of for the preparation of plastic tank composition
CN104151732A (en) * 2014-08-18 2014-11-19 苏州市盛百威包装设备有限公司 Triallylamine film packaging material and preparation method thereof
CN104151732B (en) * 2014-08-18 2016-04-27 苏州市盛百威包装设备有限公司 A kind of triallylamine film packing material and preparation method thereof
CN104151708B (en) * 2014-08-20 2016-09-21 苏州德宝凯迪新材料有限公司 A kind of fibre reinforced PP composite material and preparation method thereof
CN104151708A (en) * 2014-08-20 2014-11-19 苏州德宝凯迪新材料有限公司 Carbon fiber strengthened polypropylene composite material and preparation method thereof
CN105646999A (en) * 2014-11-10 2016-06-08 合肥杰事杰新材料股份有限公司 Polypropylene composition and preparation method thereof
CN104861283A (en) * 2015-03-31 2015-08-26 苏州市鼎立包装有限公司 Impact-resistant modified plastic hollow plate and preparation method thereof
CN107531961A (en) * 2015-05-22 2018-01-02 博里利斯股份公司 Polypropylene carbon fibers composite
CN107531965A (en) * 2015-05-22 2018-01-02 博里利斯股份公司 The carbon fiber packing material of low-density
US10717832B2 (en) 2015-05-22 2020-07-21 Borealis Ag Low density carbon fibers filled materials
CN104961941A (en) * 2015-06-30 2015-10-07 苏州洋杰电子有限公司 Preparation method for antistatic composite material
CN108192207A (en) * 2017-12-28 2018-06-22 聚威工程塑料(上海)有限公司 A kind of high-performance conductive PP composite material and preparation method
CN110406128A (en) * 2019-08-12 2019-11-05 杭州新明包装有限公司 A kind of hollow plate on-line continuous laminating adhesive production technology
CN113150441A (en) * 2021-04-14 2021-07-23 华南理工大学 Carbon fiber reinforced polypropylene foam composite material and preparation method thereof
CN114262482A (en) * 2021-12-30 2022-04-01 江苏松上科技有限公司 Impact-resistant polypropylene material for automobile ceiling and production method thereof

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Application publication date: 20120725