CN110028733A - A kind of precision instrument is packed for antistatic EPP particle - Google Patents

A kind of precision instrument is packed for antistatic EPP particle Download PDF

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Publication number
CN110028733A
CN110028733A CN201910294037.2A CN201910294037A CN110028733A CN 110028733 A CN110028733 A CN 110028733A CN 201910294037 A CN201910294037 A CN 201910294037A CN 110028733 A CN110028733 A CN 110028733A
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Prior art keywords
parts
antistatic
agent
packed
precision instrument
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Pending
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CN201910294037.2A
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Chinese (zh)
Inventor
陈千峰
陈千勇
汤启进
周良永
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China Guangzhou Nuclear Bloomberg New Material (suzhou) Co Ltd
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China Guangzhou Nuclear Bloomberg New Material (suzhou) Co Ltd
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Priority to CN201910294037.2A priority Critical patent/CN110028733A/en
Publication of CN110028733A publication Critical patent/CN110028733A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0028—Use of organic additives containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K2201/011—Nanostructured additives
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to the preparation methods of polypropylene foamed particles, it provides a kind of precision instrument and is packed for antistatic EPP particle, including following parts by weight component: 50-70 parts of acrylic resin, 20-26 parts of high density polyethylene (HDPE), 14-18 parts of kaolinite, 2-6 parts of silane coupling agent, 4-8 parts of foaming agent, 3-6 parts of lubricant, 2-8 parts of antioxidant, 2-8 parts of antistatic agent, 1-3 parts of antibacterial agent, antistatic EPP particle prepared by the present invention has excellent mechanical strength, high use temperature, excellent machinability, the advantages that being easily recycled, inventive article has very excellent antidetonation energy absorption performance, recovery rate is high after deformation, good heat resistance, chemicals-resistant, oil resistivity and thermal insulation.

Description

A kind of precision instrument is packed for antistatic EPP particle
Technical field
The present invention relates to the preparation methods of polypropylene foamed particles, and in particular to a kind of precision instrument is packed for antistatic EPP particle.
Background technique
Foamed plastics has many advantages, such as that light, heat-insulated, sound insulation, buffering, specific strength are high, cheap, thus packing business, It is used widely in the fields such as industry, agricultural, transportation, war industry, space flight fourth industry and daily necessities.The U.S. in recent years Market is to the demand of foamed plastics with annual 4.2% speed sustainable growth.China's foam plastic since the 1990s The development of material is also very rapid.Foamed plastic can be as the construction material kept the temperature, soundproof effect is good, polypropylene plastics foaming material Material is a kind of highly crystalline type polymer/gas recombination material of performance brilliance, is become with its unique and superior performance and is increased at present Long most fast environment-friendly novel resistance to compression buffers heat-barrier material.EPP product restores after having very excellent antidetonation energy absorption performance, deformation Rate height, good heat resistance, chemicals-resistant, oil resistivity and thermal insulation, in addition, its light weight, can be greatly reduced Item Weight. Due to the low heat conductivity for the EPP that foams, it is uneven that low water vapo(u)r transmission, high-energy absorption and compressibility are adapted to filling The gap on smooth surface.
Summary of the invention
Technical problems to be solved: the purpose of the present invention is to solve deficiencies in the prior art, provide a kind of precision Instrumentation package antistatic EPP particle.
Technical solution:
The present invention provides a kind of precision instruments to be packed for antistatic EPP particle, including following parts by weight component:
50-70 parts of acrylic resin,
20-26 parts of high density polyethylene (HDPE),
14-18 parts of kaolinite,
2-6 parts of silane coupling agent,
4-8 parts of foaming agent,
3-6 parts of lubricant,
2-8 parts of antioxidant,
2-8 parts of antistatic agent,
1-3 parts of antibacterial agent.
Preferably, the foaming agent is that butane and pentane are mixed according to weight ratio 2:1.
Preferably, the lubricant is that vinyl distearyl amide and magnesium stearate are mixed according to weight ratio 1:1.
Preferably, the antibacterial agent is nano-titanium dioxide.
Preferably, the antistatic agent is ethoxy fatty amine.
The present invention also provides the preparation methods that a kind of precision instrument is packed for antistatic EPP particle, comprising the following steps:
Step 1: by weight, being added to double screw extruder for 50-70 parts and high density polyethylene (HDPE) 20-26 parts of acrylic resin Middle extrusion granulation, obtains pellet；
Step 2: by pellet obtained in step 1 and kaolinite 14-18 parts, 2-6 parts of silane coupling agent, 4-8 parts of foaming agent, profit 3-6 parts of lubrication prescription, 2-8 parts of antioxidant, 2-8 parts of antistatic agent and 1-3 parts of antibacterial agent are placed in reaction kettle and are uniformly mixed for 80-90 DEG C To antistatic EPP particle.
Preferably, the temperature of extrusion granulation is 70-80 DEG C in step 1.
The utility model has the advantages that
(1) antistatic EPP particle prepared by the present invention have excellent mechanical strength, it is high using temperature, it is excellent processable Property, the advantages that being easily recycled；
(2) inventive article has recovery rate height, good heat resistance, resistance toization after very excellent antidetonation energy absorption performance, deformation Product, oil resistivity and thermal insulation.
Specific embodiment
Embodiment 1
Step 1: by weight, double spiral shells will be added to after 70 parts of acrylic resin and 20 parts of 60 DEG C of mixing 30min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 18 parts of kaolinite, 2 parts of silane coupling agent, 8 parts of foaming agent, lubricant 3 Part, 8 parts of irgasfos 168,2 parts of ethoxy fatty amine and 3 parts of nano-titanium dioxide, which are placed in reaction kettle 80 DEG C and are uniformly mixed, to be obtained Antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl distearyl Amine and magnesium stearate are mixed according to weight ratio 1:1.
Embodiment 2
Step 1: by weight, double spiral shells will be added to after 50 parts of acrylic resin and 26 parts of 50 DEG C of mixing 50min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 14 parts of kaolinite, 6 parts of silane coupling agent, 4 parts of foaming agent, lubricant 6 Part, 2 parts of irgasfos 168,8 parts of ethoxy fatty amine and 1 part of nano-titanium dioxide, which are placed in reaction kettle 90 DEG C and are uniformly mixed, to be obtained Antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl distearyl Amine and magnesium stearate are mixed according to weight ratio 1:1.
Embodiment 3
Step 1: by weight, double spiral shells will be added to after 68 parts of acrylic resin and 21 parts of 58 DEG C of mixing 32min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 17 parts of kaolinite, 3 parts of silane coupling agent, 7.5 parts of foaming agent, lubricant 3.5 parts, 7 parts of irgasfos 168,2.5 parts of ethoxy fatty amine and 2.8 parts of nano-titanium dioxide are placed in 82 DEG C of mixing in reaction kettle Uniformly obtain antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl Distearyl amide and magnesium stearate are mixed according to weight ratio 1:1.
Embodiment 4
Step 1: by weight, double spiral shells will be added to after 52 parts of acrylic resin and 25 parts of 52 DEG C of mixing 48min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 15 parts of kaolinite, 5 parts of silane coupling agent, 4.5 parts of foaming agent, lubricant 5.5 parts, 3 parts of irgasfos 168,7.5 parts of ethoxy fatty amine and 1.2 parts of nano-titanium dioxide are placed in 88 DEG C of mixing in reaction kettle Uniformly obtain antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl Distearyl amide and magnesium stearate are mixed according to weight ratio 1:1.
Embodiment 5
Step 1: by weight, double spiral shells will be added to after 66 parts of acrylic resin and 22 parts of 56 DEG C of mixing 34min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 16.5 parts of kaolinite, 3.5 parts of silane coupling agent, 6 parts of foaming agent, lubrication It is equal that 4 parts of agent, 4 parts of irgasfos 168,6 parts of ethoxy fatty amine and 1.5 parts of nano-titanium dioxide are placed in 86 DEG C of mixing in reaction kettle It is even to obtain antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl two Stearmide and magnesium stearate are mixed according to weight ratio 1:1.
Embodiment 6
Step 1: by weight, double spiral shells will be added to after 54 parts of acrylic resin and 24 parts of 54 DEG C of mixing 46min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 15.5 parts of kaolinite, 4.5 parts of silane coupling agent, 5 parts of foaming agent, lubrication It is equal that 4 parts of agent, 6 parts of irgasfos 168,3 parts of ethoxy fatty amine and 2.5 parts of nano-titanium dioxide are placed in 84 DEG C of mixing in reaction kettle It is even to obtain antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl two Stearmide and magnesium stearate are mixed according to weight ratio 1:1.
Embodiment 7
Step 1: by weight, double spiral shells will be added to after 60 parts of acrylic resin and 23 parts of 55 DEG C of mixing 40min of high density polyethylene (HDPE) Extrusion granulation in bar extruder, obtains pellet, and the temperature of extrusion granulation is 70-80 DEG C；
Step 2: by pellet obtained in step 1 and 16 parts of kaolinite, 4 parts of silane coupling agent, 5.5 parts of foaming agent, lubricant 4 Part, 5 parts of irgasfos 168,5 parts of ethoxy fatty amine and 2 parts of nano-titanium dioxide, which are placed in reaction kettle 85 DEG C and are uniformly mixed, to be obtained Antistatic EPP particle；Foaming agent is that butane and pentane are mixed according to weight ratio 2:1, and lubricant is vinyl distearyl Amine and magnesium stearate are mixed according to weight ratio 1:1.

Claims (7)

1. a kind of precision instrument is packed for antistatic EPP particle, which is characterized in that including following parts by weight component:
50-70 parts of acrylic resin,
20-26 parts of high density polyethylene (HDPE),
14-18 parts of kaolinite,
2-6 parts of silane coupling agent,
4-8 parts of foaming agent,
3-6 parts of lubricant,
2-8 parts of antioxidant,
2-8 parts of antistatic agent,
1-3 parts of antibacterial agent.
2. a kind of precision instrument according to claim 1 is packed for antistatic EPP particle, which is characterized in that the foaming Agent is that butane and pentane are mixed according to weight ratio 2:1.
3. a kind of precision instrument according to claim 1 is packed for antistatic EPP particle, which is characterized in that the lubrication Agent is that vinyl distearyl amide and magnesium stearate are mixed according to weight ratio 1:1.
4. a kind of precision instrument according to claim 1 is packed for antistatic EPP particle, which is characterized in that the antibacterial Agent is nano-titanium dioxide.
5. a kind of precision instrument according to claim 1 is packed for antistatic EPP particle, which is characterized in that it is described resist it is quiet Electric agent is ethoxy fatty amine.
6. the preparation method that a kind of precision instrument is packed for antistatic EPP particle, which comprises the following steps:
Step 1: by weight, being added to double screw extruder for 50-70 parts and high density polyethylene (HDPE) 20-26 parts of acrylic resin Middle extrusion granulation, obtains pellet；
Step 2: by pellet obtained in step 1 and kaolinite 14-18 parts, 2-6 parts of silane coupling agent, 4-8 parts of foaming agent, profit 3-6 parts of lubrication prescription, 2-8 parts of antioxidant, 2-8 parts of antistatic agent and 1-3 parts of antibacterial agent are placed in reaction kettle and are uniformly mixed for 80-90 DEG C To antistatic EPP particle.
7. a kind of precision instrument according to claim 5 is packed for the preparation method of antistatic EPP particle, feature exists In the temperature of extrusion granulation is 70-80 DEG C in step 1.
CN201910294037.2A 2019-04-12 2019-04-12 A kind of precision instrument is packed for antistatic EPP particle Pending CN110028733A (en)

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CN201910294037.2A CN110028733A (en) 2019-04-12 2019-04-12 A kind of precision instrument is packed for antistatic EPP particle

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CN201910294037.2A CN110028733A (en) 2019-04-12 2019-04-12 A kind of precision instrument is packed for antistatic EPP particle

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821326A (en) * 2007-10-11 2010-09-01 株式会社钟化 Pre-expanded polypropylene resin particle, and method for production thereof
CN106589580A (en) * 2016-11-21 2017-04-26 广东炜林纳新材料科技股份有限公司 Foamed polypropylene bead containing beta crystal and preparation method thereof
CN107163477A (en) * 2017-05-26 2017-09-15 合肥会通新材料有限公司 One kind can directly be molded chemical micro-foaming polypropylene composite material and preparation method thereof
US20180002505A1 (en) * 2016-07-04 2018-01-04 Hyundai Motor Company Polypropylene resin composition with improved foaming capability
CN108752741A (en) * 2018-05-28 2018-11-06 安徽顺彤包装材料有限公司 A kind of antistatic polypropylene packaging material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821326A (en) * 2007-10-11 2010-09-01 株式会社钟化 Pre-expanded polypropylene resin particle, and method for production thereof
US20180002505A1 (en) * 2016-07-04 2018-01-04 Hyundai Motor Company Polypropylene resin composition with improved foaming capability
CN106589580A (en) * 2016-11-21 2017-04-26 广东炜林纳新材料科技股份有限公司 Foamed polypropylene bead containing beta crystal and preparation method thereof
CN107163477A (en) * 2017-05-26 2017-09-15 合肥会通新材料有限公司 One kind can directly be molded chemical micro-foaming polypropylene composite material and preparation method thereof
CN108752741A (en) * 2018-05-28 2018-11-06 安徽顺彤包装材料有限公司 A kind of antistatic polypropylene packaging material and preparation method thereof

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