CN107418075A - A kind of PS composites and preparation method thereof - Google Patents

A kind of PS composites and preparation method thereof Download PDF

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CN107418075A
CN107418075A CN201710474358.1A CN201710474358A CN107418075A CN 107418075 A CN107418075 A CN 107418075A CN 201710474358 A CN201710474358 A CN 201710474358A CN 107418075 A CN107418075 A CN 107418075A
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temperature
area
parts
composites
ppta fibers
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刘凯
胡隽隽
王添琪
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C2948/9258—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
    • B29C2948/92704—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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/017—Additives being an antistatic agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
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  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The present invention relates to a kind of PS composites and preparation method thereof, composite is composed of the following components by weight：PS is 80 parts 100 parts；PPTA fibers are 20 parts 30 parts；Antistatic master granule is 10 parts 16 parts；Antioxidant is 0.1 part 0.5 part；Lubricant is 0.1 part 0.3 part；Fanglun 1414's (PPTA fibers) is the PPTA fibers after peroxocarbonate coupling agent treatment.PPTA fibers in the application have three effects：It can be built into " network ", and antistatic master granule is readily formed conductive network with " network ", further strengthen the antistatic property of PS composites；It can lift the tensile strength, bending strength, impact strength of PS composites；PPTA fibers have certain anti-flammability in itself, and its addition improves the fire resistance of PS composites.

Description

A kind of PS composites and preparation method thereof
Technical field
The invention belongs to polymeric material field, particularly relates to a kind of PS composites and preparation method thereof.
Background technology
Polystyrene (PS) have it is light, nontoxic, odorless, chemical stability is good, and does not dissolve in common solvent at normal temperatures, The advantages that water imbibition is small.
Although PS combination property is very excellent, in some special application fields, to mechanical property, antistatic behaviour Energy, fire resistance have very high requirement, and common PS can not meet this requirement, and this just greatly limit the application of PS composites Scope.
The deficiency of PS materials how is improved, is the problem that this area research staff endeavours exploitation always.
The content of the invention
It is an object of the invention to provide a kind of PS composites and preparation method thereof, are existed with solving PS materials in the prior art The problem of mechanical property, antistatic property and fire resistance deficiency.
The present invention is achieved by the following technical solutions：
A kind of PS composites, it is composed of the following components by weight：
The PPTA fibers are the PPTA fibers after peroxocarbonate coupling agent treatment.
The carbonic ester coupling agent is AC-201.
The preparation method of the antistatic master granule is：
1) a certain amount of PEEA, EPDM-g-MAH and PS are weighed；
2) each material input homogenizer in step 1) is mixed, it is to be mixed uniform, it is put into double screw extruder and squeezes Go out to be granulated, drying both obtains antistatic master granule.
The mass ratio of PEEA, EPDM-g-MAH and PS in step 1) are (2-6)：(20-30)：(200-400).
Homogenizer rotating speed described in step 2) is 280~320r/min, and described double screw extruder includes suitable Six humidity provinces of secondary arrangement, 160~180 DEG C of area's temperature, two 180~220 DEG C of area's temperature, three 180~220 DEG C of area's temperature, Four 180~220 DEG C of area's temperature, five 180~220 DEG C of area's temperature, six 180~220 DEG C of area's temperature, 180~220 DEG C of head temperature； 180~260r/min of screw speed.
The antioxidant is three (2,4- di-t-butyl) phenyl-phosphites, four [β-(3,5- di-tert-butyl-hydroxy phenyls) Propionic acid] pentaerythritol ester or 1,3,5- trimethyls -2,4, one kind or several in 6- (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene The mixing of kind.
The lubricant is the one or more in zinc stearate, calcium stearate or potassium stearate.
A kind of preparation method of PS composites, comprises the following steps：
1) weigh 80 parts -100 parts PS, 10 parts of -16 parts of antistatic master granules, 0.1 part of -0.5 part of antioxidant, 0.1 part -0.3 Part mix lubricant simultaneously stirs, and obtains compound；
2) compound obtained in step 1) is added from extruder main feeder, 20 parts of -30 parts of PPTA fibers are fed by side Glassware is individually added into extruding pelletization, that is, obtains PS composites.
Preferably, the step 2) is specially：
The compound obtained in step 1) is put into extruding pelletization in the hopper of double screw extruder, wherein, it is described double Screw extruder includes six humidity provinces sequentially arranged, 160~180 DEG C of area's temperature, two 210~230 DEG C of area's temperature, 3rd area 210~230 DEG C of temperature, four 210~230 DEG C of area's temperature, five 210~230 DEG C of area's temperature, six 210~230 DEG C of area's temperature, head 210~230 DEG C of temperature, 200~280r/min of screw speed.
The beneficial effects of the invention are as follows：
1st, the addition of antistatic master granule is advantageous to be lifted the antistatic property of PS composites.
2nd, antistatic master granule made from the application can be preferably dispersed in PS matrixes compared with general antistatic additive, resisted Antistatic property is also strengthened.
3rd, the PPTA fibers in the application have three effects：1) it can be built into " network ", antistatic master granule and " net Network " is readily formed conductive network, further strengthens the antistatic property of PS composites.2) it can lift PS composites Tensile strength, bending strength, impact strength.3) PPTA fibers have certain anti-flammability in itself, and its addition improves The fire resistance of PS composites.
Embodiment
Describe technical scheme in detail by the following examples, following embodiment be only it is exemplary, only Explanation and illustration technical scheme can be used for, and be not to be construed as the limitation to technical solution of the present invention.
Raw material used is as follows in embodiments herein：
PS (model 350), Taiwan state are tall；PPTA fibers (model Kevlar), Dupont；PEEA, laboratory self-control； EPDM-g-MAH, Jinan Jin Hui Chemical Co., Ltd.s；Antioxidant (model Irganox168, Irganox1010, Irganox1330), Switzerland's Ciba；Zinc stearate, Chinese reform material；Calcium stearate, Wuhan Wanrong science and technology；Potassium stearate, Nation's promise chemical industry.
Tester used in embodiments herein is as follows：
ZSK30 type double screw extruders, German W＆P companies；JL-1000 type tensile testing machines, the wide just experiment instrument in Guangzhou Device company produces；HTL900-T-5B type injection (mo(u)lding) machines, the production of Hai Tai plastics machineries Co., Ltd；XCJ-500 type shock-testings Machine, the production of Chengde testing machine factory；QT-1196 type tester for elongation, Dongguan City Gao Tai detecting instruments Co., Ltd；QD-GJS- B12K type homogenizers, Beijing perseverance Order instrument and meter Co., Ltd.
The application provides a kind of PS composites, composed of the following components by weight：
PPTA fibers are the PPTA fibers after peroxocarbonate coupling agent AC-201 processing.
The preparation method of antistatic master granule is：
1) a certain amount of polyether ester amides (PEEA), EPDM-g-MAH and PS are weighed；
2) each material input homogenizer in step 1) is mixed, it is to be mixed uniform, it is put into double screw extruder and squeezes Go out to be granulated, drying both obtains antistatic master granule.
The mass ratio of PEEA, EPDM-g-MAH and PS in step 1) are (2-6)：(20-30)：(200-400).
Homogenizer rotating speed in step 2) is 280~320r/min, double screw extruder include sequentially arranging Six humidity provinces, 160~180 DEG C of area's temperature, two 180~220 DEG C of area's temperature, three 180~220 DEG C of area's temperature, four area's temperature 180~220 DEG C, five 180~220 DEG C of area's temperature, six 180~220 DEG C of area's temperature, 180~220 DEG C of head temperature；Screw speed 180~260r/min.
Antioxidant for BASF AG three (2,4- di-t-butyls) phenyl-phosphites (abbreviation Irganox168), four [β- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (abbreviation Irganox1010) or 1,3,5- trimethyls -2,4, One or more of mixing in 6- (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene (abbreviation Irganox1330).
Lubricant is the one or more in zinc stearate, calcium stearate or potassium stearate.
A kind of preparation method of PS composites, comprises the following steps：
1) weigh 80 parts -100 parts PS, 10 parts of -16 parts of antistatic master granules, 0.1 part of -0.5 part of antioxidant, 0.1 part -0.3 Part mix lubricant simultaneously stirs, and obtains compound；
2) compound obtained in step 1) is added from extruder main feeder, 20 parts of -30 parts of PPTA fibers are fed by side Glassware is individually added into extruding pelletization, that is, obtains PS composites.
Preferably, step 2) is specially：
The compound obtained in step 1) is put into extruding pelletization in the hopper of double screw extruder, wherein, twin-screw Extruder includes six humidity provinces sequentially arranged, 160~180 DEG C of area's temperature, two 210~230 DEG C of area's temperature, three area's temperature 210~230 DEG C, four 210~230 DEG C of area's temperature, five 210~230 DEG C of area's temperature, six 210~230 DEG C of area's temperature, head temperature 210~230 DEG C, 200~280r/min of screw speed.
Embodiment 1
1) 80 parts of PS, 20 parts of PPTA fibers, 10 parts of antistatic master granules, 0.1 part of Irganox168,0.1 part of stearic acid are weighed Zinc is mixed and stirred for uniformly, obtaining compound；
2) the compound extruding pelletization that will be obtained in step 1), that is, obtain PS composite P1, wherein PPTA fibers be from Side feeding is individually added into.
Wherein each area's temperature of double screw extruder and screw speed are respectively：One 160 DEG C of area's temperature, two 210 DEG C of area's temperature, Three 210 DEG C of area's temperature, four 210 DEG C of area's temperature, five 210 DEG C of area's temperature, six 210 DEG C of area's temperature, 210 DEG C of head temperature, screw rod turn Fast 200r/min.
Embodiment 2
1) weigh 100 parts of PS, 30 parts of PPTA fibers, 16 parts of antistatic master granules, 0.1 part of Irganox168,0.2 part Irganox1010,0.2 part of Irganox1330,0.15 part of odium stearate, 0.15 part of zinc stearate are mixed and stirred for uniformly, obtaining Compound；
2) the compound extruding pelletization that will be obtained in step 1), that is, obtain PS composite P2, wherein PPTA fibers be from Side feeding is individually added into.
Wherein each area's temperature of double screw extruder and screw speed are respectively：One 180 DEG C of area's temperature, two 230 DEG C of area's temperature, Three 230 DEG C of area's temperature, four 230 DEG C of area's temperature, five 230 DEG C of area's temperature, six 230 DEG C of area's temperature, 230 DEG C of head temperature, screw rod turn Fast 280r/min.
Embodiment 3
1) weigh 90 parts of PS, 25 parts of PPTA fibers, 14 parts of antistatic master granules, 0.1 part of Irganox168,0.2 part Irganox1010,0.1 part of odium stearate, 0.1 part of zinc stearate are mixed and stirred for uniformly, obtaining compound；
2) the compound extruding pelletization that will be obtained in step 1), that is, obtain PS composite P3, wherein PPTA fibers be from Side feeding is individually added into.
Wherein each area's temperature of double screw extruder and screw speed are respectively：One 170 DEG C of area's temperature, two 220 DEG C of area's temperature, Three 220 DEG C of area's temperature, four 220 DEG C of area's temperature, five 220 DEG C of area's temperature, six 220 DEG C of area's temperature, 220 DEG C of head temperature；Screw rod turns Fast 240r/min.
Embodiment 4
1) weigh 95 parts of PS, 28 parts of PPTA fibers, 15 parts of antistatic master granules, 0.1 part of Irganox1010,0.2 part Irganox1330,0.1 part of calcium stearate, 0.1 part of zinc stearate are mixed and stirred for uniformly, obtaining compound；
2) the compound extruding pelletization that will be obtained in step 1), that is, obtain PS composite P4, wherein PPTA fibers be from Side feeding is individually added into.
Wherein each area's temperature of double screw extruder and screw speed are respectively：One 165 DEG C of area's temperature, two 215 DEG C of area's temperature, Three 215 DEG C of area's temperature, four 215 DEG C of area's temperature, five 215 DEG C of area's temperature, six 215 DEG C of area's temperature, 215 DEG C of head temperature；Screw rod turns Fast 260r/min.
Embodiment 5
1) weigh 100 parts of PS, 22 parts of PPTA fibers, 12 parts of antistatic master granules, 0.2 part of Irganox1010,0.2 part Irganox1330,0.1 part of calcium stearate, 0.2 part of zinc stearate are mixed and stirred for uniformly, obtaining compound；
2) the compound extruding pelletization that will be obtained in step 1), that is, obtain PS composite P5, wherein PPTA fibers be from Side feeding is individually added into.
Wherein each area's temperature of double screw extruder and screw speed are respectively：One 165 DEG C of area's temperature, two 225 DEG C of area's temperature, Three 225 DEG C of area's temperature, four 225 DEG C of area's temperature, five 225 DEG C of area's temperature, six 225 DEG C of area's temperature, 225 DEG C of head temperature；Screw rod turns Fast 255r/min.
Comparative example 1
1) weigh 80 parts of PS, 0.1 part of Irganox1010,0.2 part of Irganox168,0.1 part of calcium stearate, 0.2 part Zinc stearate is mixed and stirred for uniformly, obtaining compound；
2) the compound extruding pelletization that will be obtained in step 1), that is, PS composites D1 is obtained.
Wherein each area's temperature of double screw extruder and screw speed are respectively：One 155 DEG C of area's temperature, two 215 DEG C of area's temperature, Three 215 DEG C of area's temperature, four 215 DEG C of area's temperature, five 215 DEG C of area's temperature, six 215 DEG C of area's temperature, 215 DEG C of head temperature；Screw rod turns Fast 215r/min.
Performance test：
PS composites prepared by above-described embodiment 1-5 and comparative example 1 are made into batten with injection machine to test, test data Such as following table：
As can be seen from the above table, it can also be seen that embodiment 1-5 mechanical property, antistatic behaviour and fire resistance from table Comparative example 1 will be better than, this extends the application field of PS composites.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And deformation, the scope of the present invention are extremely equally limited by appended claims.

Claims (9)

  1. A kind of 1. PS composites, it is characterised in that：It is composed of the following components by weight：
    The PPTA fibers are the PPTA fibers after peroxocarbonate coupling agent treatment.
  2. 2. PS composites according to claim 1, it is characterised in that：The carbonic ester coupling agent is AC-201.
  3. 3. PS composites according to claim 1, it is characterised in that：The preparation method of the antistatic master granule is：
    1) a certain amount of PEEA, EPDM-g-MAH and PS are weighed；
    2) each material input homogenizer in step 1) is mixed, it is to be mixed uniform, it is put into extrusion in double screw extruder and makes Grain, drying both obtain antistatic master granule.
  4. 4. PS composites according to claim 3, it is characterised in that：PEEA, EPDM-g-MAH and PS in step 1) Mass ratio be (2-6)：(20-30)：(200-400).
  5. 5. PS composites according to claim 3, it is characterised in that：Homogenizer rotating speed described in step 2) is 280~320r/min, described double screw extruder include six humidity provinces sequentially arranging, 160~180 DEG C of area's temperature, Two 180~220 DEG C of area's temperature, three 180~220 DEG C of area's temperature, four 180~220 DEG C of area's temperature, five 180~220 DEG C of area's temperature, Six 180~220 DEG C of area's temperature, 180~220 DEG C of head temperature；180~260r/min of screw speed.
  6. 6. PS composites according to claim 1, it is characterised in that：The antioxidant is that three (2,4- di-t-butyls) are sub- Phenyl phosphate, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters or 1,3,5- trimethyls -2,4,6- One or more of mixing in (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene.
  7. 7. PS composites according to claim 1, it is characterised in that：The lubricant is zinc stearate, calcium stearate Or the one or more in potassium stearate.
  8. A kind of 8. preparation method of PS composites, it is characterised in that：Comprise the following steps：
    1) weigh 80 parts -100 parts PS, 10 parts of -16 parts of antistatic master granules, 0.1 part of -0.5 part of antioxidant, 0.1 part -0.3 part profit Lubrication prescription is mixed and stirred for uniformly, obtaining compound；
    2) compound obtained in step 1) is added from extruder main feeder, 20 parts of -30 parts of PPTA fibers are by side feeder Extruding pelletization is individually added into, that is, obtains PS composites.
  9. 9. the preparation method of PS composites according to claim 8, it is characterised in that：The step 2) is specially：
    The compound obtained in step 1) is put into extruding pelletization in the hopper of double screw extruder, wherein, the twin-screw Extruder includes six humidity provinces sequentially arranged, 160~180 DEG C of area's temperature, two 210~230 DEG C of area's temperature, three area's temperature 210~230 DEG C, four 210~230 DEG C of area's temperature, five 210~230 DEG C of area's temperature, six 210~230 DEG C of area's temperature, head temperature 210~230 DEG C, 200~280r/min of screw speed.
CN201710474358.1A 2017-06-21 2017-06-21 A kind of PS composites and preparation method thereof Pending CN107418075A (en)

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Publication number Priority date Publication date Assignee Title
CN109666229A (en) * 2018-11-27 2019-04-23 吴雅萍 A kind of PS composite material

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CN102250481A (en) * 2011-05-25 2011-11-23 上海树普新材料科技有限公司 Plastic with high thermal conductivity and preparation method thereof
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Application publication date: 20171201