CN102532711A - Quickly-molded polypropylene composite material and preparation method - Google Patents

Quickly-molded polypropylene composite material and preparation method Download PDF

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Publication number
CN102532711A
CN102532711A CN2011104527299A CN201110452729A CN102532711A CN 102532711 A CN102532711 A CN 102532711A CN 2011104527299 A CN2011104527299 A CN 2011104527299A CN 201110452729 A CN201110452729 A CN 201110452729A CN 102532711 A CN102532711 A CN 102532711A
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China
Prior art keywords
polypropylene matrix
fast forming
thermal conducting
forming polypropylene
vestolen
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Inventor
翁永华
汪理文
丁贤麟
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RUNJIA ENGINEERING PLASTIC Co Ltd SUZHOU INDUSTRY ZONE
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RUNJIA ENGINEERING PLASTIC Co Ltd SUZHOU INDUSTRY ZONE
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Priority to CN2011104527299A priority Critical patent/CN102532711A/en
Publication of CN102532711A publication Critical patent/CN102532711A/en
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    • 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
    • B29C2948/92514Pressure
    • 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
    • B29C2948/92561Time, e.g. start, termination, duration or interruption
    • 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

Abstract

The invention belongs to the field of plastic materials, and particularly relates to a quickly-molded polypropylene composite material and a preparation method of the composite material. The composite material is prepared from the following raw materials according to a weight ratio: 60-86% of polypropylene, 5-20% of filler, 5-25% of toughener, 0.3-0.5% of nucleating agent, 2-5% of heat-conducting agent, 0.1-1.0% of heat stabilizer, and 0.1-1.0% of antioxidant, wherein the nucleating agent is beta-crystal-form nucleating agent Y-619; and the heat-conducting agent is a coated type nano thermal conduction material, which is composed of a common fine ore filler layer and a nano thermal conduction material layer coated on the surface of the fine ore filler layer. According to the invention, the nucleating agent and the heat-conducting agent are added to a base formula of a polypropylene material, the nucleating agent is used for increasing PP (polypropylene) crystallization temperature and crystallization speed, and the heat-conducting agent is used for rapidly radiating heat generated during injection molding and shortening the cooling time, thus the molding rate of the polypropylene composite material is increased; and the preparation process is simple, the production efficiency is improved, the cost is lowered, and the physical mechanical performances of the prepared material are excellent.

Description

Fast forming polypropylene matrix material and preparation method
Technical field
The invention belongs to the plastic material field; Relate in particular to a kind of fast forming polypropylene matrix material and preparation method thereof, more specifically relate to a kind of through adding fast forming polypropylene matrix material and the preparation method that nucleator and thermal conducting agent obtain with the mode of accelerate crystallisation and quick conductive.
Background technology
Vestolen PP 7052 (PP) is one of development ground plastics variety the most rapidly in the plastics industry; Have that mechanical property is good, light specific gravity, nontoxic, be prone to processing, advantage such as corrosion-resistant; And raw material sources are wide, cheap, are used widely in fields such as household electrical appliances, automobile and packings.Vestolen PP 7052 field competition at present is very fierce, the mode that need seek to reduce cost.
At present; The mode that PP composite material reduces cost mainly contains adds filler, the feed back Vestolen PP 7052 of selecting economy or auxiliary agent etc., but filler selection and addition are limited, and filler must be selected according to needing targetedly of material; Can not select more economical filler simply; The addition of filler has specified range in addition, can not be too much or very few, otherwise can not satisfy the requirement of material property; And select economical feed back Vestolen PP 7052 or the risky property of auxiliary agent, the physicals of material, molded appearance, the smell total carbon maybe be defective.
Therefore be necessary to find out a kind of mode, not only keep material original excellent performance, do not receive the kind of additive in the material and the restriction of content simultaneously, the performance of material is more stable simultaneously, production cost is also lower.
Chinese patent CN200910191936.6 discloses high luster fast forming polypropylene and preparation method thereof, and it is to improve moulding speed through adding nucleator; Sinopec Qilu Branch Company 2008 has reported the rapid shaping PP of anti-warpage resin at " synthetic resins and plastics " magazine, and it also is to improve moulding speed through adding nucleator.Can produce a large amount of out-phase nucleus through in PP, adding nucleator, make the spherocrystal refinement, improve PP crystalline temperature; Accelerate crystallization speed simultaneously, thereby improve moulding speed, but in the practical application; Temperature is very high during injection moulding; And the PP thermal conductivity is little, and the heat of generation is difficult to leave fast, so moulding speed improves very unobvious.
In order to overcome above-mentioned defective; The present invention adopts the mode of enhancing productivity to reduce production costs, and specifically discloses a kind of New-type adjuvant, and this auxiliary agent makes the material basic physical properties keep intact; And moulding speed is very fast, and this is because this auxiliary agent improves thermal conductivity again on the basis of improving crystallization rate.
Summary of the invention
The objective of the invention is to overcome the problems referred to above, a kind of fast forming polypropylene matrix material is provided,, prepare a kind of fast forming polypropylene matrix material through adding nucleator and thermal conducting agent.Simultaneously, another object of the present invention also is to provide the preparation method of fast forming polypropylene material.
The present invention adds a kind of nucleator and thermal conducting agent in the basic components of polypropylene material, nucleator can produce a large amount of out-phase nucleus, makes the spherocrystal refinement, improves PP crystalline temperature, accelerates crystallization speed simultaneously; The heat that thermal conducting agent produces in the time of can be with injection moulding leaves rapidly, reduces cooling time, and both combinations have improved the moulding speed of material, thereby have made fast forming polypropylene.Nucleator and thermal conducting agent are to other characteristics of PP composite material, and like mechanical property, thermo-oxidative stability etc. can not exert an influence.
To achieve these goals, the technical scheme that the present invention adopted is: the fast forming polypropylene matrix material is characterized in that: be prepared into by following materials of weight proportions:
Vestolen PP 7052 60-86%;
Filler 5-20%;
Toughner 5-25%
Nucleator 0.3-0.5%;
Thermal conducting agent 2-5%;
Thermo-stabilizer 0.1-1.0%;
Oxidation inhibitor 0.1-1.0%.
Aforesaid fast forming polypropylene matrix material, said nucleator are beta crystal-type nucleater Y-619.
Aforesaid fast forming polypropylene matrix material, said thermal conducting agent are the cladding nanometer thermal conducting material, and the cladding nanometer thermal conducting material is made up of common mineral powder filling materials layer and the nanometer thermal conducting material layer that is coated on the mineral powder filling materials surface.Common breeze Mohs' hardness is less than 3, like talcum powder, lime carbonate, kaolin, Peng Run soil etc.
Aforesaid fast forming polypropylene matrix material, described nanometer thermal conducting material is nano level aluminium nitride AlN or SP 1.
Aforesaid fast forming polypropylene matrix material, said Vestolen PP 7052 are the different mobile homopolymerizations or the Vestolen PP 7052 of copolymerization.
Aforesaid fast forming polypropylene matrix material, for the Vestolen PP 7052 of copolymerization, comonomer is an ethene; Ethylene content is in the scope of 4-10mol%; Vestolen PP 7052 is under the temperature and pressure of 230 ℃ * 2.16kg, and melt flow rate(MFR) is 5-50g/10min, and that more common is 5-30g/10min.
Aforesaid fast forming polypropylene matrix material, said filler are one or more of talcum powder, lime carbonate, magnesium sulfate crystal whisker, wollastonite, and the packing material size scope is the 1-10 micron.
Aforesaid fast forming polypropylene matrix material, said toughner are rubber elastomer.
Aforesaid fast forming polypropylene matrix material, described rubber elastomer are POE or EPDM.
Prepare the method for aforesaid fast forming polypropylene matrix material, it is characterized in that: may further comprise the steps
(1) weighs raw material by weight ratio;
(2) raw material was done in super mixer mixed 3-5 minute;
(3) mixed raw material is placed dual-screw-stem machine,, make the matrix material that the enhancement type filler is filled through melt extruding granulation; Raw material is through a plurality of warm areas of dual-screw-stem machine, and extrusion temperature is 215~225 ℃, and the dual-screw-stem machine internal pressure is 12-18MPa, and raw material is 1-2 minute in the dual-screw-stem machine residence time.
The preparation method of aforesaid fast forming polypropylene matrix material, dual-screw-stem machine be divided into a plurality of warm areas, be followed successively by 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in 210~215, six districts, five districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts.
The present invention adds a kind of nucleator and thermal conducting agent in the basic components at polypropylene material, on the one hand, can produce a large amount of out-phase nucleus, makes the spherocrystal refinement, improves PP crystalline temperature, accelerates crystallization speed simultaneously; On the other hand, the heat that produces in the time of can be with injection moulding leaves rapidly, reduces cooling time, and the combination of this two aspect has improved the moulding speed of PP composite material; Preparation technology of the present invention is simple, improved production efficiency, reduced cost; The prepared fast forming polypropylene matrix material of the present invention is when improving moulding speed, and each item physical and mechanical property of material is excellent.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is done further explain.
The fast forming polypropylene matrix material is mixed with by following materials of weight proportions: (%)
Vestolen PP 7052 60-86;
Filler 5-20;
Toughner 5-25
Nucleator 0.3-0.5;
Thermal conducting agent 2-5;
Thermo-stabilizer DSTP 0.1-1.0;
Antioxidant 1010 0.1-1.0;
Oxidation inhibitor 168 0.1-0.5.
The material requirements of using: Vestolen PP 7052 is the different mobile homopolymerizations or the Vestolen PP 7052 of copolymerization; Consumption is 60-86%; Wherein the comonomer of co-polypropylene is common is ethene; Ethylene content in the scope of 4-10mol%, polyacrylic melt flow rate(MFR) (230 ℃ * 2.16kg) be 5-50g/10min, more commonly used is 5-30g/10min; Described filler is a talcum powder, and its particle size range is the 1-10 micron; Said nucleator is beta crystal-type nucleater Y-619, for sky, Yuyao plasticizing ltd produce; Said thermal conducting agent is the cladding nanometer thermal conducting material; Be that common mineral powder filling materials surface coats one deck nanometer thermal conducting material; Wherein the nanometer thermal conducting material refers to nano level aluminium nitride AlN AlN, SP 1 BN etc., and the Mohs' hardness of common breeze is less than 3, like talcum powder, lime carbonate, kaolin, Peng Run soil etc.; Toughner POE is that Tao Shi (DOW) company produces, and trade names are Engage 8842, and chemical name is the hot rubber of second; Antioxidant 1010 produces for Ciba company, and trade names are Irganox 1010, and chemical name is four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester; Oxidation inhibitor 168 produces for Ciba company, and trade names are Irgafos 168, and chemical name is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester; Thermo-stabilizer DSTP is that Britain ICE company produces, and trade names are Negonox DSTP, and chemical name is the thio-2 acid octadecyl ester.
Grand military nano material ltd buys from Xuzhou for nanometer thermal conducting material-aluminium nitride AlN, boron nitride nanometer material, with aluminium nitride/boron nitride material and mineral powder filling materials 1:4 mixing by weight proportion, realizes through the rotational shear of high speed shear dispersion machine; Concrete processing parameter is: rotating speed 1500-3000 rev/min; Temperature 80-150 ℃, pressure 3-8MPa, the residence time is 5-10 minute; Thereby make the cladding nanometer thermal conducting material, promptly make thermal conducting agent.
Embodiment is divided into three groups, and first group of embodiment discloses the concrete prescription and the preparation process of fast forming polypropylene matrix material of the present invention (having added thermal conducting agent and nucleator), and prescription is seen table 1 with the material properties test result.
Embodiment 1
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 60%, talcum powder 20%, POE 16%, nucleator 0.3%, thermal conducting agent 2.7%, thermo-stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 2
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 70%, talcum powder 6%, POE 20%, nucleator 0.3%, thermal conducting agent 2.7%, thermo-stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 3
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 75%, talcum powder 10%, POE 11%, nucleator 0.3%, thermal conducting agent 2.7%, thermo-stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 4
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 80%, talcum powder 5%, POE 11%, nucleator 0.3%, thermal conducting agent 2.7%, thermo-stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 5
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 85%, talcum powder 5%, POE 6%, nucleator 0.3%, thermal conducting agent 2.7%, thermo-stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
The thermal conducting agent of second group of embodiment is substituted by talcum powder, only discloses with nucleator, has not added the preparation process of the PP composite material of thermal conducting agent, and all the other prescription compositions and processing condition are the same with first group, and prescription and material properties test result see table 2.
The nucleator of the 3rd group of embodiment and thermal conducting agent are substituted by talcum powder; Disclose not with nucleator, do not added the preparation process of the PP composite material of thermal conducting agent; All the other prescription compositions and processing condition are the same with first group, and prescription is seen table 3 with the material properties test result.
Performance evaluation mode and implementation standard:
The particulate material that to accomplish granulation by above-mentioned three groups of embodiment in 90~100 ℃ convection oven dry 2~3 hours in advance, and then the particulate material that drying is good carries out the injection molding sample preparation on injection moulding machine.Sample testing environment: 23 ℃ of temperature, humidity 50%.
The tensile property test is undertaken by ISO 527-2, and specimen size is 150*10*4mm, and draw speed is 50mm/min; The bending property test is undertaken by ISO 178, and specimen size is 80*10*4mm, and rate of bending is 2mm/min, and span is 64mm; Simple beam impact strength is undertaken by ISO 179, and specimen size is 80*6*4mm, and notch depth is 1/3rd of a sample thickness; Heat-drawn wire is undertaken by ISO 75, and specimen size is 120*10*3.0mm, and load is 1.8MPa; The thermal-oxidative aging property of material is undertaken by ISO4577, and specimen size is 50*10*10mm, and probe temperature is 150 ℃; Tc records through differential scanning amount method; Molding time is that the door-plate that changes the popular PASSAT of money with injection moulding is the molding time of benchmark.
Comprehensive mechanical performance is passed judgment on through the numerical value of tensile strength, elongation at break, modulus in flexure, thermal denaturation temperature and the shock strength of test gained; The thermal-oxidative aging property of material is passed judgment on according to the heat oxygen aging resistance time length of measuring by standard: the time is long more, and the heatproof air aging performance of material is good more; The production efficiency of material is passed judgment on through molding time: molding time is short more, and production efficiency is high more.
The prescription of three groups of embodiment and material each item The performance test results are respectively shown 1-3 as follows:
Table 1: the prescription of first group of embodiment and material property table
The matrix material title Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5
Vestolen PP 7052 (%) 60 70 75 80 85
Talcum powder (%) 20 6 10 5 5
POE(%) 16 20 11 11 6
Nucleator (%) 0.3 0.3 0.3 0.3 0.3
Thermal conducting agent (%) 2.7 2.7 2.7 2.7 2.7
Oxidation inhibitor 168 (%) 0.2 0.2 0.1 0.2 0.2
Antioxidant 1010 (%) 0.3 0.1 0.1 0.3 0.3
Thermo-stabilizer DSTP (%) 0.5 0.7 0.7 0.5 0.5
Unnotched impact strength (kJ/m 2) Constantly Constantly Constantly Constantly Constantly
Notched Izod impact strength (kJ/m 2) 20.5 23 19 19.5 14.5
Tensile strength (MPa) 21 18.5 20 21 24
Elongation at break (%) 170 190 145 115 95
Flexural strength (MPa) 28.5 27 30.5 30 33
Modulus in flexure (MPa) 1450 1150 1600 1600 1700
Thermal-oxidative aging property (>;=500H) Qualified Qualified Qualified Qualified Qualified
Tc (℃) 135.3 133.6 134.9 133.1 130.6
Molding time (s) 42 45 45 47 50
Table 2: second group of Example formulations and material property table
The matrix material title Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5
Vestolen PP 7052 (%) 60 70 75 80 85
Talcum powder (%) 20 6 10 5 5
POE(%) 16 20 11 11 6
Nucleator (%) 0.3 0.3 0.3 0.3 0.3
Oxidation inhibitor 168 (%) 0.2 0.2 0.1 0.2 0.2
Antioxidant 1010 (%) 0.3 0.1 0.1 0.3 0.3
Thermo-stabilizer DSTP (%) 0.5 0.7 0.7 0.5 0.5
Unnotched impact strength (kJ/m 2) Constantly Constantly Constantly Constantly Constantly
Notched Izod impact strength (kJ/m 2) 21 24 19 19 15
Tensile strength (MPa) 20 18 20 21 25
Elongation at break (%) 190 200 130 115 80
Flexural strength (MPa) 28 27 30 30 33
Modulus in flexure (MPa) 1450 1200 1600 1550 1750
Thermal-oxidative aging property (>;=500H) Qualified Qualified Qualified Qualified Qualified
Tc (℃) 135.3 133.6 134.9 133.1 130.6
Molding time (s) 70 78 73 75 80
Table 3: the 3rd group of Example formulations and material property table
The matrix material title Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5
Vestolen PP 7052 (%) 60 70 75 80 85
Talcum powder (%) 20 6 10 5 5
POE(%) 16 20 11 11 6
Oxidation inhibitor 168 (%) 0.2 0.2 0.1 0.2 0.2
Antioxidant 1010 (%) 0.3 0.1 0.1 0.3 0.3
Thermo-stabilizer DSTP (%) 0.5 0.7 0.7 0.5 0.5
Unnotched impact strength (kJ/m 2) Constantly Constantly Constantly Constantly Constantly
Notched Izod impact strength (kJ/m 2) 20 24 17 18 12
Tensile strength (MPa) 18 16 19 20 23
Elongation at break (%) 180 200 110 110 80
Flexural strength (MPa) 27 26 29 29 32
Modulus in flexure (MPa) 1300 1100 1500 1500 1600
Thermal-oxidative aging property (>;=500H) Qualified Qualified Qualified Qualified Qualified
Tc (℃) 129.3 127.6 127.7 126.1 125.6
Molding time (s) 80 86 82 86 90
Table 1 is prescription and the The performance test results that has added the PP composite material of nucleator and thermal conducting agent; Table 2 is prescription and the material properties test result who has added nucleator, do not added the PP composite material of thermal conducting agent; Table 3 is not for the prescription and the material properties test result of the PP composite material of nucleator and thermal conducting agent.
Can know by table 2, table 3 contrast; Added nucleator back draft intensity for be respectively 20,18,20,21,25MPa (table 2); Be higher than 18 when not adding nucleator, 16,19,20,23 MPa (table 3) respectively, added nucleator rear curved intensity and be respectively 28,27,30,30,33 MPa, be higher than 27 when not adding nucleator, 26,29,29,32 MPa respectively; It is also higher to have added nucleator rear curved modulus, has added that notched Izod impact strength is 21,24,19,19,15 kJ/m after the nucleator 2, be higher than 20 when not adding nucleator, 24,17,18,12 kJ/m respectively 2, this shows to have added rigidity and all increases to some extent of toughness of material after the nucleator; While contrast table 2 and table 3, after the adding nucleator, the Tc of material has also improved about 5 ℃, and the molding time of material has reduced about 10s, and is little to the thermal-oxidative aging property influence of material simultaneously.
Can know that by table 1 and table 2 contrast each item performance difference is little behind the adding thermal conducting agent, but molding time reduces obviously about 30s, has improved working efficiency.
Can know by table 1, table 2, table 3 contrast, the adding of nucleator and thermal conducting agent, not only the rigidity of PP composite material, toughness and Tc all increase to some extent; The PP composite material molding time significantly reduces, and by shortening to 40-50s more than traditional 80s, has improved production efficiency greatly; This is because the adding of nucleator can produce a large amount of out-phase nucleus, makes the spherocrystal refinement, improves PP crystalline temperature; Accelerate crystallization speed simultaneously, add thermal conducting agent on this basis, can the heat that produce in the injection moulding process be left rapidly; Reduce cooling time, the combination of this two aspect has improved the moulding speed of material, thereby in the shorter time, accomplishes moulding; The rigidity of material and toughness all increase to some extent simultaneously, and the thermal-oxidative aging property influence of material is little.
The foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.

Claims (10)

1. fast forming polypropylene matrix material is characterized in that: be prepared into by following materials of weight proportions:
Vestolen PP 7052 60-86%;
Filler 5-20%;
Toughner 5-25%
Nucleator 0.3-0.5%;
Thermal conducting agent 2-5%;
Thermo-stabilizer 0.1-1.0%;
Oxidation inhibitor 0.1-1.0%.
2. fast forming polypropylene matrix material according to claim 1 is characterized in that: said nucleator is beta crystal-type nucleater Y-619.
3. fast forming polypropylene matrix material according to claim 1; It is characterized in that: said thermal conducting agent is the cladding nanometer thermal conducting material, and the cladding nanometer thermal conducting material is made up of common mineral powder filling materials layer and the nanometer thermal conducting material layer that is coated on the mineral powder filling materials surface.
4. fast forming polypropylene matrix material according to claim 3 is characterized in that: described nanometer thermal conducting material is nano level aluminium nitride AlN or SP 1.
5. fast forming polypropylene matrix material according to claim 1 is characterized in that: said Vestolen PP 7052 is the Vestolen PP 7052 of homopolymerization or copolymerization.
6. fast forming polypropylene matrix material according to claim 5; It is characterized in that: for the Vestolen PP 7052 of copolymerization, comonomer is an ethene, and ethylene content is in the scope of 4-10mol%; Vestolen PP 7052 is under the temperature and pressure of 230 ℃ * 2.16kg, and melt flow rate(MFR) is 5-50g/10min.
7. fast forming polypropylene matrix material according to claim 1 is characterized in that: said filler is one or more of talcum powder, lime carbonate, magnesium sulfate crystal whisker, wollastonite, and the packing material size scope is the 1-10 micron.
8. fast forming polypropylene matrix material according to claim 1 is characterized in that: said toughner is rubber elastomer.
9. fast forming polypropylene matrix material according to claim 8 is characterized in that: described rubber elastomer is POE or EPDM.
10. prepare the method for any described fast forming polypropylene matrix material of claim 1-9, it is characterized in that: may further comprise the steps
(1) weighs raw material by weight ratio;
(2) raw material was done in super mixer mixed 3-5 minute;
(3) mixed raw material is placed dual-screw-stem machine,, make the matrix material that the enhancement type filler is filled through melt extruding granulation; Raw material is through a plurality of warm areas of dual-screw-stem machine, and extrusion temperature is 215~225 ℃, and the dual-screw-stem machine internal pressure is 12-18MPa, and raw material is 1-2 minute in the dual-screw-stem machine residence time.
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CN105462074A (en) * 2015-12-14 2016-04-06 上海金发科技发展有限公司 High-glossiness anti-scraping rapidly-formed polyolefin material
CN105462069A (en) * 2015-12-25 2016-04-06 广东威林工程塑料有限公司 Functionalized boron nitride nanosheet/polypropylene composite material and preparation method thereof
CN106046550A (en) * 2016-06-28 2016-10-26 邵炯 High-temperature-resistant, aging-resistant and impact-resistant heat-conduction polypropylene material and preparing method thereof
CN106479036A (en) * 2015-08-27 2017-03-08 合肥杰事杰新材料股份有限公司 A kind of composite polyolefine material for melting lamination rapid shaping and preparation method thereof
CN106543582A (en) * 2015-09-20 2017-03-29 合肥杰事杰新材料股份有限公司 Acrylonitrile butadiene rubber modified material of a kind of nanometer for being laminated rapid shaping and preparation method thereof

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CN103030883A (en) * 2012-12-10 2013-04-10 上海普利特复合材料股份有限公司 Polypropylene composite material capable of quick injection molding and preparation method thereof
CN106479036B (en) * 2015-08-27 2020-10-30 合肥杰事杰新材料股份有限公司 Polyolefin composite material for melt lamination rapid molding and preparation method thereof
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CN106543582A (en) * 2015-09-20 2017-03-29 合肥杰事杰新材料股份有限公司 Acrylonitrile butadiene rubber modified material of a kind of nanometer for being laminated rapid shaping and preparation method thereof
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CN105462074A (en) * 2015-12-14 2016-04-06 上海金发科技发展有限公司 High-glossiness anti-scraping rapidly-formed polyolefin material
CN105462069A (en) * 2015-12-25 2016-04-06 广东威林工程塑料有限公司 Functionalized boron nitride nanosheet/polypropylene composite material and preparation method thereof
CN106046550A (en) * 2016-06-28 2016-10-26 邵炯 High-temperature-resistant, aging-resistant and impact-resistant heat-conduction polypropylene material and preparing method thereof

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