CN104045981A - Thermal conductive carbon fiber reinforced PET (polyethylene terephthalate)/polyester alloy and preparation method thereof - Google Patents
Thermal conductive carbon fiber reinforced PET (polyethylene terephthalate)/polyester alloy and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a thermal conductive carbon fiber reinforced PET (polyethylene terephthalate)/polyester alloy and a preparation method thereof. The PET/polyester alloy is composed of the following components in percentage by weight: 30-40% of PET, 4-10% of polyester, 2-4% of a nucleating agent, 30-45% of thermal conductive filler, 5-20% of carbon fiber, 1-2% of a coupling agent, 0.5-1% of an antioxidant and 0.5-1% of a lubricant. The preparation method of the PET/polyester alloy comprises the following steps: firstly, mixing the PET, the polyester, the nucleating agent, the thermal conductive filler, the coupling agent, the antioxidant and the lubricant for 3-5 minutes in a high-speed mixing machine; then, adding the obtained mixture from a first-section barrel of a twin-screw extruder, and then adding the carbon fiber from a fourth-section barrel of the twin-screw extruder; and through controlling the rotating speed of the twin-screw extruder to be 1050-1200rpm and controlling the temperature at 240-250 DEG C, carrying out extrusion granulating, thus obtaining the thermal conductive carbon fiber reinforced PET/polyester alloy which has the advantages of high mechanical property, short molding cycle and good product appearance.
Description
Technical field
The present invention relates to fine PET/ polyester alloy strengthening of a kind of heat conduction carbon and preparation method thereof, belong to polymeric material field.
Background technology
Instantly,, along with scientific and technological development, a lot of fields all need to use heat sink material.But due to the restriction of weight and processing characteristics, the material such as metal and pottery that has excellent heat conductivity performance has been difficult to meet the demand of modern industry.Therefore, quality the plastics relatively light and processing of phase commute become desirable substitute.But its thermal conductivity of the common plastics of non-modified is very low, generally only have 0.2-0.5W/ (m.K), in this case, researching and developing high performance heat-conducting plastic becomes new trend.
Poly terephthalic acid second methyl alcohol ester (hereinafter to be referred as PET) has good mechanical property, resistance toheat, electrical property and chemical stability, and is a kind of thermoplastic engineering plastic of cheapness.But due to easy warpage and longer shaping cycle, limit to a great extent its range of application.Investigator had done large quantity research to PET blending and modifying both at home and abroad in the last few years, and had a lot of alloying products in market sale, but this type of alloy is still subject to the impact of interlaminar resin consistency, and mechanical property is poor, there is not problems in PET/ polyester alloy, and cost is lower.Therefore PET/ polyester alloy becomes new exploitation focus.
But, PET, PTT(Poly(Trimethylene Terephthalate)), PBT(polybutylene terephthalate) and PEN(polyethylene glycol 2，6-naphthalene dicarboxylate) although etc. the consistency between polyester fine, crystal property each other differs greatly.In order to shorten this gap, optimized alloy performance, just need to be used nucleator.Nucleator in the market can be divided into inorganic, organic and polymer three classes, and wherein effect surely belongs to the ionomer Surlyn resin of du pont company's exploitation preferably.
Carbon fiber not only has the intrinsic intrinsic property of carbon material, has again the soft workability of textile fibres concurrently.Its proportion is less than 1/4 of steel, but intensity is very high, is fortifying fibre of new generation.Compared with traditional glass fibre (GF), the Young's modulus of carbon fiber be its more than 3 times, and insoluble swollen in organic solvent, acid, alkali, solidity to corrosion is very unoutstanding.Carbon fiber is divided into universal and high-performance type by mechanical property.Common carbon fiber intensity is that 1000 MPas (MPa), modulus are 100GPa left and right.High-performance carbon fibers is divided into again high-strength (intensity 2000MPa, modulus 250GPa) and high model (more than modulus 300GPa), and what intensity was greater than 4000MPa is called again superelevation strong type: what modulus was greater than 450GPa is called superelevation model.In addition, carbon fiber self also has thermal conduction characteristic, and can between resin collective, run through formation heat conduction network chain, thereby greatly improves the capacity of heat transmission of material.
Chinese patent literature CN103436000A discloses a kind of enhanced thermal conduction PPO/PA Alloy And Preparation Method, and described matrix material is followed successively by by weight percentage:: 60 ~ 90 parts of polyphenylene oxide, 50 ~ 80 parts of nylon, 2 ~ 4 parts of silicon carbide whiskers, 6 ~ 8 parts, carbon fiber, 12 ~ 16 parts of silicon powders, 2 ~ 5 parts of nano aluminium oxides, 10 ~ 20 parts of melamine pyrophosphates, 0.5 ~ 1 part, oxidation inhibitor, lubricant TAF0.5 ~ 1 part, 7 ~ 11 parts of toughner, 1 ~ 3 part of maleic anhydride grafted ethene-1-octene copolymer.Preparation technology is simple in this invention, and the product good mechanical property, the stability that make are high, and has good flame retardant properties and heat conductivility.
Chinese patent literature CN102093692A discloses a kind of PC/ABS heat conduction alloy material and its production and use, be characterized in 40～80 weight parts by PC, ABS 60～20 weight parts, expanding material 2～8 weight parts, heat conduction inorganic filler 18～138 weight parts that coupling agent (content account for inorganic filler content 0.5～2.5%) is processed, asphalt base carbon fiber 6～38 weight parts, oxidation inhibitor 0.2～1.0 weight part, add in high-speed mixer and mix the rear parallel dual-screw extruding machine granulation of using, extrusion temperature is 230～245 DEG C.Obtain PC/ABS heat conduction alloy material; The injection moulding machine injection moulding of PC/ABS heat conduction alloy material, injection temperature is 235～250 DEG C; The more unmodified PC/ABS alloy material of thermal conductivity of this PC/ABS heat conduction alloy material has improved 1～3 times, can be used for manufacturing mobile phone, notebook computer or the electronic product casing that heat conduction is had relatively high expectations.
But the two-phase system consistency that above-mentioned various alloy materials adopt is also bad, therefore needs to add expanding material and impels it compatible, this not only can increase the cost of alloy, and can affect the rigidity of material, causes the reduction of stretching and bending property.Secondly, although above-mentioned several alloy materials have adopted carbon fiber to strengthen, go to improve dispersiveness and the interface interaction power of carbon fiber between resin matrix but do not add silane coupling agent, therefore the enhancing of carbon fiber and heat conduction effectiveness are not given full play to, and the outward appearance of product is also undesirable.In addition, silane coupling agent can also improve the avidity of mineral filler and resin in material, thereby improves the performance of alloy.The present invention proposes in order to address these problems just.
Summary of the invention
To the object of the invention is the technical problems such as in order solving above-mentioned heat conduction alloy material cost is high, appearance poor, mechanical property deficiency and to provide a kind of heat conduction carbon the fine PET/ polyester alloy strengthening.
Another object of the present invention is to provide the preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon.
Technical scheme of the present invention
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 30-40%
Polyester 4-10%
Nucleator 2-4%
Heat conductive filler 30-45%
Carbon fiber 5-20%
Coupling agent 1-2%
Oxidation inhibitor 0.5-1%
Lubricant 0.5-1%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is polybutylene terephthalate, Poly(Trimethylene Terephthalate) or poly-2,6-(ethylene naphthalate);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture of 30nm aluminum oxide composition;
Described carbon fiber is tensile strength 3000-4000MPa, and tensile strength and the ratio of the rigidity carbon fiber that is 1.5-2.0%;
Described coupling agent is KH-570 type silane coupling agent;
Described oxidation inhibitor is the mixture of irgasfos 168, antioxidant 1010 or irgasfos 168 and antioxidant 1010 composition;
Described lubricant is the mixture of one or more compositions of paraffin, polyethylene wax or Poly Propylene Wax.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, equipment used is twin screw extruder, and its model is SHJ-50, and manufacturer is Nanjing Jieya Extruding Equipment Co., Ltd., specifically comprises the following steps:
(1), PET, polyester, nucleator, heat conductive filler, coupling agent, oxidation inhibitor and lubricant are put into high-speed mixer and mixing 3-5min, then added by twin screw extruder first paragraph cylindrical shell;
(2), carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1050-1200rpm, temperature is 240-250 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon.
Beneficial effect of the present invention
The fine PET/ polyester alloy strengthening of a kind of heat conduction carbon of the present invention, owing to having adopted suitable nucleator in preparation process, has improved the crystal property of polyester alloy, thereby has shortened the shaping cycle of the fine REINFORCED PET/polyester alloy of heat conduction carbon.
Further, the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon of the present invention, owing to having adopted carbon fiber in preparation process, not only can significantly promote the mechanical property of material, can also play the effect that strengthens heat conduction.
Further, the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon of the present invention, owing to having adopted silane coupling agent in preparation process, not only improve dispersiveness and the interface interaction power of carbon fiber between resin matrix, also improve the avidity of mineral filler and resin, thereby optimize mechanical property and the heat conductivility of material, improved the outward appearance of product.
Further, the fine PET/ polyester alloy strengthening of heat conduction carbon of the present invention has good mechanical property and heat conductivility, can replace expensive special engineering plastics in some occasion, is with a wide range of applications.
Embodiment
Below by specific embodiment, the present invention is further elaborated, but does not limit the present invention.
In various embodiments of the present invention, PET resin used is the PET-CB-608S of Shanghai Yuan Fang Industrial Co., Ltd;
The PBT-TH6100 that polybutylene terephthalate (hereinafter to be referred as PBT) is Xinjiang Lanshan Tunhe Polyester Co., Ltd;
Poly(Trimethylene Terephthalate) (hereinafter to be referred as PTT) is the 4700-TFE-10 of RTP company of the U.S.;
Polyethylene glycol 2，6-naphthalene dicarboxylate (hereinafter to be referred as PEN) is the TN-8065S of Japanese Di Ren company;
Nucleator is the ionomer Surlyn 8920 of du pont company;
Graphite is the FG2 of Qingdao Dong Kai graphite company limited, and granularity is 44um;
Aluminum oxide is the nano aluminium oxide that titanium white Products Co., Ltd of BDCom is opened up in Wuxi, and granularity is 30nm;
Carbon fiber is the T300 of toray company;
Silane coupling agent is the KH-570 silane coupling agent of Nanjing Qian Peng Chemical Co., Ltd.;
Irgasfos 168 and antioxidant 1010 are that BASF Aktiengesellschaft produces;
Paraffin is that Shijiazhuang Yi Ma Chemical Co., Ltd. produces;
Polyethylene wax and Poly Propylene Wax are that Shanghai Ke Maide Industrial Co., Ltd. produces.
Model and manufacturer's information of tensile strength, flexural strength, modulus in flexure, shock strength, heat-drawn wire (1.82MPa) and measuring thermal conductivity in various embodiments of the present invention instrument used are as follows.
Universal electrical tensile testing machine: CMT6104 type, group company is newly thought carefully in Shenzhen;
Izodtest instrument: XJV5.5 type, Chengde Jinjian Testing Instrument Co., Ltd.;
Heat-drawn wire determinator: XWB-300A type, Chengde Ke Cheng trier company limited;
Laser heat conducting instrument: LFA 447 types, German Nai Chi company;
Twin screw extruder: SHJ-50 type, Nanjing Jieya Extruding Equipment Co., Ltd..
embodiment 1
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 34.8%
Polyester 8.7%
Nucleator 4%
Heat conductive filler 45%
Carbon fiber 5%
Coupling agent 1%
Oxidation inhibitor 1%
Lubricant 0.5%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is polyethylene glycol 2，6-naphthalene dicarboxylate (hereinafter to be referred as PEN);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are 30nm aluminum oxide, calculates in mass ratio, and graphite and aluminum oxide are the mixture of 2:1 composition;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described coupling agent is Silane coupling reagent KH-570;
Described oxidation inhibitor is irgasfos 168 and antioxidant 1010, calculates in mass ratio i.e. irgasfos 168: antioxidant 1010 is the mixture of 3:7 composition;
Described lubricant is paraffin.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, specifically comprises the following steps:
(1), 34.8% PET, 8.7% polyester, 45% heat conductive filler, 4% nucleator, 1% silane coupling agent, 1% oxidation inhibitor and 0.5% lubricant are put into high-speed mixer and mixing 5min, then added by twin screw extruder first paragraph cylindrical shell;
(2), 5% carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1050rpm, temperature is 240 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon.
embodiment 2
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat conductive filler 40%
Carbon fiber 10%
Coupling agent 1.5%
Oxidation inhibitor 1%
Lubricant 0.5%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is Poly(Trimethylene Terephthalate) (hereinafter to be referred as PTT);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are 30nm aluminum oxide, calculates in mass ratio, and graphite and aluminum oxide are the mixture of 7:3 composition;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described compatilizer is Silane coupling reagent KH-570;
Described oxidation inhibitor is irgasfos 168 and antioxidant 1010, calculates in mass ratio i.e. irgasfos 168: antioxidant 1010 is the mixture of 3:7 composition;
Described lubricant is polyethylene wax.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, specifically comprises the following steps:
(1), 37.4% PET, 6.6% polyester, 3% nucleator, 40% heat conductive filler, 1.5% coupling agent, 1% oxidation inhibitor and 0.5% lubricant are put into high-speed mixer and mixing 5min, then added by twin screw extruder first paragraph cylindrical shell;
(2), 10% carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1100rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon, i.e. PET/PTT alloy.
embodiment 3
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat conductive filler 40%
Carbon fiber 10%
Coupling agent 1.5%
Oxidation inhibitor 1%
Lubricant 0.5%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is polybutylene terephthalate (hereinafter to be referred as PBT);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are 30nm aluminum oxide, calculates in mass ratio, and graphite and aluminum oxide are the mixture of 7:3 composition;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described compatilizer is Silane coupling reagent KH-570;
Described oxidation inhibitor is irgasfos 168 and antioxidant 1010, calculates in mass ratio i.e. irgasfos 168: antioxidant 1010 is the mixture of 3:7 composition;
Described lubricant is polyethylene wax.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, specifically comprises the following steps:
(1), 37.4% PET, 6.6% polyester, 40% heat conductive filler, 3% nucleator, 1.5% coupling agent, 1% oxidation inhibitor and 0.5% lubricant are put into high-speed mixer and mixing 5min, then added by twin screw extruder first paragraph cylindrical shell;
(2), 10% carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1100rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon, i.e. PET/PBT alloy.
embodiment 4
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 35.2%
Polyester 8.8%
Nucleator 3%
Heat conductive filler 35%
Carbon fiber 15%
Coupling agent 1.5%
Oxidation inhibitor 0.5%
Lubricant 1%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is Poly(Trimethylene Terephthalate) (hereinafter to be referred as PTT);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are 30nm aluminum oxide, calculates in mass ratio, and graphite and aluminum oxide are the mixture of 3:2 composition;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described coupling agent is Silane coupling reagent KH-570;
Described oxidation inhibitor is antioxidant 1010;
Described lubricant is paraffin and Poly Propylene Wax, calculates in mass ratio i.e. paraffin: Poly Propylene Wax is the mixture of 1:1 composition.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, specifically comprises the following steps:
(1), 35.2% PET, 8.8% polyester, 3% nucleator, 35% heat conductive filler, 1.5% coupling agent, 0.5% oxidation inhibitor and 1% lubricant are put into high-speed mixer and mixing 3min, then added by twin screw extruder first paragraph cylindrical shell;
(2), 15% carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1200rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon, i.e. PET/PTT alloy.
embodiment 5
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 35.2%
Polyester 8.8%
Nucleator 3%
Heat conductive filler 35%
Carbon fiber 15%
Coupling agent 1.5%
Oxidation inhibitor 0.5%
Lubricant 1%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is polybutylene terephthalate (hereinafter to be referred as PBT);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are 30nm aluminum oxide, calculates in mass ratio, and graphite and aluminum oxide are the mixture of 3:2 composition;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described coupling agent is Silane coupling reagent KH-570;
Described oxidation inhibitor is antioxidant 1010;
Described lubricant is paraffin and Poly Propylene Wax, calculates in mass ratio i.e. paraffin: Poly Propylene Wax is the mixture of 1:1 composition.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, specifically comprises the following steps:
(1), 35.2% PET, 8.8% polyester, 3% nucleator, 35% heat conductive filler, 1.5% coupling agent, 0.5% oxidation inhibitor and 1% lubricant are put into high-speed mixer and mixing 4min, then added by twin screw extruder first paragraph cylindrical shell;
(2), 15% carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1200rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon, i.e. PET/PBT alloy.
embodiment 6
The fine PET/ polyester alloy strengthening of heat conduction carbon, counts by weight percentage, and composition and the content of its raw material are as follows:
PET 40%
Polyester 4.5%
Nucleator 2%
Heat conductive filler 30%
Carbon fiber 20%
Coupling agent 2%
Oxidation inhibitor 0.5%
Lubricant 1%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is polybutylene terephthalate (hereinafter to be referred as PBT);
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is the mixture that graphite and aluminum oxide form for 4:1 in mass ratio;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described coupling agent is Silane coupling reagent KH-570;
Described oxidation inhibitor is antioxidant 1010;
Described lubricant is polyethylene wax and Poly Propylene Wax, calculates in mass ratio i.e. paraffin: Poly Propylene Wax is the mixture of 1:1 composition.
The preparation method of the above-mentioned fine PET/ polyester alloy strengthening of a kind of heat conduction carbon, specifically comprises the following steps:
(1), 40% PET, 4.5% polyester, 2% nucleator, 30% heat conductive filler, 2% coupling agent, 0.5% oxidation inhibitor and 1% lubricant are put into high-speed mixer and mixing 5min, then added by twin screw extruder first paragraph cylindrical shell;
(2), 20% carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1200rpm, temperature is 250 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon, i.e. PET/PBT alloy.
To tensile strength, the fracture of the fine PET/ polyester alloy strengthening of the heat conduction carbon of above-described embodiment 1-6 gained
Elongation, flexural strength, modulus in flexure, shock strength, heat-drawn wire (1.82MPa), molding shrinkage (disk) detect, and it the results are shown in following table 1:
The physicals of the fine PET/ polyester alloy strengthening of heat conduction carbon of table 1, embodiment 1-6 gained
| Physicals | Unit | Testing method | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Tensile strength | MPa | ASTM D638 | 98.5 | 117.3 | 111.4 | 146.8 | 141.3 | 162.7 |
| Flexural strength | MPa | ASTM D790 | 128.8 | 162.2 | 157.3 | 190.1 | 186.2 | 218.5 |
| Modulus in flexure | MPa | ASTM D790 | 6052.9 | 7360.6 | 7288.0 | 8643.6 | 8431.5 | 10054.3 |
| Notched Izod impact strength | J/m | ASTM D256 | 51.3 | 65.1 | 63.2 | 80.7 | 78.9 | 90.2 |
| Heat-drawn wire (1.82MPa) | ℃ | ASTM D648 | 154.7 | 188.5 | 185.6 | 211.2 | 206.4 | 233.9 |
| Thermal conductivity | W/(m· K) | ASTM E1461 | 5.702 | 6.286 | 6.493 | 6.871 | 7.005 | 7.397 |
As can be seen from Table 1, along with the increase of carbon fiber content, tensile strength, flexural strength, modulus in flexure, shock strength and the heat-drawn wire of the fine PET/ polyester alloy material strengthening of the heat conduction carbon of gained improve thereupon, the mechanical property that shows thus carbon fiber content and the PET polyester alloy trend that is proportionate.
Further, by the relatively discovery to embodiment 3,5,6, in the fine PET/ polyester alloy strengthening of heat conduction carbon PET used identical with polyester raw material, along with the continuous reduction of heat conductive filler content, be down to 30% from 40%, the thermal conductivity of the fine PET/ polyester alloy material strengthening of heat conduction carbon of final gained does not reduce, and raises to some extent on the contrary.And meanwhile, the content of carbon fiber constantly raises in the fine PET/ polyester alloy strengthening of heat conduction carbon, therefore show that carbon fiber can effectively strengthen the heat conductivility of the fine PET/ polyester alloy material strengthening of heat conduction carbon.
Further, by embodiment 2-4 and embodiment 3,4-5 are relatively found, in the situation that other raw materials composition and content are all identical, polyester is that the fine REINFORCED PET/polyester alloy of the heat conduction carbon of polybutylene terephthalate gained is that PET/PTT alloy has more advantage in mechanical property, and polyester is that the fine REINFORCED PET/polyester alloy of the heat conduction carbon of polybutylene terephthalate gained is that PET/PBT alloy is relatively better in thermal conductivity.Therefore, the impact of the properties of different types of polyester on the fine PET/ polyester alloy strengthening of final residing heat conduction carbon is also not quite similar, and should select as the case may be in actual applications suitable polyester to carry out modification to PET.
In sum, the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon of the present invention, have good mechanical property, thermal conductivity high, and because matrix is cheap PET and does not use compatilizer, its production cost is also lower.
Further, the fine PET/ polyester alloy strengthening of heat conduction carbon of the present invention, owing to having adopted suitable nucleator, heat conductive filler and coupling agent, strengthen the crystal property of polyester, improve the avidity between polyester and heat conductive filler, improved dispersiveness and the interface interaction power of carbon fiber between resin matrix, thereby optimized processing characteristics, heat conductivility and the mechanical property of alloy, can replace expensive special engineering plastics in some occasion, be with a wide range of applications.
The above is only preferred case study on implementation of the present invention; it should be noted that, for the those skilled in the art in this field, do not departing under the prerequisite of the inventive method; also can make a little supplementing and improvement, these supplement and improve and also should be considered as protection scope of the present invention.
Claims (10)
1. the fine PET/ polyester alloy strengthening of heat conduction carbon, is characterized in that the fine REINFORCED PET/polyester alloy of described heat conduction carbon counts by weight percentage, and composition and the content of its raw material are as follows:
PET 30-40%
Polyester 4-10%
Nucleator 2-4%
Heat conductive filler 30%-45%
Carbon fiber 5-20%
Coupling agent 1-2%
Oxidation inhibitor 0.5-1%
Lubricant 0.5-1%;
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g;
Described polyester is Poly(Trimethylene Terephthalate), polybutylene terephthalate or polyethylene glycol 2，6-naphthalene dicarboxylate;
Described nucleator is the ionomer Surlyn 8920 of du pont company;
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture of 30nm aluminum oxide composition;
Described carbon fiber is tensile strength 3000-4000MPa, and tensile strength and the ratio of the rigidity carbon fiber that is 1.5-2.0%;
Described coupling agent is KH-570 type silane coupling agent;
Described oxidation inhibitor is the mixture of irgasfos 168, antioxidant 1010 or irgasfos 168 and antioxidant 1010 composition;
Described lubricant is the mixture of one or more compositions in paraffin, polyethylene wax and Poly Propylene Wax.
2. the fine PET/ polyester alloy strengthening of heat conduction carbon, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 34.8-40%
Polyester 4.5-8.8%.
3. the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon as claimed in claim 2, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 34.8%
Polyester 8.7%
Nucleator 4%
Heat conductive filler 45%
Carbon fiber 5%
Coupling agent 1%
Oxidation inhibitor 1%
Lubricant 0.5%;
Described polyester is polyethylene glycol 2，6-naphthalene dicarboxylate;
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture that 30nm aluminum oxide forms for 2:1 in mass ratio;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described oxidation inhibitor is the mixture that irgasfos 168 and antioxidant 1010 form for 3:7 in mass ratio;
Described lubricant is paraffin.
4. the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon as claimed in claim 2, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat conductive filler 40%
Carbon fiber 10%
Coupling agent 1.5%
Oxidation inhibitor 1%
Lubricant 0.5%;
Described polyester is Poly(Trimethylene Terephthalate);
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture that 30nm aluminum oxide forms for 7:3 in mass ratio;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described oxidation inhibitor is the mixture that irgasfos 168 and antioxidant 1010 form for 3:7 in mass ratio;
Described lubricant is polyethylene wax.
5. the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon as claimed in claim 2, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat conductive filler 40%
Carbon fiber 10%
Coupling agent 1.5%
Oxidation inhibitor 1%
Lubricant 0.5%;
Described polyester is polybutylene terephthalate;
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture that 30nm aluminum oxide forms for 7:3 in mass ratio;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described oxidation inhibitor is the mixture that irgasfos 168 and antioxidant 1010 form for 3:7 in mass ratio;
Described lubricant is polyethylene wax.
6. the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon as claimed in claim 2, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 35.2%
Polyester 8.8%
Nucleator 3%
Heat conductive filler 35%
Carbon fiber 15%
Coupling agent 1.5%
Oxidation inhibitor 0.5%
Lubricant 1%;
Described polyester is Poly(Trimethylene Terephthalate);
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture that 30nm aluminum oxide forms for 3:2 in mass ratio;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described oxidation inhibitor is antioxidant 1010;
Described lubricant is the mixture that paraffin and Poly Propylene Wax form for 1:1 in mass ratio.
7. the fine PET/ polyester alloy increasing of a kind of heat conduction carbon as claimed in claim 2, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 35.2%
Polyester 8.8%
Nucleator 3%
Heat conductive filler 35%
Carbon fiber 15%
Coupling agent 1.5%
Oxidation inhibitor 0.5%
Lubricant 1%;
Described polyester is polybutylene terephthalate;
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture that 30nm aluminum oxide forms for 3:2 in mass ratio;
Described carbon fiber is high-strength carbon fiber T300, and its tensile strength is 3000-4000MPa, and its tensile strength is 1.5-2.0% with the ratio of rigidity;
Described oxidation inhibitor is antioxidant 1010;
Described lubricant is the mixture that paraffin and Poly Propylene Wax form for 1:1 in mass ratio.
8. the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon as claimed in claim 2, is characterized in that counting by weight percentage, and composition and the content of its raw material are as follows:
PET 40%
Polyester 4.5%
Nucleator 2%
Heat conductive filler 30%
Carbon fiber 20%
Coupling agent 2%
Oxidation inhibitor 0.5%
Lubricant 1%;
Described polyester is polybutylene terephthalate;
Described heat conductive filler is that granularity is that 44um graphite and granularity are the mixture that 30nm aluminum oxide forms for 4:1 in mass ratio;
Described oxidation inhibitor is antioxidant 1010;
Described lubricant is the mixture that polyethylene wax and Poly Propylene Wax form for 1:1 in mass ratio.
9. the preparation method of the fine PET/ polyester alloy strengthening of the heat conduction carbon as described in claim as arbitrary in claim 1-8, is characterized in that specifically comprising the following steps:
(1), PET, polyester, nucleator, heat conductive filler, coupling agent, oxidation inhibitor and lubricant are put into high-speed mixer and mixing 3-5min, then added by twin screw extruder first paragraph cylindrical shell;
(2), carbon fiber is added by the 4th section of cylindrical shell of twin screw extruder;
(3), to control the rotating speed of twin screw extruder be 1050-1200rpm, temperature is 240-250 DEG C and carries out extruding pelletization, obtains the fine PET/ polyester alloy strengthening of heat conduction carbon.
10. the preparation method of the fine PET/ polyester alloy strengthening of a kind of heat conduction carbon as claimed in claim 9, the model that it is characterized in that twin screw extruder used in preparation process is SHJ-50, manufacturer is Nanjing Jieya Extruding Equipment Co., Ltd..
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387762A (en) * | 2014-11-18 | 2015-03-04 | 上海大学 | Polyamide/polypropylene alloy heat-conducting composite material and preparation method thereof |
| CN108912621A (en) * | 2018-06-25 | 2018-11-30 | 广东格瑞新材料股份有限公司 | A kind of PET material and preparation method thereof of for transformer skeleton |
| CN112646333A (en) * | 2020-12-28 | 2021-04-13 | 宁波东诚日用塑料制品有限公司 | Modified PET material and preparation method thereof |
| WO2021090841A1 (en) * | 2019-11-06 | 2021-05-14 | 東洋インキＳｃホールディングス株式会社 | Metal oxide dispersion and molded object |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122092A (en) * | 2013-02-27 | 2013-05-29 | 深圳市飞荣达科技股份有限公司 | Thermal conductive plastic and method for manufacturing mobile telephone shell by utilizing thermal conductive plastic |
| CN103382297A (en) * | 2013-07-22 | 2013-11-06 | 上海电力学院 | Low-warpage carbon-fiber-reinforced polyethylene terephthalate (PET)/polyester alloy and preparation process thereof |
| CN103772919A (en) * | 2012-10-17 | 2014-05-07 | 合肥杰事杰新材料股份有限公司 | Halogen-free fire-retardant glass fiber reinforced PET composition and preparation method thereof |
-
2014
- 2014-06-16 CN CN201410266869.0A patent/CN104045981B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772919A (en) * | 2012-10-17 | 2014-05-07 | 合肥杰事杰新材料股份有限公司 | Halogen-free fire-retardant glass fiber reinforced PET composition and preparation method thereof |
| CN103122092A (en) * | 2013-02-27 | 2013-05-29 | 深圳市飞荣达科技股份有限公司 | Thermal conductive plastic and method for manufacturing mobile telephone shell by utilizing thermal conductive plastic |
| CN103382297A (en) * | 2013-07-22 | 2013-11-06 | 上海电力学院 | Low-warpage carbon-fiber-reinforced polyethylene terephthalate (PET)/polyester alloy and preparation process thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387762A (en) * | 2014-11-18 | 2015-03-04 | 上海大学 | Polyamide/polypropylene alloy heat-conducting composite material and preparation method thereof |
| CN108912621A (en) * | 2018-06-25 | 2018-11-30 | 广东格瑞新材料股份有限公司 | A kind of PET material and preparation method thereof of for transformer skeleton |
| WO2021090841A1 (en) * | 2019-11-06 | 2021-05-14 | 東洋インキＳｃホールディングス株式会社 | Metal oxide dispersion and molded object |
| JP2021075591A (en) * | 2019-11-06 | 2021-05-20 | 東洋インキＳｃホールディングス株式会社 | Metal oxide dispersion and molded object |
| CN112646333A (en) * | 2020-12-28 | 2021-04-13 | 宁波东诚日用塑料制品有限公司 | Modified PET material and preparation method thereof |
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