CN104045981B - PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens and preparation method thereof - Google Patents
PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens and preparation method thereof Download PDFInfo
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- CN104045981B CN104045981B CN201410266869.0A CN201410266869A CN104045981B CN 104045981 B CN104045981 B CN 104045981B CN 201410266869 A CN201410266869 A CN 201410266869A CN 104045981 B CN104045981 B CN 104045981B
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- 229920000728 polyester Polymers 0.000 title claims abstract description 91
- 239000000956 alloy Substances 0.000 title claims abstract description 74
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 64
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 53
- 239000000835 fiber Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title abstract description 18
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 55
- 239000004917 carbon fiber Substances 0.000 claims abstract description 55
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000203 mixture Substances 0.000 claims abstract description 53
- 239000000314 lubricant Substances 0.000 claims abstract description 30
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 29
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 29
- 239000007822 coupling agent Substances 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 96
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 96
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 54
- -1 polyethylene terephthalate Polymers 0.000 claims description 31
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 29
- 239000010439 graphite Substances 0.000 claims description 17
- 229910002804 graphite Inorganic materials 0.000 claims description 17
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 13
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 13
- 229910000077 silane Inorganic materials 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 12
- 229920003182 Surlyn® Polymers 0.000 claims description 10
- 229920000554 ionomer Polymers 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 239000012188 paraffin wax Substances 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 239000001993 wax Substances 0.000 claims description 9
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims description 5
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 claims 1
- 238000005453 pelletization Methods 0.000 abstract description 8
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 229920007019 PC/ABS Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000011256 inorganic filler Substances 0.000 description 4
- 229910003475 inorganic filler Inorganic materials 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004067 bulking agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920006380 polyphenylene oxide Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910001125 Pa alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- XZTOTRSSGPPNTB-UHFFFAOYSA-N phosphono dihydrogen phosphate;1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(N)=N1.OP(O)(=O)OP(O)(O)=O XZTOTRSSGPPNTB-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The present invention discloses PET/ polyester alloy of a kind of heat conduction carbon fibre enhancing and preparation method thereof, described PET/ polyester alloy is count by weight percentage by 30 40%PET, 4 10% polyester, 2 4% nucleators, 30 45% heat fillings, 5 20% carbon fibers, 1 2% coupling agent, 0.5 1% antioxidant and 0.5 1% lubricant composition.First PET, polyester, nucleator, heat filling, coupling agent, antioxidant and lubricant are put into high-speed mixer and mixing 35 minutes by its preparation method, then added by double screw extruder first paragraph cylinder, then carbon fiber is added by the 4th section of cylinder of double screw extruder, then the rotating speed controlling double screw extruder is 1050 1200rpm, temperature is 240 250 DEG C and carries out extruding pelletization, must have the PET/ polyester alloy that the heat conduction carbon fibre that mechanical property is high, molding cycle is short, product appearance is good strengthens.
Description
Technical field
The present invention relates to PET/ polyester alloy of a kind of heat conduction carbon fibre enhancing and preparation method thereof, belong to macromolecular material neck
Territory.
Background technology
Instantly, along with the development of science and technology, a lot of fields are required for using heat sink material.But, due to weight and add
The restriction of work performance, the material such as metal and pottery of having excellent heat conductivity performance is difficult to meet the demand of modern industry.Therefore,
The plastic that quality the gentliest and is relatively easily processed becomes preferable succedaneum.But, the common plastics of non-modified
Its thermal conductivity is the lowest, the most only 0.2-0.5W/ (m.K), and in this case, researching and developing high performance heat-conducting plastic becomes newly
Trend.
Poly terephthalic acid second methanol ester (hereinafter referred to as PET) have excellent mechanical property, heat resistance, electrical property with
And chemical stability, and it is a kind of cheap thermoplastic engineering plastic.But due to easy warpage and longer molding cycle, very
Its range of application is limited in big degree.Both at home and abroad PET blending and modifying had been done numerous studies by researcher in the last few years, and
Having a lot of alloying product in market sale, but this type of alloy is still affected by the interlaminar resin compatibility, mechanical performance is poor,
The most there is not problems in PET/ polyesters alloy, and cost is relatively low.Therefore PET/ polyesters alloy becomes new exploitation heat
Point.
But, PET, PTT(PTT), PBT(polybutylene terephthalate (PBT)) and PEN(gather
NDA glycol ester) although etc. the compatibility between polyester fine, but crystal property each other differs greatly.In order to
Shorten this gap, optimized alloy performance, it is necessary to use nucleator.Nucleator in the market can be divided into inorganic, have
Machine and macromolecule three class, wherein effect preferably surely belongs to the ionomer Surlyn resin of du pont company's exploitation.
Carbon fiber not only has the intrinsic intrinsic property of material with carbon element, has again the soft machinability of textile fabric concurrently.Its ratio
Weight is less than the 1/4 of steel, but intensity is the highest, is a new generation's reinforcing fiber.Compared with traditional glass fibre (GF), carbon fiber
Young's modulus be its more than 3 times, and insoluble the most swollen in organic solvent, acid, alkali, corrosion resistance is outstanding.Power pressed by carbon fiber
Learn performance and be divided into universal and high-performance type.Common carbon fiber intensity be 1000 MPas (MPa), modulus be about 100GPa.
High-performance carbon fibers is divided into again high-strength (intensity 2000MPa, modulus 250GPa) and high model (more than modulus 300GPa), by force
Degree is also called superelevation strong type more than 4000MPa's: modulus is referred to as superelevation model more than 450GPa.Additionally, carbon fiber self is also
There is thermal conduction characteristic, and heat conduction network chain can be formed there through between resin collective, thus be greatly improved the capacity of heat transmission of material.
Chinese patent literature CN103436000A discloses a kind of enhanced thermal conduction PPO/PA alloy and preparation method thereof, described
Composite be followed successively by by weight percentage:: polyphenylene oxide 60 ~ 90 parts, nylon 50 ~ 80 parts, silicon carbide whisker 2 ~ 4 parts, carbon
Fiber 6 ~ 8 parts, silicon powder 12 ~ 16 parts, nano aluminium oxide 2 ~ 5 parts, melamine pyrophosphate 10 ~ 20 parts, 0.5 ~ 1 part of antioxidant,
Lubricant TAF0.5 ~ 1 part, toughener 7 ~ 11 parts, maleic anhydride grafted ethene-1-octene copolymer 1 ~ 3 part.Work is prepared in this invention
Skill is simple, and the product good mechanical property, the stability that prepare are high, and have good fire resistance and heat conductivility.
Chinese patent literature CN102093692A discloses a kind of PC/ABS conducting alloy material and preparation method thereof and uses
On the way, it is characterized in that bulking agent 2～8 weight portion, (content accounts for coupling agent by PC 40～80 weight portion, ABS 60～20 weight portion
The 0.5 of inorganic filler content～2.5%) heat conduction inorganic filler 18～138 weight portion processed, asphalt base carbon fiber 6～38 weight
Amount part, antioxidant 0.2～1.0 weight portion, use parallel dual-screw extruding machine pelletize after mix homogeneously in addition high-speed mixer, squeeze
Going out temperature is 230～245 DEG C.Obtain PC/ABS conducting alloy material；PC/ABS conducting alloy material injection machine injection mo(u)lding,
Injection temperature is 235～250 DEG C；The heat conductivity more unmodified PC/ABS alloy material of this PC/ABS conducting alloy material carries
High 1～3 times, can be used for manufacturing mobile phone, notebook computer or the electronic product casing that heat conduction requirement is higher.
But, the two-phase system compatibility that above-mentioned various alloy materials use is the most bad, it is therefore desirable to add bulking agent
Promoting it compatible, this not only can increase the cost of alloy, and can affect the rigidity of material, causes the fall of stretching and bending property
Low.Secondly, although above-mentioned several alloy materials have employed carbon fiber and strengthen, but and it is not added with silane coupler and goes to improve
Carbon fiber dispersibility between resin matrix and interface interaction power, therefore enhancing and the heat conduction effectiveness of carbon fiber is the most fully sent out
Waving, the outward appearance of product is the most undesirable.Additionally, silane coupler can also improve inorganic filler and the affinity of resin in material,
Thus improve the performance of alloy.The present invention is precisely in order to solve these problems and propose.
Summary of the invention
The invention aims to solve above-mentioned conducting alloy material cost height, appearance poor, mechanical performance is not enough
Technical problem and the PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens is provided.
It is a further object to provide the preparation side of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens
Method.
Technical scheme
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 30-40%
Polyester 4-10%
Nucleator 2-4%
Heat filling 30-45%
Carbon fiber 5-20%
Coupling agent 1-2%
Antioxidant 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 (PBT), PTT or poly-2,6-naphthalene diformazan
Acid glycol ester；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is the mixture that granularity is 44um graphite and granularity is 30nm aluminium oxide composition；
Described carbon fiber is hot strength 3000-4000MPa, and the carbon that ratio is 1.5-2.0% of hot strength and rigidity
Fiber；
Described coupling agent is KH-570 type silane coupler；
Described antioxidant is the mixing of irgasfos 168, antioxidant 1010 or irgasfos 168 and antioxidant 1010 composition
Thing；
Described lubricant is the mixture of one or more compositions of paraffin, Tissuemat E or polypropylene wax.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, equipment used is twin-screw extrusion
Machine, its model is SHJ-50, and manufacturer is Nanjing Jieya Extruding Equipment Co., Ltd., specifically includes following steps:
(1), PET, polyester, nucleator, heat filling, coupling agent, antioxidant and lubricant are put into high-speed mixer and mixing
3-5min, is then added by double screw extruder first paragraph cylinder；
(2), carbon fiber is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1050-1200rpm, temperature is 240-250 DEG C and carries out extruding pelletization,
Obtain the PET/ polyester alloy that heat conduction carbon fibre strengthens.
Beneficial effects of the present invention
The PET/ polyester alloy that a kind of heat conduction carbon fibre of the present invention strengthens, owing to have employed suitable nucleation in preparation process
Agent, improves the crystal property of polyester alloy, thus shortens the molding cycle of heat conduction carbon fibre REINFORCED PET/polyester alloy.
Further, the PET/ polyester alloy that a kind of heat conduction carbon fibre of the present invention strengthens, owing to have employed carbon in preparation process
Fiber, not only can be substantially improved the mechanical property of material, moreover it is possible to play the effect strengthening heat conduction.
Further, the PET/ polyester alloy that a kind of heat conduction carbon fibre of the present invention strengthens, owing to have employed silicon in preparation process
Alkane coupling agent, not only improves carbon fiber dispersibility between resin matrix and interface interaction power, also improve inorganic filler with
The affinity of resin, thus optimize mechanical property and the heat conductivility of material, improve the outward appearance of product.
Further, the PET/ polyester alloy that the heat conduction carbon fibre of the present invention strengthens has good mechanical performance and heat conductivity
Can, expensive special engineering plastics can be replaced in some occasion, be with a wide range of applications.
Detailed description of the invention
Below by specific embodiment, the present invention is further elaborated, but is not limiting as the present invention.
The PET-CB-608S that PET resin is Shanghai Yuan Fang Industrial Co., Ltd used in various embodiments of the present invention；
Polybutylene terephthalate (PBT) (hereinafter referred to as PBT) is the PBT-of Xinjiang Lanshan Tunhe Polyester Co., Ltd
TH6100；
PTT (hereinafter referred to as PTT) is the 4700-TFE-10 of RTP company of the U.S.；
Poly-2,6-(ethylene naphthalate) (hereinafter referred to as PEN) is the TN-8065S of Di Ren company of Japan；
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；
Aluminium 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 coupler is the KH-570 silane coupler of Nanjing thousand roc Chemical Co., Ltd.；
Irgasfos 168 and antioxidant 1010 are that BASF Aktiengesellschaft produces；
Paraffin is that Shijiazhuang Yi Ma Chemical Co., Ltd. produces；
Tissuemat E and polypropylene wax are that Shanghai Ke Maide Industrial Co., Ltd. produces.
Hot strength in various embodiments of the present invention, bending strength, bending modulus, impact strength, heat distortion temperature
(1.82MPa) model and manufacturer's information of the instrument and used by measuring thermal conductivity are as follows.
Universal electrical cupping machine: CMT6104 type, group company is newly thought carefully in Shenzhen；
Izodtest instrument: XJV5.5 type, Chengde Jinjian Testing Instrument Co., Ltd.；
Heat distortion temperature analyzer: XWB-300A type, Chengde Ke Cheng testing machine company limited；
Laser heat conducting instrument: LFA 447 type, Nai Chi company of Germany；
Double screw extruder: SHJ-50 type, Nanjing Jieya Extruding Equipment Co., Ltd..
Embodiment 1
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 34.8%
Polyester 8.7%
Nucleator 4%
Heat filling 45%
Carbon fiber 5%
Coupling agent 1%
Antioxidant 1%
Lubricant 0.5%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is poly-2,6-(ethylene naphthalate) (hereinafter referred to as PEN)；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is that granularity is 44um graphite and granularity is 30nm aluminium oxide, calculates in mass ratio, i.e. graphite
With the mixture that aluminium oxide is 2:1 composition；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength with
The ratio of rigidity is 1.5-2.0%；
Described coupling agent is Silane coupling reagent KH-570；
Described antioxidant is irgasfos 168 and antioxidant 1010, calculates in mass ratio, i.e. irgasfos 168: antioxidant
The mixture that 1010 is 3:7 composition；
Described lubricant is paraffin.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, specifically includes following steps:
(1), by 34.8% PET, the polyester of 8.7%, the heat filling of 45%, the nucleator of 4%, the silane coupler of 1%,
High-speed mixer and mixing 5min put into by the antioxidant of 1% and the lubricant of 0.5%, is then added by double screw extruder first paragraph cylinder
Enter；
(2), the carbon fiber of 5% is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1050rpm, temperature is 240 DEG C and carries out extruding pelletization, obtains heat conduction
The PET/ polyester alloy that carbon fibre strengthens.
Embodiment 2
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat filling 40%
Carbon fiber 10%
Coupling agent 1.5%
Antioxidant 1%
Lubricant 0.5%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is PTT (hereinafter referred to as PTT)；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is that granularity is 44um graphite and granularity is 30nm aluminium oxide, calculates in mass ratio, i.e. graphite
With the mixture that aluminium oxide is 7:3 composition；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength with
The ratio of rigidity is 1.5-2.0%；
Described compatilizer is Silane coupling reagent KH-570；
Described antioxidant is irgasfos 168 and antioxidant 1010, calculates in mass ratio, i.e. irgasfos 168: antioxidant
The mixture that 1010 is 3:7 composition；
Described lubricant is Tissuemat E.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, specifically includes following steps:
(1), by 37.4% PET, the polyester of 6.6%, the nucleator of 3%, the heat filling of 40%, the coupling agent of 1.5%, 1%
Antioxidant and 0.5% lubricant put into high-speed mixer and mixing 5min, then by double screw extruder first paragraph cylinder add；
(2), the carbon fiber of 10% is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1100rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains heat conduction
The PET/ polyester alloy that carbon fibre strengthens, i.e. PET/PTT alloy.
Embodiment 3
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat filling 40%
Carbon fiber 10%
Coupling agent 1.5%
Antioxidant 1%
Lubricant 0.5%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is polybutylene terephthalate (PBT) (hereinafter referred to as PBT)；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is that granularity is 44um graphite and granularity is 30nm aluminium oxide, calculates in mass ratio, i.e. graphite
With the mixture that aluminium oxide is 7:3 composition；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength with
The ratio of rigidity is 1.5-2.0%；
Described compatilizer is Silane coupling reagent KH-570；
Described antioxidant is irgasfos 168 and antioxidant 1010, calculates in mass ratio, i.e. irgasfos 168: antioxidant
The mixture that 1010 is 3:7 composition；
Described lubricant is Tissuemat E.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, specifically includes following steps:
(1), by 37.4% PET, the polyester of 6.6%, the heat filling of 40%, the nucleator of 3%, the coupling agent of 1.5%, 1%
Antioxidant and 0.5% lubricant put into high-speed mixer and mixing 5min, then by double screw extruder first paragraph cylinder add；
(2), the carbon fiber of 10% is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1100rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains heat conduction
The PET/ polyester alloy that carbon fibre strengthens, i.e. PET/PBT alloy.
Embodiment 4
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 35.2%
Polyester 8.8%
Nucleator 3%
Heat filling 35%
Carbon fiber 15%
Coupling agent 1.5%
Antioxidant 0.5%
Lubricant 1%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is PTT (hereinafter referred to as PTT)；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is that granularity is 44um graphite and granularity is 30nm aluminium oxide, calculates in mass ratio, i.e. graphite
With the mixture that aluminium oxide is 3:2 composition；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength with
The ratio of rigidity is 1.5-2.0%；
Described coupling agent is Silane coupling reagent KH-570；
Described antioxidant is antioxidant 1010；
Described lubricant is paraffin and polypropylene wax, calculates in mass ratio, i.e. paraffin: polypropylene wax is 1:1 composition
Mixture.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, specifically includes following steps:
(1), by 35.2% PET, the polyester of 8.8%, the nucleator of 3%, the heat filling of 35%, the coupling agent of 1.5%,
High-speed mixer and mixing 3min put into by the antioxidant of 0.5% and the lubricant of 1%, is then added by double screw extruder first paragraph cylinder
Enter；
(2), the carbon fiber of 15% is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1200rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains heat conduction
The PET/ polyester alloy that carbon fibre strengthens, i.e. PET/PTT alloy.
Embodiment 5
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 35.2%
Polyester 8.8%
Nucleator 3%
Heat filling 35%
Carbon fiber 15%
Coupling agent 1.5%
Antioxidant 0.5%
Lubricant 1%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is polybutylene terephthalate (PBT) (hereinafter referred to as PBT)；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is that granularity is 44um graphite and granularity is 30nm aluminium oxide, calculates in mass ratio, i.e. graphite
With the mixture that aluminium oxide is 3:2 composition；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength with
The ratio of rigidity is 1.5-2.0%；
Described coupling agent is Silane coupling reagent KH-570；
Described antioxidant is antioxidant 1010；
Described lubricant is paraffin and polypropylene wax, calculates in mass ratio, i.e. paraffin: polypropylene wax is 1:1 composition
Mixture.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, specifically includes following steps:
(1), by 35.2% PET, the polyester of 8.8%, the nucleator of 3%, the heat filling of 35%, the coupling agent of 1.5%,
High-speed mixer and mixing 4min put into by the antioxidant of 0.5% and the lubricant of 1%, is then added by double screw extruder first paragraph cylinder
Enter；
(2), the carbon fiber of 15% is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1200rpm, temperature is 245 DEG C and carries out extruding pelletization, obtains heat conduction
The PET/ polyester alloy that carbon fibre strengthens, i.e. PET/PBT alloy.
Embodiment 6
The PET/ polyester alloy that a kind of heat conduction carbon fibre strengthens, count by weight percentage, the composition of its raw material and content are such as
Under:
PET 40%
Polyester 4.5%
Nucleator 2%
Heat filling 30%
Carbon fiber 20%
Coupling agent 2%
Antioxidant 0.5%
Lubricant 1%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is polybutylene terephthalate (PBT) (hereinafter referred to as PBT)；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is that graphite and aluminium oxide are in mass ratio for the mixture of 4:1 composition；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength with
The ratio of rigidity is 1.5-2.0%；
Described coupling agent is Silane coupling reagent KH-570；
Described antioxidant is antioxidant 1010；
Described lubricant is Tissuemat E and polypropylene wax, calculates in mass ratio, i.e. paraffin: polypropylene wax is 1:1 group
The mixture become.
The preparation method of the PET/ polyester alloy that above-mentioned a kind of heat conduction carbon fibre strengthens, specifically includes following steps:
(1), by 40% PET, the polyester of 4.5%, the nucleator of 2%, the heat filling of 30%, the coupling agent of 2%, 0.5%
Antioxidant and 1% lubricant put into high-speed mixer and mixing 5min, then by double screw extruder first paragraph cylinder add；
(2), the carbon fiber of 20% is added by the 4th section of cylinder of double screw extruder；
(3), control double screw extruder rotating speed be 1200rpm, temperature is 250 DEG C and carries out extruding pelletization, obtains heat conduction
The PET/ polyester alloy that carbon fibre strengthens, i.e. PET/PBT alloy.
The hot strength of PET/ polyester alloy of heat conduction carbon fibre enhancing, fracture to above-described embodiment 1-6 gained
Percentage elongation, bending strength, bending modulus, impact strength, heat distortion temperature (1.82MPa), molding shrinkage (circle
Sheet) detect, its result see table 1:
The physical property of the PET/ polyester alloy that table 1, the heat conduction carbon fibre of embodiment 1-6 gained strengthen
| Physical property | Unit | Method of testing | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Hot strength | MPa | ASTM D638 | 98.5 | 117.3 | 111.4 | 146.8 | 141.3 | 162.7 |
| Bending strength | MPa | ASTM D790 | 128.8 | 162.2 | 157.3 | 190.1 | 186.2 | 218.5 |
| Bending modulus | MPa | ASTM D790 | 6052.9 | 7360.6 | 7288.0 | 8643.6 | 8431.5 | 10054.3 |
| Notch impact strength | J/m | ASTM D256 | 51.3 | 65.1 | 63.2 | 80.7 | 78.9 | 90.2 |
| Heat distortion temperature (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 |
From table 1 it follows that along with the increase of carbon fiber content, the PET/ polyester alloy that the heat conduction carbon fibre of gained strengthens
The hot strength of material, bending strength, bending modulus, impact strength and heat distortion temperature improve therewith, are indicated above carbon fiber
The mechanical property of content and PET polyester alloy is proportionate trend.
Further, by the comparison of embodiment 3,5,6 is found, used in the PET/ polyester alloy that heat conduction carbon fibre strengthens
PET identical with polyester raw material in the case of, along with the continuous reduction of heat filling content, be down to 30% from 40%, final gained
The thermal conductivity of PET/ polyester alloy material that strengthens of heat conduction carbon fibre do not reduce, raised.And meanwhile, heat conduction
In the PET/ polyester alloy that carbon fibre strengthens, the content of carbon fiber constantly raises, and therefore shows that carbon fiber can effectively strengthen heat conduction carbon
The heat conductivility of the fine PET/ polyester alloy material strengthened.
Further, by embodiment 2-4 and embodiment 3,4-5 are compared discovery, homogeneous at other raw materials composition and content
In the case of Tong, polyester is the heat conduction carbon fibre REINFORCED PET/polyester alloy i.e. PET/PTT of polybutylene terephthalate (PBT) gained
Alloy more advantage in mechanical property, and the heat conduction carbon fibre REINFORCED PET that polyester is polybutylene terephthalate (PBT) gained/poly-
Ester alloy i.e. PET/PBT alloy is then preferable in thermal conductivity.Therefore, different types of polyester is to final residing heat conduction carbon
The impact of the properties of the fine PET/ polyester alloy strengthened also is not quite similar, and should select as the case may be in actual applications
PET is modified by suitably polyester.
In sum, the PET/ polyester alloy that a kind of heat conduction carbon fibre of the present invention strengthens, there is good mechanical property, thermal conductivity
High, and owing to matrix is cheap PET and does not uses compatilizer, its production cost is relatively low.
Further, the PET/ polyester alloy that the heat conduction carbon fibre of the present invention strengthens, owing to have employed suitable nucleator, heat conduction
Filler and coupling agent, enhance the crystal property of polyester, improves the affinity between polyester and heat filling, improves carbon fiber
Dispersibility between resin matrix and interface interaction power, thus optimize the processing characteristics of alloy, heat conductivility and mechanical performance,
Expensive special engineering plastics can be replaced in some occasion, be with a wide range of applications.
The above be only the present invention be preferable to carry out case, it should be noted that for the general technology people in this field
Member, on the premise of without departing from the inventive method, it may also be made that a little supplementing and improvement, and these supplement and improve and also should be regarded as this
The protection domain of invention.
Claims (3)
1. the PET/ polyester alloy that a heat conduction carbon fibre strengthens, it is characterised in that described heat conduction carbon fibre REINFORCED PET/polyester alloy
Count by weight percentage, composition and the content of its raw material are as follows:
PET 34.8-37.4%
Polyester 4.5-6.6%
Nucleator 2-4%
Heat filling 30%-45%
Carbon fiber 5-20%
Coupling agent 1-2%
Antioxidant 0.5-1%
Lubricant 0.5-1%；
Described PET is polyethylene terephthalate, and viscosity is 0.8-0.9dl/g；
Described polyester is PTT, polybutylene terephthalate (PBT) or poly-2,6-naphthalenedicarboxylic acid second two
Alcohol ester；
Described nucleator is the ionomer Surlyn 8920 of du pont company；
Described heat filling is the mixture that granularity is 44 m graphite and granularity is 30nm aluminium oxide composition；
Described carbon fiber is hot strength 3000-4000MPa, and hot strength is fine with the carbon that ratio is 1.5-2.0% of rigidity
Dimension；
Described coupling agent is KH-570 type silane coupler；
Described antioxidant 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, Tissuemat E and polypropylene wax.
The PET/ polyester alloy that a kind of heat conduction carbon fibre the most as claimed in claim 1 strengthens, it is characterised in that by weight percentage
Calculating, composition and the content of its raw material are as follows:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat filling 40%
Carbon fiber 10%
Coupling agent 1.5%
Antioxidant 1%
Lubricant 0.5%；
Described polyester is PTT；
Described heat filling is that granularity is 44 m graphite and granularity is that 30nm aluminium oxide is in mass ratio for the mixing of 7:3 composition
Thing；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength and rigidity
Ratio be 1.5-2.0%；
Described antioxidant is that irgasfos 168 and antioxidant 1010 are in mass ratio for the mixture of 3:7 composition；
Described lubricant is Tissuemat E.
The PET/ polyester alloy that a kind of heat conduction carbon fibre the most as claimed in claim 1 strengthens, it is characterised in that by weight percentage
Calculating, composition and the content of its raw material are as follows:
PET 37.4%
Polyester 6.6%
Nucleator 3%
Heat filling 40%
Carbon fiber 10%
Coupling agent 1.5%
Antioxidant 1%
Lubricant 0.5%；
Described polyester is polybutylene terephthalate (PBT)；
Described heat filling is that granularity is 44 m graphite and granularity is that 30nm aluminium oxide is in mass ratio for the mixing of 7:3 composition
Thing；
Described carbon fiber is high-strength carbon fiber T300, and its hot strength is 3000-4000MPa, its hot strength and rigidity
Ratio be 1.5-2.0%；
Described antioxidant is that irgasfos 168 and antioxidant 1010 are in mass ratio for the mixture of 3:7 composition；
Described lubricant is Tissuemat E.
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| 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 |
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