CN115785640A - Special composite material for high-temperature-resistant antistatic tray and preparation method thereof - Google Patents
Special composite material for high-temperature-resistant antistatic tray and preparation method thereof Download PDFInfo
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- CN115785640A CN115785640A CN202211569633.5A CN202211569633A CN115785640A CN 115785640 A CN115785640 A CN 115785640A CN 202211569633 A CN202211569633 A CN 202211569633A CN 115785640 A CN115785640 A CN 115785640A
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- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000004417 polycarbonate Substances 0.000 claims abstract description 25
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 24
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 15
- 239000011231 conductive filler Substances 0.000 claims abstract description 14
- 239000011256 inorganic filler Substances 0.000 claims abstract description 13
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 13
- 229920000106 Liquid crystal polymer Polymers 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910021389 graphene Inorganic materials 0.000 claims description 10
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 9
- 239000002041 carbon nanotube Substances 0.000 claims description 9
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 9
- -1 siloxane units Chemical group 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 239000002064 nanoplatelet Substances 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000006082 mold release agent Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical group C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229920001230 polyarylate Polymers 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000003078 antioxidant effect Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 3
- 125000000732 arylene group Chemical group 0.000 description 3
- 125000005587 carbonate group Chemical group 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003017 thermal stabilizer Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004974 Thermotropic liquid crystal Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Abstract
The invention discloses a special composite material for a high-temperature-resistant antistatic tray, which comprises the following components in percentage by weight: 10-30% of homopolycarbonate; 5-15% of a polycarbonate-polysiloxane copolymer; 30-70% high heat polycarbonate; 1-5% of a liquid crystalline polymer; 2-8% of conductive filler; 0-5% of an inorganic filler; 0.5-2% of other additives. The invention also discloses a preparation method of the special composite material for the high-temperature-resistant antistatic tray. The beneficial effects of the invention are: from the aspects of formula design and high-performance modification, the composite material with high heat resistance, excellent mechanical property and low warpage is prepared under the condition of fully meeting the antistatic requirement.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a special composite material for a high-temperature-resistant antistatic tray and a preparation method thereof.
Background
The antistatic tray is a common tool for storing precise electronic components, is usually made of modified plastics, and has a surface resistance value of 10 6 To 10 11 Correspondingly, the finished product has static dissipation performance, and can effectively release static charges accumulated on the surface of an object, so that the static charges can not be accumulated and have high potential difference. In addition, the finished product must have high mechanical strength and durability depending on the requirements of the application scenarioHeat, impact resistance, chemical resistance, and antistatic properties are not changed by time and temperature. According to the type requirements of electronic components of customers, the specifications and sizes of the finished products of the antistatic trays have different requirements. Antistatic trays are mostly suitable for containers for turnover storage of electronic products, precision components and the like, and are widely used for assembly of liquid crystals, mobile phone modules, panels, TFTs, electronic devices and the like. The antistatic tray can help to complete the universal and integrated management of turnover and storage of electronic elements, and is a necessary product for modern production management of production and circulation enterprises.
The temperature resistance of the antistatic tray commonly used at present is below 120 ℃, and many antistatic trays are even lower than 100 ℃. In some special application scenarios, the tray is required to have good antistatic performance at high temperature, and the requirement for dimensional precision (such as warpage) is also very high. Conventional antistatic tray products have difficulty meeting the needs of these special applications.
Disclosure of Invention
Aiming at the problems, the invention prepares the special composite material for the high-temperature-resistant antistatic tray from the aspects of formula design and high-performance modification.
The invention also aims to provide a preparation method of the special composite material for the high-temperature-resistant antistatic tray.
In order to achieve the purpose, the invention adopts the technical scheme that: a special composite material for a high-temperature-resistant antistatic tray is mainly prepared from the following components in percentage by weight: 10 to 30wt% of a homopolycarbonate; 5 to 15 weight percent of a polycarbonate-polysiloxane copolymer; 30 to 70 weight percent of a high heat polycarbonate; 1-5wt% of a liquid crystalline polymer; 2-8wt% of a conductive filler; 0-5wt% of an inorganic filler; 0.5-2 wt.% of other additives.
Preferably, the weight percentage of the polycarbonate-polysiloxane copolymer is 8-12%.
Preferably, the weight percentage of the high heat polycarbonate is 40-70%; further preferably 50 to 70%; more preferably 55-70%; still more preferably 60 to 65%.
Preferably, the weight percentage of the liquid crystal polymer is 1 to 3 percent.
Preferably, the weight percentage of the conductive filler is 3 to 8%, and more preferably 3 to 5%.
When the inorganic filler is added, the weight percentage of the inorganic filler is preferably 0.5 to 5 percent; further preferably 1 to 5%; still more preferably 2 to 4%.
In the present invention, the homopolycarbonate may be one or a mixture of two of aliphatic polycarbonate, alicyclic polycarbonate and aromatic polycarbonate. In the present invention, suitable homopolycarbonates can be prepared by methods such as interfacial polymerization and melt polymerization. In a particular embodiment, the polycarbonate is a linear homopolymer derived from bisphenol a, i.e., a polycarbonate comprising bisphenol a structures. The polycarbonate has a weight average molecular weight of about 18000 to about 35000 as determined by gel permeation chromatography. Preferably, the homopolycarbonate is an aromatic polycarbonate having a bisphenol A structure, and has a melt index of 4 to 20g/10min, as measured at 300C under 1.2 Kg.
In the present invention, the polycarbonate-polysiloxane copolymer contains a polycarbonate block comprising a repeating unit represented by the following general formula (I) and a polyorganosiloxane block comprising a repeating unit represented by the following general formula (II):
wherein R is a And R b Can each represent H, halogen, C 1 -C 12 An alkyl group, or a combination thereof. For example, R a And R b Can be each H, C 1 -C 3 An alkyl group, particularly a methyl group, is ortho to the hydroxy (O-attached to the phenyl ring) group on each arylene group. As a particularly preferred embodiment, R a And R b Is H. p and q are each independently an integer of 0 to 4. X may be a bridging group connecting two hydroxy-substituted aromatic groups, wherein the bridging group and the hydroxy substituent of each C6 arylene group are ortho, meta to each otherThe para or para position is arranged on the C6 arylene group. X may be methylene or alkyl (such as methyl) substituted methylene (-CH (CH) 3 ) 2 -)。
Wherein R is 1 And R 2 Each independently represents a hydrogen atom, a halogen atom or C 1 -C 6 Alkyl (e.g., methyl, ethyl, propyl, isopropyl, etc.), C 1 -C 6 Alkoxy (e.g. methoxy, ethoxy, etc.) or C 6 -C 12 Aryl groups (such as phenyl, substituted phenyl, etc.). As a specific preference, the R 1 And R 2 Each independently selected methyl.
In the present invention, the polycarbonate-polysiloxane copolymer may comprise 50-99 weight percent of carbonate units and 1 to 50 weight percent of siloxane units. Within this range, the polycarbonate-polysiloxane copolymer can comprise 65-99 weight percent carbonate units and 1-35 weight percent siloxane units, more specifically 70-98 weight percent carbonate units and 2-30 weight percent siloxane units, more specifically 5 to 30 weight percent siloxane units, and still more specifically 10-30 weight percent siloxane units.
Preferably, the polycarbonate unit in the polycarbonate-polysiloxane copolymer is a polycarbonate unit structure of bisphenol A structure.
The weight-average molecular weight of the polycarbonate-polysiloxane copolymer is 20000-40000.
In the present invention, the high heat polycarbonate is a coalesced structure having a heat distortion temperature of 150 ℃ or higher as measured at a heating rate of 20 ℃/min according to ASTM D648.
In the present invention, the liquid crystal polymer is a thermotropic liquid crystal polymer having a structure of a wholly aromatic liquid crystal polyester (liquid crystal polyarylate). Preferably, the wholly aromatic liquid crystalline polyester is polymerized mainly from p-hydroxybenzoic acid, 4-biphenol and phenylenediamine.
In the invention, the conductive filler is selected from one or a mixture of two of conductive carbon black, graphene micro-sheets and carbon nanotubes, and the total addition amount of the conductive filler is less than 10wt% of the total weight of the composition. Preferably, the conductive filler is graphene nanoplatelets and carbon nanotubes, and the weight ratio of the graphene nanoplatelets to the carbon nanotubes is 1:4 to 1:2.
in the invention, the inorganic filler comprises one or more of kaolin, talcum powder, wollastonite, silica and mica. Preferably, the inorganic fillers used are kaolin and talc, having an average particle size of 0.5 to 2.5 μm.
In the present invention, the other additives include one or a combination of more of the above additives among a stabilizer, an antioxidant, a mold release agent, and a colorant. In various embodiments, the antioxidant comprises a primary antioxidant and a secondary antioxidant. In a further embodiment, the antioxidant is present in the system in an amount of about 0.01wt% to about 0.5 wt%. In various embodiments, the stabilizer is present in the system in an amount of 0.01wt% to about 0.5 wt%. In further embodiments, the stabilizer may comprise a heat stabilizer and a light stabilizer. Suitable thermal stabilizers include hindered phenols, organic phosphites, phosphates, or a combination comprising at least one of the foregoing thermal stabilizers. Suitable mold release agents in the present invention may comprise metal stearates, polyethylene waxes, silicones, and the like, or combinations comprising at least one of the foregoing mold release agents.
The invention has the beneficial effects that: from the aspects of formula design and high-performance modification, the composite material with high heat resistance, excellent mechanical property and low warpage is prepared under the condition of fully meeting the antistatic requirement.
The experimental results show that the thermal deformation temperature of the composite material obtained by the invention is above 140 ℃, and the surface resistance is 10 9 At the same time, the material strength and modulus are well balanced. Furthermore, after the sample prepared by the method is treated at 140 ℃ for 24 hours, the surface resistance of the sample is not obviously changed, and the surface of a workpiece is not warpedAnd the comprehensive requirements of the tray on heat resistance, static resistance and size stability of the material under the high-temperature condition can be completely met.
Detailed Description
In order to more particularly describe the summary of the invention, reference will now be made to the following examples.
The polycarbonate used in the comparative examples and examples was a bisphenol A Polycarbonate (PC) resin product commercially available from Dionto corporation having an MFR of 8g/min at 300 ℃ under 1.2 Kg.
The polycarbonate-polysiloxane copolymer used in the comparative examples and examples was Gansu silver light SL0301 (PC-ST).
The high heat polycarbonate used in the comparative example and example had a heat distortion temperature of 162 deg.C (HT-PC-1) and 152 deg.C (HT-PC-2), respectively, under conditions of 1.82MPa and a bar thickness of 6.4 mm.
The Liquid Crystal Polymer (LCP) used in the comparative example and example was Nanjing Qing Ming Polymer New Material Co., ltd.L 20.
The conductive fillers used in the comparative examples and examples, graphene nanoplatelets and carbon nanotubes, were Xiamena KNG-T181 (Xiamena graphene technology Co., ltd.) and Shandong Dazhang GC-21 (Shandong Dazhang Nanometric materials Co., ltd.).
The inorganic filler used in the comparative examples and examples was kaolin Polyfil HG90 (U.S. KaMin).
The total amount of the materials in the comparative examples and examples is 10kg, and the other components in the comparative examples and examples include antioxidants Irgafos 168 and Irgafos 1010, etc., and the addition amount is the prior art.
The polycarbonate, the polycarbonate-polysiloxane copolymer, the high heat polycarbonate, the liquid crystal polymer, the conductive filler, the inorganic filler and other additives were weighed in proportion in tables 1 and 2, and put into a high-speed mixer to be premixed for 5 minutes at high speed. Adding the raw material mixture premixed in a high-speed mixer through a main feed, and carrying out melting, mixing, extruding, cooling, drying and granulating in a double-screw extruder, wherein the screw temperature of the double-screw extruder is controlled to be 310-340 ℃. Then, the extruded pellets were subjected to air-blast drying at 100 ℃ for 4 hours and injection molding to evaluate the properties of the materials. The test criteria are as follows:
testing the heat distortion temperature: ASTM D648
And (3) tensile test: ASTM D638
And (3) testing the bending property: ASTM D790
And (3) impact property testing: ASTM D256
And (3) surface resistance testing: ASTM D257
TABLE 1
As can be seen from the test results shown in Table 1, in comparative examples 1 to 4, the heat distortion temperature of the material was significantly increased with the introduction of the high heat polycarbonate and the gradual increase of the addition amount, while the notched impact strength showed a decreasing tendency. The surface resistance test result shows that the composite material does not have antistatic capability. In example 1, with the addition of the conductive fillers graphene and carbon nanotubes, the surface resistance of the material is significantly reduced, but still stays at the same level>10 9 The level of (c). Surprisingly, in examples 2 and 3, the surface resistance of the composite system showed a significant tendency to decrease with the introduction of the liquid crystal polymer. For this reason, this phenomenon should be associated with a change in the flow field during processing of the composite system, the presence of the liquid crystal improving the distribution of the conductive filler on the surface.
TABLE 2
In table 2, we further examined the effects of different high-heat polycarbonates, the compounding and synergy of graphene nanoplatelets and carbon nanotubes, and the introduction of inorganic fillers to improve the dimensional stability (no warpage after injection molding) of the injection molded articles of the composite system. As can be seen from the experimental results, the samples in the examples have heat distortion temperatures of 140 ℃ or higher and surface resistances of 10 9 At the same time, eachThe strength and modulus of the sample are well balanced.
It should be noted that, after the samples of examples 4-8 in table 2 are processed at 140 ℃ for 24 hours, the surface resistance of the samples has no obvious change, and the surfaces of the parts have no warping phenomenon, so that the comprehensive requirements of the trays on heat resistance, static resistance and dimensional stability of the materials under high temperature conditions can be completely met.
Claims (10)
1. The special composite material for the high-temperature-resistant antistatic tray is characterized by mainly comprising the following components: the polycarbonate-polysiloxane composite material comprises homopolycarbonate, polycarbonate-polysiloxane copolymer, high-heat polycarbonate, liquid crystal polymer, conductive filler, inorganic filler and other additives, wherein the components in percentage by weight are as follows:
2. the special composite material for the high-temperature-resistant antistatic tray as claimed in claim 1, wherein the homopolycarbonate is aromatic polycarbonate containing a bisphenol A structure, and the melt index is 4-20g/10min measured at 300 ℃ and 1.2 Kg.
3. The composite material special for the high-temperature-resistant antistatic tray as claimed in claim 1, wherein the polycarbonate-polysiloxane copolymer comprises 1-50 weight percent of siloxane units.
4. The composite material for high temperature resistant antistatic trays of claim 1 wherein the high heat polycarbonate is a co-agglomerated structure having a heat distortion temperature of 150 ℃ or higher measured at a heating rate of 20 ℃/min according to standard ASTM D648.
5. The composite material special for the high-temperature-resistant antistatic tray as claimed in claim 1, wherein the liquid crystal polymer is liquid crystal polyarylate.
6. The composite material special for the high-temperature-resistant antistatic tray as claimed in claim 1, wherein the conductive filler is selected from one or more of conductive carbon black, graphene micro-sheets and carbon nanotubes.
7. The special composite material for the high-temperature-resistant antistatic tray as claimed in claim 6, wherein the conductive filler is graphene nanoplatelets and carbon nanotubes, and the weight ratio of the graphene nanoplatelets to the carbon nanotubes is 1:4 to 1:2.
8. the special composite material for the high-temperature-resistant antistatic tray as claimed in claim 1, wherein the inorganic filler comprises one or more of kaolin, talcum powder, wollastonite, silica and mica, and the weight percentage of the inorganic filler is 0.5-5%.
9. The composite material for a high temperature resistant antistatic tray as claimed in claim 1, wherein the other additives comprise one or more of stabilizers, mold release agents, antioxidants, colorants.
10. The method for preparing the special composite material for the high-temperature-resistant antistatic tray as claimed in any one of claims 1 to 9, characterized in that homopolycarbonate, polycarbonate-polysiloxane copolymer, high-heat polycarbonate, liquid crystal polymer, conductive filler, inorganic filler and other additives are premixed uniformly according to a metering ratio, and are subjected to melt blending extrusion granulation by an extruder to obtain the special composite material for the high-temperature-resistant antistatic tray.
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| CN202211569633.5A CN115785640A (en) | 2022-12-08 | 2022-12-08 | Special composite material for high-temperature-resistant antistatic tray and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017131317A1 (en) * | 2016-01-26 | 2017-08-03 | 주식회사 엘지화학 | Antistatic tray and manufacturing method therefor |
| CN109153844A (en) * | 2016-05-26 | 2019-01-04 | 沙特基础工业全球技术有限公司 | High fever HI high impact polycarbonate compositions and the product being made from it |
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- 2022-12-08 CN CN202211569633.5A patent/CN115785640A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017131317A1 (en) * | 2016-01-26 | 2017-08-03 | 주식회사 엘지화학 | Antistatic tray and manufacturing method therefor |
| CN109153844A (en) * | 2016-05-26 | 2019-01-04 | 沙特基础工业全球技术有限公司 | High fever HI high impact polycarbonate compositions and the product being made from it |
Non-Patent Citations (1)
| Title |
|---|
| HEE YOUNG LEE ET AL.: "Effects of incorporation of polyester on the electrical resistivity of polycarbonate/multi-walled carbon nanotube nanocomposite", JOURNAL OF COMPOSITE MATERIALS, vol. 53, no. 10, pages 1291 * |
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