CN111849141A - Transparent PC/polyester alloy capable of being subjected to low-temperature injection molding and preparation method thereof - Google Patents
Transparent PC/polyester alloy capable of being subjected to low-temperature injection molding and preparation method thereof Download PDFInfo
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- CN111849141A CN111849141A CN202010669273.0A CN202010669273A CN111849141A CN 111849141 A CN111849141 A CN 111849141A CN 202010669273 A CN202010669273 A CN 202010669273A CN 111849141 A CN111849141 A CN 111849141A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 39
- 239000000956 alloy Substances 0.000 title claims abstract description 35
- 238000001746 injection moulding Methods 0.000 title claims abstract description 27
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000010452 phosphate Substances 0.000 claims abstract description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 20
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 230000004580 weight loss Effects 0.000 claims abstract description 3
- 239000004417 polycarbonate Substances 0.000 claims description 79
- 238000000034 method Methods 0.000 claims description 14
- 229920001225 polyester resin Polymers 0.000 claims description 12
- 239000004645 polyester resin Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- -1 PCTG Chemical compound 0.000 claims description 7
- 229920005668 polycarbonate resin Polymers 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004431 polycarbonate resin Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 3
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims description 2
- FDSYTWVNUJTPMA-UHFFFAOYSA-N 2-[3,9-bis(carboxymethyl)-3,6,9,15-tetrazabicyclo[9.3.1]pentadeca-1(15),11,13-trien-6-yl]acetic acid Chemical compound C1N(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC2=CC=CC1=N2 FDSYTWVNUJTPMA-UHFFFAOYSA-N 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003508 Dilauryl thiodipropionate Substances 0.000 claims description 2
- 239000002656 Distearyl thiodipropionate Substances 0.000 claims description 2
- 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 claims description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- ZJIPHXXDPROMEF-UHFFFAOYSA-N dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O ZJIPHXXDPROMEF-UHFFFAOYSA-N 0.000 claims description 2
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 claims description 2
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims description 2
- 235000019305 distearyl thiodipropionate Nutrition 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 230000009477 glass transition Effects 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- PZRWFKGUFWPFID-UHFFFAOYSA-N 3,9-dioctadecoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound C1OP(OCCCCCCCCCCCCCCCCCC)OCC21COP(OCCCCCCCCCCCCCCCCCC)OC2 PZRWFKGUFWPFID-UHFFFAOYSA-N 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims 1
- 229920000515 polycarbonate Polymers 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000001308 synthesis method Methods 0.000 claims 1
- 238000005809 transesterification reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 15
- 229920005989 resin Polymers 0.000 abstract description 12
- 239000011347 resin Substances 0.000 abstract description 12
- 239000004014 plasticizer Substances 0.000 abstract description 2
- 208000016261 weight loss Diseases 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 14
- 238000005303 weighing Methods 0.000 description 14
- 229920001634 Copolyester Polymers 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical group 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GXURZKWLMYOCDX-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol;dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O.OCC(CO)(CO)CO GXURZKWLMYOCDX-UHFFFAOYSA-N 0.000 description 1
- WSEFPKKOUNRCAJ-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol;octadecanoic acid Chemical compound OCC(CO)(CO)CO.CCCCCCCCCCCCCCCCCC(O)=O WSEFPKKOUNRCAJ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a transparent PC/polyester alloy capable of being injected at low temperature and a preparation method thereof; the alloy comprises the following components in parts by weight: 40-75 parts of PC resin, 15-55 parts of polyester, 5-10 parts of phosphate, 0.1-1 part of antioxidant and 0.1-1 part of lubricant. During preparation, the PC resin, the polyester, the phosphate, the antioxidant and the lubricant are added into a mixing stirrer for mixing; and then feeding the obtained mixture into a double-screw extruder through a weight-loss feeding machine, and blending and granulating the mixture through the double-screw extruder to obtain the transparent PC/polyester alloy material capable of being subjected to low-temperature injection molding. According to the invention, the high-flow polyester and the phosphate plasticizer which are better in compatibility with PC are added, so that the overall processability and flowability of PC are improved, the injection molding temperature of PC is reduced, and the overall transparency and toughness of the material are not influenced.
Description
Technical Field
The invention belongs to the fields of polymer blending and polymer molding processing, and particularly relates to a transparent PC/polyester alloy capable of being subjected to low-temperature injection molding and a preparation method thereof.
Background
The PC is an engineering plastic which has good rigidity, excellent toughness and high performance, and has extremely high transparency, and the rigid structure on the molecular chain determines that the PC has good creep resistance, excellent dimensional stability and high heat resistance. However, the excellent characteristics brought by the molecular structure of PC also result in stronger internal stress and higher processing temperature of PC in the actual processing process
PC is favored by material selection in many use occasions due to higher transparency and various excellent properties of PC, but in the actual production process of PC, the stronger internal stress and higher processing temperature of PC cause various problems in application. The high internal stress can lead to the transparent product of moulding plastics to have the multicolour phenomenon, probably produces stress cracking phenomenon in high low temperature practical application, and the existence of product internal stress also can lead to the screw hole position to have the phenomenon of bursting simultaneously, and these all have very big potential safety hazard. Higher processing temperature means higher production cost, and meanwhile, the use of transparent materials for INS transfer printing atmosphere lamp effect is often faced with the phenomenon that a membrane is destroyed by high-temperature flushing of PC, while the substituted transparent ABS and PMMA are too brittle, so that the method is not suitable for wide-use occasions
The invention achieves the purposes of reducing the internal stress of PC and the injection molding temperature by adding the copolyester which has good compatibility with PC and excellent processing performance and the phosphate plasticizer, and on the other hand, the flexible molecular chain of the copolyester also has good toughening effect, thereby ensuring that the PC can still keep good self-toughness while the processing temperature is reduced.
Disclosure of Invention
The invention aims to provide a transparent PC/polyester alloy capable of being injected at low temperature. Another object of the present invention is to provide a method for preparing a transparent PC/polyester alloy that can be injection molded at low temperature.
The purpose of the invention is realized by the following technical scheme:
the transparent low-temperature injection-moldable PC/polyester alloy composition comprises the following components in parts by weight:
preferably, the relative molecular weight of the PC resin is 18000-32000 g/mol.
Preferably, the glass transition temperature of the PC resin is 140-150 ℃.
Preferably, the method for synthesizing the PC resin may be a phosgene method and an ester exchange method.
The polyester resin is selected from copolyester; the copolyester was a PET in which different amounts of acid and alcohol were partially replaced with different amounts of CHDM (1, 4-cyclohexanedimethanol) and other acids.
Preferably, the polyester resin is at least one of PCTA, PCTG and PETG.
The phosphate is at least one of phosphate or alcohol derivatives.
Preferably, the phosphate is at least one of polyphosphate, oligomeric aryl phosphate and triphenyl phosphate.
Preferably, the antioxidant is one or a mixture of more of 2, 6-di-tert-butyl-4-methylphenol, octadecyl beta- (3, 5-di-tert-butyl-4-hydroxy-phenyl) propionate, dilauryl thiodipropionate, distearyl thiodipropionate, tris (2, 4-di-tert-butylphenyl) phosphite, bis (2, 4-di-tert-butyl) tetraol diphosphite and pentaerythritol diphosphite dioctadecyl ester.
Preferably, the lubricant is one or a mixture of silane polymer, fatty acid salt, fatty acid amide, stearic acid, butyl stearate, oleamide and ethylene bisstearamide.
The invention also aims to provide a preparation method of the transparent low-temperature injection-moldable PC polyester alloy material, which comprises the following steps:
s1, adding the polycarbonate resin, the polyester resin, the phosphate, the antioxidant and the lubricant into a mixer for mixing;
s2, feeding the mixture obtained in the step S1 into an extruder through a weight loss type feeder, and blending and granulating through a double-screw extruder to obtain the transparent PC/polyester alloy particles capable of being subjected to low-temperature injection molding.
Preferably, the temperature of a machine barrel of the double-screw extruder is 200-250 ℃, and the rotating speed of a screw is 300-700 rpm.
The action mechanism of the invention is as follows: the high steric hindrance in the PC material molecule is reduced by virtue of the good compatibility of the copolyester flexible molecular chain and the benzene ring in the polyester molecule and the PC molecule, so that the integral internal stress of a material system is reduced, the injection molding temperature of the PC material is reduced, meanwhile, the copolyester close to the refractive index of the PC material is selected, the transparent characteristic of the PC material is kept, and the excellent toughness of the PC material is kept by utilizing the copolyester flexible chain segment. The phosphate micromolecules can play a self-lubricating role in the macromolecular chains, so that the friction among the macromolecular chains is reduced; the action mechanism of the phosphate in the system is unexpectedly found in tests, so that the high transparency of the PC can be maintained, and the injection molding temperature of the PC can be remarkably reduced.
Compared with the prior art, the invention has the beneficial effects that:
the transparent low-temperature injection molding PC polyester alloy not only keeps the original high transparency of PC, but also improves the flow length ratio by 3.5 times on the original basis under the condition that the injection molding temperature of the PC is reduced by 30-50 ℃, simultaneously keeps the toughness of the PC, and solves the safety problem caused by larger internal stress in PC injection molding and the problem of membrane washout in INS process.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
In the invention, the polyester resin is at least one of PET or PBT copolyester, such as TX1001, K2012 and S2008 of Issman, and can also be JN200 and YF300 of SK. The following examples and comparative examples select TX1001 of Issman.
The phosphate is at least one of alcohol or ester derivatives of phosphoric acid, such as HONGRUI chemical RH-300W, ZHEJIANG WANSHENG RC200, and also can be triphenyl phosphate TPP. The following examples and comparative examples were selected from Hongrui chemical RH-300W.
The antioxidant is one or more of Irganox 168, 1010 and 1076 from Ciba company; irganox 168 is selected for the following examples and comparative examples.
The lubricant is one or a mixture of more of commercially available N, N-ethylene bis stearamide, pentaerythritol stearic acid and methylene bis stearamide. The following examples and comparative examples select N, N-ethylene bis stearamide.
Example 1
The embodiment relates to a transparent low-temperature injection molding PC polyester alloy material, which comprises the following preparation methods:
a. weighing the following raw materials in parts by weight:
the preparation method comprises the following steps:
b. weighing the corresponding raw materials according to the components and the weight;
c. then mixing the PC resin, the polyester resin, the phosphate, the antioxidant and the lubricant in a mixer;
d. and c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent low-temperature injection molding PC polyester alloy particles, wherein the barrel temperature of the extruder is 225 ℃, and the rotating speed of the screw is 500 rpm.
Example 2
The embodiment relates to a transparent low-temperature injection molding PC polyester alloy material, which comprises the following preparation methods:
a. weighing the following raw materials in parts by weight:
b. weighing the corresponding raw materials according to the components and the weight;
c. Then mixing the PC resin, the polyester resin, the phosphate, the antioxidant and the lubricant in a mixer;
d. and c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent low-temperature injection molding PC polyester alloy particles, wherein the barrel temperature of the extruder is 200 ℃, and the rotating speed of the screw is 700 rpm.
Example 3
The embodiment relates to a transparent low-temperature injection molding PC polyester alloy material, which comprises the following preparation methods:
a. weighing the following raw materials in parts by weight:
b. weighing the corresponding raw materials according to the components and the weight;
c. then mixing the PC resin, the polyester resin, the phosphate, the antioxidant and the lubricant in a mixer;
d. and c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent low-temperature injection molding PC polyester alloy particles, wherein the barrel temperature of the extruder is 250 ℃, and the rotating speed of the screw is 300 rpm.
Example 4
The embodiment relates to a transparent low-temperature injection molding PC polyester alloy material, which comprises the following preparation methods:
a. weighing the following raw materials in parts by weight:
b. weighing the corresponding raw materials according to the components and the weight;
c. then mixing the PC resin, the polyester resin, the phosphate, the antioxidant and the lubricant in a mixer;
d. And c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent low-temperature injection molding PC polyester alloy particles, wherein the barrel temperature of the extruder is 220 ℃, and the rotating speed of the screws is 600 rpm.
Comparative example 1
This comparative example is a conventional PC and was prepared as follows:
a. weighing the following raw materials in parts by weight:
100 parts of PC (polycarbonate) resin,
0.1 part of an antioxidant, namely,
0.1 part of lubricant
b. Weighing the corresponding raw materials according to the components and the weight;
c. then mixing the PC resin, the antioxidant and the lubricant in a mixer;
d. and c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent PC particles, wherein the barrel temperature of the extruder is 225 ℃, and the screw rotating speed is 500 rpm.
Comparative example 2
The comparative example relates to a transparent low-temperature injection molding PC polyester alloy material, and the preparation method comprises the following steps:
a. weighing the following raw materials in parts by weight:
the preparation method comprises the following steps:
b. weighing the corresponding raw materials according to the components and the weight;
c. then mixing the PC resin, the polyester resin, the phosphate, the antioxidant and the lubricant in a mixer;
d. And c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent PC polyester alloy particles, wherein the barrel temperature of the extruder is 225 ℃, and the screw rotating speed is 500 rpm.
Comparative example 3
The comparison relates to a transparent low-temperature injection molding PC polyester alloy material, which is prepared by the following steps:
a. weighing the following raw materials in parts by weight:
b. weighing the corresponding raw materials according to the components and the weight;
c. then mixing the PC resin, the polyester resin, the phosphate, the antioxidant and the lubricant in a mixer;
d. and c, blending and granulating the mixture obtained in the step c through a double-screw extruder to obtain transparent PC polyester alloy particles, wherein the barrel temperature of the extruder is 225 ℃, and the screw rotating speed is 500 rpm.
The main physical property indexes of the transparent PC polyester alloy materials prepared in the above examples 1-4 and comparative examples 1-3, which can be injection molded at low temperature, are tested according to the relevant test standards, such as tensile strength, bending modulus, notched Izod impact strength (23 ℃), flow length ratio (injection molding temperature 260 ℃), and light transmittance, and the test standards and test results are shown in Table 1:
TABLE 1 results of physical Property index test of materials of examples 1-4 and comparative examples 1-3
In conclusion, the method is simple and easy to implement, high steric hindrance in PC material molecules is reduced by virtue of good compatibility of the molecular chain of the copolyester flexibility and the benzene ring in the polyester molecules with the PC molecules, so that the overall internal stress of a material system is reduced, the injection molding temperature of the PC material is reduced, meanwhile, the copolyester close to the light refractive index of the PC material is selected, the transparent characteristic of the PC material is kept, and the excellent toughness of the PC material is kept by utilizing the copolyester flexible chain segment. The phosphate micromolecules can play a self-lubricating role in macromolecular chains, and the friction among the macromolecular chains is reduced, so that the PC injection molding temperature and the injection molding stress of the PC can be greatly reduced on the basis of keeping the transparency, high rigidity and high toughness of the PC, the potential safety hazard problem caused by the internal stress problem in the actual production and use process of the PC is solved, and the membrane washout proportion in the INS process is greatly reduced.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A transparent low-temperature injection-moldable PC/polyester alloy composition is characterized by comprising the following components in parts by weight:
2. the transparent low-temperature injection-moldable PC/polyester alloy composition according to claim 1, wherein the polycarbonate resin has a relative molecular weight of 18000-32000 g/mol.
3. The transparent low-temperature injection-moldable PC/polyester alloy composition of claim 1, wherein the polycarbonate resin has a glass transition temperature of 140 to 150 ℃.
4. The transparent low temperature injection moldable PC/polyester alloy composition of claim 1, wherein the polycarbonate synthesis method comprises phosgene method, transesterification method.
5. The transparent low temperature injection moldable PC/polyester alloy composition of claim 1, wherein said polyester resin is at least one of PCTA, PCTG, PETG.
6. The transparent low temperature injection moldable PC/polyester alloy composition of claim 1, wherein the phosphate is at least one of polyphosphate, oligomeric aryl phosphate, triphenyl phosphate.
7. The transparent low temperature injection moldable PC/polyester alloy composition of claim 1, wherein the antioxidant is one or a mixture of 2, 6-di-t-butyl-4-methylphenol, octadecyl β - (3, 5-di-t-butyl-4-hydroxy-phenyl) propionate, dilauryl thiodipropionate, distearyl thiodipropionate, tris (2, 4-di-t-butylphenyl) phosphite, bis (2, 4-di-t-butyl) quarternary alcohol diphosphite, and distearyl pentaerythritol diphosphite.
8. The transparent low temperature injection moldable PC/polyester alloy composition of claim 1, wherein said lubricant is one or a mixture of silane polymer, fatty acid salt, fatty acid amide, stearic acid, butyl stearate, oleamide, ethylene bis stearamide, polyolefin wax.
9. A method for preparing the transparent low temperature injection moldable PC/polyester alloy composition of claim 1, comprising the steps of:
s1, adding the polycarbonate resin, the polyester resin, the phosphate, the antioxidant and the lubricant into a mixer for mixing;
s2, feeding the mixture obtained in the step S1 into an extruder through a weight loss type feeder, and blending and granulating through a double-screw extruder to obtain the transparent PC/polyester alloy particles capable of being subjected to low-temperature injection molding.
10. The method for preparing the polypropylene composition according to claim 9, wherein the barrel temperature of the twin-screw extruder is 200 to 250 ℃ and the screw rotation speed is 300 to 700 rpm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112724634A (en) * | 2020-12-25 | 2021-04-30 | 深圳力越新材料有限公司 | PC-PCTG alloy and preparation method and application thereof |
| CN112778740A (en) * | 2021-01-10 | 2021-05-11 | 深圳市富恒新材料股份有限公司 | Chemical-resistant transparent polycarbonate composite material with high glowing filament ignition temperature and preparation method thereof |
| CN114539740A (en) * | 2022-04-14 | 2022-05-27 | 沃德夫聚合物(上海)有限公司 | PETG-PC alloy with high light transmittance and high toughness as well as preparation method and application thereof |
| CN115286914A (en) * | 2022-08-30 | 2022-11-04 | 广东锦湖日丽高分子材料有限公司 | High-impact transparent low-temperature-formable PC alloy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050137360A1 (en) * | 2003-12-19 | 2005-06-23 | General Electric Company | Clear polycarbonate polyester blend |
| JP2008222774A (en) * | 2007-03-09 | 2008-09-25 | Mitsubishi Chemicals Corp | Resin composition and resin molded article |
| CN102666702A (en) * | 2009-09-30 | 2012-09-12 | 拜尔材料科学股份公司 | Polycarbonate compositions with improved optical properties |
| CN107739500A (en) * | 2016-08-26 | 2018-02-27 | 郑雯 | A kind of PC alloy materials and its preparation method and application |
-
2020
- 2020-07-13 CN CN202010669273.0A patent/CN111849141A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050137360A1 (en) * | 2003-12-19 | 2005-06-23 | General Electric Company | Clear polycarbonate polyester blend |
| JP2008222774A (en) * | 2007-03-09 | 2008-09-25 | Mitsubishi Chemicals Corp | Resin composition and resin molded article |
| CN102666702A (en) * | 2009-09-30 | 2012-09-12 | 拜尔材料科学股份公司 | Polycarbonate compositions with improved optical properties |
| CN107739500A (en) * | 2016-08-26 | 2018-02-27 | 郑雯 | A kind of PC alloy materials and its preparation method and application |
Non-Patent Citations (3)
| Title |
|---|
| 尹洪峰等: "《功能复合材料》", 31 August 2013, 冶金工业出版社 * |
| 郭铁男等: "《中国消防手册》", 31 December 2017, 上海科学技术出版社 * |
| 陈玲红等: "聚碳酸酯用环保型无卤阻燃剂的研究进展", 《上海塑料》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112724634A (en) * | 2020-12-25 | 2021-04-30 | 深圳力越新材料有限公司 | PC-PCTG alloy and preparation method and application thereof |
| CN112724634B (en) * | 2020-12-25 | 2023-01-31 | 深圳力越新材料有限公司 | PC-PCTG alloy and preparation method and application thereof |
| CN112778740A (en) * | 2021-01-10 | 2021-05-11 | 深圳市富恒新材料股份有限公司 | Chemical-resistant transparent polycarbonate composite material with high glowing filament ignition temperature and preparation method thereof |
| CN114539740A (en) * | 2022-04-14 | 2022-05-27 | 沃德夫聚合物(上海)有限公司 | PETG-PC alloy with high light transmittance and high toughness as well as preparation method and application thereof |
| CN115286914A (en) * | 2022-08-30 | 2022-11-04 | 广东锦湖日丽高分子材料有限公司 | High-impact transparent low-temperature-formable PC alloy and preparation method thereof |
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