CN112280235B - Thermoplastic resin composition and preparation method and application thereof - Google Patents
Thermoplastic resin composition and preparation method and application thereof Download PDFInfo
- Publication number
- CN112280235B CN112280235B CN202011121297.9A CN202011121297A CN112280235B CN 112280235 B CN112280235 B CN 112280235B CN 202011121297 A CN202011121297 A CN 202011121297A CN 112280235 B CN112280235 B CN 112280235B
- Authority
- CN
- China
- Prior art keywords
- styrene
- resin composition
- thermoplastic resin
- acrylonitrile
- copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
Abstract
The invention discloses a thermoplastic resin composition, which comprises the following components in parts by weight: 90-99.5 parts of ABS, 0.5-10 parts of eucryptite and 0.1-1 part of processing aid. The present invention provides a thermoplastic resin composition having a low shrinkage characteristic by adding eucryptite to the thermoplastic resin composition. Compared to the prior art, eucryptite has the lowest specific volume ratio (r), below 100%. By regulating the specific volume ratio (r), the optimal low shrinkage rate characteristic can be obtained, and the overall mechanical property of the material is not influenced. Meanwhile, the invention also discloses a preparation method and application of the thermoplastic resin composition.
Description
Technical Field
The invention relates to the field of modification of high polymer materials, in particular to a thermoplastic resin composition and a preparation method and application thereof.
Background
As the automotive industry advances, the appearance of automobiles is more and more critical for consumers, and the gap between different parts can seriously affect the aesthetic appearance, therefore, the application of some automobile parts is very challenging in the process of continuously pursuing more targets with less cost, and the tolerance range of the dimensional stability is required to be extremely narrow so as to ensure that the clearance after the parts are installed is as small as possible and beautiful, and simultaneously, the safe use during the service life of the parts is met. The conversion from metal to plastic requires additional risks due to the size complexity of the plastic, which places more stringent requirements on the plastic material and also presents a significant challenge to the formulation developer.
ABS and ASA materials are engineering plastics with excellent performance, and have the characteristics of high glossiness, good impact toughness, creep resistance, wide range of use temperature, excellent electrical insulation, good dimensional stability, high reliability and the like, so the ABS and ASA materials are widely applied to the industries of electronics, electrics, lighting appliances, instruments, household appliances, automobile parts, packaging and the like. With the rapid development of the polymer material industry, new varieties of ABS and ASA are emerging continuously, and the application space of the ABS and ASA is greatly expanded. Meanwhile, the research on the processing technology is more and more focused on various aspects.
In the practical application of the automobile industry, the shrinkage rates of ABS and ASA are generally in the range of 0.4-0.7%, but the specific shrinkage rates are related to the structure of a workpiece, and for large parts such as spoilers, grilles, tail door license plates, empennages, trunk supports, door panels, auxiliary instrument panels and the like of automobiles, the shrinkage rates of molds are often set to be smaller by a host factory and a mold designer, so that the mold size is shorter, the sizes of the parts after injection molding are shorter, the air gap during the assembly of the whole automobile is increased, the attractiveness and quality of the whole automobile are seriously affected, and the high-quality experience of customers is reduced. Therefore, how to develop the ABS and ASA materials with low shrinkage, ensure the dimensional stability of the ABS and ASA materials used on large parts, and facilitate designers to better design parts has practical and important significance.
CN104004332B discloses a PC/ABS alloy composition with low shrinkage and high toughness and a preparation method thereof, wherein 1-10 parts of inorganic nano particle nano silicon dioxide is added to reduce the shrinkage of a PC/ABS mold, and simultaneously keep high toughness so as to adapt to the conditions that the mold is opened and the size of a workpiece is small. CN107880312B discloses a composite additive for high-gloss heat-resistant low-shrinkage polypropylene, which is applied to the field of small household appliances by adding superfine talcum powder to greatly reduce the shrinkage of polypropylene and improve the glossiness. CN101265359A, CN1930217A and the like respectively adopt talcum powder and glass fiber to reduce the shrinkage rate of PA/ABS and ABS. Therefore, in the prior art, the shrinkage rate of a resin system is mainly reduced by adding inorganic fillers such as talcum powder, glass fiber, inorganic nano particles and low-shrinkage polymer, and although the resin system has a certain effect, the shrinkage rate and the mechanical property cannot completely meet the requirements of a host factory.
Disclosure of Invention
In view of the above, the present invention has an object to provide a thermoplastic resin composition which overcomes the above-mentioned disadvantages of the prior art.
In order to realize the purpose, the technical scheme adopted by the invention is as follows: a thermoplastic resin composition comprises the following components in parts by weight: 90-99.5 parts of ABS, 0.5-10 parts of eucryptite and 0.1-1 part of processing aid.
Eucryptite is a kind of aluminum silicate lithium mineral with molecular formula of LiAl-SiO 4 "or" Li 20 ·Al 2 O 3 ·Si0 2 The composite material is mostly in a smooth lump shape or a star point shape, is sensitive to air humidity, has excellent thermal stability, thermal shock resistance and other properties, can improve comprehensive mechanical properties, is often applied to ceramic matrix composite materials and metal matrix composite materials, is also mostly applied to thermosetting polymer materials such as epoxy resin and the like even applied to polymer composite materials, and is less applied to the field of modified plastics.
Preferably, the specific volume ratio r of the eucryptite is 90-99.99%; wherein the specific volume ratio r is calculated by the following formula: r = V T1 /V T2 *100 percent; wherein, V T1 Is a material with a pressure of 0.1MPa and a T 1 Specific volume in mm at 100 = C 3 /g；V T2 Is a material with a pressure of 0.1MPa and a T 2 Specific volume in mm at 20 deg.C 3 /g。
The invention discovers that by controlling the specific volume ratio (r) of eucryptite, eucryptite species which have good compatibility with a resin matrix composed of a styrene impact-resistant toughening agent, a vinyl aromatic monomer and an olefinic unsaturated nitrile monomer binary copolymer and have excellent effect of reducing shrinkage can be obtained better.
More preferably, the specific volume ratio r of the eucryptite is 92% to 98%.
Preferably, the ABS is a styrene-butadiene-acrylonitrile copolymer; or the ABS comprises a styrenic impact toughener, further comprising a copolymer of a vinyl aromatic monomer and an ethylenically unsaturated nitrile monomer; the styrene impact toughening agent is selected from at least one of styrene-butadiene-acrylonitrile copolymer (ABS), styrene-butadiene-acrylate copolymer, methacrylate-butadiene-styrene copolymer (MBS), methacrylate-acrylate-styrene copolymer, styrene-acrylate-acrylonitrile copolymer (ASA) and methacrylate-acrylate copolymer.
Preferably, in the styrene-butadiene-acrylonitrile copolymer, the weight percentage of the butadiene is 10-65 percent, and the number average particle diameter d50 of the butadiene is 0.05-4.0 microns; in the styrene-acrylate-acrylonitrile copolymer, the weight percentage content of the acrylate is 10 percent to 65 percent, and the number average particle diameter d50 of the acrylate is 0.05 to 5.0 microns.
Preferably, in the styrene-based impact-resistant toughening agent, the weight percentage of the rubber is 10-50%; the number average particle diameter d50 of the rubber is 0.01 to 5.0 microns.
Preferably, the vinyl aromatic monomer and ethylenically unsaturated nitrile monomer binary copolymer is a styrene-acrylonitrile resin; the weight average molecular weight of the styrene-acrylonitrile resin is 10000-400000 daltons; in the styrene-acrylonitrile resin, the weight percentage of acrylonitrile is 20-40%.
More preferably, the weight average molecular weight of the styrene-acrylonitrile resin is 200000 to 300000 daltons; in the styrene-acrylonitrile resin, the weight percentage of acrylonitrile is 20-35%.
Preferably, the processing aid is selected from at least one of an antioxidant, a lubricant, a heat stabilizer, a light stabilizer, and a colorant.
Wherein the antioxidant comprises a primary antioxidant or stabilizer (e.g., a hindered phenol and/or a secondary aryl amine) and optionally a secondary antioxidant (e.g., a phosphate ester and/or a thioester). Suitable antioxidants include, secondary antioxidants, organic phosphates such as tris (nonylphenyl) phosphite, tris (2,4-di-t-butylphenyl) phosphite, bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite, distearyl pentaerythritol diphosphite or the like; primary antioxidants, alkylated monophenols or polyphenols; the alkylation reaction product of a polyhydric phenol with a diene, such as tetrakis [ methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamate) ] methane and the like; butylated reaction products of p-cresol or dicyclopentadiene; alkylated hydroquinones; hydroxylated thiodiphenyl ether; alkylidene bisphenols; a benzyl compound; esters of beta- (3,5-di-tert-butyl-4-hydroxyphenyl) -propionic acid with mono-or polyhydric alcohols; esters of beta- (5-tert-butyl-4-hydroxy-3-methylphenyl) -propionic acid with mono-or polyhydric alcohols; esters of thioalkyl or thioaryl compounds such as distearylthiopropionate, dilaurylthiopropionate, ditridecylthiopropionate, octadecyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, pentaerythritol-tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) ] propionate and the like; amides of β - (3,5-di-tert-butyl-4-hydroxyphenyl) -propionic acid and the like; or a combination comprising at least two of the foregoing antioxidants.
Suitable lubricants include zinc stearate, calcium stearate, magnesium stearate, polyethylene wax, EVA wax, oleamide, erucamide, ethylene bis stearamide, silicone lubricants, and pentaerythritol stearate.
Suitable heat stabilizers include, for example, organophosphites such as triphenyl phosphite, tris (2,6-dimethylphenyl) phosphite, tris (mixed mono-and di-nonylphenyl) phosphite, and the like; phosphonates such as dimethylbenzene phosphonate or the like; phosphate esters such as trimethyl phosphate and the like; or a combination comprising at least two of the foregoing heat stabilizers.
Suitable light stabilizers include, for example, benzotriazoles such as 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) -benzotriazole, and 2-hydroxy-4-n-octyloxybenzophenone, and the like, as well as triazine based ultraviolet light absorbers or combinations comprising at least two of the foregoing light stabilizers.
Such as pigment and/or dye additives. Suitable pigments include, for example, inorganic pigments such as metal oxides and mixed metal oxides such as zinc oxide, titanium dioxide, iron oxide, and the like; sulfides such as zinc sulfide and the like; an aluminate salt; sodium thiosilicates, sulfates, chromates, and the like; carbon black; zinc ferrite; ultramarine blue; pigment brown 24; pigment red 101; pigment yellow 119; organic pigments such as azos, di-azos, quinacridones, perylenes, naphthalocytes, flavanthrones, isoindolinones, tetrachloroisoindolinones, anthraquinones, anthanthrones, dioxazines, phthalocyanines, and azo lakes; pigment blue 60, pigment red 122, pigment red 149, pigment red 177, pigment red 179, pigment red 202, pigment white 29, pigment blue 15, pigment green 7, pigment yellow 147 and pigment yellow 150, or a combination comprising at least one of the foregoing pigments. Preferred colorants include carbon black, iron trioxide, i.e., iron oxide red, or titanium dioxide. Suitable dyes may be organic materials, for example coumarin dyes such as coumarin 460 (blue), coumarin 6 (green), nile red lamp; a lanthanide complex; hydrocarbon and substituted hydrocarbon dyes; a polycyclic aromatic hydrocarbon dye; scintillation dyes, such as oxazole or oxadiazole dyes; aryl or heteroaryl substituted poly (C2-8) olefin dyes; a carbocyanine dye; indanthrone dyes; a phthalocyanine dye; an oxazine dye; a quinolone dye; naphthalene tetracarboxylic acid dyes; a porphyrin dye; bis (styryl) biphenyl dyes; an acridine dye; anthraquinone dyes; a cyanine dye; a methine dye; an arylmethane dye; an azo dye; indigoid dyes, thioindigoid dyes; a diazo dye; nitro dyes; quinone imine dyes; an aminoketone dye; a tetrazolium dye; a thiazole dye; a perylene dye; a perylene ketone dye; di-benzoxazolyl thiophenes; a triarylmethane dye; a thioxanthene dye; naphthalimide dyes; a lactone dye; fluorophores such as anti-stokes shift dyes that absorb in the near infrared wavelength and emit in the visible wavelength, and the like; luminescent dyes, such as 7-amino-4-methylcoumarin; 3- (2' -benzothiazolyl) -7-diethylaminocoumarin; 2- (4-biphenylyl) -5- (4-tert-butylphenyl) -1,3,4-oxadiazole; 2,5-bis- (4-biphenyl) -oxazole; 2,2' -dimethyl-p-quaterphenyl; 2,2, -dimethyl-p-terphenyl; 3,5,3",5" -tetra-tert-butyl-p-pentabiphenyl; 2,5-diphenylfuran; 2,5-diphenyloxazole; 4,4' -diphenylstilbene; 4-dicyanomethylene-2-methyl-6- (p-dimethylaminostyryl) -4H-pyran; 1,1 '-diethyl-2,2' -carbocyanine iodide; 3,3' -diethyl-4,4 ',5,5' -dibenzothiatricarbocyanin iodide; 7-dimethylamino-1-methyl-4-methoxy-8-azaquinolone-2; 7-dimethylamino-4-methylquinolone-2; 2- (4- (4-dimethylaminophenyl)) -1,3-butadienyl) -3-ethylbenzothiazole perchlorate; 3-diethylamino-7-diethyliminophenoxazole perchlorate; 2- (1-naphthyl) -5-phenyloxazole; 2,2' -p-phenylene-bis (5-phenyloxazole); rhodamine 700; rhodamine 800; pyrene; 1,2-triphenylene; (ii) a rubrene; coronene, or the like, or combinations comprising at least one of the foregoing dyes.
Meanwhile, the invention also provides a preparation method of the thermoplastic resin composition, which comprises the following steps: uniformly mixing ABS, eucryptite and processing aid, and then putting into a screw extruder for extrusion granulation at 200-300 ℃ to obtain a thermoplastic resin composition; wherein the screw rotating speed of the double-screw extruder is 200-700 r/min.
In addition, the present invention also provides the use of the above thermoplastic resin composition in large parts for low shrinkage automobiles, such as spoilers, grilles, tail gate trim panels, tail wings, trunk supports, door panels, instrument panels, and the like, including but not limited thereto.
Compared with the prior art, the invention has the beneficial effects that:
the present invention provides a thermoplastic resin composition having a low shrinkage characteristic by adding eucryptite to the thermoplastic resin composition. Compared with the prior art, the eucryptite has the lowest specific volume ratio (r) which is lower than 100%, and the optimal low shrinkage rate characteristic can be obtained by regulating and controlling the specific volume ratio (r) of the eucryptite without influencing the overall mechanical property of the material. While the specific volume ratio (r) of the general thermoplastic resin is more than 100.05%; even inorganic fillers such as talcum powder, glass fiber and the like have specific volume ratio (r) of more than 100.02 percent and have poor comprehensive mechanical properties.
The thermoplastic resin composition can solve the troubles of host factories and mold design manufacturers, and large automobile parts with stable size and meeting the requirement of accurate assembly can be prepared by selecting lower mold opening shrinkage rate to match the resin composition.
Drawings
FIG. 1 is an electron micrograph of a typical morphology of eucryptite.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
The main representative materials used in the examples and comparative examples are as follows:
ABS resin-1 (ABS-1): butadiene 12 wt%, with a number average particle size d50 of 3.0 microns, produced by the high bridge petrochemical process;
ABS resin-2 (ABS-2): butadiene 5wt%, with a number average particle size d50 of 5.0 microns, produced by the high bridge petrochemical process;
ABS resin-3 (ABS-3): butadiene 20 wt% and a number average particle size d50 of 0.3 μm, produced by taiwan qimei, china;
ABS type toughening agent-1 (ZRJ-1): 60 percent of butadiene by weight and 0.3 micron of number average particle diameter d50, and is produced by the brocade lake;
ASA type toughener-1 (ASA-1): 60% by weight of an acrylic ester having a number average particle diameter d50 of 0.6. Mu.m, produced by UMG corporation;
ASA-type toughening agent-2 (ASA-2): 5% by weight of an acrylic ester having a number average particle diameter d50 of 5.0 μm, produced by LG chemical Co., ltd;
copolymers of vinylaromatic monomers and ethylenically unsaturated nitrile monomers: styrene-acrylonitrile resin
SAN-1: the weight-average molecular weight of the copolymer is 250000 daltons, wherein the weight percentage of acrylonitrile is 25wt%, and the copolymer is produced in a brocade lake by petrochemical industry;
SAN-2: the weight-average molecular weight of the copolymer is 150000 daltons, the weight percentage content of acrylonitrile is 18wt%, and the copolymer is produced by petrochemical processing in a brocade lake;
SAN-3: the weight-average molecular weight of the copolymer is 350000 daltons, wherein the acrylonitrile weight percentage content is 38wt%, and the copolymer is produced by petrochemical processing in a brocade lake;
eucryptite, a typical topography electron micrograph of which is shown in fig. 1:
eucryptite A: specific volume ratio (r) =88%; produced by Anhui Shitong, and the sample number is LXS-1;
eucryptite B: specific volume ratio (r) =95%; produced by Anhui Shitong, and the sample is numbered LXS-2;
eucryptite C: specific volume ratio (r) =99.99%; produced by Anhui Shitong, and the sample is numbered LXS-3;
eucryptite D: specific volume ratio (r) =90%; produced by Anhui Shitong, and the sample is numbered LXS-4;
eucryptite E: specific volume ratio (r) =92%; produced by Anhui Shitong, and the sample number is LXS-5;
eucryptite F: specific volume ratio (r) =98%; produced by Anhui Shitong, and the sample number is LXS-6;
wherein, the specific volume ratio r is calculated by the following formula:
r＝V T1 /V T2 *100 percent; wherein, V T1 Is a material with a pressure of 0.1MPa and a T 1 Specific volume in mm at 100 =100 ℃ 3 /g；V T2 Is a material with a pressure of 0.1MPa and a T 2 Specific volume in mm at 20 deg.C 3 /g。
Lubricant: pentaerythritol stearate; supplied by U.S. dragon sand;
antioxidant: hindered phenolic antioxidants supplied by BASF;
the preparation methods of the thermoplastic resin compositions of examples and comparative examples were: ABS, eucryptite and processing aid are mixed evenly, and then put into a screw extruder to be extruded and granulated (the rotating speed is 200-700 r/min at 200-300 ℃) to obtain the ABS resin composition.
The performance test method comprises the following steps:
(1) Shrinkage test method: according to the GB/T15585-1995 standard, a standard shrinkage sample plate is injected, the size of a cavity in the length direction is 219.9mm is selected as a standard plate, the size of the sample plate is measured, the size of the sample plate is subtracted from the size of the cavity which is actually opened, and finally the size is divided by the size of the cavity which is opened, so that the shrinkage value is obtained.
(2) Mechanical properties: and (5) using a male-shocking injection molding machine to injection mold various standard sample strips and templates.
Tensile strength: the tensile speed is 50mm/min according to the test of ISO527-2012 standard; flexural modulus: testing according to ISO178-2010 standard, with the speed of 2mm/min and the span of 64mm; izod notched impact strength: testing according to ISO180/1eA-2001 standard;
(3) Specific volume test: the specific volume of the material is measured by a pressure-volume-temperature measuring instrument of Gnomix company in America, and the specific volume of the material under determined temperature and pressure is measured. And finally, the specific volume ratio (r) is calculated. The density of the material at high and low temperatures can also be calculated by a high-temperature densitometer, and the ratio of the density at high and low temperatures is the reciprocal of the specific volume ratio (r).
The contents of components and performance test results in examples 1 to 8 and comparative examples 1 to 2 are shown in table 1, and the contents of components and performance test data in examples 9 to 15 are shown in table 2:
TABLE 1 ingredient contents and Performance test results in examples 1 to 8 and comparative examples 1 to 2
TABLE 2 ingredient content and Performance test data for examples 9-15
As can be seen from Table 1, comparing examples 1-3 with comparative examples 1-2, comparative examples 1-2 do not contain eucryptite of the present application, and the shrinkage, tensile strength, and flexural strength are inferior to those of examples 1-3; comparing example 1 with examples 2, 3, and 13 to 15, it is clear that the specific volume ratio r of eucryptite in examples 2, 3, and 13 to 15 is in the range of 90% to 99.99%, the shrinkage is lower, and the tensile strength, bending strength, and notched impact strength are also better than those in example 1; the shrinkage rates in examples 2, 14 and 15 were lower, and the tensile strength, bending strength and notched impact strength were also better than those in examples 3 and 13.
Comparing examples 2 and 4 to 5, it can be seen that the styrene-butadiene-acrylonitrile copolymer of example 4 has a butadiene content of not 10 to 65% by weight and a number average particle diameter d50 of not 0.05 to 4.0. Mu.m, and is inferior to examples 2 and 5 in shrinkage, tensile strength, flexural strength and notched impact strength.
As can be seen by comparing examples 6 to 8, the styrene-acrylonitrile resin in example 7 has a content of acrylonitrile of not 20 to 40% by weight, and is inferior to examples 6 and 8 in shrinkage, tensile strength, bending strength and notched impact strength; the styrene-acrylonitrile resin in example 6 has a weight average molecular weight of 200000 to 300000 daltons, and acrylonitrile in a weight percentage of 20% to 35%, and the shrinkage, tensile strength, bending strength, and notched impact strength are superior to those of examples 7 and 8.
As can be seen from Table 2, when comparing example 9 with example 10, the styrene-acrylate-acrylonitrile copolymer of example 10 has a weight percentage content of acrylate of not 10% to 65% and a number average particle diameter d50 of not 0.05 to 5.0 μm, and is inferior to example 9 in tensile strength, flexural strength and notched impact strength.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A thermoplastic resin composition is characterized by comprising the following components in parts by weight: 90-99.5 parts of ABS, 0.5-10 parts of eucryptite and 0.1-1 part of processing aid;
the specific volume r of the eucryptite is 90-99.99%; wherein the specific volume ratio r is calculated by the following formula:
r＝V T1 /V T2 *100 percent; wherein, V T1 Is prepared from the material at 0.1MPa and T 1 Specific volume in mm at 100 = C 3 /g；V T2 Is prepared from the material at 0.1MPa and T 2 Specific volume in mm at 20 = specific volume at 3 /g；
The ABS is a styrene-butadiene-acrylonitrile copolymer; or the ABS comprises a styrenic impact toughener, further comprising a copolymer of a vinyl aromatic monomer and an ethylenically unsaturated nitrile monomer; the styrene impact-resistant toughening agent is at least one selected from styrene-butadiene-acrylonitrile copolymer, styrene-butadiene-acrylate copolymer, methacrylate-butadiene-styrene copolymer, methacrylate-acrylate-styrene copolymer, styrene-acrylate-acrylonitrile copolymer and methacrylate-acrylate copolymer.
2. The thermoplastic resin composition of claim 1, wherein the eucryptite has a specific volume ratio r of 92% to 98%.
3. The thermoplastic resin composition according to claim 1, wherein the styrene-butadiene-acrylonitrile copolymer contains 10 to 65% by weight of butadiene, and the butadiene has a number average particle diameter d50 of 0.05 to 4.0 μm; in the styrene-acrylate-acrylonitrile copolymer, the weight percentage content of the acrylate is 10 percent to 65 percent, and the number average particle diameter d50 of the acrylate is 0.05 to 5.0 microns.
4. The thermoplastic resin composition of claim 1, wherein the styrenic impact toughener comprises 10 to 50 weight percent rubber and the number average particle diameter d50 of the rubber is 0.01 to 5.0 microns.
5. The thermoplastic resin composition of claim 1, wherein said binary copolymer of a vinyl aromatic monomer and an ethylenically unsaturated nitrile monomer is a styrene-acrylonitrile resin; the weight average molecular weight of the styrene-acrylonitrile resin is 10000-400000 daltons; in the styrene-acrylonitrile resin, the weight percentage of acrylonitrile is 20-40%.
6. The thermoplastic resin composition according to claim 5, wherein the styrene-acrylonitrile resin has a weight average molecular weight of 200000 to 300000 daltons; in the styrene-acrylonitrile resin, the weight percentage of acrylonitrile is 20-35%.
7. A method for producing the thermoplastic resin composition as described in any one of claims 1 to 6, characterized in that the method comprises: uniformly mixing ABS, eucryptite and processing aid, and then putting into a double-screw extruder for extrusion granulation at 200-300 ℃ to obtain a thermoplastic resin composition; wherein the screw rotating speed of the double-screw extruder is 200-700 r/min.
8. Use of the thermoplastic resin composition as claimed in any one of claims 1 to 6 for large automobile parts with low shrinkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011121297.9A CN112280235B (en) | 2020-10-19 | 2020-10-19 | Thermoplastic resin composition and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011121297.9A CN112280235B (en) | 2020-10-19 | 2020-10-19 | Thermoplastic resin composition and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112280235A CN112280235A (en) | 2021-01-29 |
| CN112280235B true CN112280235B (en) | 2023-03-31 |
Family
ID=74497609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011121297.9A Active CN112280235B (en) | 2020-10-19 | 2020-10-19 | Thermoplastic resin composition and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112280235B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100067980A (en) * | 2008-12-12 | 2010-06-22 | 제일모직주식회사 | Epoxy resin composition for encapsulating multichip package and the multichip package using the same |
| CN103958607A (en) * | 2011-12-02 | 2014-07-30 | 帝人株式会社 | Flame-resistant resin composition containing polycarbonate-polydiorganosiloxane copolymer resin and article molded therefrom |
| CN104004332A (en) * | 2014-05-05 | 2014-08-27 | 上海锦湖日丽塑料有限公司 | Low-shrinking-percentage high-toughness PC/ABS alloy composition and preparation method thereof |
| JP2014159510A (en) * | 2013-02-19 | 2014-09-04 | Teijin Ltd | Flame-retardant resin composition for supercritical fluid fine foam molding and its molded article |
| WO2019151497A1 (en) * | 2018-02-05 | 2019-08-08 | 帝人株式会社 | Flame-retardant polycarbonate resin composition |
-
2020
- 2020-10-19 CN CN202011121297.9A patent/CN112280235B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100067980A (en) * | 2008-12-12 | 2010-06-22 | 제일모직주식회사 | Epoxy resin composition for encapsulating multichip package and the multichip package using the same |
| CN103958607A (en) * | 2011-12-02 | 2014-07-30 | 帝人株式会社 | Flame-resistant resin composition containing polycarbonate-polydiorganosiloxane copolymer resin and article molded therefrom |
| JP2014159510A (en) * | 2013-02-19 | 2014-09-04 | Teijin Ltd | Flame-retardant resin composition for supercritical fluid fine foam molding and its molded article |
| CN104004332A (en) * | 2014-05-05 | 2014-08-27 | 上海锦湖日丽塑料有限公司 | Low-shrinking-percentage high-toughness PC/ABS alloy composition and preparation method thereof |
| WO2019151497A1 (en) * | 2018-02-05 | 2019-08-08 | 帝人株式会社 | Flame-retardant polycarbonate resin composition |
Non-Patent Citations (3)
| Title |
|---|
| On-line testing equipment of P–V–T properties of polymers based on an injection molding machine;Jian Wang等;《Polymer Testing》;20090531;第28卷(第3期);第228-234页 * |
| 低膨胀 β-锂霞石基复合材料的研究现状与进展;薛耀辉等;《材料导报》;20200331;第34卷(第3期);第5068-5077页 * |
| 锂霞石应用研究综述;张巍;《矿物学报》;20160315(第01期);第83-93页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112280235A (en) | 2021-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5812506B2 (en) | Resin composition and molded body thereof | |
| US11958965B2 (en) | Thermoplastic resin composition and molded product using same | |
| US20080081862A1 (en) | Fiber reinforced polystyrene composites | |
| US9657167B2 (en) | Thermoplastic resin composition | |
| US9725587B2 (en) | Injection molded article | |
| JP5541881B2 (en) | Glass reinforced resin composition | |
| US10106677B2 (en) | Thermoplastic resin composition and molded product obtained by applying same | |
| CN112662107B (en) | Glass fiber reinforced styrene maleic anhydride copolymer composition and preparation method thereof | |
| JP2012036384A (en) | Heat resistant/coating resistant thermoplastic resin composition | |
| CN112280235B (en) | Thermoplastic resin composition and preparation method and application thereof | |
| US20120264882A1 (en) | Thermoplastic Resin Composition and Molded Product Using Same | |
| US20120270965A1 (en) | Thermoplastic Resin Composition and Molded Product Using Same | |
| CN109810439B (en) | Polymethyl methacrylate resin composition having beautiful appearance and improved heat resistance, and preparation method and use thereof | |
| EP2548922B1 (en) | Styrene-based resin composition, and resin molded article comprising same | |
| EP3778758A1 (en) | Thermoplastic resin composition and molded product using same | |
| KR20150001991A (en) | Thermoplastic resin composition and molded article using the same | |
| CN112266568B (en) | ABS resin composition with high shrinkage rate and preparation method thereof | |
| JP5255407B2 (en) | Flame retardant thermoplastic resin composition and molded article comprising the same | |
| CN103923432A (en) | High impact extinctive ABS (Acrylonitrile Butadiene Styrene) modified plastic and preparation method thereof | |
| CN108203533B (en) | Thermoplastic resin composition and molded article using same | |
| KR20140092471A (en) | Polyester Resin Composition | |
| KR20100011561A (en) | Resin composition with an anti-scratch and flame-retardent propeties | |
| JP2019019311A (en) | Thermoplastic resin composition and molded article thereof | |
| CN112795161B (en) | PC/ABS polymer alloy for improving weld marks of digital product shell and preparation method and application thereof | |
| KR20090070101A (en) | Thermal conductive transparent thermoplastic resin composition with good impact resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |