CN109957225A - High-intensitive scratch resistant halogen-free flame retardant PC/ABS composite material and preparation method - Google Patents
High-intensitive scratch resistant halogen-free flame retardant PC/ABS composite material and preparation method Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- 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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2203/20—Applications use in electrical or conductive gadgets
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Abstract
The invention discloses a kind of high-intensitive scratch resistant halogen-free flame retardant PC/ABS composite material and preparation methods, including following component in percentage by weight: PC resin 38~71%；ABS resin 10~34%；Thermoplastic polyester elastomer 3-5%；Polyaryl phosphate ester 5~10%；Phosphenylic acid rare-earth salts 0.5~3%；Metal hybrid polysilsesquioxane 0.5~2%；Carbon nanotube 5~15%；Compatilizer 1~5%.High intensity scratch resistant halogen-free flame retardant PC/ABS composite material of the present invention has both that processing performance is good, intensity is high, flame retardant property is good, scoring resistance is excellent etc. a little, suitable for preparing high intensity, scratch resistant, fire-retardant ultra-thin product, it can be applied to the fields such as laptop, tablet computer and smart phone, use of the expensive bulky metal alloy of substitution in high-end electronic product.
Description
Technical field
The present invention relates to field of compound material, in particular it relates to which high-intensitive scratch resistant halogen-free flame retardant PC/ABS is multiple
Condensation material and preparation method.
Background technique
PC/ABS, polycarbonate and acrylonitrile-butadiene-styrene copolymer and mixture are by polycarbonate
(Polycarbonate) and thermoplastic plastic rubber made of polyacrylonitrile (ABS) alloy, the excellent spy of two kinds of materials is combined
Properties, the color such as mechanicalness, impact strength and the heatproof of property, the mouldability of ABS material and PC, uvioresistant (UV) are without transparent
Particle can be widely used on automotive interior parts, Business Machine, the communication apparatus, electrical home appliances and lighting apparatus.However, existing
Some PC/ABS composite materials still have deficiency in terms of flame retardant property, scratch-resistant.It is outstanding that carbon fiber can assign material
Mechanical property, good electromagnetic shielding effect and antistatic property, but PC/ABS composite material tape is also given in the addition of carbon fiber
Carry out some negative effects: one side material melt viscosity increases, and difficulty of processing improves, it is difficult to meet the production need of ultra-thin product
It asks；On the other hand, because " candle wick ignition in hydriding effect also proposed bigger choose to the flame retardant property of material brought by carbon fiber
War.The common halogen-free flame retardants of PC/ABS alloy mainly has phosphate, phosphite ester, metal hydroxides, red phosphorus, ammonium polyphosphate
With melamine etc..Wherein flame retardant effect is the most it is apparent that organic phosphorus flame retardant.However, carbon-forming performance when its exclusive use
Difference, flame retarding efficiency is low, additive amount is big, deteriorates to material mechanical performance and processing performance serious, it is difficult to meet fibre reinforced PC/
The performance requirement of ABS composite material, therefore develop the Halogen resistance that a kind of processing performance is good, mechanical strength is high, scoring resistance is good
Combustion PC/ABS composite material just seems especially urgent and important.
Currently, having obtained certain progress to halogen-free flameproof and the research of fiber-reinforced PC/ABS composite material, Wei etc. is adopted
With hypo-aluminum orthophosphate (AHP) and ethylene-methyl acrylate-glyceryl methacrylate copolymer (EMA) fire-retardant toughened PC/
ABS keeps the mechanical property of matrix not to be affected substantially while realizing highly effective flame-retardant, but obvious dislike occurs in mobile performance
Change, is unfavorable for processing (Wu N, Lang S.Flame retardancy and toughness modification of
flame retardant polycarbonate/acrylonitrile‐butadiene‐styrene/AHP composites
[J].Polymer Degradation and Stability,2016,123:26‐35.)；
Chinese invention patent application CN103013089A disclose a kind of flame-retardant glassfiber reinforced PC/ABS composite material and its
Preparation method proposes that add appropriate N, N ethylene bis stearic acid amide and erucyl amide leaks outside as inside and outside lubricant agent and anti-glass
Agent realizes the synergistic effect of the two, so that fiber is uniformly dispersed, improve the mechanical property of material, but glass is degrading PC/ABS
The mobility of composite material is not used to prepare ultra-thin product；Wei Fenfang etc. is in view of improving mobility to modified PC/ABS's
Importance, with triphenyl phosphate (TPP) for fire retardant, and compound styrene-maleic anhydride copolymer and methyl methacrylate/
The processing aids such as Butadiene/Styrene terpolymer are developed a kind of with good fluidity halogen-free flame retardant PC/ABS (Wei Fen
Sweet smell, the Shandong preparation [J] the chemical industry for flat high fluidity halogen-free flame retardant PC/ABS alloy of passing away, 2014,7:017.).But TPP pairs
The deterioration of PC/ABS mechanical property is very serious, and TPP decomposition temperature is lower, volatile in process and degradation.
Above to PC/ABS alloy enhancing, the fire-retardant relevant prior art all cannot be considered in terms of flame retardant properties, mechanical properties with
Balance between processing performance, it is difficult to applied in super-thin electronic product, lightweight component.Currently, not yet finding both at home and abroad simultaneous
Have that high fluidity, high rigidity, scoring resistance be excellent and the research report of the PC/ABS mixture of high flame resistance.Therefore, how
Preparing high fluidity high rigidity halogen-free flame retardant PC/ABS mixture has important social effect and huge economic benefit.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, provide one kind have both processing performance is good, intensity is high, resistance
Combustion high-intensitive scratch resistant halogen-free flame retardant PC/ABS composite material that performance is good, scoring resistance is excellent, the mixture are suitable for preparation
High intensity, scratch resistant, fire-retardant ultra-thin product, can be applied to the fields such as laptop, tablet computer and smart phone, and substitution is high
Use of the expensive bulky metal alloy in high-end electronic product.
Another object of the present invention is to provide the preparations of the high-intensitive scratch resistant halogen-free flame retardant PC/ABS composite material
Method.
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, the component group including following weight percent
At:
PC resin 38~71%；
ABS resin 10~34%；
Thermoplastic polyester elastomer 3-5%；
Polyaryl phosphate ester 5~10%；
Phosphenylic acid rare-earth salts 0.5~3%；
Metal hybrid polysilsesquioxane 0.5~2%；
Carbon nanotube 5~15%；
Compatilizer 1~5%；
The polyaryl phosphate ester is bisphenol-A bis- (diphenyl phosphoesters) (BDP), the bis- (diphenylphosphoric acids of resorcinol
Ester) (RDP), one of PX-200 and PX-220 aromatic phosphoric ester fire retardant or a variety of；
The phosphenylic acid rare-earth salts is one of phosphenylic acid lanthanum, phosphenylic acid zirconium or phosphenylic acid cerium or more
Kind.
The PC resin notch impact strength is 60~120kJ/m2 in one of the embodiments, 300 DEG C/
Melt index is 10~20g/10min under the conditions of 1.2kg.
The ABS resin notch impact strength is 10~40kJ/m2 in one of the embodiments, in 200 DEG C/5kg
Under the conditions of melt index be 5~10g/10min.
The shore hardness of the thermoplastic polyester elastomer is 40-60 in one of the embodiments,.
The metal hybrid polysilsesquioxane is titanium hydridization polysilsesquioxane, zirconium in one of the embodiments,
One of hydridization polysilsesquioxane or cerium hydridization polysilsesquioxane are a variety of.
The carbon nanotube diameter is 5-20nm in one of the embodiments,.
The compatilizer is ethylene-methyl acrylate-glyceryl methacrylate in one of the embodiments,
Copolymer (EMA), organic-silicon-modified ethylene-vinyl acetate copolymer, phenylethylene-maleic anhydride (SMA), maleic anhydride grafting
One of ABS (ABS-g-MAH) and polycarbonate organic silicon block copolymer or a variety of.
The preparation method of the high-intensitive scratch resistant halogen-free flame retardant PC/ABS composite material, comprising the following steps:
S1, by PC resin, ABS resin, thermoplastic polyester elastomer, carbon nanotube, compatilizer, polyaryl phosphate ester, benzene
Base phosphoric acid rare-earth salts and metal hybrid polysilsesquioxane are dry；Then by PC resin, ABS resin, compatilizer, polyaryl
Ester, phosphenylic acid rare-earth salts and metal hybrid polysilsesquioxane are mixed through high-speed mixer；
S2, the main feeding bin that mixed raw material is placed in equidirectional parallel double-screw extruder, are added to through feed screw
In the barrel of extruder, by carbon nanotube by side feed feed bin be added barrel in, in barrel the processing temperature of eight sections of bringing-up sections from
Feed opening exports successively to head are as follows: 190~200 DEG C, 210~220 DEG C, 210~220 DEG C, 210~220 DEG C, 220~230
DEG C, 225~235 DEG C, 235~245 DEG C, 240~250 DEG C, the PC/ is obtained after melting extrusion, granulation and drying process
ABS mixture.
The PC resin, ABS resin, thermoplastic polyester elastomer and carbon nanotube in one of the embodiments,
It is dry to be placed in drying 6~12 hours in 70~90 DEG C of baking ovens；The compatilizer, polyaryl phosphate ester, phosphenylic acid rare earth
The drying of salt and metal hybrid polysilsesquioxane is placed in 60~80 DEG C of vacuum drying ovens and is dried in vacuo 6~12 hours.
The time of high-speed mixer mixing is 15~20min in one of the embodiments,.
The engine speed of the equidirectional parallel double-screw extruder is 300~400rpm in one of the embodiments,
The revolving speed of main feed screw is 20~40rpm；The revolving speed of side feed screw is 15~25rpm.
Polyaryl phosphate ester of the present invention is not used as aromatic phosphoric ester based flame retardant still, and fire-retardant plasticising is played in system
Effect, but also due to its lesser molecular weight, the processing fluidity of PC/ABS can be effectively promoted in system；Its fire retardant mechanism
For hydroxy compounds heat absorption in aryl phosphate ester decomposable process, can be promoted to be dehydrated into carbon, it is burnt that graphite-like is formed on the surface of the material
Layer of charcoal；Phosphorus-oxygen groups are heated to be generated free radicals, and the living radical during matrix degradation is captured；The water that dehydration generates steams
Gas can dilute the concentration of fuel gas in gas phase, play good fire retardation.
The fire retardation mechanism of metal hybrid polysilsesquioxane is mainly in fire retardation PC/ABS burning, and metallic element is in valence
State can terminate the living radical generated in polymer degradation processes during changing, inhibit the free radical in gas phase
Chain reaction.The stereochemical structure of metal hybrid silsesquioxane can play a supporting role in layer of charcoal simultaneously, and it is strong to improve layer of charcoal
Degree forms and stablizes layer of charcoal, blocks the heat and mass transport process between gas phase and condensed phase.
The fire retardant mechanism of phosphenylic acid rare-earth salts is mainly in fire retardation PC/ABS, and rare earth element is sent out in phosphenylic acid rare-earth salts
Raw variation of valence captures the living radical generated during PC/ABS matrix degradation, inhibits radical chain decomposition reaction.Together
When phosphenylic acid rare-earth salts lamella barrier structure can preferably close layer of charcoal, block the heat and mass transfer between gas-solid phase,
Enhance flame retardant effect.
Mainly carbon atom takes SP2 hydridization to the enhancing mechanism of carbon nanotube in its structural particularity, carbon nanotube, compares
SP3 hydridization, S orbital composition is bigger in SP2 hydridization, and carbon nanotube is made to have high-modulus and high intensity, and draw ratio generally exists
1000:1 or more, original are higher than general enhanced fiber, and intensity is 100 times higher than the intensity of same volume steel, and weight but only has the latter
1/6 to 1/7, arrange in pairs or groups compatilizer, be very suitable for being added to the product that light high intensity is prepared in PC/ABS component.
Thermoplastic polyester elastomer equally has the characteristics that intensity is high compared with engineering plastics, flexibility and dynamic mechanical
More preferably can also have excellent flexural fatigue resistance energy, impact resistance, tear resistance and wearability, be added to PC/
In ABS composite material, compatibility is good, can be obviously improved the scratch resistant and impact resistance of composite material.
Compared with prior art, the beneficial effects of the present invention are: the present invention prepared by PC/ABS mixture have both resistance
The advantages of combustion is had excellent performance, mechanical strength is high, scratch resistant is excellent and good fluidity, it is dilute by polyaryl phosphate ester, phosphenylic acid
While the poly- synergistic effect of earth salt, metal hybrid polysilsesquioxane promotes flame retarding efficiency, small molecule phosphate improves PC/
ABS blend mobility, efficiently solve carbon nanotube enhancing PC/ABS melt viscosity be excessive, processing difficulties, can not be made it is super
The problem of thin product provides solution for the demand in high-end electronic electric appliance and auto industry " mould Dai Gang "；Carbon nanometer
The intensity and scoring resistance energy of PC/ABS composite material has then been respectively increased in pipe and thermoplastic polyester elastomer, further increases
The comprehensive mechanical property of PC/ABS composite material.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with specific embodiment, to this
Invention is described in further detail.It should be understood that the specific embodiments described herein are only to explain this hair
It is bright, and the scope of protection of the present invention is not limited.
Properties of product test method is as follows in the embodiment of the present invention:
Tensile property test: according to 1040 standard testing of GB/T, test rate 50mm/min.
Bending property test: according to 9341 standard testing of GB/T, test rate 20mm/min.
Impact property test: according to GB/T1843 standard testing, test bars are with a thickness of 4mm.
Vertical combustion grade: standard testing is burnt according to 2408 direct combustion of GB/T, test bars are having a size of 80 X, 10 X
1.6mm3。
Limit oxygen index test: according to 2406.1 standard testing of GB/T, test bars are having a size of 150 X, 10 X 3mm3。
Melt index test: press 3682 standard of GB/T, 250 DEG C of test temperature, load 2.16kg.
Scoring resistance test: PV3952 standard is pressed, delineation speed: V=1000MM/ minutes, grid size 2MM.
Embodiment 1
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, preparation process are as follows: weighing PC resin
(55%), ABS resin (15%), thermoplastic polyester elastomer (5%) carbon nanotube (15%), EMA (4%), polyaryl
Ester PX-220 (5%), phenyl-phosphonic acid lanthanum (0.5%) Titanium hydridization polysilsesquioxane (0.5%), drying, by PC, ABS, heat
It is thrown after plasticity polyester elastomer, EMA, PX-220, phenyl-phosphonic acid lanthanum and Titanium hydridization polysilsesquioxane mixed at high speed 20min
Enter the main feeding bin to double screw extruder, main feed screw revolving speed is 25rpm, and carbon nanotube is placed in double screw extruder
Side feed feed bin, side feed material screw speed are 30rpm, are added in extruder main barrel through feed screw, engine speed 300rpm,
Main barrel each bringing-up section section control temperature (totally eight sections of outlet from feed opening to head) is 200 DEG C, 220 DEG C, 220 DEG C, 230 DEG C,
235 DEG C, 245 DEG C, 245 DEG C, 250 DEG C, obtain product after the processes such as melting extrusion, granulation, drying process.
Embodiment 2
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, preparation process are as follows: weighing PC resin
(65%), ABS resin (17%), thermoplastic polyester elastomer (3%)；Carbon nanotube (5%), EMA (4%), PX-220
(5%), phenyl-phosphonic acid lanthanum (0.5%) Titanium hydridization polysilsesquioxane (0.5%), drying, by PC, ABS, thermoplastic polyester
Double spiral shells are put into after elastomer, EMA, PX-220, phenyl-phosphonic acid lanthanum and Titanium hydridization polysilsesquioxane mixed at high speed 20min
The main feeding bin of bar extruder, main feed screw revolving speed are 25rpm, and carbon nanotube is placed in the side feed material of double screw extruder
Storehouse, side feed material screw speed are 30rpm, are added in extruder main barrel through feed screw, engine speed 300rpm, main barrel
Each bringing-up section section control temperature (totally eight sections of outlet from feed opening to head) is 200 DEG C, 220 DEG C, 220 DEG C, 230 DEG C, 235 DEG C,
245 DEG C, 245 DEG C, 250 DEG C, obtain product after the processes such as melting extrusion, granulation, drying process
Embodiment 3
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, preparation process are as follows: weighing PC resin
(38%), ABS resin (34%), thermoplastic polyester elastomer (4%), carbon nanotube (14%), EMA (4%), PX-220
(5%), phenyl-phosphonic acid lanthanum (0.5%) Titanium hydridization polysilsesquioxane (0.5%), drying, by PC, ABS, thermoplastic polyester
Double spiral shells are put into after elastomer, EMA, PX-220, phenyl-phosphonic acid lanthanum and Titanium hydridization polysilsesquioxane mixed at high speed 20min
The main feeding bin of bar extruder, main feed screw revolving speed are 25rpm, and carbon nanotube is placed in the side feed material of double screw extruder
Storehouse, side feed material screw speed are 30rpm, are added in extruder main barrel through feed screw, engine speed 300rpm, main barrel
Each bringing-up section section control temperature (totally eight sections of outlet from feed opening to head) is 200 DEG C, 220 DEG C, 220 DEG C, 230 DEG C, 235 DEG C,
245 DEG C, 245 DEG C, 250 DEG C, obtain product after the processes such as melting extrusion, granulation, drying process.
Embodiment 4
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, preparation process are as follows: weighing PC resin
(53%), ABS resin (10%), thermoplastic polyester elastomer (3%), carbon nanotube (15%), EMA (4%), PX-200
(10%), phenyl-phosphonic acid lanthanum (3%) Titanium hydridization polysilsesquioxane (2%), drying, by PC, ABS, thermoplastic polyester bullet
Twin-screw is put into after property body, EMA, PX-220, phenyl-phosphonic acid lanthanum and Titanium hydridization polysilsesquioxane mixed at high speed 20min
The main feeding bin of extruder, main feed screw revolving speed are 40rpm, and carbon nanotube is placed in the side feed feed bin of double screw extruder,
Side feed material screw speed is 25rpm, is added in extruder main barrel through feed screw, engine speed 300rpm, main barrel is each
It is 200 DEG C, 220 DEG C, 220 DEG C, 230 DEG C, 235 DEG C, 245 that bringing-up section section, which controls temperature (totally eight sections of outlet from feed opening to head),
DEG C, 245 DEG C, 250 DEG C, obtain product after the processes such as melting extrusion, granulation, drying process.
Embodiment 5
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, preparation process are as follows: weighing PC resin
(59%), ABS resin (11%), thermoplastic polyester elastomer (3.5%), carbon nanotube (15%), EMA (4%), PX-220
(5%), phenyl-phosphonic acid lanthanum (0.5%) Titanium hydridization polysilsesquioxane (2%), drying, by PC, ABS, thermoplastic polyester bullet
Twin-screw is put into after property body, EMA, PX-220, phenyl-phosphonic acid lanthanum and Titanium hydridization polysilsesquioxane mixed at high speed 20min
The main feeding bin of extruder, main feed screw revolving speed are 40rpm, and carbon nanotube is placed in the side feed feed bin of double screw extruder,
Side feed material screw speed is 25rpm, is added in extruder main barrel through feed screw, engine speed 300rpm, main barrel is each
It is 200 DEG C, 220 DEG C, 220 DEG C, 230 DEG C, 235 DEG C, 245 that bringing-up section section, which controls temperature (totally eight sections of outlet from feed opening to head),
DEG C, 245 DEG C, 250 DEG C, obtain product after the processes such as melting extrusion, granulation, drying process.
Embodiment 6
A kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, preparation process are as follows: weighing PC resin
(58%), ABS resin (11%), thermoplastic polyester elastomer (3.5%), carbon nanotube (15%), EMA (4%), PX-220
(5%), phenyl-phosphonic acid lanthanum (3%) Titanium hydridization polysilsesquioxane (0.5%), drying, by PC, ABS, thermoplastic polyester bullet
Twin-screw is put into after property body, EMA, PX-220, phenyl-phosphonic acid lanthanum and Titanium hydridization polysilsesquioxane mixed at high speed 20min
The main feeding bin of extruder, main feed screw revolving speed are 40rpm, and carbon nanotube is placed in the side feed feed bin of double screw extruder,
Side feed material screw speed is 25rpm, is added in extruder main barrel through feed screw, engine speed 300rpm, main barrel is each
It is 200 DEG C, 220 DEG C, 220 DEG C, 230 DEG C, 235 DEG C, 245 that bringing-up section section, which controls temperature (totally eight sections of outlet from feed opening to head),
DEG C, 245 DEG C, 250 DEG C, obtain product after the processes such as melting extrusion, granulation, drying process.
High-intensitive scratch resistant halogen-free flame retardant PC prepared by embodiment 1-6/ABS composite material is prepared into standard with injection molding machine
Sample, for stretching, being bent, impact and the performance tests such as fire-retardant, scoring resistance, the results are shown in Table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Vertical combustion grade | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| Tensile strength | 84 | 80 | 75 | 77 | 83 | 87 |
| Bending strength | 124 | 129 | 137 | 124 | 122 | 123 |
| Bending modulus | 3.28 | 2.80 | 2.88 | 2.80 | 2.78 | 2.77 |
| Notch impact strength | 48 | 51 | 65 | 44 | 42 | 45 |
| Melt index | 19.9 | 20.6 | 19.3 | 33.3 | 24.4 | 23.9 |
| Scoring resistance | 4 grades | 4 grades | 4 grades | 4 grades | 4 grades | 4 grades |
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material, which is characterized in that including following weight percent
The component of calculating:
PC resin 38~71%；
ABS resin 10~34%；
Thermoplastic polyester elastomer 3-5%；
Polyaryl phosphate ester 5~10%；
Phosphenylic acid rare-earth salts 0.5~3%；
Metal hybrid polysilsesquioxane 0.5~2%；
Carbon nanotube 5~15%；
Compatilizer 1~5%；
The polyaryl phosphate ester is bisphenol-A bis- (diphenyl phosphoesters), resorcinol bis- (diphenyl phosphoesters), PX-200
With one of PX-220 aromatic phosphoric ester fire retardant or a variety of；
The phosphenylic acid rare-earth salts is one of phosphenylic acid lanthanum, phosphenylic acid zirconium or phosphenylic acid cerium or a variety of.
2. high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 1, which is characterized in that described
PC resin notch impact strength is 60~120kJ/m2, and melt index is 10~20g/10min under the conditions of 300 DEG C/1.2kg.
3. high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 1, which is characterized in that described
ABS resin notch impact strength is 10~40kJ/m2, and melt index is 5~10g/10min under the conditions of 200 DEG C/5kg.
4. high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 1, which is characterized in that the heat
The shore hardness of plasticity polyester elastomer is 40-60.
5. high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 1, which is characterized in that described
Metal hybrid polysilsesquioxane is titanium hydridization polysilsesquioxane, zirconium hydridization polysilsesquioxane or the poly- silsesquioxane of cerium hydridization
One of alkane is a variety of.
6. high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 1, which is characterized in that described
Carbon nanotube diameter is 5-20nm.
7. high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 1, which is characterized in that described
Compatilizer is ethylene-methyl acrylate-glyceryl methacrylate copolymer, organic-silicon-modified ethylene-vinyl acetate is total
One of polymers, phenylethylene-maleic anhydride, maleic anhydride grafted ABS and polycarbonate organic silicon block copolymer are a variety of.
8. the preparation method of the described in any item high-intensitive scratch resistant halogen-free flame retardant PC/ABS composite materials of claim 1-7,
It is characterized in that, comprising the following steps:
S1, by PC resin, ABS resin, thermoplastic polyester elastomer, carbon nanotube, compatilizer, polyaryl phosphate ester, phenyl phosphorus
Acid rare earth salt and metal hybrid polysilsesquioxane are dry；Then by PC resin, ABS resin, compatilizer, polyaryl phosphate ester,
Phosphenylic acid rare-earth salts and metal hybrid polysilsesquioxane are mixed through high-speed mixer；
S2, the main feeding bin that mixed raw material is placed in equidirectional parallel double-screw extruder, are added to extrusion through feed screw
In the barrel of machine, carbon nanotube is added in barrel by side feed feed bin, the processing temperature of eight sections of bringing-up sections is from charging in barrel
Mouth exports successively to head are as follows: 190~200 DEG C, 210~220 DEG C, 210~220 DEG C, 210~220 DEG C, 220~230 DEG C, 225
~235 DEG C, 235~245 DEG C, 240~250 DEG C obtain the PC/ABS mixing after melting extrusion, granulation and drying process
Object.
9. the preparation method of high intensity scratch resistant halogen-free flame retardant PC/ABS composite material according to claim 8, feature
It is, the drying of the PC resin, ABS resin, thermoplastic polyester elastomer and carbon nanotube is placed in 70~90 DEG C of baking ovens
Middle drying 6~12 hours；Compatilizer, polyaryl phosphate ester, phosphenylic acid rare-earth salts and the poly- silsesquioxane of metal hybrid
The drying of alkane is placed in 60~80 DEG C of vacuum drying ovens and is dried in vacuo 6~12 hours.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117183A (en) * | 2019-12-12 | 2020-05-08 | 上海普利特复合材料股份有限公司 | Antistatic, low-smoke, halogen-free and flame-retardant PC/ABS blending material and preparation method thereof |
| CN115703924A (en) * | 2021-08-06 | 2023-02-17 | 汉达精密电子(昆山)有限公司 | High-impact-resistance conductive PC/ABS composite material |
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2017
- 2017-12-24 CN CN201711413434.4A patent/CN109957225A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117183A (en) * | 2019-12-12 | 2020-05-08 | 上海普利特复合材料股份有限公司 | Antistatic, low-smoke, halogen-free and flame-retardant PC/ABS blending material and preparation method thereof |
| CN115703924A (en) * | 2021-08-06 | 2023-02-17 | 汉达精密电子(昆山)有限公司 | High-impact-resistance conductive PC/ABS composite material |
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