CN103613916A - PC/ABS alloy modified engineering plastic dedicated for laptop casings and production method thereof - Google Patents
PC/ABS alloy modified engineering plastic dedicated for laptop casings and production method thereof Download PDFInfo
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- CN103613916A CN103613916A CN201310523104.6A CN201310523104A CN103613916A CN 103613916 A CN103613916 A CN 103613916A CN 201310523104 A CN201310523104 A CN 201310523104A CN 103613916 A CN103613916 A CN 103613916A
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Abstract
The invention discloses a PC/ABS alloy modified engineering plastic dedicated for laptop casings. The plastic comprises the following components in percentage by weight: 22% to 65% of polycarbonate, 1% to 10% of compatilizer, 22% to 65% of acrylonitrile-butadiene-styrene, 5% to 40% of mineral filling material, 0.3% to 1% of antioxidant, 3% to 20% of halogen-free fire retardant, 0.5% to 2% of dispersed lubricant, and 3% to 20% of flexibilizer. The invention also discloses a production method of the PC/ABS alloy modified engineering plastic dedicated for laptop casings. The PC/ABS alloy modified engineering plastic dedicated for laptop casings has the advantages of capability of being recycled and utilized, multi-choice of color and outer layer treatment, stable size, good heat radiation property, and high cost performance. The production method has the advantages of simple operation and suitability for mass production.
Description
Technical field
The present invention relates to high molecule plastic material technology field, be specifically related to the special-purpose PC/ABS alloy modification engineering plastics of a kind of notebook computer casing field.
Background technology
The shell of notebook computer is the most direct mode of protection body, is also the important factor that affects its radiating effect, " body weight ", aesthetics.Notebook computer shell material mainly contains three kinds: hardness plastic shell; Metallic alloy shell; The fine alloy shell of carbon.One, hardness plastic shell, traditional notebook adopts hardness plastic shell more, and its weight is large, intensity is not very high and poor radiation, duration of service one is long, shell just has wearing and tearing or distortion in various degree, with hand one, presses shell, just looks like to be that the drum head bullet of equally can sagging again comes up.Current most manufacturer has all abandoned this material.Two, metallic alloy shell, can be divided into hydronalium and titanium alloy material etc. multiple, but aluminum magnesium alloy is not very firm wear-resisting, has grown duration of service according to selected alloy difference, and original silvery white can grind off, and exposes its dimmed true colours; If scratched because of carelessness, cut can be very obvious, and metallic alloy shell is unfavorable for recycling, not environmental protection.Three, the fine alloy shell of carbon, price is comparatively expensive conventionally, and production cost is high, and the complex forming technology of the fine alloy shell of carbon, and plasticity-is poor.
Summary of the invention
Main purpose of the present invention is the defect for prior art, and a kind of recyclable recycling, color and the outer special-purpose PC/ABS alloy modification of a kind of Novel laptop shell engineering plastics that have multiple choices, dimensional stabilizing, perfect heat-dissipating, high performance-price ratio of processing are provided.
Another object of the present invention is to provide a kind of method of producing the special-purpose PC/ABS alloy modification of above-mentioned notebook computer casing engineering plastics, and the method is simple to operate, is applicable to extensive preparation.
Technical scheme disclosed by the invention is as follows:
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, densitometer by weight percentage, comprises following component:
Polycarbonate 22% ~ 65%; Compatilizer 1% ~ 10%;
Acrylonitrile-butadiene-styrene copolymer 22% ~ 65%; Mineral filler 5% ~ 40%;
Antioxidant 0.3% ~ 1%; Halogen-free flame retardants 3% ~ 20%;
Dispersed lubricant 0.5% ~ 2%; Toughner 3% ~ 20%.
Preferably, the mass percent concentration of described component is:
Polycarbonate 28% ~ 52%; Compatilizer 4% ~ 8%;
Acrylonitrile-butadiene-styrene copolymer 25% ~ 45%; Mineral filler 5% ~ 20%;
Antioxidant 0.3% ~ 0.5%; Halogen-free flame retardants 10% ~ 20%;
Dispersed lubricant 0.3% ~ 1%; Toughner 3% ~ 10%.
Preferably, the mass percent concentration of described component is:
Polycarbonate 42%; Compatilizer 4%;
Acrylonitrile-butadiene-styrene copolymer 22.2%; Mineral filler 15%;
Antioxidant 0.3%; Halogen-free flame retardants 12%;
Dispersed lubricant 0.5%; Toughner 4%.
Preferably, the mass percent concentration of described component is:
Polycarbonate 54.4%; Compatilizer 2%;
Acrylonitrile-butadiene-styrene copolymer 30%; Mineral filler 5%;
Antioxidant 0.6%; Halogen-free flame retardants 3%;
Dispersed lubricant 2%; Toughner 3%.
Preferably, the mass percent concentration of described component is:
Polycarbonate 28%; Compatilizer 2%;
Acrylonitrile-butadiene-styrene copolymer 26.3%; Mineral filler 20%;
Antioxidant 0.9%; Halogen-free flame retardants 17%;
Dispersed lubricant 1.8%; Toughner 4%.
Preferably, the mass percent concentration of described component is:
Polycarbonate 23%; Compatilizer 9%;
Acrylonitrile-butadiene-styrene copolymer 23%; Mineral filler 22.1%;
Antioxidant 0.4%; Halogen-free flame retardants 4%;
Dispersed lubricant 0.5%; Toughner 18%.
In order to make material property more excellent, each component can be more preferably: described polycarbonate is that melting index is the powder polycarbonate of 25 ~ 6g/10min;
Described compatilizer is any one or a few the combination in atactic styrene-maleic anhydride copolymer (SMA), maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer (ABS), maleic anhydride graft vinylbenzene-polyethylene-polybutene-polystyrene block copolymer (SEBS), maleic anhydride stem grafting polyolefin elastomerics (POE), ethylene methyl acrylate copolymer;
Described mineral filler is any one or the arbitrarily several combination in nanometer grade calcium carbonate, nanomete talc powder, ultrafine mica powder, precipitated super-fine barium sulfate, powder glass fiber, glass fibre, carbon fiber;
Described antioxidant is any one or the arbitrarily several combination in phenolic antioxidant, phosphite ester kind antioxidant, amine antioxidants;
Described halogen-free flame retardants is any one or several combination arbitrarily in the phosphate flame retardant of aggretion type, oligomeric aryl phosphate ester, dihydroxyphenyl propane two (diphenyl phosphoester), triphenylphosphates, sulfonate;
Described dispersed lubricant is any one or the arbitrarily several combination in montanin wax, polyethylene wax, pentaerythritol stearate, stearate;
Described toughner is any one or the arbitrarily several combination in MBS terpolymer, ethylene butyl acrylate multipolymer, high glue powder, ethylene vinyl acetate.
In technique scheme: the polycarbonate powder in described melting index, than adopting general pellet polycarbonate to have better plasticizing capacity, thereby make dispersion of materials even, various aspects of performance is more balanced; If mineral filler takes the mode of powder filler and carbon fiber use can control better the surface effect of material on the basis of improving rigidity of material intensity; Novel carbon fiber material wherein can make the product performance that make better, and quality is lighter, and thickness is thinner.Antioxidant can be above-mentioned several material mixture in any proportion.
In order to make material property more excellent, each component also can be more preferably: described polycarbonate is the powder polycarbonate that melting index is respectively any one or any several combinations of 25g/10min, 9 g/10min, 12.5 g/10min, 6 g/10min, 22 g/10min or six kinds of specifications of 10 g/10min;
Described compatilizer is atactic styrene-maleic anhydride copolymer;
Described mineral filler is any one or the arbitrarily several combination in nanomete talc powder, powder glass fiber, glass fibre, carbon fiber;
Described antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three ［ 2,4-di-tert-butyl-phenyl ］ any one or several combination arbitrarily in phosphorous acid ester, three kinds of materials of β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid;
Described halogen-free flame retardants is any one or several combination arbitrarily in the phosphate flame retardant of aggretion type, oligomeric aryl phosphate ester, dihydroxyphenyl propane two (diphenyl phosphoester), triphenylphosphates, sulfonate;
Described dispersed lubricant is low-molecular-weight polyolefin fiber;
Described toughner is any one or the arbitrarily several combination in MBS terpolymer, ethylene butyl acrylate multipolymer, high glue powder, ethylene vinyl acetate.
In technique scheme: the plasticizing capacity of the powder polycarbonate of the above concrete melting index limiting is more excellent, makes dispersion of materials more even; Low-molecular-weight polyolein fiber is a kind of low-molecular-weight polyolefin fiber of producing from dominant patent catalysis technique that Mitsui Chemicals provides, and both can disperse as lubricated, can be used as again properties-correcting agent and makes for improving the shock strength of formula system; Atactic styrene-maleic anhydride copolymer, mainly serve as compatilizer, thermo-stabilizer machining agent, dispersion agent, increase-volume coupling agent of macromolecule product etc., for the modification of all kinds of engineering plastics, play reduction interfacial tension, improve the effect of consistency, thermotolerance, processibility; In atactic styrene-maleic anhydride copolymer molecular structure, there is the anhydride group of nonpolar aromatic ring yl and polarity, therefore good with various polarity or non-polar material and glass consistency, thus the polyblend performance making is more good.
More preferably, described polycarbonate is the powder polycarbonate that the melting index of U.S. GE company product is 25g/10min, the powder polycarbonate that the melting index that U.S. GE company produces is 9g/10min, the powder polycarbonate that the melting index that U.S. GE company produces is 12.5g/10min, the powder polycarbonate that the melting index that Korea S San Yang company produces is 6g/10min, the powder polycarbonate that the melting index that Korea S San Yang company produces is 22g/10min, any one in the powder polycarbonate that the melting index that Korea S San Yang company produces is 10g/10min or several combination arbitrarily.
More preferably, described acrylonitrile-butadiene-phenylethylene multipolymer is that the trade mark that Taiwan Qi Mei company produces is that the trade mark that PA-757, Shanghai Gaoqiao petrochemical industry are produced is 8391, LG Corp of South Korea is produced the trade mark is any one or several combination arbitrarily in the trade mark that trade mark Wei181, U.S. GE company that 121-H, Korea S Jin Hu company produce the produces acrylonitrile-butadiene-phenylethylene multipolymer that is 338.
A method of producing the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics, comprises the steps:
1. quantitative polycarbonate is placed in to dehumidifying heat pump, at drying temperature, be under the condition of 80 ~ 120 ℃ dry 3 ~ 5 hours stand-by, again quantitative acrylonitrile-butadiene-styrene copolymer is placed in to dehumidifying heat pump, under 60 ~ 90 ℃ of conditions dry 1 ~ 3 hour stand-by;
2. compatilizer, antioxidant, dispersed lubricant, toughner are weighed according to each component ratio, be placed in mixing in high-speed mixer and after 5 ~ 10 minutes, emit stand-by;
3. halogen-free flame retardants is added to special liquid filling apparatus, at 85 ℃ of temperature, preheat 1 ~ 3 hour, stand-by;
4. by described step 1., 2., 3. in stand-by material and mineral filler add respectively duplex forcing machine to carry out blending extrusion granulation;
5. material strip is crossed water cooling, is dried up, pelletizing, sieves, dries.
Preferably, described step 1. in polycarbonate to be placed in dehumidifying heat pump drying temperature be 120 ℃, dry 3 hours; Acrylonitrile-butadiene-styrene copolymer drying temperature is 80 ℃, and be 2 hours time of drying; It is 5 minutes that described step is placed in mixing time in high-speed mixer in 2.; Step is middle halogen-free flame retardants 3., preheats 3 hours.
The machine using in the production method of the special-purpose PC/ABS alloy modification of a kind of Novel laptop shell of the present invention engineering plastics is twin screw extruder, and production method step joins twin-screw extrusion owner loading hopper by the material mixing in 2. in step in 4.; Step 3. middle Halogen liquid flame retardant is injected from forcing machine 5th district by special liquid measuring apparatus; Mineral filler adds fine mouthful at forcing machine and enters; The ratio of adjusting is carried out blending extrusion granulation.Described twin screw extruder is cord wood twin screw extruder in the same way, and screw slenderness ratio is 40:1, band metering-type side drawing-in device, and side feeding adds from forcing machine 5th district, the weightless liquid metering device that claims of band, liquid Cong injects in 6th district.High-strength combination during screw combinations adopts.The parameters of this twin screw extruder is in addition: the temperature of each section is: 240 ℃, 215 220 235 ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, five 245 ℃, 245 250 250 ℃， 8th district, ℃， 7th district, ℃， 6th district, districts, nine 240 ℃, 245 ，Shi mono-district, 245 ℃, tenth district of ℃，, districts, 235 ℃ of heads; Engine speed is set as 30HZ, and main feeding machine speed setting is 20HZ, and side feeding machine speed setting is 5HZ.
With respect to prior art, the present invention has following beneficial effect:
One, the special-purpose PC/ABS alloy modification of notebook computer casing of the present invention engineering plastics cost is low, various aspects of performance is balanced, stable, there is good injection molding performance, resistance toheat, and flame retardant properties;
Two, the special-purpose PC/ABS alloy modification of notebook computer casing of the present invention engineering plastics rigidity intensity is high, has good surface spraying and baking finish result simultaneously;
Three, the special-purpose PC/ABS alloy modification of notebook computer casing of the present invention engineering plastics light weight, recyclable recycling, color and outer processing have multiple choices, dimensional stabilizing, perfect heat-dissipating.
Four, the method for the special-purpose PC/ABS alloy modification of production notebook computer casing of the present invention engineering plastics, operation steps is simple, is applicable to extensive preparation.
The property indices of process measuring engineering plastics of the present invention is in Table 1:
Embodiment
For better understanding invention, below in conjunction with embodiment, the invention will be further elaborated.
Embodiment 1
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter by weight, contains following component:
Polycarbonate 42%; Compatilizer 4%;
Acrylonitrile-butadiene-styrene (ABS) 22.2%; Mineral filler 15%;
Antioxidant 0.3%; Halogen-free flame retardants 12%;
Dispersed lubricant 0.5%; Toughner 4%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 9g/10min; Compatilizer is maleic anhydride stem grafting polyolefin elastomerics and ethylene methyl acrylate copolymer mixture in any proportion; Mineral filler is nanometer grade calcium carbonate, ultrafine mica powder, precipitated super-fine barium sulfate, glass fibre, carbon fiber mixture in any proportion; Antioxidant is phosphite ester kind antioxidant and amine antioxidants mixture in any proportion; Halogen-free flame retardants is oligomeric aryl phosphate ester, triphenylphosphate, sulfonate mixture in any proportion; Dispersed lubricant is montanin wax and stearate mixture in any proportion; Toughner is high glue powder and ethylene vinyl acetate mixture in any proportion.
A method of producing the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics, comprises the steps:
1. quantitative polycarbonate is placed in to dehumidifying heat pump, at drying temperature, be under the condition of 80 ~ 120 ℃ dry 3 ~ 5 hours stand-by, again quantitative acrylonitrile-butadiene-styrene copolymer is placed in to dehumidifying heat pump, under 60 ~ 90 ℃ of conditions dry 1 ~ 3 hour stand-by;
2. compatilizer, antioxidant, dispersed lubricant, toughner are weighed according to each component ratio, be placed in mixing in high-speed mixer and after 5 ~ 10 minutes, emit stand-by;
3. halogen-free flame retardants is added to special liquid filling apparatus, at 85 ℃ of temperature, preheat 1 ~ 3 hour, stand-by;
4. by described step 1., 2., 3. in stand-by material and mineral filler add respectively duplex forcing machine to carry out blending extrusion granulation;
5. material strip is crossed water cooling, is dried up, pelletizing, sieves, dries.
Production method step joins twin-screw extrusion owner loading hopper by the material mixing in 2. in step in 4.; Step 3. middle Halogen liquid flame retardant is injected from forcing machine 5th district by special liquid measuring apparatus; Mineral filler adds fine mouthful at forcing machine and enters; The ratio of adjusting is carried out blending extrusion granulation.Described twin screw extruder is cord wood twin screw extruder in the same way, and screw slenderness ratio is 40:1, band metering-type side drawing-in device, and side feeding adds from forcing machine 5th district, the weightless liquid metering device that claims of band, liquid Cong injects in 6th district.High-strength combination during screw combinations adopts.The parameters of this twin screw extruder is in addition: the temperature of each section is: 240 ℃, 215 220 235 ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, five 245 ℃, 245 250 250 ℃， 8th district, ℃， 7th district, ℃， 6th district, districts, nine 240 ℃, 245 ，Shi mono-district, 245 ℃, tenth district of ℃，, districts, 235 ℃ of heads; Engine speed is set as 30HZ, and main feeding machine speed setting is 20HZ, and side feeding machine speed setting is 5HZ.
Embodiment 2
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter contains following component by weight:
Polycarbonate 54.4%; Compatilizer 2%;
Acrylonitrile-butadiene-styrene (ABS) 30%; Mineral filler 5%;
Antioxidant 0.6%; Halogen-free flame retardants 3%;
Dispersed lubricant 2%; Toughner 3%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 25g/10min; Compatilizer is that atactic styrene-maleic anhydride copolymer and two kinds of material arbitrary proportions of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer mix; Mineral filler is that powder glass fiber and two kinds of material arbitrary proportions of carbon fiber mix; Antioxidant is phenolic antioxidant; Halogen-free flame retardants is that the phosphate flame retardant PX200(of aggretion type is produced by Japanese great Ba company); Dispersed lubricant is that montanin wax and two kinds of material arbitrary proportions of polyethylene wax mix; Toughner is ethylene butyl acrylate multipolymer.
In the present embodiment, produce the method for the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics with embodiment 1.
Embodiment 3
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter contains following component by weight:
Polycarbonate 28%; Compatilizer 2%;
Acrylonitrile-butadiene-styrene (ABS) 26.3%; Mineral filler 20%;
Antioxidant 0.9%; Halogen-free flame retardants 17%;
Dispersed lubricant 1.8%; Toughner 4%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 12.5g/10min; Compatilizer is maleic anhydride grafted polystyrene-polyethylene-polybutene-polystyrene block copolymer; Mineral filler is that nanomete talc powder, carbon fiber and powder glass fiber arbitrary proportion mix; Antioxidant is amine antioxidants; Halogen-free flame retardants is dihydroxyphenyl propane two (diphenyl phosphoester); Dispersed lubricant is that polyethylene wax and pentaerythritol stearate arbitrary proportion mix; Toughner is the MBS terpolymer of nucleocapsid structure.
In the present embodiment, produce the method for the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics with embodiment 1.
Embodiment 4
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter contains following component by weight:
Polycarbonate 23%; Compatilizer 9%;
Acrylonitrile-butadiene-styrene (ABS) 23%; Mineral filler 22.1%;
Antioxidant 0.4%; Halogen-free flame retardants 4%;
Dispersed lubricant 0.5%; Toughner 18%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 22 g/10min; Compatilizer is atactic styrene-maleic anhydride copolymer; Mineral filler is nanomete talc powder, powder glass fiber, glass fibre, carbon fiber mixture in any proportion; Antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three ［ 2,4-di-tert-butyl-phenyl ］ phosphorous acid ester, three kinds of materials of β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid mixture in any proportion; Halogen-free flame retardants is the phosphate flame retardant of aggretion type, oligomeric aryl phosphate ester, dihydroxyphenyl propane two (diphenyl phosphoester), triphenylphosphates, sulfonate mixture in any proportion; Dispersed lubricant is low-molecular-weight polyolefin fiber; Toughner is mixture in any proportion in MBS terpolymer, ethylene butyl acrylate multipolymer, high glue powder, ethylene vinyl acetate.
In the present embodiment, produce the method for the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics with embodiment 1.
Embodiment 5
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter contains following component by weight:
Polycarbonate 65%; Compatilizer 1%;
Acrylonitrile-butadiene-styrene (ABS) 22%; Mineral filler 5%;
Antioxidant 0.5%; Halogen-free flame retardants 3%;
Dispersed lubricant 0.5%; Toughner 3%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 10g/10min; Compatilizer is atactic styrene-maleic anhydride copolymer; Mineral filler is nanomete talc powder, powder glass fiber and carbon fiber mixture in any proportion; Antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and three ［ 2,4-di-tert-butyl-phenyl ］ phosphorous acid ester mixture in any proportion; Halogen-free flame retardants is the phosphate flame retardant of aggretion type; Dispersed lubricant is low-molecular-weight polyolefin fiber; Toughner is ethylene butyl acrylate multipolymer.
In the present embodiment, produce the method for the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics with embodiment 1.
Embodiment 6
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter contains following component by weight:
Polycarbonate 22%; Compatilizer 1%;
Acrylonitrile-butadiene-styrene (ABS) 65%; Mineral filler 5%;
Antioxidant 0.3%; Halogen-free flame retardants 3%;
Dispersed lubricant 0.7%; Toughner 3%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 15g/10min; Compatilizer is atactic styrene-maleic anhydride copolymer; Mineral filler is nanomete talc powder and carbon fiber mixture in any proportion; Antioxidant is three ［ 2,4-di-tert-butyl-phenyl ］ phosphorous acid ester; Halogen-free flame retardants is the phosphate flame retardant of aggretion type; Dispersed lubricant is low-molecular-weight polyolefin fiber; Toughner is ethylene butyl acrylate multipolymer.
In the present embodiment, produce the method for the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics with embodiment 1.
Embodiment 7
The special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, percentage composition meter contains following component by weight:
Polycarbonate 28%; Compatilizer 1%;
Acrylonitrile-butadiene-styrene (ABS) 23%; Mineral filler 40%;
Antioxidant 0.3%; Halogen-free flame retardants 4%;
Dispersed lubricant 0.5%; Toughner 3.2%.
Wherein, polycarbonate is that melting index is the powder polycarbonate of 6g/10min; Compatilizer is atactic styrene-maleic anhydride copolymer; Mineral filler is nanomete talc powder, powder glass fiber and carbon fiber mixture in any proportion; Antioxidant is three ［ 2,4-di-tert-butyl-phenyl ］ phosphorous acid ester, the positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid mixture in any proportion; Halogen-free flame retardants is dihydroxyphenyl propane two (diphenyl phosphoester); Dispersed lubricant is low-molecular-weight polyolefin fiber; Toughner is ethylene butyl acrylate multipolymer, high glue powder, ethylene vinyl acetate mixture in any proportion.In the present embodiment, produce the method for the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics with embodiment 1.
Claims (10)
1. the special-purpose PC/ABS alloy modification of notebook computer casing engineering plastics, is characterized in that: densitometer by weight percentage, comprises following component:
Polycarbonate 22% ~ 65%; Compatilizer 1% ~ 10%;
Acrylonitrile-butadiene-styrene copolymer 22% ~ 65%; Mineral filler 5% ~ 40%;
Antioxidant 0.3% ~ 1%; Halogen-free flame retardants 3% ~ 20%;
Dispersed lubricant 0.5% ~ 2%; Toughner 3% ~ 20%.
2. the special-purpose PC/ABS alloy modification of notebook computer casing according to claim 1 engineering plastics, is characterized in that: the mass percent concentration of described component is:
Polycarbonate 28% ~ 52%; Compatilizer 4% ~ 8%;
Acrylonitrile-butadiene-styrene copolymer 25% ~ 45%; Mineral filler 5% ~ 20%;
Antioxidant 0.3% ~ 0.5%; Halogen-free flame retardants 10% ~ 20%;
Dispersed lubricant 0.3% ~ 1%; Toughner 3% ~ 10%.
3. the special-purpose PC/ABS alloy modification of notebook computer casing according to claim 1 engineering plastics, is characterized in that: the mass percent concentration of described component is:
Polycarbonate 42%; Compatilizer 4%;
Acrylonitrile-butadiene-styrene copolymer 22.2%; Mineral filler 15%;
Antioxidant 0.3%; Halogen-free flame retardants 12%;
Dispersed lubricant 0.5%; Toughner 4%.
4. the special-purpose PC/ABS alloy modification of notebook computer casing according to claim 1 engineering plastics, is characterized in that: the mass percent concentration of described component is:
Polycarbonate 54.4%; Compatilizer 2%;
Acrylonitrile-butadiene-styrene copolymer 30%; Mineral filler 5%;
Antioxidant 0.6%; Halogen-free flame retardants 3%;
Dispersed lubricant 2%; Toughner 3%.
5. the special-purpose PC/ABS alloy modification of notebook computer casing according to claim 1 engineering plastics, is characterized in that: the mass percent concentration of described component is:
Polycarbonate 28%; Compatilizer 2%;
Acrylonitrile-butadiene-styrene copolymer 26.3%; Mineral filler 20%;
Antioxidant 0.9%; Halogen-free flame retardants 17%;
Dispersed lubricant 1.8%; Toughner 4%.
6. the special-purpose PC/ABS alloy modification of notebook computer casing according to claim 1 engineering plastics, is characterized in that: the mass percent concentration of described component is:
Polycarbonate 23%; Compatilizer 9%;
Acrylonitrile-butadiene-styrene copolymer 23%; Mineral filler 22.1%;
Antioxidant 0.4%; Halogen-free flame retardants 4%;
Dispersed lubricant 0.5%; Toughner 18%.
7. according to the special-purpose PC/ABS alloy modification of the notebook computer casing described in arbitrary claim in claim 1 ~ 6 engineering plastics, it is characterized in that:
Described polycarbonate is that melting index is the powder polycarbonate of 25 ~ 6g/10min;
Described compatilizer is any one or a few the combination in atactic styrene-maleic anhydride copolymer, maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, maleic anhydride grafted polystyrene-polyethylene-polybutene-polystyrene block copolymer, maleic anhydride stem grafting polyolefin elastomerics, ethylene methyl acrylate copolymer;
Described mineral filler is any one or the arbitrarily several combination in nanometer grade calcium carbonate, nanomete talc powder, ultrafine mica powder, precipitated super-fine barium sulfate, powder glass fiber, glass fibre, carbon fiber;
Described antioxidant is any one or the arbitrarily several combination in phenolic antioxidant, phosphite ester kind antioxidant, amine antioxidants;
Described halogen-free flame retardants is any one or several combination arbitrarily in the phosphate flame retardant of aggretion type, oligomeric aryl phosphate ester, dihydroxyphenyl propane two (diphenyl phosphoester), triphenylphosphates, sulfonate;
Described dispersed lubricant is any one or the arbitrarily several combination in montanin wax, polyethylene wax, pentaerythritol stearate, stearate;
Described toughner is any one or the arbitrarily several combination in MBS terpolymer, ethylene butyl acrylate multipolymer, high glue powder, ethylene vinyl acetate.
8. according to the special-purpose PC/ABS alloy modification of the notebook computer casing described in arbitrary claim in claim 1 ~ 6 engineering plastics, it is characterized in that:
Described polycarbonate is the powder polycarbonate that melting index is respectively any one or any several combinations of 25g/10min, 9 g/10min, 12.5 g/10min, 6 g/10min, 22 g/10min or six kinds of specifications of 10 g/10min;
Described compatilizer is atactic styrene-maleic anhydride copolymer;
Described mineral filler is any one or the arbitrarily several combination in nanomete talc powder, powder glass fiber, glass fibre, carbon fiber;
Described antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three ［ 2,4-di-tert-butyl-phenyl ］ any one or several combination arbitrarily in phosphorous acid ester, three kinds of materials of β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid;
Described halogen-free flame retardants is any one or several combination arbitrarily in the phosphate flame retardant of aggretion type, oligomeric aryl phosphate ester, dihydroxyphenyl propane two (diphenyl phosphoester), triphenylphosphates, sulfonate;
Described dispersed lubricant is low-molecular-weight polyolefin fiber;
Described toughner is any one or the arbitrarily several combination in MBS terpolymer, ethylene butyl acrylate multipolymer, high glue powder, ethylene vinyl acetate.
9. a method for the special-purpose PC/ABS alloy modification of any Novel laptop shell engineering plastics in production claim 1 ~ 6, comprises the steps:
1. quantitative polycarbonate is placed in to dehumidifying heat pump, at drying temperature, be under the condition of 80 ~ 120 ℃ dry 3 ~ 5 hours stand-by, again quantitative acrylonitrile-butadiene-styrene copolymer is placed in to dehumidifying heat pump, under 60 ~ 90 ℃ of conditions dry 1 ~ 3 hour stand-by;
2. compatilizer, antioxidant, dispersed lubricant, toughner are weighed according to each component ratio, be placed in mixing in high-speed mixer and after 5 ~ 10 minutes, emit stand-by;
3. halogen-free flame retardants is added to special liquid filling apparatus, at 85 ℃ of temperature, preheat 1 ~ 3 hour, stand-by;
4. by described step 1., 2., 3. in stand-by material and mineral filler add respectively duplex forcing machine to carry out blending extrusion granulation;
5. material strip is crossed water cooling, is dried up, pelletizing, sieves, dries.
10. a kind of method of producing the special-purpose PC/ABS alloy modification of Novel laptop shell engineering plastics according to claim 9, is characterized in that: described step 1. in polycarbonate to be placed in dehumidifying heat pump drying temperature be 120 ℃, dry 3 hours; Acrylonitrile-butadiene-styrene copolymer drying temperature is 80 ℃, and be 2 hours time of drying; It is 5 minutes that described step is placed in mixing time in high-speed mixer in 2.; Step is middle halogen-free flame retardants 3., preheats 3 hours.
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