CN106800740A - A kind of preparation method of shock resistance engineering plastics - Google Patents
A kind of preparation method of shock resistance engineering plastics Download PDFInfo
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- CN106800740A CN106800740A CN201710076498.3A CN201710076498A CN106800740A CN 106800740 A CN106800740 A CN 106800740A CN 201710076498 A CN201710076498 A CN 201710076498A CN 106800740 A CN106800740 A CN 106800740A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K2201/00—Specific properties of additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of preparation method of shock resistance engineering plastics, the major ingredient that methods described is used is shock resistance polyphenylene oxide composite material, by the control to the base material component in major ingredient, and base material component is modified using graft so that shock resistance engineering plastics of the invention have excellent high/low temperature notched impact properties, weatherability；Contain the anti-aging materials such as fire proofing and wollastonite raphioid fiber such as Graphene, titanium dioxide, halloysite nanotubes in the modified aging-resistant flame-proof system that methods described is used, form compound cooperative effect, the fire resistance and ageing resistace of significant increase engineering plastics；Methods described is coordinated using graphite nanosheets with shock resistance polyphenylene oxide composite material, is cooperateed with its performance and is promoted, and while improving processability, improves the heat resistance and corrosion resistance of engineering plastics, and assign engineering plastics certain antistatic behaviour.
Description
Technical field
The present invention relates to engineering plastics technical field, more particularly to a kind of preparation method of shock resistance engineering plastics.
Background technology
Engineering plastics refer to the plastics that can make engineering material and replace metal manufacture machine parts etc., and engineering plastics include
Acetal, makrolon (PC), polyphenylene sulfide, polysulfones, modified polyphenylene oxide, polyimides, polyamide (PA), poly terephthalic acid
Butanediol ester (PBT), acrylonitrile-butadiene-phenylethylene copolymer (ABS), liquid crystal polymer (LCP), Ethylene-vinyl acetate are common
Polymers (EVA), and for other plastics of engineering purpose.Engineering plastics have excellent combination property, and rigidity is big, creep
Small, high mechanical strength is heat-resist, and electrical insulating property is good, can for a long time be used in harsher chemistry, physical environment, alternative
Metal is used as structural timber.
Traditional HIPS materials (i.e. high impact polystyrene, high impact polystyrene) are to use polymerisation in bulk
Method will carry out thermal polymerization (or radical polymerization) and obtains as the rubber of toughener and styrene monomer.HIPS biggest advantages
It is impact strength very high, it is higher than ABS more than 4 times.Impact resistance polystyrene (HIPS) is by adding poly- in polystyrene
A kind of shock proof polystyrene products of the method production of butyl rubber particle.
HIPS personality is cheap, and with preferable impact resistance, but obviously shortcoming is there is also, HIPS materials
Glossiness is poor, and combination property is also relatively weaker, because HIPS is modified by PS plus butadiene forming, because PS's rushes
Hit intensity is very low, and the product made is very crisp.Although adding toughening agent modified polystyrene and produce can improve rushing for polystyrene material
Performance is hit, but the addition of excessive toughener can increase the melt viscosity that polystyrene is produced, so that polystyrene is produced adding
Work is difficult, causes power consumption to improve and product deterioration.In current method of modifying, it is extremely difficult between impact resistance and processing characteristics
Balance.
Polyphenylene oxide is a kind of combination property noncrystalline resin of good thermoplasticity, with rigidity it is big, heat resistance is high, anti-flammability
Well, good electrical insulation properties, the advantages of, but existing Noryl low temperature impact properties are poor, solvent resistance
Difference, under stress, intolerant to aromatic hydrocarbon, halogenated hydrocarbons, ketone and esters, easy swelling and stress cracking.
The content of the invention
The invention provides a kind of preparation method of shock resistance engineering plastics, the deficiency of existing anti-ballistic materials is solved,
Shock resistance engineering plastics notched impact properties that the present invention is obtained, weatherability are all very excellent, and fire resistance is good.
In order to solve the above technical problems, the invention provides a kind of preparation method of shock resistance engineering plastics including as follows
Step：
（1）According to following weight portion dispensing：
73-85 parts of shock resistance polyphenylene oxide composite material
Modified 8-10 parts of aging-resistant flame-proof system
0.3-0.5 parts of modified nano graphite microplate
Antioxidant 1-1.5 parts
Toughener 1-2 parts
Lubricant 0.2-0.4 parts；
Wherein described shock resistance polyphenylene oxide composite material includes base material and graft, wherein, the base material is polyphenylene oxide and polyphenyl
Vinyl mixture, the graft is the mixture of maleic anhydride and citric acid；
At least include kaolin, halloysite nanotubes, Graphene, titanium dioxide and silicon in wherein described modified aging-resistant flame-proof system
Lime stone raphioid fiber；
（2）Above-mentioned all dispensings are stirred 80-100 minutes at 115-125 DEG C, mixing speed is 300-500r/min, makes it
It is well mixed；
The fusion plastification granulation in double screw extruder, the double screw extruder includes six humidity provinces sequentially arranged, one
175-185 DEG C of area's temperature, two 195-205 DEG C of area's temperature, three 205-215 DEG C of area's temperature, four 225-235 DEG C of area's temperature, five area's temperature
245-255 DEG C of degree, six 235-245 DEG C of area's temperature, 235-245 DEG C of head temperature；Screw speed 150-180r/min, is obtained anti-impact
Hit engineering plastics.
Preferably, the shock resistance polyphenylene oxide composite material is obtained using following technique：
The base material and the graft are granulated by melting extrusion and obtains shock resistance polyphenylene oxide composite material, the base material and connect
Branch thing weight ratio be（60-75）：（5-12）, base material and graft melting extrusion treatment condition be：Temperature is 220-230
DEG C, vacuum is 5-15Pa, and extruder revolution is 450-600 r/min, that is, shock resistance polyphenylene oxide composite material is obtained.
Preferably, the mass ratio of polyphenylene oxide and polystyrene resin is in the base material（10-15）：（3-5）, the grafting
The mass ratio of maleic anhydride and citric acid is 1 in thing：（1-3）.
Preferably, the modified aging-resistant flame-proof system is prepared from by the following method：
1-3 parts of nano kaoline is taken by mass fraction, 2-4 parts of mass fraction is the potassium bicarbonate aqueous solution of 25-35%, 1.2-
1.5 parts of a diameter of 50-100nm of characterization parameter, halloysite nanotubes that length is 5-10 μm, 1.5-1.8 parts of Graphene, 0.5-
0.8 part of titanium dioxide, 0.5-0.7 parts of lauryl amine APEO, 1-1.2 parts of draw ratio is 10-13:1 wollastonite raphioid fiber,
It is well mixed, stirred in 170-190 DEG C of superheated steam reactor, decatize reaction 35-50min, in 450-480 DEG C of vacuum microwave
Radiation 3-5h, is then dipped in the sulfamic acid solution vacuum moisture absorption treatment that 90-110 part mass fraction is 35%, is heated after inhaling thoroughly
To 75-85 DEG C of ultrasonic wave dispersion 1-2.5h, it is stirred for disperseing 3-5h, takes suspension；
By mass fraction by 3-5 parts of suspension microwave plasma etching processing 25-30min of above-mentioned acquisition, matter is contained with 50-80 parts
The deionized water of amount fraction 3-5% PTPP dispersion liquids ultrasonication 15-30min at 65-75 DEG C, takes upper strata suspension
Thing is filtered through 100-150 mesh, distilled water washes clean, vacuum drying, obtains modified aging-resistant flame-proof system.
Preferably, the modified nano graphite microplate is prepared according to following technique：By weight by 45-65 parts of nanometer
Graphite microchip is added in corundum reactor, and being placed in after 5-15 parts of silane coupler of addition carries out microwave reaction in microwave equipment, its
The frequency of middle microwave reaction is 2-3GHz, and the time of microwave reaction is 5-10s, is reacted after terminating through extracting, being dried to obtain centre
Product；By in 25-30 parts of intermediate product and 5-10 parts of polyvinyl chloride addition reaction unit, ultrasonic 30-40min, solidification obtains institute
State modified nano graphite microplate.
Preferably, the lubricant is pentaerythritol stearate, N, and N- has supportted bis-stearamides, amide-type, silicone
In the mixture of one or more.
Preferably, the antioxidant is phenolic antioxidant and/or phosphite antioxidant.
Preferably, the toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer, its
Middle GMA (GMA) content is 12-15%.
One or more technical schemes that the present invention is provided, at least have the following technical effect that or advantage：（1）Major ingredient is anti-
Impact polyphenylene oxide composite material, by the control to the base material component in major ingredient, and is changed using graft to base material component
Property so that shock resistance engineering plastics of the invention have excellent high/low temperature notched impact properties, weatherability；（2）It is modified anti-
The anti-aging material such as the fire proofing such as Graphene, titanium dioxide, halloysite nanotubes and wollastonite raphioid fiber in aging flame-retardant system
Material, forms compound cooperative effect, the fire resistance and ageing resistace of significant increase engineering plastics；（3）Graphite nanosheets with
Shock resistance polyphenylene oxide composite material coordinates, and cooperates with its performance and promotes, and while improving processability, improves engineering plastics
Heat resistance and corrosion resistance, and assign engineering plastics certain antistatic behaviour.
Specific embodiment
Embodiment one
According to following weight portion dispensing：
73 parts of shock resistance polyphenylene oxide composite material
Modified 8 parts of aging-resistant flame-proof system
0.3 part of modified nano graphite microplate
1 part of antioxidant
1 part of toughener
0.2 part of lubricant.
Wherein described shock resistance polyphenylene oxide composite material include base material and graft, wherein, the base material be polyphenylene oxide and
Polystyrene resin blend, the graft is the mixture of maleic anhydride and citric acid.The shock resistance polyphenylene oxide is combined
Material is obtained using following technique：
The base material and the graft are granulated by melting extrusion and obtains shock resistance polyphenylene oxide composite material, the base material and connect
The weight ratio of branch thing is 60：5, base material and graft melting extrusion treatment condition be：Temperature is 220 DEG C, and vacuum is 5Pa,
Extruder revolution is 450 r/min, that is, shock resistance polyphenylene oxide composite material is obtained.Polyphenylene oxide and polystyrene tree in the base material
The mass ratio of fat is 10：3, the mass ratio of maleic anhydride and citric acid is 1 in the graft：1.
The modified aging-resistant flame-proof system is prepared from by the following method：
1 part of nano kaoline is taken by mass fraction, 2 parts of mass fractions are 25% potassium bicarbonate aqueous solution, 1.2 parts of characterization parameters
A diameter of 50-100nm, length are 5-10 μm of halloysite nanotubes, 1.5 parts of Graphenes, 0.5 part of titanium dioxide, 0.5 part of lauryl amine
APEO, 1 part of draw ratio is 10:1 wollastonite raphioid fiber, is well mixed, and is stirred in 170 DEG C of superheated steam reactors
Mix, decatize reaction 35min, in 450 DEG C of vacuum microwaves radiation 3h, be then dipped in the sulfamic acid that 90 parts of mass fractions are 35% molten
The moisture absorption of liquid vacuum is processed, and 75 DEG C of ultrasonic wave dispersion 1-2.5h are heated to after inhaling thoroughly, is stirred for disperseing 3-5h, takes suspension；
By mass fraction by 3 parts of suspension microwave plasma etching processing 25min of above-mentioned acquisition, mass fraction is contained with 50 parts
The deionized water of 3% PTPP dispersion liquid ultrasonication 15min at 65-75 DEG C, takes upper strata suspension through 100 mesh mistakes
Filter, distilled water washes clean, vacuum drying obtains modified aging-resistant flame-proof system.
The modified nano graphite microplate is prepared according to following technique：45 parts of graphite nanosheets are added by weight
In entering corundum reactor, to add be placed in after 5 parts of silane couplers carries out microwave reaction in microwave equipment, wherein microwave reaction
Frequency is 2GHz, and the time of microwave reaction is 5s, is reacted after terminating through extracting, being dried to obtain intermediate product；To be produced in the middle of 25 parts
Thing and 5 parts of polyvinyl chloride are added in reaction unit, and ultrasonic 30min, solidification obtains the modified nano graphite microplate.
The lubricant is pentaerythritol stearate.
The antioxidant is phenolic antioxidant.
The toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer, wherein methyl-prop
Olefin(e) acid ethylene oxidic ester (GMA) content is 12%.
Above-mentioned all dispensings are stirred 80 minutes at 115 DEG C, mixing speed is 300r/min, be well mixed it；
Fusion plastification granulation in double screw extruder, the double screw extruder includes six humidity provinces sequentially arranged, area's temperature
175 DEG C, two 195 DEG C of area's temperature, three 205 DEG C of area's temperature, four 225 DEG C of area's temperature, five 245 DEG C of area's temperature, six 235 DEG C of area's temperature,
235 DEG C of head temperature；Screw speed 150r/min, is obtained shock resistance engineering plastics.
Embodiment two
According to following weight portion dispensing：
78 parts of shock resistance polyphenylene oxide composite material
Modified 9 parts of aging-resistant flame-proof system
0.4 part of modified nano graphite microplate
1.2 parts of antioxidant
1.5 parts of toughener
0.3 part of lubricant.
Wherein described shock resistance polyphenylene oxide composite material include base material and graft, wherein, the base material be polyphenylene oxide and
Polystyrene resin blend, the graft is the mixture of maleic anhydride and citric acid.The shock resistance polyphenylene oxide is combined
Material is obtained using following technique：
The base material and the graft are granulated by melting extrusion and obtains shock resistance polyphenylene oxide composite material, the base material and connect
The weight ratio of branch thing is 70：9, base material and graft melting extrusion treatment condition be：Temperature is 225 DEG C, and vacuum is 10Pa,
Extruder revolution is 500 r/min, that is, shock resistance polyphenylene oxide composite material is obtained.Polyphenylene oxide and polystyrene tree in the base material
The mass ratio of fat is 11：4, the mass ratio of maleic anhydride and citric acid is 1 in the graft：2.
The modified aging-resistant flame-proof system is prepared from by the following method：
2 parts of nano kaolines are taken by mass fraction, 3 parts of mass fractions are 30% potassium bicarbonate aqueous solution, 1.3 parts of characterization parameters
A diameter of 50-100nm, length are 5-10 μm of halloysite nanotubes, 1.6 parts of Graphenes, 0.7 part of titanium dioxide, 0.6 part of lauryl amine
APEO, 1.1 parts of draw ratios are 10-13:1 wollastonite raphioid fiber, is well mixed, in 180 DEG C of superheated steam reactions
Stirring in kettle, decatize reaction 40min in 460 DEG C of vacuum microwaves radiation 4h, is then dipped in the amino that 98 parts of mass fractions are 35%
The moisture absorption of sulfonic acid solutions vacuum is processed, and 78 DEG C of ultrasonic wave dispersion 2h are heated to after inhaling thoroughly, is stirred for disperseing 4h, takes suspension；
By mass fraction by 4 parts of suspension microwave plasma etching processing 27min of above-mentioned acquisition, mass fraction is contained with 60 parts
The deionized water of 4% PTPP dispersion liquid ultrasonication 18min at 70 DEG C, takes upper strata suspension and is filtered through 120 mesh,
Distilled water washes clean, vacuum drying obtains modified aging-resistant flame-proof system.
The modified nano graphite microplate is prepared according to following technique：55 parts of graphite nanosheets are added by weight
In entering corundum reactor, to add be placed in after 8 parts of silane couplers carries out microwave reaction in microwave equipment, wherein microwave reaction
Frequency is 3GHz, and the time of microwave reaction is 8s, is reacted after terminating through extracting, being dried to obtain intermediate product；To be produced in the middle of 28 parts
Thing and 7 parts of polyvinyl chloride are added in reaction unit, and ultrasonic 30-40min, solidification obtains the modified nano graphite microplate.
The lubricant is N, and N- has supportted bis-stearamides.
The antioxidant is phenolic antioxidant and/or phosphite antioxidant.
The toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer, wherein methyl-prop
Olefin(e) acid ethylene oxidic ester (GMA) content is 13%.
Above-mentioned all dispensings are stirred 80-100 minutes at 120 DEG C, mixing speed is 400r/min, make its mixing equal
It is even；The fusion plastification granulation in double screw extruder, the double screw extruder includes six humidity provinces sequentially arranged, an area
180 DEG C of temperature, two 200 DEG C of area's temperature, three 210 DEG C of area's temperature, four 230 DEG C of area's temperature, five 250 DEG C of area's temperature, six area's temperature 240
DEG C, 240 DEG C of head temperature；Screw speed 170r/min, is obtained shock resistance engineering plastics.
Embodiment three
According to following weight portion dispensing：
85 parts of shock resistance polyphenylene oxide composite material
Modified 10 parts of aging-resistant flame-proof system
0.5 part of modified nano graphite microplate
1.5 parts of antioxidant
2 parts of toughener
0.4 part of lubricant.
Wherein described shock resistance polyphenylene oxide composite material include base material and graft, wherein, the base material be polyphenylene oxide and
Polystyrene resin blend, the graft is the mixture of maleic anhydride and citric acid.The shock resistance polyphenylene oxide is combined
Material is obtained using following technique：
The base material and the graft are granulated by melting extrusion and obtains shock resistance polyphenylene oxide composite material, the base material and connect
The weight ratio of branch thing is 75：12, base material and graft melting extrusion treatment condition be：Temperature is 230 DEG C, and vacuum is
15Pa, extruder revolution is 600 r/min, that is, shock resistance polyphenylene oxide composite material is obtained.Polyphenylene oxide and polyphenyl in the base material
The mass ratio of vinyl is 15：5, the mass ratio of maleic anhydride and citric acid is 1 in the graft：3.
The modified aging-resistant flame-proof system is prepared from by the following method：
3 parts of nano kaolines are taken by mass fraction, 4 parts of mass fractions are 35% potassium bicarbonate aqueous solution, 1.5 parts of characterization parameters
A diameter of 50-100nm, length are 5-10 μm of halloysite nanotubes, 1.8 parts of Graphenes, 0.8 part of titanium dioxide, 0.7 part of lauryl amine
APEO, 1.2 parts of draw ratios are 13:1 wollastonite raphioid fiber, is well mixed, in 190 DEG C of superheated steam reactors
Stirring, decatize reaction 50min in 480 DEG C of vacuum microwaves radiation 5h, is then dipped in the amino sulphur that 110 parts of mass fractions are 35%
The moisture absorption of acid solution vacuum is processed, and 85 DEG C of ultrasonic wave dispersion 2.5h are heated to after inhaling thoroughly, is stirred for disperseing 5h, takes suspension；
By mass fraction by 5 parts of suspension microwave plasma etching processing 30min of above-mentioned acquisition, divided containing quality with 50-80 parts
The deionized water of several 5% PTPP dispersion liquids ultrasonication 30min at 75 DEG C, takes upper strata suspension through 150 mesh mistakes
Filter, distilled water washes clean, vacuum drying obtains modified aging-resistant flame-proof system.
The modified nano graphite microplate is prepared according to following technique：65 parts of graphite nanosheets are added by weight
In entering corundum reactor, to add be placed in after 15 parts of silane couplers carries out microwave reaction in microwave equipment, wherein microwave reaction
Frequency is 3GHz, and the time of microwave reaction is 10s, is reacted after terminating through extracting, being dried to obtain intermediate product；To be produced in the middle of 30 parts
Thing and 10 parts of polyvinyl chloride are added in reaction unit, and ultrasonic 40min, solidification obtains the modified nano graphite microplate.
The lubricant is the mixture that pentaerythritol stearate and N, N- have supportted bis-stearamides.
The antioxidant is phenolic antioxidant and phosphite antioxidant.
The toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer, wherein methyl-prop
Olefin(e) acid ethylene oxidic ester (GMA) content is 15%.
Above-mentioned all dispensings are stirred 100 minutes at 125 DEG C, mixing speed is 500r/min, be well mixed it；
Fusion plastification granulation in double screw extruder, the double screw extruder includes six humidity provinces sequentially arranged, area's temperature
185 DEG C, two 205 DEG C of area's temperature, three 215 DEG C of area's temperature, four 235 DEG C of area's temperature, five 255 DEG C of area's temperature, six 245 DEG C of area's temperature,
245 DEG C of head temperature；Screw speed 180r/min, is obtained shock resistance engineering plastics.
After tested, the shock resistance engineering plastics in each example of the invention are molded through tabletting machine, and performance indications are as follows：
| Technical indicator | Testing standard | The test result of embodiment one | The test result of embodiment two | The test result of embodiment three |
| Bending modulus（MPa） | ISO 178 | 1045.3 | 1172.4 | 1081.7 |
| Tensile strength（MPa） | ISO 527 | 60.2 | 64.1 | 65.6 |
| ISO 179 | 27.3 | 26.9 | 28.5 | |
| Melt index（g/10min） | ISO 1133 | 75 | 71 | 76 |
| Surface resistivity（Ω） | GB/T1410-2006 | |||
| Vicat softening point（℃） | ISO 306 | 105 | 107 | 102 |
As seen from the above table, the product mechanical property that the present invention is obtained is good, and anti-flammability is superior, and antistatic property is strong.
Embodiment described above only expresses the specific embodiment of the application, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the application protection domain can not be interpreted as.It should be pointed out that the invention is not restricted to embodiment here,
Those skilled in the art's announcement of the invention, does not depart from improvement that scope made and modification all should be in this hair
In bright protection domain.
Claims (8)
1. a kind of preparation method of shock resistance engineering plastics, comprises the following steps：
（1）According to following weight portion dispensing：
73-85 parts of shock resistance polyphenylene oxide composite material
Modified 8-10 parts of aging-resistant flame-proof system
0.3-0.5 parts of modified nano graphite microplate
Antioxidant 1-1.5 parts
Toughener 1-2 parts
Lubricant 0.2-0.4 parts；
Wherein described shock resistance polyphenylene oxide composite material includes base material and graft, wherein, the base material is polyphenylene oxide and polyphenyl
Vinyl mixture, the graft is the mixture of maleic anhydride and citric acid；
At least include kaolin, halloysite nanotubes, Graphene, titanium dioxide and silicon in wherein described modified aging-resistant flame-proof system
Lime stone raphioid fiber；
（2）Above-mentioned all dispensings are stirred 80-100 minutes at 115-125 DEG C, mixing speed is 300-500r/min, makes it
It is well mixed；
The fusion plastification granulation in double screw extruder, the double screw extruder includes six humidity provinces sequentially arranged, one
175-185 DEG C of area's temperature, two 195-205 DEG C of area's temperature, three 205-215 DEG C of area's temperature, four 225-235 DEG C of area's temperature, five area's temperature
245-255 DEG C of degree, six 235-245 DEG C of area's temperature, 235-245 DEG C of head temperature；Screw speed 150-180r/min, is obtained anti-impact
Hit engineering plastics.
2. the method for claim 1, it is characterised in that the shock resistance polyphenylene oxide composite material uses following technique system
：
The base material and the graft are granulated by melting extrusion and obtains shock resistance polyphenylene oxide composite material, the base material and connect
Branch thing weight ratio be（60-75）：（5-12）, base material and graft melting extrusion treatment condition be：Temperature is 220-230
DEG C, vacuum is 5-15Pa, and extruder revolution is 450-600 r/min, that is, shock resistance polyphenylene oxide composite material is obtained.
3. method as claimed in claim 2, it is characterised in that the mass ratio of polyphenylene oxide and polystyrene resin in the base material
For（10-15）：（3-5）, the mass ratio of maleic anhydride and citric acid is 1 in the graft：（1-3）.
4. method as claimed in claim 3, it is characterised in that the modified aging-resistant flame-proof system prepare by the following method and
Into：
1-3 parts of nano kaoline is taken by mass fraction, 2-4 parts of mass fraction is the potassium bicarbonate aqueous solution of 25-35%, 1.2-
1.5 parts of a diameter of 50-100nm of characterization parameter, halloysite nanotubes that length is 5-10 μm, 1.5-1.8 parts of Graphene, 0.5-
0.8 part of titanium dioxide, 0.5-0.7 parts of lauryl amine APEO, 1-1.2 parts of draw ratio is 10-13:1 wollastonite raphioid fiber,
It is well mixed, stirred in 170-190 DEG C of superheated steam reactor, decatize reaction 35-50min, in 450-480 DEG C of vacuum microwave
Radiation 3-5h, is then dipped in the sulfamic acid solution vacuum moisture absorption treatment that 90-110 part mass fraction is 35%, is heated after inhaling thoroughly
To 75-85 DEG C of ultrasonic wave dispersion 1-2.5h, it is stirred for disperseing 3-5h, takes suspension；
By mass fraction by 3-5 parts of suspension microwave plasma etching processing 25-30min of above-mentioned acquisition, matter is contained with 50-80 parts
The deionized water of amount fraction 3-5% PTPP dispersion liquids ultrasonication 15-30min at 65-75 DEG C, takes upper strata suspension
Thing is filtered through 100-150 mesh, distilled water washes clean, vacuum drying, obtains modified aging-resistant flame-proof system.
5. method as claimed in claim 4, it is characterised in that the modified nano graphite microplate is according to following technique system
It is standby：By weight by 45-65 parts of graphite nanosheets addition corundum reactor, it is placed in after adding 5-15 parts of silane coupler
Microwave reaction is carried out in microwave equipment, the wherein frequency of microwave reaction is 2-3GHz, and the time of microwave reaction is 5-10s, reaction
Through extracting, being dried to obtain intermediate product after end；25-30 parts of intermediate product and 5-10 parts of polyvinyl chloride are added into reaction unit
In, ultrasonic 30-40min, solidification obtains the modified nano graphite microplate.
6. method as claimed in claim 5, it is characterised in that the lubricant is pentaerythritol stearate, N, N- has been supportted
The mixture of one or more in bis-stearamides, amide-type, silicone.
7. method as claimed in claim 6, it is characterised in that the antioxidant is that phenolic antioxidant and/or phosphite ester are anti-
Oxygen agent.
8. method as claimed in claim 7, it is characterised in that the toughener is ethylene-methyl acrylate-methacrylic acid
Ethylene oxidic ester terpolymer, wherein GMA (GMA) content is 12-15%.
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