CN103333490A - Low gloss, high impact and high temperature resistance nylon alloy material and preparation method thereof - Google Patents
Low gloss, high impact and high temperature resistance nylon alloy material and preparation method thereof Download PDFInfo
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- CN103333490A CN103333490A CN2013102333090A CN201310233309A CN103333490A CN 103333490 A CN103333490 A CN 103333490A CN 2013102333090 A CN2013102333090 A CN 2013102333090A CN 201310233309 A CN201310233309 A CN 201310233309A CN 103333490 A CN103333490 A CN 103333490A
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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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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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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Abstract
The invention relates to a low gloss, high impact and high temperature resistance nylon alloy material. The nylon alloy material comprises nylon, polyphenyl ether, compatilizer-1, compatilizer-2, a flexibilizer and an antioxidant. The low gloss, high impact and high temperature resistance nylon alloy material is prepared by introducing the polyphenyl ether, the compatilizer and the flexibilizer into the nylon, the compatilizer-1 puts up a bridge between the nylon and the polyphenyl ether, the flexibilizer is dispersed in the nylon uniformly due to the compatilizer-2, two-step of online reaction is adopted and the material is added step by step. The preparation method of the nylon alloy reflects the importance of online reaction, distribution reaction and step-by-step charging on preparation of the alloy material with excellent properties, and the obtained alloy material maintains better mechanical property, has the advantages of low gloss, high impact, high heat distortion temperature, and the like, and can be widely used in fields such as automotive trim materials, electric tools, electronic products and the like.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of low gloss, HI high impact, high temperature resistant nylon alloy material and preparation method thereof.
Background technology
The low gloss thermoplastic material is widely used in trolley part, electron device and decorated articles field, especially in automotive industry, development along with automobile industry, people have proposed requirements such as higher light-duty, energy-conservation, attractive in appearance, safety, environmental protection to automobile, these in requiring very important one be exactly safe and attractive in appearance.The low gloss thermoplastic material product has not only given product more beautiful impression, and has reduced the cost that sprays paint (major part require the product needed of high gloss spray paint processing), has improved security, and particularly this kind material is in the indoor application of car steering.In automobile industry, the glossiness on inside gadget surface preferably is no more than 9%, design by the die surface dermatoglyph, can make the surface gloss of product be reduced to 5-6%, if the glossiness of cab inside gadget is higher, just have stronger light reflection, cause eye strain easily, thereby influence behavior and the comfortableness of navigating mate.For a long time, spray sub-gloss varnish by increasing suitable surface texture structure or product surface at product surface, product also can obtain lower glossiness, but the production technique of this series products is comparatively complicated, cost is higher, and can not satisfy the requirement of use sometimes, along with the prolongation of duration of service, the abrasion of superficial makings and the variation of paint may need to handle again just and can use.Therefore the modification to material itself is optimal, thus after follow-up processing, comprises injection moulding, extrudes, technology such as blowing, and goods have the surface of low gloss immediately, thereby have avoided the operation of following process and secondary processing.
The low gloss thermoplastic material must have good mechanical property, and polycarbonate has higher thermotolerance, impact property and dimensional stability, yet its glossiness is very high.Practice with polycarbonate and polyolefine, ethylene-propylene-diene terpolymer has been discussed among US Patent No. P4550138, the USP4638033, yet the effect that this trial obtains is limited, can't satisfy the downstream requirement of client.Polypropylene material is another selection, by add mineral filler and rubber constituent in polypropylene, can reduce the glossiness of material, but increase the density that mineral filler has increased material, has reduced the toughness of material simultaneously, has limited its use.Chinese patent CN 102558734A reduces the glossiness of material by adding the powdered rubber composition, obtained certain effect, but this method has been sacrificed rigidity and the thermotolerance of material.
Nylon has advantages such as excellent wear-resisting, anti-solvent and use temperature are wide, is widely used in fields such as automobile, electronics.With ABS resin and nylon blending,, resistance to chemical corrosion higher in conjunction with the alloy shock strength that the advantage of two kinds of polymkeric substance is prepared has better, again than nylon excellent size stability more, special surperficial soft mute light effect can be widely used in making fields such as automotive upholstery, scavenge trunk, instrument skeleton, switch, bearing circle shell, air-conditioning air outlet grate, vibroshock, garden tool set and equipment.Patent CN 102051042A has reported a kind of nylon/ABS alloy of low gloss, it has reduced its glossiness by the method for adding mineral filler, but nylon/ABS alloy only limits to the alloy of nylon 6 and ABS, the thermotolerance of prepared alloy material has much room for improvement, and its thermal change type temperature only is the 90-100 degree.Use nylon 66 can improve its temperature tolerance, yet nylon 66 is difficult to be complementary with the processing temperature of ABS under 230 degree in the processing temperature under 280 degree, thereby limited the preparation of alloy at process aspect, obviously, ABS is not the suitable material to nylon 66 modifications.
The polyphenylene oxide chemical name is poly-2,6-dimethyl-1, the 4-phenylate, it is the resistant to elevated temperatures thermoplastic engineering plastic of a class, have good mechanical property and thermal characteristics, excellent in water resistance, resistance to acids and bases and photostabilization, outstanding electrical insulating property and dimensional stability, good flame retardancy is widely used in automobile, electronic apparatus and water treatment field; Simultaneously, polyphenylene oxide is as a kind of amorphous macromolecule material, has processing temperature widely, can extrude with injection moulding and process in the scopes of 310 degree at 240 degree, carry out modification with it and with nylon, polyphenylene oxide-the nylon alloy of preparation has both advantages concurrently, can obtain low gloss, high-impact, resistant to elevated temperatures novel alloy material, widens the range of application of material.Patent CN 101497739A discloses a kind of preparation method of polyphenylene oxide nylon 6 alloy, uses styrene-maleic anhydride copolymer as compatilizer, and the notched Izod impact strength of prepared alloy material has only 24.5-33.5J/m
2, also lower than the notched Izod impact strength of pure nylon 6, do not possess use value.Patent CN101230191A discloses a kind of polyphenylene oxide nylon 6 alloy, and it uses homemade composite elastic body as compatilizer, and the alloy low temperature impact strength of preparation reaches 39KJ/m
2But this alloy only limits to nylon 6, and temperature resistant grade is lower.Patent CN101225214A discloses the preparation method of another kind of polyphenylene oxide nylon 6 alloy, and the notched Izod impact strength of prepared alloy material is up to 1065J/m
2But its tensile strength is down to 40MPa, and flexural strength is down to 55MPa, and alloy only limits to nylon 6, the modification of nylon 66 is not studied, and the resistance toheat of prepared material is also not mentioned, uses to have certain limitation.Patent CN102585478A discloses a kind of polyphenylene oxide nylon 66 alloy materials, the compatilizer maleic anhydride graft polyphenylene oxide that it is used, the notched Izod impact strength of prepared alloy material can reach 80KJ/m2, but its tensile strength is down to 30MPa, flexural strength is down to 38MPa, heat-drawn wire has only 153 ℃, and mechanical property has been sacrificed greatly, and this has limited the use of material.Patent CN102020785A discloses a kind of polyphenylene oxide nylon 66 alloys, and its material that uses boric acid and contain hydroxyl and hydroxy-acid group simultaneously is as compatilizer, and the alloy unnotched impact strength of preparation is only up to 48KJ/m
2, the announcement that do not appear in the newspapers such as notched Izod impact strength, heat-drawn wire still can't obtain the material of each balancing performance.
Nylon itself is a kind of material with certain glossiness, and the glossiness of pure nylon 66 can not be used as the product of low-luster between 70～80%, and its thermal change type temperature is between 60～70 degree, and notched Izod impact strength has only 6～7KJ/M
2Between, therefore, the resistance toheat of this material is not high, and performance deficiency has caused the limited of its application.The above-mentioned polyphenylene oxide nylon alloy material of open report, its performance always has short slab, has limited its use.Patent is only limited to the alloy of polyphenylene oxide and nylon 6, prepared alloy material temperature tolerance is lower, the alloy material shock strength is very high, but tensile strength of material and flexural strength are made bigger sacrifice, and the material of reporting reaches 20KJ/m in notched Izod impact strength
2Situation under, its heat-drawn wire never surpasses 180 ℃, has limited alloy material in the use that has under the high temperature resistant condition.Second point, among the preparation method of the polyphenylene oxide nylon alloy material of above-mentioned report, the basic preparation compatilizer earlier that adopts adopts one pot of mixed mode again, all formula materials is all joined twin screw extruder simultaneously extrude, thereby make alloy material.Because polyphenylene oxide and nylon are complete two kinds of systems inequality, need the online reaction of compatilizer, form polyphenylene oxide-compatilizer-nylon intermediates, just can make the alloy of excellent performance, so one pot of mixed mode, all raw materials join in the forcing machine simultaneously, online reaction will occur inhomogeneous, polyphenylene oxide-compatilizer-nylon intermediates forms insufficient, and short slab will appear in the alloy material performance of preparation.
Summary of the invention
It is comparatively balanced to the purpose of this invention is to provide a kind of various aspects of performance, has than low gloss, than high impact property and the better nylon alloy material of resistance toheat.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of low gloss, HI high impact, high temperature resistant nylon alloy material, and by mass percentage, its formula constituent is:
The summation of above-mentioned all components is 100%.
The relative viscosity of described nylon is 2.0～3.0; Nylon is the composition of nylon 66 or nylon 66 and nylon 6, and wherein, the content of nylon 6 is 1%-20% in the composition.
The relative viscosity of described polyphenylene oxide is 0.3～0.5; Compatilizer-the 1st, percentage of grafting are the maleic anhydride graft polyphenylene oxide of 0.1%-2%; Or purity is higher than 99% citric acid.
Described compatilizer-the 2nd, percentage of grafting are the maleic anhydride graft SEBS(styrene-ethylene-butylene-styrene multipolymer of 0.1%-2%); Or percentage of grafting is the maleic anhydride graft POE(ethylene-octene copolymer of 0.1%-2%).
Described toughner is POE, perhaps is SEBS(styrene-ethylene-butylene-styrene multipolymer), perhaps be polyether-amide block copolymers.
A kind of low gloss, HI high impact, resistant to elevated temperatures nylon alloy material preparation method have following steps:
The first step: the 10-20% of polyphenylene oxide, compatilizer-1, nylon total amount is carried out premix by formula rate in the high speed mixing tank, mixing time was not less than 5 minutes, got Preblend-1;
Second step: 35-60%, compatilizer-2, the toughner of nylon total amount are carried out premix by formula rate in the high speed mixing tank, mixing time was not less than 5 minutes, got Preblend-2;
The 3rd step: Preblend-1 is added in the main feeder of twin screw extruder, Preblend-2 adds in the side feeder-2, the nylon of remaining 30-50%, join in the side feeder-1, above-mentioned material the screw rod shearing of twin screw extruder and mixing down, material melting, online reaction, compound, again through extrude, tie rod, cooling, pelletizing get nylon alloy.
Further, described twin screw extruder screw slenderness ratio is 48, and twin screw extruder has at least 2 side feeders, and wherein the length of the main feeder of side feeder-1 distance is 18D～24D, and the length of the main feeder of side feeder-2 distance is 30D～36D; Forcing machine front end temperature is set at 280 ℃, and the stage casing temperature is set at 275 ℃, and the head extrusion temperature is 285 ℃, and rotating speed is 290-310rpm; Twin screw extruder is equipped with vacuum-pumping equipment, and vacuum tightness is 80～100mbar during its work.
The prepared nylon alloy product of the present invention is extruded and is obtained through online reaction, at first, polyphenylene oxide and compatilizer-1 and small part nylon is fusing at high temperature and generation chemical reaction in screw rod, generate polyphenylene oxide-nylon masterbatch, it is more abundant that the length of this part screw rod needs just can react about 18D～24D, and too short then do not have the enough fusing reaction times; And then, part nylon, compatilizer-2 and toughner join the screw rod from side feeder-1, through melting, reaction, generate the tenacity increased nylon masterbatch, with the polyphenylene oxide that generates previously-nylon masterbatch blend, reaction generates nylon-polyphenylene oxide alloy body, the length of this part screw rod needs also could guarantee about 12D～18D that alloy fully reacts, then, remaining nylon enters in the screw rod by side feeder-3, with the abundant blend of the alloy body that generates previously, form final nylon alloy, the length of this part screw rod also needs 12D～18D could guarantee the uniformity of alloy product each several part.
Beneficial effect: in nylon, introduce polyphenylene oxide among the present invention, compatilizer, toughner, prepared low-luster, HI high impact, resistant to elevated temperatures nylon alloy, compatilizer-1 is set up bridge between nylon and polyphenylene oxide, compatilizer-2 makes toughner be dispersed in the nylon, adopt two online reactions of step, reinforced step by step, among the present invention nylon alloy preparation method's design map online reaction, reaction distributes, the importance of reinforced alloy material for the processability excellence step by step, the gained alloy material has kept mechanical property preferably, has low gloss, HI high impact, thermal change type temperature advantages of higher can be widely used in automotive interior material, power tool, fields such as electronic product.
Embodiment
The invention will be further described below in conjunction with specific embodiment, and listed embodiment only gives further instruction to the present invention, and is not thereby limiting the invention.
Raw material used in the present invention is as follows:
Nylon 66: EPR27, relative viscosity 2.67, the refreshing horse in Henan produces; Nylon 6: YH700, relative viscosity 2.75, Yueyang Ba Ling petrochemical iy produced; Polyphenylene oxide resin: LXR045, relative viscosity 0.45, blue star Chemical Manufacture; Maleic anhydride graft polyphenylene oxide (PPE-g-MAH): 450C, percentage of grafting 1%, the photoproduction of Ningbo energy is produced; Citric acid: Citric, analytical pure, 99%, traditional Chinese medicines reagent is bought; Maleic anhydride graft SEBS(SEBS-g-MAH): FG1901, percentage of grafting 1.7%, U.S. section rises company and produces.
Maleic anhydride graft POE(POE-g-MAH): 010A, percentage of grafting 1.2%, sincere production is closed in Guangzhou; SEBS:G1651H, U.S. section rise company and produce; POE:Engage 8150, LG-DOW production; Polyether-amide block copolymers: Pebax 7033, the Acker agate is produced; Oxidation inhibitor: 168,1098, Ciba company produces.
Be used for the plant and instrument of performance of the prepared alloy material of test and testing standard and be disclosing known, be summarized as follows:
The tensile strength of tensile property test is carried out according to standard ISO 527, and tensile bars is the thick molding Elongation test of 4mm batten, and draw speed is 50mm/min, and tensile strength is come record with MPa.
Flexural strength and the modulus in flexure of bending property test are carried out according to standard ISO 178, and the batten of test is the thick molding crooked test of 4mm batten, and trial speed is 2mm/min, and flexural strength is come record with MPa, and modulus in flexure is also come record with MPa.
Notched Izod impact strength is used for the relatively shock resistance of plastic material, carries out according to standard ISO 180, uses the thick molding notch shock of 4mm batten to test, and determines that according to ISO 180/1A outcome record is KJ/m
2
The heat-drawn wire of resistance toheat test material is carried out according to standard ISO 75 standards, and the batten of test is the thick thermal distortion test bars of 4mm, and test pressure is 0.45MPa, and experimental result unit is ℃.
At smooth surface, according to ASTM D2457, under 20 ° and 60 °, use the Micro-TRI-Gloss tester to measure, specimen is the plectane of diameter 8cm, thickness 3mm, unit is with percentage registration.
The length-to-diameter ratio of the twin screw extruder screw rod that prepared alloy material needs among the present invention is 48, and a main feeder and two side feeders are arranged, and wherein the distance of the main feeder of side feeder-1 distance is 20D, and the distance of the main feeder of side feeder-2 distance is 34D.Temperature is set to 1 district, 280 degree, 2 districts, 280 degree, 3 districts, 280 degree, 4 districts, 280 degree, 5 districts, 280 degree, 6 districts, 275 degree, 7 districts, 275 degree, 8 districts, 275 degree, 9 districts, 275 degree, 10 districts, 275 degree, 11 districts, 285 degree, engine speed is 300RPM, be furnished with 2 natural venting ports and 1 vaccum exhaust outlet, vacuum tightness is 90mBar during work.
Above-mentioned test bars and model are all taken charge of injection moulding machine at me and are prepared, and injection moulding machine model sea day SA900 type, injection temperature are 280 degree.
Comparative Examples-1
With nylon 66(trade mark EPR27) as a comparison case-1, injection moulding stretching, bending, electuary, thermal distortion batten and glossiness test sample plate are tested on injection moulding machine.
Comparative Examples-2
With nylon 66(trade mark EPR27) 80 parts of ratios, nylon 6(YH700) 20 parts of ratios, in high speed mixer, do and mix after 10 minutes, injection moulding stretching, bending, electuary, thermal distortion batten and glossiness test sample plate are tested on injection moulding machine.
Embodiment-1
With 10 parts of 8 parts of 29.8 parts of polyphenylene oxide LXR045, PPE-g-MAH 450C, nylon EPR27,168 0.1 parts and 1,098 0.1 parts in oxidation inhibitor, in high speed mixer, do to mix joining in the twin screw extruder master feeder after 10 minutes; 5 parts of 20 parts of nylon EPR27, SEBS-g-MAH FG1901, SEBS G1651H7 part after dried mixed 10 minutes, are joined in the twin screw extruder side feeder-1 in high speed mixer; Remaining nylon EPR27 is joined in the side feeder-2 for 20 parts.Start the twin screw main frame, open main feeder, side feeder-1, side feeder-2 successively, adjust rotating speed to 300RPM, rate of feeding is extruded pelletizing after the fusion of above-mentioned component process, the online reaction and is made nylon alloy 1# sample to 25KG/H.Alloy 1# sample injection moulding stretching, bending, electuary, thermal distortion batten and glossiness test sample plate on injection moulding machine of preparation are tested, and outcome record is in table 1.
Embodiment-2
5 parts of raw material SEBS-g-MAH FG1901, SEBS G1651H among the embodiment-1 are replaced by 5 parts of POE-g-MAH 010A for 7 parts, 8,150 7 parts of Engage POE, all the other are constant, make nylon alloy 2# sample, and preparation test sample plate and batten are tested according to respective standard, and outcome record is in table 1.
Embodiment-3
7 parts of 5 parts of raw material SEBS-g-MAH FG1901, SEBS G1651H among the embodiment-1 are replaced by 5 parts of POE-g-MAH 010A, 7,033 7 parts of Pebax, all the other are constant, make nylon alloy 3# sample, and preparation test sample plate and batten are tested according to respective standard, and outcome record is in table 1.
Embodiment-4
With 32.8 parts of polyphenylene oxide LXR045,0.5 part of citric acid, 10 parts of nylon EPR27,1680.1 parts and 1,098 0.1 parts in oxidation inhibitor, in high speed mixer, do to mix joining in the twin screw extruder master feeder after 10 minutes; 5 parts of 24.5 parts of nylon EPR27, SEBS-g-MAH FG1901, SEBS G1651H after dried mixed 10 minutes, are joined in the twin screw extruder side feeder-1 in high speed mixer for 7 parts; Remaining nylon EPR27 is joined in the side feeder-2 for 20 parts.Start the twin screw main frame, open main feeder, side feeder-1, side feeder-2 successively, adjust rotating speed to 300RPM, increase feed rate to 25KG/H, extrude pelletizing after the fusion of above-mentioned component process, the online reaction and make nylon alloy 4# sample.Alloy 4# sample injection moulding stretching, bending, electuary, thermal distortion batten and glossiness test sample plate on injection moulding machine of preparation are tested, and outcome record is in table 1.
Embodiment-5
5 parts of raw material SEBS-g-MAH FG1901, SEBS G1651H among the embodiment-4 are replaced by 5 parts of POE-g-MAH 010A for 7 parts, 8,150 7 parts of Engage POE, all the other are constant, make nylon alloy 5# sample, and preparation test sample plate and batten are tested according to respective standard, and outcome record is in table 1.
Embodiment-6
7 parts of 5 parts of raw material SEBS-g-MAH FG1901, SEBS G1651H among the embodiment-4 are replaced by 5 parts of POE-g-MAH 010A, 7,033 7 parts of Pebax, all the other are constant, make nylon alloy 6# sample, and preparation test sample plate and batten are tested according to respective standard, and outcome record is in table 1.
Embodiment-7
20 parts of raw material EPR27 among the embodiment-1 are replaced by 14 parts of EPR27,6 parts of YH700, all the other are constant, make nylon alloy 7# sample, and preparation test sample plate and batten test according to respective standard, and outcome record is in table 1.
Embodiment-8
20 parts of raw material EPR27 among the embodiment-4 are replaced by 14 parts of EPR27,6 parts of YH700, all the other are constant, make nylon alloy 8# sample, and preparation test sample plate and batten test according to respective standard, and outcome record is in table 1.
Embodiment-9
Raw material EPR27 among the embodiment-6 is replaced by EP14 part for 20 parts, 700 6 parts of YHR27, all the other are constant, make nylon alloy 9# sample, and preparation test sample plate and batten test according to respective standard, and outcome record is in table 1.
Material sample and test sample plate that each embodiment prepares are tested according to respective standard, and test result is as shown in table 1 below:
Table 1
As can be seen from the above-described embodiment, the nylon alloy material for preparing among the present invention is compared nylon raw material, though sacrifice to some extent on tensile strength, flexural strength and three performance index of modulus in flexure, (maximum is 35.6KJ/m significantly to have improved the shock strength of alloy material
2) and heat-drawn wire (maximum is 197 ℃), greatly reduce the glossiness of material simultaneously.Use different compatilizers among the present invention, all can make well behaved alloy material.In the alloy material of preparation, its glossiness (20 degree) all is down to 1.9 less than 10%(embodiment-9 glossiness is minimum), basically the glossiness (20 degree, 7%) with polypropylene filling material quite, goes for automotive upholstery fully to the requirement of material glossiness; In addition, the higher heat-drawn wire of alloy material also satisfies the downstream client for the requirement of high-temperature resistant material.Generally speaking, alloy material has kept preferably mechanical property (tensile strength about 50MPa, flexural strength is more than 70MPa), give prominence to low gloss, high thermal resistance and impact property, will obtain wider application in the higher field that segments market of ask for something.
Claims (5)
1. a low gloss, HI high impact, high temperature resistant nylon alloy material, it is characterized in that: by mass percentage, its formula constituent is:
The summation of above-mentioned all components is 100%;
Described compatilizer-the 1st, percentage of grafting are the maleic anhydride graft polyphenylene oxide of 0.1%-2%; Or purity is higher than 99% citric acid;
Described compatilizer-the 2nd, percentage of grafting are the maleic anhydride graft SEBS of 0.1%-2%; Or percentage of grafting is the maleic anhydride graft POE of 0.1%-2%; Toughner is POE, perhaps is SEBS, perhaps is polyether-amide block copolymers.
2. low gloss as claimed in claim 1, HI high impact, high temperature resistant nylon alloy material, it is characterized in that: the relative viscosity of described nylon is 2.0～3.0; Nylon is the composition of nylon 66 or nylon 66 and nylon 6, and wherein, the content of nylon 6 is 1%-20% in the composition.
3. low gloss as claimed in claim 1, HI high impact, high temperature resistant nylon alloy material, it is characterized in that: the relative viscosity of described polyphenylene oxide is 0.3～0.5.
4. a low gloss, HI high impact, resistant to elevated temperatures nylon alloy material preparation method is characterized in that: have following steps:
The first step: the 10-20% of polyphenylene oxide, compatilizer-1, nylon total amount is carried out premix by formula rate in the high speed mixing tank, mixing time was not less than 5 minutes, got Preblend-1;
Second step: 35-60%, compatilizer-2, the toughner of nylon total amount are carried out premix by formula rate in the high speed mixing tank, mixing time was not less than 5 minutes, got Preblend-2;
The 3rd step: Preblend-1 is added in the main feeder of twin screw extruder, Preblend-2 adds in the side feeder-2, remaining nylon joins in the side feeder-1, above-mentioned material the screw rod shearing of twin screw extruder and mixing down, material melting, online reaction, compound, again through extrude, tie rod, cooling, pelletizing get nylon alloy.
5. the preparation method of low gloss as claimed in claim 4, HI high impact, high temperature resistant nylon alloy material, it is characterized in that: described twin screw extruder screw slenderness ratio is 48, twin screw extruder has at least 2 side feeders, wherein the length of the main feeder of side feeder-1 distance is 18D～24D, and the length of the main feeder of side feeder-2 distance is 30D～36D; Forcing machine front end temperature is set at 280 ℃, and the stage casing temperature is set at 275 ℃, and the head extrusion temperature is 285 ℃, and rotating speed is 290-310rpm; Twin screw extruder is equipped with vacuum-pumping equipment, and vacuum tightness is 80～100mbar during its work.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104845351A (en) * | 2014-02-14 | 2015-08-19 | 国乔石油化学股份有限公司 | Modification method of polyoxy xylene/polyamide 66 plastic |
| CN106566168A (en) * | 2015-10-13 | 2017-04-19 | 上海杰事杰新材料(集团)股份有限公司 | Heat-resistant semi-aromatic nylon/polyphenyl ether alloy material and preparation method thereof |
| CN106928702A (en) * | 2015-12-31 | 2017-07-07 | 上海杰事杰新材料(集团)股份有限公司 | A kind of high temperature resistant nylon/polyphenylene oxide composite material and preparation method thereof |
| CN107325536A (en) * | 2017-07-31 | 2017-11-07 | 苏州坤阳机械科技有限公司 | A kind of corrosion-and high-temp-resistant rack for test tube |
| CN108587108A (en) * | 2017-12-26 | 2018-09-28 | 上海普利特复合材料股份有限公司 | A kind of impact PPO/PA alloy materials and preparation method thereof |
| CN109280372A (en) * | 2018-10-22 | 2019-01-29 | 东莞市意普万尼龙科技股份有限公司 | Polyphenyl ether/nylon alloy material product and preparation method thereof |
| CN111040414A (en) * | 2019-12-31 | 2020-04-21 | 贵州凯科特材料有限公司 | SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with low dielectric constant and preparation method thereof |
| CN112251009A (en) * | 2020-10-20 | 2021-01-22 | 江苏金发科技新材料有限公司 | Low-gloss permanent antistatic polycarbonate/styrene resin alloy and preparation method thereof |
| CN113858739A (en) * | 2021-09-18 | 2021-12-31 | 安徽农业大学 | Reinforced fiber polymer composite wallboard with natural network framework and preparation method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104845351A (en) * | 2014-02-14 | 2015-08-19 | 国乔石油化学股份有限公司 | Modification method of polyoxy xylene/polyamide 66 plastic |
| CN106566168A (en) * | 2015-10-13 | 2017-04-19 | 上海杰事杰新材料(集团)股份有限公司 | Heat-resistant semi-aromatic nylon/polyphenyl ether alloy material and preparation method thereof |
| CN106928702A (en) * | 2015-12-31 | 2017-07-07 | 上海杰事杰新材料(集团)股份有限公司 | A kind of high temperature resistant nylon/polyphenylene oxide composite material and preparation method thereof |
| CN107325536A (en) * | 2017-07-31 | 2017-11-07 | 苏州坤阳机械科技有限公司 | A kind of corrosion-and high-temp-resistant rack for test tube |
| CN108587108A (en) * | 2017-12-26 | 2018-09-28 | 上海普利特复合材料股份有限公司 | A kind of impact PPO/PA alloy materials and preparation method thereof |
| CN109280372A (en) * | 2018-10-22 | 2019-01-29 | 东莞市意普万尼龙科技股份有限公司 | Polyphenyl ether/nylon alloy material product and preparation method thereof |
| CN109280372B (en) * | 2018-10-22 | 2021-06-22 | 辰东意普万新材料(广东)有限公司 | Polyphenyl ether/nylon alloy material product and preparation method thereof |
| CN111040414A (en) * | 2019-12-31 | 2020-04-21 | 贵州凯科特材料有限公司 | SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with low dielectric constant and preparation method thereof |
| CN112251009A (en) * | 2020-10-20 | 2021-01-22 | 江苏金发科技新材料有限公司 | Low-gloss permanent antistatic polycarbonate/styrene resin alloy and preparation method thereof |
| CN113858739A (en) * | 2021-09-18 | 2021-12-31 | 安徽农业大学 | Reinforced fiber polymer composite wallboard with natural network framework and preparation method |
| CN113858739B (en) * | 2021-09-18 | 2023-10-20 | 安徽农业大学 | Reinforced fiber polymer composite wallboard with natural network framework and preparation method thereof |
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