CN103333488A - Toughened nylon alloy and preparation method thereof - Google Patents
Toughened nylon alloy and preparation method thereof Download PDFInfo
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- CN103333488A CN103333488A CN201310257795XA CN201310257795A CN103333488A CN 103333488 A CN103333488 A CN 103333488A CN 201310257795X A CN201310257795X A CN 201310257795XA CN 201310257795 A CN201310257795 A CN 201310257795A CN 103333488 A CN103333488 A CN 103333488A
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Abstract
The invention relates to toughened nylon alloy and a preparation method thereof; the toughened nylon alloy comprises the following raw material formulations in parts by weight: 60-90 parts of nylon resin, 10-40 parts of toughening agent, and also 5-40 parts of filler; and the preparation method comprises the following steps of: weighing and adding various raw materials in required parts by weight into a high-speed mixer to be mixed uniformly, adding uniformly mixed materials into a double-screw extruder, fusing, plastifying and extruding through the double-screw extruder, cooling through a water through tank, and granulating through a granulator. The toughened nylon alloy disclosed by the invention is excellent in toughness, better in flowability, easy for injection moulding and good in surface appearances of products.
Description
Technical field
The present invention relates to a kind of toughened polyamide alloy and preparation method thereof, belong to technical field of polymer materials.
Background technology
Polymeric amide (Polyamide, PA is commonly called as nylon) is that U.S. DuPont company develops the resin for fiber at first, realizes industrialization in nineteen thirty-nine.Begin exploitation the 1950's and produce injection-molded item, the requirement of satisfying the lightweight of downstream industry goods, reducing cost with substituted metal.PA has good comprehensive performances, comprise mechanical property, thermotolerance, wearability, chemical proofing and self lubricity, and frictional coefficient is low, certain flame retardant resistance is arranged, be easy to processing, be suitable for glass fibre and other filler filling enhancing modified, and can add auxiliary agents such as toughner, fire retardant and improve performance and broadened application scopes such as its toughness, flame retardant resistance.
Tenacity increased nylon still can keep good physicals under low temperature environment.Toughner by adding different structure is to increase snappiness, impact resistance, the lower temperature resistance of matrix material.Though intensity, rigidity, thermotolerance descend to some extent than parent nylon, shock strength can improve more than 10 times, and has excellent abrasive and dimensional stability, and the tenacity increased nylon after the modification can radiation hardness, UV resistant, and have excellent physical strength.
Existing tenacity increased nylon is mobile variation along with the increase of the shock strength of tenacity increased nylon, often occurs variety of issues such as difficult processing and surface for the higher tenacity increased nylon of toughness in the time of injection moulding.For toughness and the mobile equilibrium problem that solves this tenacity increased nylon, need each component prescription ratio of existing toughened polyamide alloy composition be optimized, to reach in superhigh tenacity, reserved materials has good mobility.
Summary of the invention
The invention provides a kind of toughened polyamide alloy and preparation method thereof.
For achieving the above object, first kind of technical scheme that the present invention adopts is: a kind of toughened polyamide alloy, and the composition of raw materials of described toughened polyamide alloy mainly is made up of following materials in weight portion:
Nylon resin 60～90 weight parts;
Toughner 10～40 weight parts;
Described toughner is the mixture of ethene-alpha-olefin copolymer (POE, polyolefin elastomer Polyolefin elastomer) and maleic anhydride grafted ethene-alpha-olefin copolymer; The quality percentage composition of ethene-alpha-olefin copolymer in the described toughner (MAH-g-POE) is 10～80%.
Optimized technical scheme is: the melting index that described ethene-alpha-olefin copolymer is measured under 190 ℃ and 2.16Kg load is pressed the ISO1133 international standard more than or equal to 3g/10min().
Optimized technical scheme is: described nylon resin is that viscosity is 2.2～3.2 nylon 6(PA6).
Optimized technical scheme is: described nylon resin is that viscosity is 2.3～3.2 nylon 66(PA66).
Optimized technical scheme is: the percentage of grafting of maleic anhydride in described maleic anhydride grafted ethene-alpha-olefin copolymer (MAH) is 0.3～1.2%.
Optimized technical scheme is: the weighting material that also comprises 5～40 weight parts in the described composition of raw materials; Described weighting material is selected from talcum powder, calcium carbonate, wollastonite powder, mica powder, glass microballon, Calucium Silicate powder, barium sulfate, silicon-dioxide, glass fibre.
For achieving the above object, second kind of technical scheme that the present invention adopts is: may further comprise the steps:
Step a, carry out pre-mixing by the corresponding material of the weighing of composition of raw materials described in the technique scheme and obtain compound;
Step b, the compound that described step a is obtained drop into the twin screw extruder feeding bin, and through the forcing machine fusion plastification, pelletizing after cooling off makes toughened polyamide alloy.
Related content in the technique scheme is explained as follows:
1, in the such scheme, when maleic anhydride grafting ratio was lower than 0.3%, the shock strength of resulting composition was very low, can not be used for preparing toughened polyamide alloy of the present invention, and when maleic anhydride grafting ratio surpassed 1.2%, the flowability of gained toughened polyamide alloy can reduce significantly.Wherein the mensuration of the percentage of grafting of MAH-g-POE is measured by acid base titration, is calculated as follows percentage of grafting:
Percentage of grafting=49 * (N
1V
1-N
2V
2)/m * l00%
In the formula, N
1Be the concentration of KOH-ethanolic soln, mol/L; V
1Be the volume of KOH-ethanolic soln, L; N
2Be the concentration of HCI-Virahol, mol/L; V
2Be the volume of HCl-Virahol, L; M is the quality of sample, g.
Percentage of grafting claims grafting efficiency (efficiency of grafting) again, refers in the graft copolymerization, and monomer or polymkeric substance prop up the monomer for the treatment of grafting of the amount that is linked in the graft copolymer and initial input or treat the ratio of the total amount of polymers grafted side chain.
2, in the such scheme, alpha-olefin (α-olefin, Alpha Olefins) refers to that two keys are at the monoolefine of molecular chain end, molecular formula R-CH=CH
2, wherein R is alkyl.If R is straight chained alkyl, then be called linear alpha-olefin (LAO).
3, in the such scheme, also can comprise auxiliary agents such as oxidation inhibitor, lubricant and nucleator, these auxiliary agents are that the general engineering technology personnel of the industry are known, neither be necessary for the present invention.
Because technique scheme is used, the present invention compared with prior art has following advantage and effect:
The toughened polyamide alloy that the present invention makes, impact strength is splendid, good fluidity, products appearance is good, and the product shrinking percentage is similar with general enhancing tenacity increased nylon.The performance that the ISO respective standard of pressing relevant product of the present invention detects gained is as follows: modulus in flexure is more than 1700MPa, the socle girder notched Izod impact strength can reach different shock strengths according to different ingredients, and pure toughened polyamide alloy notched izod shock strength under this melting index scope can reach 80KJ/m
2More than, filler is that the toughened polyamide alloy notched izod shock strength of glass fibre is at 55KJ/m
2Shi Yiran can keep higher flowability, and other filler toughened polyamide alloy notched Izod impact strength under similar mobile situation can reach 70KJ/m
2
Embodiment
Be further described below in conjunction with the present invention of embodiment:
Embodiment 1: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 80 parts of PA6 resins (A11), ethene-alpha-olefin copolymer POE(B11) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 10 part, 25 parts of wollastonite powder (C3), 0.5 part of nucleator (going up the SeaBird space chemical industry WT-5000 of company limited), (0.2 part in oxidation inhibitor (vapour bar 1098), 0.4 part of lubricant (E1).The melting index of ethene-alpha-olefin is 3g/10min.
The preparation method:
Step a, carry out pre-mixing by the corresponding material of above-mentioned raw materials prescription weighing and obtain compound;
Step b, the compound that described step a is obtained drop into the twin screw extruder feeding bin, and through the forcing machine fusion plastification, pelletizing after cooling off makes toughened polyamide alloy.The preparation method of embodiment 2～12 and three Comparative Examples all method with embodiment 1 is identical.
Embodiment 2: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 65 parts of PA6 resins (A12), ethene-alpha-olefin copolymer POE(B12) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 10 part, 10 parts of wollastonite powder (C3), 15 parts of roving glass fibers (C9), 0.2 part in oxidation inhibitor (vapour bar 1098), 0.4 part of lubricant (E2).The melting index of ethene-alpha-olefin is 3.5g/10min.
Embodiment 3: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 70 parts of PA6 resins (A13), ethene-alpha-olefin copolymer POE(B13) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 8 part, 10 parts of wollastonite powder (C3), 15 parts of short glass fibers (C10), 0.2 part in oxidation inhibitor (vapour bar 1098), 0.4 part of lubricant (E3).The melting index of ethene-alpha-olefin is 4g/10min.
Embodiment 4: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 75 parts of PA6 resins (A14), ethene-alpha-olefin copolymer POE(B14) 6 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B22) 14 part, 25 parts of talcum powder (C2), 0.5 part of nucleator (go up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.The melting index of ethene-alpha-olefin is 3.8g/10min.
Embodiment 5: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 80 parts of PA6 resins (A15), ethene-alpha-olefin copolymer POE(B13) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 15 part, 35 parts of talcum powder (C2), 0.5 part of glass microballon (C5), 0.5 part of nucleator (going up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.The melting index of ethene-alpha-olefin is 3.2g/10min.
Embodiment 6: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 60 parts of PA66 resins (A21), ethene-alpha-olefin copolymer POE(B12) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 3 part, 25 parts of mica powders (C4), 0.5 part of nucleator (go up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.The melting index of ethene-alpha-olefin is 4.1g/10min.
Embodiment 7: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 90 parts of PA66 resins (A22), ethene-alpha-olefin copolymer POE(B11) 20 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B22) 20 part, 15 parts in calcium carbonate (C1), 0.5 part of nucleator (go up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Embodiment 8: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 63 parts of PA66 resins (A21), ethene-alpha-olefin copolymer POE(B12) 6 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 6 part, 15 parts in barium sulfate (C7), 10 parts in calcium carbonate (C1), 0.5 part of nucleator (going up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Embodiment 9: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 78 parts of PA6 resins (A12), ethene-alpha-olefin copolymer POE(B12) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B22) 10 part, 25 parts of Calucium Silicate powder (C6), 0.5 part of nucleator (go up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Embodiment 10: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 80 parts of PA66 resins (A21), ethene-alpha-olefin copolymer POE(B11) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 10 part, 0.5 part of nucleator (going up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Embodiment 11: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 20 parts of PA6 resins (A13), 45 parts of PA66 resins (A21), ethene-alpha-olefin copolymer POE(B11) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B21) 10 parts, 25 parts of talcum powder (C2), 0.5 part of nucleator (going up the SeaBird space chemical industry WT-5000 of company limited), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Embodiment 12: a kind of toughened polyamide alloy and preparation method thereof
Represent with parts by weight, its raw material consists of 60 parts of PA66 resins (A22), ethene-alpha-olefin copolymer POE(B13) 10 part, homemade high workability modified by maleic acid anhydride graft ethene-alpha-olefin copolymer MAH-g-POE(B22) 10 part, 25 parts of short glass fibers (C10), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
A: nylon resin
PA6
A11, newly understand U.S.A and reach (M2500I);
A12, newly understand U.S.A and reach (M2800I);
A13, Yueyang Ba Ling petrochemical industry (YH800);
A14, Yueyang Ba Ling petrochemical industry (YH3200);
A15, BASF BASF(B3S);
PA66：
A21, refreshing horse group (EPR27);
A22, refreshing horse group (EPR32);
B toughner:
B1: ethene-alpha-olefin copolymer (POE)
B11, Mitsui Chemicals (H-5030S);
B12, Exxon Mobil (5371);
B13, Exxon Mobil (7256);
B14, Exxon Mobil (8400);
B2: modified by maleic acid anhydride graft ethene-alpha-olefin copolymer (MAH-g-POE)
B21, maleic anhydride grafted ethene-α-octene copolymer, the percentage of grafting of maleic anhydride are 0.8%; The preparation method is as follows for the modified by maleic acid anhydride graft ethylene-alpha-octylene copolymers: earlier maleic anhydride is put into positive butyl acetate solution and dissolve, make its saturated solution; Again ethylene-alpha-octylene copolymers POE(90 weight part), high workability Co-polypropylene (10 weight part), maleic anhydride saturated solution (0.6～2 weight part), dicumyl peroxide (0.6～2 weight part), oxidation inhibitor (0.1～0.5 weight part), lubricant (0.4 weight part) mix back input twin screw extruder extruding pelletization through high mixer and namely get maleic anhydride grafted ethene-α-octene copolymer.
B22, percentage of grafting are 0.4%.The preparation method is as follows: earlier maleic anhydride is put into positive butyl acetate solution and dissolve, make its saturated solution; Again ethylene-alpha-octylene copolymers POE(90 weight part), high workability Co-polypropylene (10 weight part), maleic anhydride saturated solution (0.3～1.2 weight part), dicumyl peroxide (0.25～1 weight part), oxidation inhibitor (0.1～0.5 weight part), lubricant (0.4 weight part) mix back input twin screw extruder extruding pelletization through high mixer and namely get maleic anhydride grafted ethene-α-octene copolymer.
C, filler: be selected from talcum powder, calcium carbonate, wollastonite powder, mica powder, glass microballon, Calucium Silicate powder, barium sulfate, silicon-dioxide, glass fibre.
C1, calcium carbonate: Jiangxi occasion space nanometer grade calcium carbonate;
C2, talcum powder: the extra large chemical industry stone flour of Haicheng City pellet factory, SD-600A;
C3, wollastonite powder: the difficult to understand special fine powder in Jiangxi company limited, AT-0026;
C4, mica powder: Shijiazhuang City Baofeng mica factory, W-1250;
C5, glass microballon: Minnesota Mining and Manufacturing Company, K20;
C6, Calucium Silicate powder: the big prosperous environment-friendly materials of Wuxi City company limited, T800H;
C7, barium sulfate: hundred million trade Co., Ltds, TBY-30 are opened up in Guangzhou;
C8, silicon-dioxide: the precious specialization worker in Shouguang City company limited, W-200;
C9, long glass fibres: the 988A-R14 of megalith group;
C10, short glass fiber: the limited public affairs of Mount Taishan glass fibre T435TM-R13.
D, oxidation inhibitor: oxidation inhibitor 1098, vapour bar.
E, lubricant
E1, ethylene bis stearamide (EBS), Japanese Kao;
E2, silicone powder, you mould industry company limited, HR-208 the Shangyu curry favour;
E3, TAF, bright and beautiful prosperous Chemical Industry Science Co., Ltd is created in the Guangzhou.
F, nucleator: go up SeaBird space chemical industry company limited, WT-5000.
The correlated performance of each material is tested by following testing method among the present invention:
A, melting index: the test condition by ISO1133 international standard test (toughened Nylon 6 (be parent with nylon 6) is 260 ℃, 2.16Kg load; Toughened Nylon 6 6(is parent with nylon 66) test condition be 280 ℃, 2.16KG load; The test condition of POE is 190 ℃, 2.16kg);
B, socle girder notched Izod impact strength: by ISO180 international standard test (the pendulum energy is 5.5J, and the batten specification is 80mm x10mm x4mm).
C, modulus in flexure: by ISO178 international standard test (test speed is 2mm/min, and the batten specification is 80mm x10mm x4mm).
The mensuration of d, maleic anhydride grafting ratio is measured by acid base titration, is calculated as follows percentage of grafting:
Percentage of grafting=49 * (N
1V
1-N
2V
2)/m * l00%
In the formula, N
1Be the concentration of KOH-ethanolic soln, mol/L; V
1Be the volume of KOH-ethanolic soln, L; N
2Be the concentration of HCI-Virahol, mol/L; V
2Be the volume of HCl-Virahol, L; M is the quality of sample, g.
Comparative Examples 1:
Represent that with parts by weight its raw material consists of 80 parts of PA6 resins (A13), ethene-alpha-olefin copolymer POE(B11) 20 parts, 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Comparative Examples 2:
Represent with parts by weight, its raw material consists of 80 parts of PA6 resins (A13), homemade high workability modified by maleic acid anhydride graft ethylene-alpha-octylene copolymers MAH-g-POE(B21) 20 parts, 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Comparative Examples 3:
Represent with parts by weight, its raw material consists of 80 parts of PA6 resins (A13), 20 parts of homemade high workability modified by maleic acid anhydride graft ethylene-alpha-octylene copolymers MAH-g-POE (B22), 0.2 part in oxidation inhibitor (vapour bar 1098), EBS(Japanese Kao) 0.4 part.
Performance such as the following table of the toughened polyamide alloy that Comparative Examples 1～3 and embodiment 1～3 make:
According to last table, in conjunction with component ratio and the test performance data of Comparative Examples 1, Comparative Examples 2, use the POE tenacity increased nylon of not grafting as can be known separately, because consistency between the two is very poor, the toughening effect extreme difference.
According to last table, its percentage of grafting of MAH-g-POE(of the self-control high workability of using in the Comparative Examples 2 is 0.8%), high its percentage of grafting of MAH-g-POE(that flows of the self-control of using in the Comparative Examples 3 is 0.4%), contrast can be obtained by the melting index of the toughened polyamide alloy composition that these two schemes obtain, the percentage of grafting of MAH-g-POE to the influence of product is: percentage of grafting is more high, the shock strength that obtains tenacity increased nylon is higher relatively, it is bigger that but melting index reduces, bigger to the forming process influence, so the percentage of grafting of the MAH-g-POE that uses is unsuitable too high, according to the variant production requirement, select the POE of suitable percentage of grafting.If also be added with in the composition when causing the weighting material that reduces gloss etc. easily, the melting index of toughened polyamide alloy reduces will have bigger detrimentally affect to the product surface outward appearance.Glass fibre strengthens tenacity increased nylon as everyone knows, glass fibre modification of nylon product own just causes problem of appearance such as goods glass emergence on the surface extremely easily, if impel the melting index of material to reduce bigger after adding toughner, glass emergence on the surface will be more and more obvious, and cause product to use, under the shock strength that keeps product, need to improve the flowability of product simultaneously.
According to last table, combined composition ratio and test performance data in conjunction with Comparative Examples 2, Comparative Examples 3, can draw and use POE and MAH-g-POE to be used the shock strength that can keep the toughened polyamide alloy composition in the Comparative Examples 3, melting index when simultaneously the melting index of composition is also toughness reinforcing than independent use MAH-g-POE is big, can improve the injection moulding processing characteristics of product.It is the same substantially to be such as the glass fiber enhanced nylon alloy composite among the embodiment 2 that product appearance remains on general enhancing tenacity increased nylon (being that notched Izod impact strength is about 25KJ/m2), improves the use range of product.
The performance of the toughened polyamide alloy that embodiment 4～12 makes such as following table:
12 toughened polyamide alloy that embodiment 1～embodiment 12 makes can both keep the good mobility energy when having than high impact.
Existing tenacity increased nylon boiled 12 hours to 24 hours without hot water, and the shock-resistant test of product can't reach test and install and use requirement, for satisfy some nylon automobile fitting on the market, instrument goods producer needs are removed the requirements such as operation that nylon products hot water boils from.According to this defective of existing tenacity increased nylon and some other for toughness reguirements product demand high or that had relatively high expectations in the surface, need to increase greatly the toughness of tenacity increased nylon, but tenacity increased nylon is along with the increase of toughner, the mobile obviously variation of self material, cause moulding to become difficult easily, need to adjust factors such as injection temperature, cause material flavescence at high temperature again easily, variable color; The mobile variation of tenacity increased nylon can cause also that simultaneously the products appearance surface becomes flower, phenomenons such as gloss reduction, as its glass fibre of tenacity increased nylon that is added with glass fibre exposes phenomenon and will become very obvious.According to above-mentioned situation, this just needs to have a kind of tenacity increased nylon can keep higher flowability when reaching bigger shock strength, reach shock strength and the mobile balance of toughened polyamide alloy, and it is almost had no adverse effects to contour machining procedure and product surface.The invention provides a kind of toughened polyamide alloy and preparation method thereof.Product toughened polyamide alloy of the present invention is a big kind of modification of nylon, mainly be by adding the toughner that the mixture of the ethene-alpha-olefin copolymer (MAH-g-POE) of the ethene-alpha-olefin copolymer of the high workability of proportioning (POE) and modified by maleic acid anhydride graft is by a certain percentage used as tenacity increased nylon simultaneously, improve the low temperature of product and the notched Izod impact strength of normal temperature, keep the composition good mobility simultaneously, the goods that the said composition injection moulding that is obtains have good surface appearance.
Embodiment 13: a kind of toughened polyamide alloy, and the composition of raw materials of described toughened polyamide alloy mainly is made up of following materials in weight portion:
Nylon resin 80 weight parts;
Toughner 30 weight parts;
Described toughner is the mixture of ethene-alpha-olefin copolymer (POE, polyolefin elastomer Polyolefin elastomer) and maleic anhydride grafted ethene-alpha-olefin copolymer; The quality percentage composition of ethene-alpha-olefin copolymer in the described toughner (MAH-g-POE) is 30%.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. toughened polyamide alloy, it is characterized in that: the composition of raw materials of described toughened polyamide alloy mainly is made up of following materials in weight portion:
Nylon resin 60 ~ 90 weight parts;
Toughner 10 ~ 40 weight parts;
Described toughner is the mixture of ethene-alpha-olefin copolymer and maleic anhydride grafted ethene-alpha-olefin copolymer; The quality percentage composition of ethene-alpha-olefin copolymer is 10 ~ 80% in the described toughner.
2. toughened polyamide alloy according to claim 1 is characterized in that: the melting index that described ethene-alpha-olefin copolymer is measured under 190 ℃ and 2.16Kg load is more than or equal to 3g/10min.
3. toughened polyamide alloy according to claim 1, it is characterized in that: described nylon resin is that viscosity is 2.2 ~ 3.2 nylon 6.
4. toughened polyamide alloy according to claim 1, it is characterized in that: described nylon resin is that viscosity is 2.3 ~ 3.2 nylon 66.
5. toughened polyamide alloy according to claim 1, it is characterized in that: the percentage of grafting of maleic anhydride is 0.3 ~ 1.2% in described maleic anhydride grafted ethene-alpha-olefin copolymer.
6. toughened polyamide alloy according to claim 1 is characterized in that: the weighting material that also comprises 5 ~ 40 weight parts in the described composition of raw materials; Described weighting material is selected from talcum powder, calcium carbonate, wollastonite powder, mica powder, glass microballon, Calucium Silicate powder, barium sulfate, silicon-dioxide, glass fibre.
7. the preparation method of a toughened polyamide alloy is characterized in that: may further comprise the steps:
Step a, carry out pre-mixing by the corresponding material of the described composition of raw materials weighing of arbitrary claim in the claim 1 ~ 6 and obtain compound;
Step b, the compound that described step a is obtained drop into the twin screw extruder feeding bin, and through the forcing machine fusion plastification, pelletizing after cooling off makes toughened polyamide alloy.
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| CN107151856A (en) * | 2017-06-07 | 2017-09-12 | 郑州豫达纺织机械有限公司 | A kind of fly-shuttle loom plastic alloy picking stick and preparation method thereof |
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| CN104693789A (en) * | 2015-03-04 | 2015-06-10 | 安徽科聚新材料有限公司 | Flogopite and glass fiber compound filled PA6 reinforcing material and preparation method thereof |
| CN104761896A (en) * | 2015-04-22 | 2015-07-08 | 合肥康龄养生科技有限公司 | Damping ageing-resistant nylon composite material and preparation method thereof |
| CN105949752A (en) * | 2016-05-11 | 2016-09-21 | 南京京锦元科技实业有限公司 | Glass fiber reinforced polyamide resin composite |
| WO2017197657A1 (en) * | 2016-05-16 | 2017-11-23 | 苏州新区华士达工程塑胶有限公司 | Modified polyamide filled plastic |
| CN107057339A (en) * | 2017-06-02 | 2017-08-18 | 杭州本松新材料技术股份有限公司 | A kind of activeness and quietness nylon material and its preparation method and application |
| CN107151856A (en) * | 2017-06-07 | 2017-09-12 | 郑州豫达纺织机械有限公司 | A kind of fly-shuttle loom plastic alloy picking stick and preparation method thereof |
| CN107151856B (en) * | 2017-06-07 | 2018-05-11 | 郑州豫达纺织机械有限公司 | A kind of fly-shuttle loom plastic alloy picking stick and preparation method thereof |
| CN109777096A (en) * | 2019-01-22 | 2019-05-21 | 江苏博云塑业股份有限公司 | A kind of polyamide compoiste material and preparation method thereof |
| CN109735009A (en) * | 2019-01-23 | 2019-05-10 | 江苏博云塑业股份有限公司 | A kind of thermoplas tic resin composite and preparation method thereof |
| CN112480664A (en) * | 2020-11-30 | 2021-03-12 | 中国第一汽车股份有限公司 | Polyamide material, automobile cooling hose and preparation method thereof |
| CN113278285A (en) * | 2021-04-27 | 2021-08-20 | 江门市横海南塑料制品有限公司 | Nylon composite material and preparation method thereof |
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