CN102352105A - Low-temperature-resistant monomer casting (MC) nylon/nylon plastic alloy and preparation method thereof - Google Patents
Low-temperature-resistant monomer casting (MC) nylon/nylon plastic alloy and preparation method thereof Download PDFInfo
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- CN102352105A CN102352105A CN2011102527913A CN201110252791A CN102352105A CN 102352105 A CN102352105 A CN 102352105A CN 2011102527913 A CN2011102527913 A CN 2011102527913A CN 201110252791 A CN201110252791 A CN 201110252791A CN 102352105 A CN102352105 A CN 102352105A
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Abstract
The invention relates to the field of high polymer materials, in particular to a low-temperature-resistant monomer casting (MC) nylon/nylon plastic alloy and a preparation method thereof. The low-temperature-resistant MC nylon/nylon plastic alloy consists of nylon 6, MC nylon, a toughening agent, an antioxidant and a processing aid. The low-temperature resistance of the MC nylon/nylon plastic alloy is improved through modification, and the MC nylon/nylon plastic alloy still can be normally used at the temperature of -40 DEG C, has high impact strength, modulus, rigidity and surface gloss and is suitable to be popularized and applied.
Description
Technical field
The present invention relates to polymeric material field, be specifically related to a kind of low temperature resistant MC nylon/nylon plastic alloy and preparation method thereof.
Background technology
Polyamide (PA) is commonly called as nylon, and its amide group has polarity, can form hydrogen bond, so mechanical property is outstanding, has shock resistance, is tough and tensile relatively engineering plastics.The characteristics of this material are: 1, percent crystallinity is high, and fusing point is obvious, and surface hardness is big, and is wear-resistant, and frictional coefficient is little, and self lubricity and noise reduction property are arranged.2, low-temperature performance is good, and certain thermotolerance is arranged.3, nontoxic, odorless, nothing are gone rotten, and self-extinguishing is arranged, good weatherability, but dyeability is poor.4, chemicalstability is good, sea water resistance, anti-solvent, oil resistant, but not acidproof.5, electrical insulating property is good, but is prone to temperature influence.6, its water-absorbent is big, moisture dimensional stability and electrical property.Because its excellent performance so nylon application in industry is made is very extensive, as in fields such as automobile, instrument, machinery, weaving, adopts this material as component and structural part mostly.
MC nylon is claimed nylon monomer-cast nylon again, and it is under normal pressure, and fused raw material caprolactam monomer is made catalyzer with the material of alkalescence; Process monomer to be gathered with auxiliary agents such as acvators; Directly inject the mould that is preheating to certain temperature, make material in mould, carry out polyreaction soon, condense into tough and tensile solid embryo spare; Pass through relevant art breading again, the goods that obtain being scheduled to.The MC nylon products is as one of engineering plastics, " with mould Dai Gang, performance is remarkable ", purposes is extremely extensive.It has in light weight, intensity is high, self-lubricating, wear-resisting, anticorrosion, multiple special performances such as insulation are widely used engineering plastics, almost spread all over all industrial circles.
MC nylon/nylon plastic alloy is the mixture of cast polyamides and polymeric amide, has the two over-all properties of MC nylon and nylon, for example the H.T. of the HS of MC nylon and lower temperature resistance and nylon.MC nylon/nylon plastic alloy is fit to make castor castor, perambulator toy joint piece, bearing etc. and has shock resistance, wear resistance and dimensional stability.
But the same with other plastics, its toughness of MC nylon/nylon plastic alloy can receive the very big influence of temperature, generally shows as low temperature brittleness.Therefore plastics are carried out modification, improve its resistance to low temperature, will widen the material Application Areas.
Summary of the invention
The objective of the invention is to have the shortcoming of low temperature brittleness, a kind of low temperature resistant MC nylon/nylon plastic alloy is provided according to existing its toughness of MC nylon/nylon plastic alloy.
Another purpose of the present invention is to provide the preparation method of above-mentioned low temperature resistant MC nylon/nylon plastic alloy.
Above-mentioned purpose of the present invention is achieved through following technical scheme:
A kind of low temperature resistant MC nylon/nylon plastic alloy is by forming according to the component of mass percent meter as follows: the MC nylon of 50 ~ 70% nylon 6,20 ~ 30%, 5 ~ 20% toughner, 0.2 ~ 0.5% oxidation inhibitor and 0.2 ~ 0.5% processing aid.
As a kind of preferred version, said toughner is one or more the mixture in the ethylene-butene copolymer of maleic anhydride graft, the ethylene-propylene of maleic anhydride graft-conjugated diene terpolymer, the Vilaterm.
As a kind of preferred version, said oxidation inhibitor is phenolic antioxidant or phosphite kind antioxidant.
As a kind of preferred version, said processing aid is at least a in ethylene bis stearic acid amide, the silicone powder.
The preparation method of the low temperature resistant MC nylon/nylon plastic alloy of the present invention is dried nylon; After mixing in proportion with MC nylon, toughner, oxidation inhibitor and processing aid then; Through twin screw extruder shearing, mixing; Extrude, tie rod, drying, pelletizing, cross strong magnetic, packing by head, obtain low temperature resistant MC nylon/nylon plastic alloy.
As a kind of preferred version, among the above-mentioned preparation method, the temperature of said nylon oven dry is 110 ℃, and drying time is 3h.
As a kind of preferred version, among the above-mentioned preparation method, each section extruder temperature of said twin screw basis machine is 220 ~ 240 ℃, and screw speed is 400rpm.
Compared with prior art, the present invention has following beneficial effect:
Low temperature resistant MC nylon/nylon plastic alloy according to the invention has high impulse strength, high/low-temperature impact intensity, high-modulus, high rigidity and high surface gloss.Still can normally use at-40 ℃ of low temperature.
Embodiment
Come further to explain the present invention below in conjunction with embodiment, but embodiment does not do any type of qualification to the present invention.
In following examples, nylon 6 reaches the M2800 product for U.S.A, and MC nylon is available from Changzhou dragon pearl loom factory; The ethylene-butene copolymer of maleic anhydride graft is available from South Sea Bai Chen; The ethylene-propylene of maleic anhydride graft-conjugated diene terpolymer is available from the light of Ningbo ability, and Vilaterm is available from the Lanzhou petrochemical industry, and phenolic antioxidant is available from Jin Haiyabao; Ethylene bis stearic acid amide can be matched successful plastic cement available from Changzhou, and the silicone powder is available from Hangzhou Jesse's card chemical industry.
Embodiment 1 ~ 2
Table 1 (material proportion is weight percentage)
Component | Embodiment 1 | Embodiment 2 |
Nylon 6 | 69.4 | 59.4 |
MC nylon | 20 | 30 |
Toughner (grafting POE) | 10 | 10 |
Oxidation inhibitor (1010/168) | 0.3 | 0.3 |
Processing aid (silicone powder) | 0.3 | 0.3 |
Nylon 6 was dried by the fire 3 hours at 110 ℃; Send in the twin screw extruder after again nylon, MC nylon, toughner, oxidation inhibitor, the processing aid of drying being mixed in proportion; Through shearing high company of twin screw, mixing, extrude, tie rod, drying, pelletizing, cross strong magnetic and packing by head.
Prepare low temperature resistant MC nylon/nylon plastic alloy according to the material proportion in above-mentioned processing condition and the table 1.
Embodiment 3 performance tests
Extruder temperature a: district: 235 ℃, 240 ℃ in two districts, 220 ℃ in three districts, 225 ℃ in four districts, 240 ℃ of die heads.
Low temperature resistant MC nylon/nylon plastic alloy to preparation among the embodiment 1,2 carries out performance test, and testing method and result see table 2.
Table 2
The foregoing description 1 and 2 said composition of raw materials and preparation process are preferred embodiments of the present invention; All changes of having done according to technical scheme of the present invention; When the function that is produced fails to exceed the scope of technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (7)
1. a low temperature resistant MC nylon/nylon plastic alloy is characterized in that by forming according to the component of mass percent meter as follows: the MC nylon of 50 ~ 70% nylon 6,20 ~ 30%, 5 ~ 20% toughner, 0.2 ~ 0.5% oxidation inhibitor and 0.2 ~ 0.5% processing aid.
2. low temperature resistant MC nylon/nylon plastic alloy according to claim 1 is characterized in that said toughner is one or more the mixture in the ethylene-butene copolymer of maleic anhydride graft, the ethylene-propylene of maleic anhydride graft-conjugated diene terpolymer, the Vilaterm.
3. low temperature resistant MC nylon/nylon plastic alloy according to claim 1 is characterized in that said oxidation inhibitor is phenolic antioxidant or phosphite kind antioxidant.
4. low temperature resistant MC nylon/nylon plastic alloy according to claim 1 is characterized in that said processing aid is at least a in ethylene bis stearic acid amide, the silicone powder.
5. the preparation method of any said low temperature resistant MC nylon/nylon plastic alloy of claim in the claim 1 ~ 4; It is characterized in that it being that nylon is dried; After mixing in proportion with MC nylon, toughner, oxidation inhibitor and processing aid then; Through twin screw extruder shear, mixing, extrude, tie rod, drying, pelletizing, cross strong magnetic, packing by head, obtain low temperature resistant MC nylon/nylon plastic alloy.
6. according to the preparation method of the said low temperature resistant MC nylon/nylon plastic alloy of claim 5, it is characterized in that the temperature of said nylon oven dry is 110 ℃, drying time is 3h.
7. according to the preparation method of the said low temperature resistant MC nylon/nylon plastic alloy of claim 5, it is characterized in that each section extruder temperature of said twin screw basis machine is 220 ~ 240 ℃, screw speed is 400rpm.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104072984A (en) * | 2014-06-12 | 2014-10-01 | 安徽安尔达机电有限公司 | Oil-resistant high-temperature-resistant nylon material for speed control gear |
CN106633845A (en) * | 2016-11-02 | 2017-05-10 | 无锡艾科瑞思产品设计与研究有限公司 | Nylon plastic bearing retainer for draw-bar box and preparation method of nylon bearing retainer |
CN108912669A (en) * | 2018-06-22 | 2018-11-30 | 宁波帅特龙集团有限公司 | A kind of sunshade bracket |
CN110408197A (en) * | 2019-06-21 | 2019-11-05 | 宣城龙华电子有限公司 | A kind of low temperature resistant band and preparation method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000143974A (en) * | 1998-09-11 | 2000-05-26 | Nippon Polypenco Ltd | Polyamide composition and its molded product |
CN1537880A (en) * | 2003-04-18 | 2004-10-20 | �Ϻ����½��²��Ϲɷ�����˾ | Touthness nylon, its preparation method and use |
CN101139462A (en) * | 2007-10-09 | 2008-03-12 | 佛山市顺德区高怡新塑料有限公司 | Carbon fiber reinforcement non-bittern flame-proof nylon 66 and preparation method thereof |
-
2011
- 2011-08-30 CN CN2011102527913A patent/CN102352105B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000143974A (en) * | 1998-09-11 | 2000-05-26 | Nippon Polypenco Ltd | Polyamide composition and its molded product |
CN1537880A (en) * | 2003-04-18 | 2004-10-20 | �Ϻ����½��²��Ϲɷ�����˾ | Touthness nylon, its preparation method and use |
CN101139462A (en) * | 2007-10-09 | 2008-03-12 | 佛山市顺德区高怡新塑料有限公司 | Carbon fiber reinforcement non-bittern flame-proof nylon 66 and preparation method thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104072984A (en) * | 2014-06-12 | 2014-10-01 | 安徽安尔达机电有限公司 | Oil-resistant high-temperature-resistant nylon material for speed control gear |
CN106633845A (en) * | 2016-11-02 | 2017-05-10 | 无锡艾科瑞思产品设计与研究有限公司 | Nylon plastic bearing retainer for draw-bar box and preparation method of nylon bearing retainer |
CN108912669A (en) * | 2018-06-22 | 2018-11-30 | 宁波帅特龙集团有限公司 | A kind of sunshade bracket |
CN110408197A (en) * | 2019-06-21 | 2019-11-05 | 宣城龙华电子有限公司 | A kind of low temperature resistant band and preparation method thereof |
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