CN105820563A - Antioxidant nylon mould material and preparation method thereof - Google Patents
Antioxidant nylon mould material and preparation method thereof Download PDFInfo
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- CN105820563A CN105820563A CN201610275879.XA CN201610275879A CN105820563A CN 105820563 A CN105820563 A CN 105820563A CN 201610275879 A CN201610275879 A CN 201610275879A CN 105820563 A CN105820563 A CN 105820563A
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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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
- C08L2201/08—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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses an antioxidant nylon mould material which consists of the following raw materials in parts by weight: 0.3-1 part of chitosan, 100-130 parts of nylon 66, 110-140 parts of dimethylformamide, 4-6 parts of molybdenum disulfide, 0.1-0.2 part of lithium chloride, 2-3 parts of polystyrene, 20-30 parts of glass fiber, 1-2 parts of tung oil, 0.7-1 part of hexadecyl trimethyl ammonium bromide, 0.6-1 part of p-nitrophenol, 3-4 parts of poly(propylene glycol adipate), 1-2 parts of calcium petroleum sulfonate, 1-3 parts of antimonous oxide, 0.3-0.6 part of stearamide, 0.1-0.2 part of antioxidant 1010 and 2-3 parts of barium stearate. In the invention, the added modifying molybdenum disulfide can be dispersed in the polymer matrix, so that the thermal stability of the material is effectively improved; and meanwhile, the molybdenum disulfide releases non-flammable gas sulfur dioxide in a thermal degradation process, and the dilution effect of the sulfur dioxide can improve the flame retardance of the material.
Description
Technical field
The present invention relates to mold materials technical field, particularly relate to a kind of antioxidation nylon mold materials and preparation method thereof.
Background technology
Mould produces indispensable frock as modern industry, play conclusive effect aborning, current mould uses metal material mostly, quality and the life-span of metal die are the highest, but its cost of manufacture is expensive, especially some complex contours, the difficult metal die shaped, manufacturing process is extremely complex, a lot of metal materials there is also processing difficulties simultaneously, and the process-cycle is long, and the defect that after die wear, repair time is longer；
Along with developing rapidly of industry, improving constantly of the aspects such as polymer composites intensity and precision, the range of application making its goods is also constantly expanding, for metal material, polymer composites cost of manufacture is cheap, easy-formation, and the process-cycle is short, repair time is short, and these advantages make it have huge potentiality in mould applications；
Molybdenum disulfide nano sheet layer has relatively low heat conductivity, plays lamella blocking effect for molybdenum bisuphide and provide safeguard in polymeric material pyrolysis and combustion process；Meanwhile, the existence of transition metal molybdenum can promote that polymeric matrix forms fine and close solid layer of charcoal, it is possible to effectively stops the exchanges of mass and energy between flame and polymeric matrix, the degraded of suppression polymer, the final fire resistance improving polymeric material.Additionally, molybdate compound is as multiple polymers such as PA, PVC, PS, HIPS, ABS, polyolefin and the smoke suppressant of Halogen polyester, polymeric material burning cigarette and the growing amount of CO can be reduced, reduce the fire risk of material, win the quality time for fire rescue；
The most domestic and international document report for molybdenum bisuphide with polymer composites is concentrated mainly on the aspects such as electric conductivity and the frictional behaviour of composite, seldom relate to hot property and the fire safety evaluating performance of material, therefore, system carry out molybdenum bisuphide and derivant thereof the applied research in terms of flame retardance of polymer material, to exploitation BACN, enrich and improve flame retardance of polymer system, being of great immediate significance.
But, there is a most thorny difficult problem in the research of current molybdenum-disulfide radical polymer nanocomposites.The dispersion in polymeric matrix of efficiently the peeling off of such as molybdenum bisuphide, molybdenum disulfide nano sheet layer and single molybdenum disulfide nano sheet layer there may be the problems such as flame retarding efficiency is the highest；
Therefore, in order to solve the problems referred to above, the present invention explores, designs efficient molybdenum bisuphide stripping means；Utilize organic molecule modified molybdenum disulfide nanoscale twins to improve its dispersibility in polymeric matrix；From the angle of MOLECULE DESIGN, at molybdenum bisuphide sheet surfaces grafting organic fire-retardant and carrying inorganic metal compound nanoparticles, complex functionality molybdenum bisuphide material.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of antioxidation nylon mold materials and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of antioxidation nylon mold materials, it is made up of the raw material of following weight parts:
Chitosan 0.3-1, nylon66 fiber 100-130, dimethylformamide 110-140, molybdenum bisuphide 4-6, lithium chloride 0.1-0.2, polystyrene 2-3, glass fibre 20-30, Oleum Verniciae fordii 1-2, cetyl trimethylammonium bromide 0.7-1, paranitrophenol 0.6-1, adipic acid propanediol polyester 3-4, calcium mahogany sulfonate 1-2, antimony oxide 1-3, saturated octadecanoyl amine 0.3-0.6, antioxidant 1010 0.1-0.2, barium stearate 2-3.
The preparation method of a kind of described antioxidation nylon mold materials, comprises the following steps:
(1) above-mentioned lithium chloride is taken, join in the deionized water of its weight 800-1000 times, stirring and dissolving, add above-mentioned molybdenum bisuphide, supersound process 1-2 hour, ultrasonic power is 300-400w, stands 40-52 hour, filters, take the 30-40% of above-mentioned dimethylformamide weight, add the above-mentioned precipitation being filtrated to get, disperse 5-7 minute under the rotating speed that 1500-1600/ divides, molybdenum bisuphide suspension must be peeled off；
(2) by above-mentioned cetyl trimethylammonium bromide, chitosan mixing, join in the deionized water of compound weight 100-120 times, stir, obtain lysate；
(3) above-mentioned antimony oxide is joined in the deionized water of its weight 40-50 times, under stirring condition, add above-mentioned saturated octadecanoyl amine, rise high-temperature and be 60-70 DEG C, add antioxidant 1010, insulated and stirred 10-17 minute, obtain antioxidation emulsion；
(4) above-mentioned stripping molybdenum bisuphide suspension is heated to 30-40 DEG C, drip above-mentioned lysate, insulation reaction 7-8 hour after dropping, add above-mentioned antioxidation emulsion, 4000-5000 rev/min is stirred 7-10 minute, filters, and precipitation is used the acetum of 15-20%, absolute ethanol washing 3-4 time respectively, it is dried 20-26 hour at 60-65 DEG C, obtains organically-modified molybdenum bisuphide；
(5) take the 30-40% of residue dimethylformamide weight, add polystyrene, stir；
(6) above-mentioned paranitrophenol is joined in the dehydrated alcohol of its weight 10-18 times, stir, add calcium mahogany sulfonate, slowly rise high-temperature and be 70-80 DEG C, the sodium hydroxide of dropping 3-5mol/l, regulation pH is 10-13, insulated and stirred 5-9 minute, adding barium stearate, stirring, to room temperature, obtains premix material；
(7) above-mentioned organically-modified molybdenum bisuphide is taken, join in remaining dimethylformamide, ultrasonic disperse 3-4 hour, add the dimethyl formamide solution of above-mentioned polystyrene, stirring mixing 10-15 hour, pour in polytetrafluoroethylcontainer container, send in the baking oven of 100-105 DEG C and be dried 20-25 hour, raise oven temperature and be 130-135 DEG C, continue to be dried 10-13 hour, discharging, pulverizes the solid content obtained, obtains modified composite material；
(8) above-mentioned modified composite material is joined in premix material, stir, add the 10-15% of above-mentioned nylon66 fiber weight, preheat 3-5 minute at 100-110 DEG C, mix with remaining each raw material, stir, send in injection machine, adding heat fusing, be injected in mould by nozzle by the fluid after melted, the initial temperature of mould is maintained at 130-150 DEG C, after injection molding under 80-90MPa pressurize 1-2s, cooling, the demoulding, obtain described nylon mold materials.
nullThe invention have the advantage that the machine modified molybdenum disulfide that the present invention adds can well be dispersed in polymeric matrix，And define uniform network structure between polymer molecular chain，Effectively limit the motion of polymer molecular chain，Delay the thermal degradation of polymer molecular chain，The two-dimensional nano lamellar structure adding molybdenum bisuphide self can reduce conduction of heat，Therefore the heat stability of finished-product material is effectively raised，Molybdenum bisuphide can discharge non-flammable gases sulfur dioxide in thermal degradation process simultaneously，Good diluting effect can be played，Thus improve fire resistance，And finished product burning during molybdenum bisuphide to pyrolysis and combustion process in breeze be formed with facilitation，Combustion heat release amount and thermal decomposition product are equally played good iris action by thick and heavy and closely knit layer of charcoal，Therefore the finished-product material of the present invention has good heat stability and fire resistance，The material of the present invention has good antioxygenic property，Service life is long，Combination property is superior.
Detailed description of the invention
A kind of antioxidation nylon mold materials, it is made up of the raw material of following weight parts:
Chitosan 0.3, nylon66 fiber 100, dimethylformamide 110, molybdenum bisuphide 4, lithium chloride 0.1, polystyrene 2, glass fibre 20, Oleum Verniciae fordii 1, cetyl trimethylammonium bromide 0.7, paranitrophenol 0.6, adipic acid propanediol polyester 3, calcium mahogany sulfonate 1, antimony oxide 1, saturated octadecanoyl amine 0.3, antioxidant 1010 0.1, barium stearate 2.
The preparation method of a kind of described antioxidation nylon mold materials, comprises the following steps:
(1) above-mentioned lithium chloride is taken, join in the deionized water of its weight 800 times, stirring and dissolving, add above-mentioned molybdenum bisuphide, supersound process 1 hour, ultrasonic power is 300w, stands 40 hours, filters, take the 30% of above-mentioned dimethylformamide weight, add the above-mentioned precipitation being filtrated to get, disperse 5 minutes under the rotating speed of 1500/ point, molybdenum bisuphide suspension must be peeled off；
(2) by above-mentioned cetyl trimethylammonium bromide, chitosan mixing, join in the deionized water of compound weight 100 times, stir, obtain lysate；
(3) being joined by above-mentioned antimony oxide in the deionized water of its weight 40 times, add above-mentioned saturated octadecanoyl amine under stirring condition, rising high-temperature is 60 DEG C, adds antioxidant 1010, insulated and stirred 10 minutes, obtains antioxidation emulsion；
(4) above-mentioned stripping molybdenum bisuphide suspension is heated to 30 DEG C, drip above-mentioned lysate, insulation reaction 7 hours after dropping, add above-mentioned antioxidation emulsion, 4000 revs/min are stirred 7 minutes, filter, by precipitation respectively with 15% acetum, absolute ethanol washing 3 times, it is dried 20 hours at 60 DEG C, obtains organically-modified molybdenum bisuphide；
(5) take the 30% of residue dimethylformamide weight, add polystyrene, stir；
(6) being joined by above-mentioned paranitrophenol in the dehydrated alcohol of its weight 10 times, stir, add calcium mahogany sulfonate, slowly rising high-temperature is 70 DEG C, the sodium hydroxide of dropping 3mol/l, regulation pH is 10, insulated and stirred 5 minutes, adding barium stearate, stirring, to room temperature, obtains premix material；
(7) above-mentioned organically-modified molybdenum bisuphide is taken, join in remaining dimethylformamide, ultrasonic disperse 3 hours, add the dimethyl formamide solution of above-mentioned polystyrene, stirring mixing 10 hours, pouring in polytetrafluoroethylcontainer container, send in the baking oven of 100 DEG C and be dried 20 hours, raising oven temperature is 130 DEG C, continue to be dried 10 hours, discharging, pulverizes the solid content obtained, obtains modified composite material；
(8) above-mentioned modified composite material is joined in premix material, stir, add the 10% of above-mentioned nylon66 fiber weight, preheat 3 minutes at 100 DEG C, mix with remaining each raw material, stir, send in injection machine, adding heat fusing, be injected in mould by nozzle by the fluid after melted, the initial temperature of mould is maintained at 130 DEG C, after injection molding under 80MPa pressurize 1s, cooling, the demoulding, obtain described nylon mold materials.
The performance detection of the mould prepared with material of the present invention:
Appearance test:
The defects such as bubble-free, shrinkage cavity, surface indentation and wall unevenness are even, solid colour；
Ballistic work/J 23-40 DEG C: crack-free.
Claims (2)
1. an antioxidation nylon mold materials, it is characterised in that it is made up of the raw material of following weight parts:
Chitosan 0.3-1, nylon66 fiber 100-130, dimethylformamide 110-140, molybdenum bisuphide 4-6, lithium chloride 0.1-0.2, polystyrene 2-3, glass fibre 20-30, Oleum Verniciae fordii 1-2, cetyl trimethylammonium bromide 0.7-1, paranitrophenol 0.6-1, adipic acid propanediol polyester 3-4, calcium mahogany sulfonate 1-2, antimony oxide 1-3, saturated octadecanoyl amine 0.3-0.6, antioxidant 1010 0.1-0.2, barium stearate 2-3.
2. the preparation method of an antioxidation nylon mold materials as claimed in claim 1, it is characterised in that comprise the following steps:
(1) above-mentioned lithium chloride is taken, join in the deionized water of its weight 800-1000 times, stirring and dissolving, add above-mentioned molybdenum bisuphide, supersound process 1-2 hour, ultrasonic power is 300-400w, stands 40-52 hour, filters, take the 30-40% of above-mentioned dimethylformamide weight, add the above-mentioned precipitation being filtrated to get, disperse 5-7 minute under the rotating speed that 1500-1600/ divides, molybdenum bisuphide suspension must be peeled off；
(2) by above-mentioned cetyl trimethylammonium bromide, chitosan mixing, join in the deionized water of compound weight 100-120 times, stir, obtain lysate；
(3) above-mentioned antimony oxide is joined in the deionized water of its weight 40-50 times, under stirring condition, add above-mentioned saturated octadecanoyl amine, rise high-temperature and be 60-70 DEG C, add antioxidant 1010, insulated and stirred 10-17 minute, obtain antioxidation emulsion；
(4) above-mentioned stripping molybdenum bisuphide suspension is heated to 30-40 DEG C, drip above-mentioned lysate, insulation reaction 7-8 hour after dropping, add above-mentioned antioxidation emulsion, 4000-5000 rev/min is stirred 7-10 minute, filters, and precipitation is used the acetum of 15-20%, absolute ethanol washing 3-4 time respectively, it is dried 20-26 hour at 60-65 DEG C, obtains organically-modified molybdenum bisuphide；
(5) take the 30-40% of residue dimethylformamide weight, add polystyrene, stir；
(6) above-mentioned paranitrophenol is joined in the dehydrated alcohol of its weight 10-18 times, stir, add calcium mahogany sulfonate, slowly rise high-temperature and be 70-80 DEG C, the sodium hydroxide of dropping 3-5mol/l, regulation pH is 10-13, insulated and stirred 5-9 minute, adding barium stearate, stirring, to room temperature, obtains premix material；
(7) above-mentioned organically-modified molybdenum bisuphide is taken, join in remaining dimethylformamide, ultrasonic disperse 3-4 hour, add the dimethyl formamide solution of above-mentioned polystyrene, stirring mixing 10-15 hour, pour in polytetrafluoroethylcontainer container, send in the baking oven of 100-105 DEG C and be dried 20-25 hour, raise oven temperature and be 130-135 DEG C, continue to be dried 10-13 hour, discharging, pulverizes the solid content obtained, obtains modified composite material；
(8) above-mentioned modified composite material is joined in premix material, stir, add the 10-15% of above-mentioned nylon66 fiber weight, preheat 3-5 minute at 100-110 DEG C, mix with remaining each raw material, stir, send in injection machine, adding heat fusing, be injected in mould by nozzle by the fluid after melted, the initial temperature of mould is maintained at 130-150 DEG C, after injection molding under 80-90MPa pressurize 1-2s, cooling, the demoulding, obtain described nylon mold materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610275879.XA CN105820563A (en) | 2016-04-29 | 2016-04-29 | Antioxidant nylon mould material and preparation method thereof |
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| CN201610275879.XA CN105820563A (en) | 2016-04-29 | 2016-04-29 | Antioxidant nylon mould material and preparation method thereof |
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| CN105820563A true CN105820563A (en) | 2016-08-03 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483808A (en) * | 2012-06-11 | 2014-01-01 | 辽宁辽杰科技有限公司 | Composite thermoplastic resin mould material, preparation method thereof, mould and manufacturing method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483808A (en) * | 2012-06-11 | 2014-01-01 | 辽宁辽杰科技有限公司 | Composite thermoplastic resin mould material, preparation method thereof, mould and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周克清: "典型聚合物基二硫化钼纳米复合材料的制备及其热稳定性与燃烧性能的研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
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Application publication date: 20160803 |
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