CN104262957A - Low-water absorption high-rigidity nylon composite material and preparation method thereof - Google Patents
Low-water absorption high-rigidity nylon composite material and preparation method thereof Download PDFInfo
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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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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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Abstract
The invention relates to the technical field of high polymer materials and in particular relates to a low-water absorption high-rigidity nylon composite material and a preparation method thereof. The low-water absorption high-rigidity nylon composite material consists of the following raw materials in percentage by weight: 30-45 percent of PA66 resin, 5-25 percent of PA6T resin, 40-60 percent of glass fibers, 0.1-2.0 percent of antioxidant, 0.1-1.0 percent of processing aids and 0.1-2.0 percent of coupling agent. The PA6T raw materials are added into PA66 engineering plastics for modification, so that the characteristics of the modified nylon composite material are superior to those of general PA66 engineering plastics, the cost of the nylon composite material is lower than that of pure high-temperature nylon engineering plastics, and the prepared nylon composite material has the characteristics of low water absorption rate and high rigidity.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly relate to a kind of low water absorption high rigidity nylon composite materials and preparation method thereof.
Background technology
The application of nylon has history quite remote, and its application is the earliest in fiber, has multinomial excellent specific property, to the 1950's, grows up rapidly with the market of engineering plastics substituted metal, the nylon of all size is developed successively and practical.
At the end of last century because of the plastic of electronics, motor part, auto parts, further requirement is had to the performance of nylon, especially high temperature resistant aspect, within 1990, high-temperature resistant nylon PA46 is realized industrialization by DSM first, fill up in general engineering plastic if polyamide 6, polyamide 66, polyester and very-high performance material are as LCP, blank between polysulfones and PEEK, so far pulled open the climax of high-temperature nylon research and development application, new variety PA6T, PPA, HTN, PA9T constantly arise at the historic moment and move towards market-ripe in recent years.The excellent properties of high-temperature nylon brings client many important benefits, as the more characteristic such as long life, high reliability and low moisture absorption, at automobile with electricly industrially approved widely and apply.Wherein PA6T is the Typical Representative in high-temperature nylon, is to be formed by hexanediamine and terephthalic acid polycondensation.Pure PA6T fusing point is up to 370 DEG C, and nylon there occurs degraded at this temperature, cannot carry out thermoplastic shaping, thus the PA6T of market circulation be all through with other monomer copolymerization after reduce multipolymer or the mixture of fusing point.PA6T introduces a large amount of phenyl ring on the basis of aliphatic chain, and compared with traditional PA6, PA66, PA6T has higher Tg, low water absorption, dimensional stability and high heat resistance etc.
High-temperature nylon has many merits, but at present production technology is rest in the large label in main each world, causes high-temperature nylon raw materials cost comparatively can not to be in any more, makes general plastic molding and processing plant, across its field of foot, will there be the problem that cost is higher in injection factory.
Summary of the invention
The object of the invention is for deficiency of the prior art, a kind of low water absorption high rigidity nylon composite materials and preparation method thereof is provided, in PA66 engineering plastics, add PA6T raw material carry out modification, make the excellent of modified nylon composite materials in general PA66 engineering plastics, and cost is lower than pure high-temperature nylon engineering plastics, obtained nylon composite materials has the feature of low water absorption, high rigidity concurrently.
Object of the present invention is achieved through the following technical solutions.
A kind of low water absorption high rigidity nylon composite materials, is made up of the raw material of following weight percent:
PA66 resin 30-45%
PA6T resin 5-25%
Glass fibre 40-60%
Oxidation inhibitor 0.1-2.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-2.0%
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; Processing aid is one or more mixture of the two ethylene hard fatty acids acid amides of N, N'-, stearic amide, paraffin, polyethylene wax, Poly Propylene Wax, siloxanes, silicone powder; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane.
Glass fibre of the present invention is through the alkali free glass fibre that coupling agent treatment is crossed, and the fiberglass surfacing of inorganic materials can be coated to one deck OH base by coupling agent, increases the affinity be combined with organism, thus is conducive to the physical strength of Reinforced Nylon matrix material.
Described oxidation inhibitor is that antioxidant 1010 and irgasfos 168 carry out composite mixture, and ratio is 1:1.Wherein antioxidant 168 is organophosphite, there is the characteristics such as low volatilization and hydrolysis, resin can be helped in the course of processing to support oxidation resistant problem, and hindered phenol antioxidant 1010 to provide processing stability, prevent the thermo-cracking of resin in the course of processing, antioxidant 1010 and irgasfos 168 carry out composite with the mass ratio of 1:1, guarantee that oxidation inhibitor has low volatilization, hydrolysis concurrently, anti-oxidant, processing is stable and the function of anti-thermo-cracking, is conducive to the processing characteristics promoting nylon composite materials.
Described coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane, is the one of silane coupling agent.The process through coupling agent is understood on glass fibre surface in making processes, but the cross section of glass fiber bundle after disconnected cutting does not have coupling agent composition.The additional coupling agent of this programme is exactly want reinforcing glass fiber cross section, and main application is the bond of reinforcing glass fiber Reinforced Nylon resin and glass fibre, and physical strength is promoted.
Preferably, a kind of low water absorption high rigidity nylon composite materials, is made up of the raw material of following weight percent:
PA66 resin 30-40%
PA6T resin 5-15%
Glass fibre 45-55%
Oxidation inhibitor 0.1-2.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-2.0%.
More preferably, a kind of low water absorption high rigidity nylon composite materials, is made up of the raw material of following weight percent:
PA66 resin 30-40%
PA6T resin 5-15%
Glass fibre 45-55%
Oxidation inhibitor 0.1-1.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-1.0%.
Still more preferably, a kind of low water absorption high rigidity nylon composite materials, is made up of the raw material of following weight percent:
PA66 resin 30-35%
PA6T resin 7-15%
Glass fibre 45-55%
Oxidation inhibitor 0.1-1.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-1.0%.
Preferably, the mixture that the ratio of described processing aid to be silicone powder and stearate class with mass ratio be 7:3 is composite.Wherein, silicone powder can improve plastic working mobility and release property, and reduces the moment of torsion of screw rod, and reduce equipment attrition, stearate class can be beneficial to the intermolecular lubricant effect of resin, and molecule also can be helped to flow, and improves its extrusion amount.Silicone powder and stearate class take mass ratio as the advantage that the composite obtained processing aid of ratio of 7:3 has processing fluidity, release property, lubrication, raising extrusion amount concurrently, are conducive to the rigidity promoting nylon composite materials, reduce the water-intake rate of nylon composite materials.
Preferably, the relative viscosity of described PA66 resin is 2.5-2.7, flow index is 110-140 g/10min under 275 DEG C/5KG condition.
Preferably, the fusing point of described PA6T resin is 305-310 DEG C, Tg point is 105-135 DEG C.
Particularly, PA6T resin is one or both the mixture in the ARLEN C2000 of the Zytel HTN501 of E.I.Du Pont Company, Mitsui company.The molecular structure of E.I.Du Pont Company Zytel HTN501 is made up of 6T/DT, fusing point at 310 DEG C, Tg point 135 DEG C.The molecular structure of Mitsui ARLEN C2000 is made up of 6T/66, fusing point at 305 DEG C, Tg point 105 DEG C.Because the fusing point of two kinds of raw materials is close, therefore identical processing conditions can be used to carry out extrusion blending.Add PA6T raw material in PA66 engineering plastics system and carry out modification, make the excellent of modified engineered plastic in general PA66 engineering plastics, and cost is lower than pure high-temperature nylon engineering plastics.
Preferably, the mass ratio of described oxidation inhibitor, described processing aid and described coupling agent is 1:1:1.
A preparation method for low water absorption high rigidity nylon composite materials, comprises the following steps:
The first step: weigh raw material by weight percentage;
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 2-4min;
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization, glass fibre and coupling agent are entered forcing machine by side pan feeding machine, again through after tie rod, tank water-cooled, gas blower dries up rear haulage and completes pelletizing to stock cutter, processing temperature is 290-310 DEG C, and screw speed is 270-330rpm rpm.
Preferably, in the 3rd step, the extrusion temperature of forcing machine is divided into 10 sections, one section is 260-290 DEG C, and two sections is 280-310 DEG C, and three sections is 290-310 DEG C, four sections is 290-310 DEG C, and five sections is 280-300 DEG C, and six sections is 280-290 DEG C, seven sections is 270-290 DEG C, and eight sections is 270-290 DEG C, and nine sections is 270-290 DEG C, ten sections is 280-300 DEG C, two sections of temperature are higher than one section of temperature, and five sections of temperature are lower than four sections of temperature, and ten sections of temperature are higher than nine sections of temperature.
Twin screw extruder temperature variation feature mainly front-end temperature is drawn high and is enable the uniform melting mixing of various resin, stage casing temperature reduce mainly glass fibre and coupling agent add mixing time internal friction heat raise, avoid temperature excessively to surpass and cause resin cracking, back segment temperature starts again to raise the mobility being conducive to promoting material, reduce the difficulty that material goes out nib, improve processibility, guarantee that various homogenize material disperses, guarantee nylon composite materials stay in grade.
Beneficial effect of the present invention:
(1) in the market according to there being high-temperature nylon raw material miscellaneous, to PA6T be imported in nylon engineering plastic with melting blending method, the high-temperature nylon that fusing point is lower need be selected, to avoid in the course of processing, because of higher process temperatures, causing the cracking of general nylon raw material to be lost efficacy.The present invention is by blending high-temperature nylon in PA66/GF system in the mode of blending, under D570-24hr condition, the water-intake rate of nylon composite materials can be reduced to about 0.2%, water-intake rate is 1/3 of conventional nylon material water-intake rate, and the nylon composite materials that the present invention obtains also helps lifting basic physical properties intensity, makes physical property retention rate higher.
(2) experimental result confirms, in PA66/GF engineering plastics specification, import the basic physical properties that high-temperature nylon PA6T can improve engineering plastics is feasible, and cost can far below high-temperature nylon engineering plastics, the quotation of PA6T high-temperature nylon raw material is about 9-10 dollar, the preparation cost of nylon composite materials of the present invention is about 4-5 dollar, production cost is only the half of high-temperature nylon raw materials cost, and the nylon composite materials that the present invention obtains can be applicable to industrial electrical equipment product and traditional-handwork tool industry, this nylon composite materials successfully replaces PA66/GF product, and be used in cable industry it the anchor clamp needing high rigid requirements, the finished product test of nylon composite materials of the present invention is not less than 1550N, and flexural strength is greater than 55000 psi.
Embodiment
The invention will be further described with the following Examples.
embodiment 1.
The preparation method of the low water absorption high rigidity nylon composite materials of the present embodiment, comprises the following steps:
The first step: weigh raw material by weight percentage: PA66 resin 31.6% (in advance under 120 ° of C dry 3 hours), PA6T resin 22.5% (in advance under 120 ° of C dry 3 hours), glass fibre 45%, oxidation inhibitor 0.3%, processing aid 0.3%, coupling agent 0.3%.
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 2min.
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization, the glass fibre taken and coupling agent are entered forcing machine by side pan feeding machine, again through after tie rod, tank water-cooled, gas blower dries up rear haulage and completes pelletizing to stock cutter, and screw speed is 270rpm.The extrusion temperature of forcing machine is divided into 10 sections, and one section is 280 DEG C, and two sections is 300 DEG C, and three sections is 300 DEG C, and four sections is 300 DEG C, and five sections is 290 DEG C, and six sections is 290 DEG C, and seven sections is 290 DEG C, and eight sections is 290 DEG C, and nine sections is 290 DEG C, and ten sections is 300 DEG C.
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane; The mixture that the ratio of described processing aid to be silicone powder and stearate class with mass ratio be 7:3 is composite; The relative viscosity of described PA66 is 2.5, flow index is 140g/10min under 275 DEG C/5KG condition; The fusing point of described PA6T resin is 305 DEG C, Tg point is 105 DEG C.
embodiment 2.
The preparation method of the low water absorption high rigidity nylon composite materials of the present embodiment, comprises the following steps:
The first step: weigh raw material by weight percentage: PA66 34.8% (in advance under 120 ° of C dry 3 hours), PA6T 14.0% (in advance under 120 ° of C dry 3 hours), glass fibre 50.0%, silane coupling agent 0.4%, oxidation inhibitor 0.4%, processing aid 0.4%.
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 3min.
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization; the glass fibre taken and coupling agent are entered forcing machine by side pan feeding machine; again through after tie rod, tank water-cooled; gas blower dries up rear haulage and completes pelletizing to stock cutter, setting extruder temperature: a section: 290 DEG C; Two sections: 310 DEG C; Three sections: 310 DEG C, four sections: 310 DEG C; Five sections: 300 DEG C; Six sections: 290 DEG C; Seven sections: 290 DEG C; Eight sections: 290 DEG C; Nine sections: 290 DEG C; Tenth section: 300 DEG C.Screw speed: 280rpm.
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; The mixture that processing aid to be the two ethylene hard fatty acids acid amides of N, N'-and stearic amide with mass ratio be 2:1 is composite; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane; The relative viscosity of described PA66 is 2.5, flow index is 130 g/10min under 275 DEG C/5KG condition; The fusing point of described PA6T resin is 306 DEG C, Tg point is 110 DEG C.
embodiment 3.
The preparation method of the low water absorption high rigidity nylon composite materials of the present embodiment, comprises the following steps:
The first step: PA66 39.0% (in advance under 120 ° of C dry 3 hours), PA6T 5.0%, glass fibre 55.0%, silane coupling agent 0.5%, oxidation inhibitor 0.3%, processing aid 0.2%.
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 4min.
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization; the glass fibre taken and coupling agent are entered forcing machine by side pan feeding machine; again through after tie rod, tank water-cooled; gas blower dries up rear haulage and completes pelletizing to stock cutter, setting extruder temperature: a section: 290 DEG C; Two sections: 310 DEG C; Three sections: 310 DEG C, four sections: 310 DEG C; Five sections: 300 DEG C; Six sections: 290 DEG C; Seven sections: 290 DEG C; Eight sections: 290 DEG C; Nine sections: 290 DEG C; Tenth section: 300 DEG C.Screw speed: 290rpm.
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; The mixture that processing aid to be paraffin, polyethylene wax, Poly Propylene Wax with mass ratio be 1:1:1 is composite; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane; The relative viscosity of described PA66 is 2.6, flow index is 120 g/10min under 275 DEG C/5KG condition; The fusing point of described PA6T resin is 308 DEG C, Tg point is 120 DEG C.
embodiment 4.
The preparation method of the low water absorption high rigidity nylon composite materials of the present embodiment, comprises the following steps:
The first step: weigh raw material by weight percentage: PA66 resin 31.0% (in advance under 120 ° of C dry 3 hours), PA6T resin 13% (in advance under 120 ° of C dry 3 hours), glass fibre 55%, oxidation inhibitor 0.2%, processing aid 0.3%, coupling agent 0.5%.
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 2.5min.
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization, the glass fibre taken and coupling agent are entered forcing machine by side pan feeding machine, again through after tie rod, tank water-cooled, gas blower dries up rear haulage and completes pelletizing to stock cutter, and screw speed is 300rpm.The extrusion temperature of forcing machine is divided into 10 sections, and one section is 270 DEG C, and two sections is 280 DEG C, and three sections is 290 DEG C, and four sections is 290 DEG C, and five sections is 290 DEG C, and six sections is 290 DEG C, and seven sections is 290 DEG C, and eight sections is 290 DEG C, and nine sections is 290 DEG C, and ten sections is 300 DEG C.
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; Processing aid is silicone powder; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane; The relative viscosity of described PA66 is 2.6, flow index is 115 g/10min under 275 DEG C/5KG condition; The fusing point of described PA6T resin is 309 DEG C, Tg point is 125 DEG C.
embodiment 5.
The preparation method of the low water absorption high rigidity nylon composite materials of the present embodiment, comprises the following steps:
The first step: weigh raw material by weight percentage: PA66 resin 23.25% (in advance under 120 ° of C dry 3 hours), PA6T resin 23.25% (in advance under 120 ° of C dry 3 hours), glass fibre 52%, oxidation inhibitor 0.2%, processing aid 0.3%, coupling agent 1.0%.
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 3.5min.
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization, the glass fibre taken and coupling agent are entered forcing machine by side pan feeding machine, again through after tie rod, tank water-cooled, gas blower dries up rear haulage and completes pelletizing to stock cutter, processing temperature is 290-310 DEG C, and screw speed is 315rpm.The extrusion temperature of forcing machine is divided into 10 sections, and one section is 270 DEG C, and two sections is 280 DEG C, and three sections is 290 DEG C, and four sections is 290 DEG C, and five sections is 280 DEG C, and six sections is 280 DEG C, and seven sections is 290 DEG C, and eight sections is 290 DEG C, and nine sections is 290 DEG C, and ten sections is 300 DEG C.
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; Processing aid is the two ethylene hard fatty acids acid amides of N, N'-; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane; The relative viscosity of described PA66 is 2.7, flow index is 110g/10min under 275 DEG C/5KG condition; The fusing point of described PA6T resin is 310 DEG C, Tg point is 135 DEG C.
comparative example 1.
Raw materials by weight meter, PA66 44.0% (in advance under 120 ° of C dry 3 hours), glass fibre 55.0%, silane coupling agent 0.5%, oxidation inhibitor 0.2%, processing aid 0.3%, churning time is 4min; Then will mix material to put into twin screw extruder and carry out extruding pelletization; Setting extruder temperature: one section: 260 DEG C; Two sections: 280 DEG C; Three sections: 290 DEG C, four sections: 290 DEG C; Five sections: 280 DEG C; Six sections: 280 DEG C; Seven sections: 270 DEG C; Eight sections: 270 DEG C; Nine sections: 270 DEG C; Tenth section: 280 DEG C.Screw speed: 330rpm.
Every physical index of the nylon composite materials of embodiments of the invention 1-5 and comparative example 1, as shown in the table:
General nylon product has the characteristic of moisture absorption, and therefore nylon product physical property detects and has over dry (DAM), regulates rear (Conditioned) two kinds of physical property to compare.As can be seen from the above data, the flexural strength of the nylon composite materials that the present invention obtains under over dry condition is higher, flexural strength is 54650-58126 psi, injection finished product compressive property is good, finished product test is not less than 1550N, heat-drawn wire is high, and water-intake rate is low to moderate 0.17-0.25%, and nylon composite materials of the present invention flexural strength after adjustment, tensile strength are also greater than traditional nylon material.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. a low water absorption high rigidity nylon composite materials, is characterized in that: be made up of the raw material of following weight percent:
PA66 resin 30-45%
PA6T resin 5-25%
Glass fibre 40-60%
Oxidation inhibitor 0.1-2.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-2.0%
Wherein, the mixture that the ratio of oxidation inhibitor to be antioxidant 1010 and irgasfos 168 with mass ratio be 1:1 is composite; Processing aid is one or more mixture of the two ethylene hard fatty acids acid amides of N, N'-, stearic amide, paraffin, polyethylene wax, Poly Propylene Wax, siloxanes, silicone powder; Coupling agent is N-aminoethyl-3-aminopropyltriethoxy dimethoxysilane.
2. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: be made up of the raw material of following weight percent:
PA66 resin 30-40%
PA6T resin 5-15%
Glass fibre 45-55%
Oxidation inhibitor 0.1-2.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-2.0%.
3. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: be made up of the raw material of following weight percent:
PA66 resin 30-40%
PA6T resin 5-15%
Glass fibre 45-55%
Oxidation inhibitor 0.1-1.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-1.0%.
4. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: be made up of the raw material of following weight percent:
PA66 resin 30-35%
PA6T resin 7-15%
Glass fibre 45-55%
Oxidation inhibitor 0.1-1.0%
Processing aid 0.1-1.0%
Coupling agent 0.1-1.0%.
5. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: the mixture that the ratio of described processing aid to be silicone powder and stearate class with mass ratio be 7:3 is composite.
6. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: the relative viscosity of described PA66 resin is 2.5-2.7, flow index is 110-140 g/10min under 275 DEG C/5KG condition.
7. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: the fusing point of described PA6T resin is 305-310 DEG C, Tg point is 105-135 DEG C.
8. a kind of low water absorption high rigidity nylon composite materials according to claim 1, is characterized in that: the mass ratio of described oxidation inhibitor, described processing aid and described coupling agent is 1:1:1.
9. the preparation method of a kind of low water absorption high rigidity nylon composite materials described in claim 1-8 any one, is characterized in that: comprise the following steps:
The first step: weigh raw material by weight percentage;
Second step: PA66 resin, PA6T resin, processing aid and antioxidant are mixed in homogenizer, churning time is 2-4min;
3rd step: the material mixed by second step is put into twin screw extruder and carried out extruding pelletization, glass fibre and coupling agent are entered forcing machine by side pan feeding machine, again through after tie rod, tank water-cooled, gas blower dries up rear haulage and completes pelletizing to stock cutter, processing temperature is 290-310 DEG C, and screw speed is 270-330rpm.
10. the preparation method of a kind of low water absorption high rigidity nylon composite materials according to claim 9, it is characterized in that: in described 3rd step, the extrusion temperature of forcing machine is divided into 10 sections, one section is 260-290 DEG C, two sections is 280-310 DEG C, three sections is 290-310 DEG C, four sections is 290-310 DEG C, five sections is 280-300 DEG C, six sections is 280-290 DEG C, seven sections is 270-290 DEG C, eight sections is 270-290 DEG C, nine sections is 270-290 DEG C, ten sections is 280-300 DEG C, two sections of temperature are higher than one section of temperature, five sections of temperature are lower than four sections of temperature, ten sections of temperature are higher than nine sections of temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410493357.8A CN104262957A (en) | 2014-09-24 | 2014-09-24 | Low-water absorption high-rigidity nylon composite material and preparation method thereof |
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| CN201410493357.8A CN104262957A (en) | 2014-09-24 | 2014-09-24 | Low-water absorption high-rigidity nylon composite material and preparation method thereof |
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Cited By (12)
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| CN105400190A (en) * | 2015-11-27 | 2016-03-16 | 昆山幻彩塑胶科技有限公司 | High-rigidity polyamide reinforced material |
| CN106366653A (en) * | 2016-08-29 | 2017-02-01 | 安徽省康利亚股份有限公司 | Damp and heat resistant nylon cable sheath material for tropical zone and preparation method thereof |
| CN106751802A (en) * | 2016-12-17 | 2017-05-31 | 慈溪市凯澳塑料制品有限公司 | A kind of automotive plastic parts modified nylon materials and its preparation technology |
| CN109021561A (en) * | 2018-07-19 | 2018-12-18 | 广东顺德顺炎新材料股份有限公司 | Weather-proof general iron track gauge block of material of glass fiber reinforced PA66 and preparation method thereof |
| CN109135274A (en) * | 2018-07-27 | 2019-01-04 | 广东顺德顺炎新材料股份有限公司 | A kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material and preparation method thereof |
| CN109181292A (en) * | 2018-07-19 | 2019-01-11 | 广东顺德顺炎新材料股份有限公司 | A kind of glass fiber reinforced PA66 high-speed railway rail baseplate material and preparation method thereof |
| CN109553965A (en) * | 2017-09-25 | 2019-04-02 | 北京旭阳科技有限公司 | Nylon composite materials and preparation method thereof |
| CN109666291A (en) * | 2018-12-07 | 2019-04-23 | 厦门德丰行塑胶工业有限公司 | A kind of low water suction nylon 6 composite material of high rigidity |
| CN111718576A (en) * | 2019-03-19 | 2020-09-29 | 上海术博新材料技术有限公司 | High-strength friction-resistant nylon composite material and preparation method thereof |
| CN111925646A (en) * | 2020-07-06 | 2020-11-13 | 湖北大学 | Hot water resistant nylon composite material, preparation method thereof and molded part |
| CN112029264A (en) * | 2020-09-11 | 2020-12-04 | 广州辰东新材料有限公司 | High-rigidity long-chain nylon composite material and preparation method thereof |
| CN114027597A (en) * | 2021-11-15 | 2022-02-11 | 浙江华鑫拉链有限公司 | Preparation method of high-temperature-resistant nylon zipper |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400190A (en) * | 2015-11-27 | 2016-03-16 | 昆山幻彩塑胶科技有限公司 | High-rigidity polyamide reinforced material |
| CN106366653A (en) * | 2016-08-29 | 2017-02-01 | 安徽省康利亚股份有限公司 | Damp and heat resistant nylon cable sheath material for tropical zone and preparation method thereof |
| CN106751802A (en) * | 2016-12-17 | 2017-05-31 | 慈溪市凯澳塑料制品有限公司 | A kind of automotive plastic parts modified nylon materials and its preparation technology |
| CN109553965A (en) * | 2017-09-25 | 2019-04-02 | 北京旭阳科技有限公司 | Nylon composite materials and preparation method thereof |
| CN109181292B (en) * | 2018-07-19 | 2021-04-06 | 广东顺德顺炎新材料股份有限公司 | Glass fiber reinforced PA66 high-speed rail substrate material and preparation method thereof |
| CN109021561A (en) * | 2018-07-19 | 2018-12-18 | 广东顺德顺炎新材料股份有限公司 | Weather-proof general iron track gauge block of material of glass fiber reinforced PA66 and preparation method thereof |
| CN109181292A (en) * | 2018-07-19 | 2019-01-11 | 广东顺德顺炎新材料股份有限公司 | A kind of glass fiber reinforced PA66 high-speed railway rail baseplate material and preparation method thereof |
| CN109021561B (en) * | 2018-07-19 | 2021-04-06 | 广东顺德顺炎新材料股份有限公司 | Weather-proof glass fiber reinforced PA66 ordinary railway track gauge block material and preparation method thereof |
| CN109135274A (en) * | 2018-07-27 | 2019-01-04 | 广东顺德顺炎新材料股份有限公司 | A kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material and preparation method thereof |
| CN109135274B (en) * | 2018-07-27 | 2021-03-16 | 广东顺德顺炎新材料股份有限公司 | High-temperature-resistant glass fiber reinforced PA66 water chamber material and preparation method thereof |
| CN109666291A (en) * | 2018-12-07 | 2019-04-23 | 厦门德丰行塑胶工业有限公司 | A kind of low water suction nylon 6 composite material of high rigidity |
| CN109666291B (en) * | 2018-12-07 | 2021-09-03 | 厦门德丰行塑胶工业有限公司 | High-rigidity low-water-absorption nylon 6 composite material |
| CN111718576A (en) * | 2019-03-19 | 2020-09-29 | 上海术博新材料技术有限公司 | High-strength friction-resistant nylon composite material and preparation method thereof |
| CN111925646A (en) * | 2020-07-06 | 2020-11-13 | 湖北大学 | Hot water resistant nylon composite material, preparation method thereof and molded part |
| CN112029264A (en) * | 2020-09-11 | 2020-12-04 | 广州辰东新材料有限公司 | High-rigidity long-chain nylon composite material and preparation method thereof |
| CN112029264B (en) * | 2020-09-11 | 2023-01-20 | 广州辰东新材料有限公司 | High-rigidity long-chain nylon composite material and preparation method thereof |
| CN114027597A (en) * | 2021-11-15 | 2022-02-11 | 浙江华鑫拉链有限公司 | Preparation method of high-temperature-resistant nylon zipper |
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Owner name: JIANGSU JINLUN PLASTIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JINDE PLASTIC SCIENCE + TECHNOLOGY (DONGGUAN) CO., LTD. Effective date: 20150908 |
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