CN102766330B - Low-temperature-resistant ultra-toughness modified nylon alloy material and preparation method thereof - Google Patents
Low-temperature-resistant ultra-toughness modified nylon alloy material and preparation method thereof Download PDFInfo
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- CN102766330B CN102766330B CN201210240703.2A CN201210240703A CN102766330B CN 102766330 B CN102766330 B CN 102766330B CN 201210240703 A CN201210240703 A CN 201210240703A CN 102766330 B CN102766330 B CN 102766330B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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Abstract
The invention discloses a low-temperature-resistant ultra-toughness modified nylon alloy material and a preparation method thereof. The low-temperature-resistant ultra-toughness modified nylon alloy material is prepared from the following raw materials: PA (poly A) 66, PA6, a main flexibilizer, an auxiliary flexibilizer, a compatilizer, a main ultraviolet absorption agent, an auxiliary ultraviolet absorption agent, a main antioxidant, an auxiliary antioxidant and a lubricating agent. The preparation method comprises the following steps of: mixing the raw materials in a high mixing machine uniformly; putting the mixture into a dual-screw extrusion pelletizer for heating and fusing, vacuumizing, slicing and pelletizing; drying materials after pelletization in a vacuum box, so as to obtain the product granulate low-temperature-resistant ultra-toughness modified nylon alloy material provided by the invention. The product low-temperature-resistant ultra-toughness modified PA66 alloy material provided by the invention has high comprehensive performances and excellent temperature-resistant performance, achieves the advanced level of similar products abroad, can replace imported materials, and meets the high-quality requirement of the domestic market on the ultra-toughness PA66 alloy.
Description
Technical field
The present invention relates to a kind of nylon alloy material and preparation method thereof, particularly relate to a kind of low temperature resistant super tough modification of nylon alloy material and preparation method thereof.
Background technology
Nylon (polymeric amide) is as the wider a kind of engineering plastics of application, and it is pliable and tough, wear-resisting, physical strength is high.Meanwhile, polyamide (PA) belongs to crystalline high polymer, there will be sharp-pointed yield-point when being subject to tensile stress, and the increase stress along with strain rises gradually after yield-point.Therefore, the nylon of non-modified is applied to certain field, need to carry out modification to its ductility, notched Izod impact strength and low-temperature flexibility.
Existing Nylon In Toughening By Blending method mainly contains following several: 1) by with other lactan or its amino acid copolymerization; 2) by components such as rubber or elastomericss, come toughness reinforcing; 3) with core-shell polymer, come toughness reinforcing; 4) with containing the rubber toughened of reactive group; 5) with MALEIC ANHYDRIDE grafted ethene-acetate ethylene copolymer and poly mixture, make expanding material, with high density polyethylene(HDPE), do toughner and carry out modification; 6) directly with graft copolymer and the nylon blending of divinyl rubber and methyl methacrylate, prepare tenacity increased nylon; 7) simultaneously toughness reinforcing with MALEIC ANHYDRIDE grafting terpolymer EP rubber and styrene maleic anhydride copolymer.Although aforesaid method is the toughness of improved system to a certain extent, but all there is a general character difficult problem: the consistency between matrix and toughner is poor, be separated serious, poor ductility, the notched Izod impact strength of the nylon alloy after toughness reinforcing are low, and have the defect of complicated process of preparation, unstable product quality.
PA66(nylon) material be output maximum in five large general engineering plastic, kind at most, the base resin of the widest, the high comprehensive performance of purposes.Nylon material tough and hard wear resistant, resistance to solvent, resistance to bending, resistance to creep, the aspect performances such as electrical property are very outstanding, but the low temperature resistant toughness of PA66 material is not ideal enough, has therefore affected the application in outdoor application occasions such as railway equipment, trolley part, engineering machinery and sports equipments.For meeting the development need in these fields, need to carry out low temperature resistant super tough modification to PA66 material, increase its lower temperature resistance and flexility, meet the application of more areas.
Summary of the invention
The technical problem to be solved in the present invention is: for existing PA66(nylon) defect such as the low temperature resistant toughness that exists in the application of the outdoor application occasions such as railway equipment, trolley part, engineering machinery and sports equipment of material is not ideal enough, a kind of low temperature resistant super tough modification of nylon alloy material and preparation method thereof is provided.Low temperature resistant super tough modified Pa 66 alloys of product of the present invention are as a large kind of PA66 modification, mainly by adding thermoplastic polyolefin elastomer, the material such as metallocene-polyolefin and rubber elastomer, add maleic anhydride graft copolymerization polar group simultaneously, thereby the consistency between reinforced plastic PA66 material and toughening material, also change its low-temperature impact-resistant performance, add anti-photooxidation resistance agent, improve its weather resistance, with this, product of the present invention of preparation can be met at railway equipment, trolley part, in the application of the outdoor application such as engineering machinery and sports equipment occasion to low temperature resistant, the requirements at the higher level of toughness.
In order to address the above problem, the technical solution used in the present invention is:
The invention provides a kind of low temperature resistant super tough modification of nylon alloy material, with weight percentage, represent, the raw material of described low temperature resistant super tough modification of nylon alloy material consists of PA66 60～85%, PA6 2～20%, main toughner 6～30%, auxiliary toughner 1～10%, compatilizer 5～20%, main UV light absorber 0.2～1%, auxiliary UV light absorber 0.1～1%, primary antioxidant 0.1～1%, auxiliary anti-oxidant 0.1～1% and lubricant 0.2～2%.
According to above-mentioned low temperature resistant super tough modification of nylon alloy material, the raw material of described low temperature resistant super tough modification of nylon alloy material consists of PA66 70～75%, PA6 8～12%, main toughner 6～9%, auxiliary toughner 2～5%, compatilizer 5～8%, main UV light absorber 0.5～0.9%, auxiliary UV light absorber 0.2～0.3%, primary antioxidant 0.2～0.5%, auxiliary anti-oxidant 0.2～0.3% and lubricant 0.3～0.6%.
According to above-mentioned low temperature resistant super tough modification of nylon alloy material, the raw material of described low temperature resistant super tough modification of nylon alloy material consists of PA66 73%, PA6 10%, main toughner 7%, auxiliary toughner 3%, compatilizer 5%, main UV light absorber 0.8%, auxiliary UV light absorber 0.2%, primary antioxidant 0.3%, auxiliary anti-oxidant 0.2% and lubricant 0.5%.
According to above-mentioned low temperature resistant super tough modification of nylon alloy material, described main toughner is Thermoplastic Elastomer, Olefinic TPV or Thermoplastic Elastomer, Olefinic TPO; Described auxiliary toughner is thermoplastic elastomer TPE, thermoplastic polyurethane elastomer or ethylene/propylene copolymer rubbers; Described compatilizer is maleic anhydride grafted ethene-octene copolymer POE-g-MAH, maleic anhydride graft SIS/SEBS SEBS-g-MAH or maleic anhydride graft terpolymer EP rubber EPDM-g-MAH; Described main UV light absorber is ultraviolet absorbent uv-326; Described auxiliary UV light absorber is UV light absorber UV-9; Described primary antioxidant is antioxidant 1076,2,4 dihydroxyl benzophenone UV-0 or 2-(2-hydroxyl-3, the tertiary base phenyl of 5-bis-fourth)-5-chlorinated benzotriazole UV-327; Described auxiliary anti-oxidant is 2-mercaptobenzimidazole MB, triphenyl phosphite TPP, Tyox B DLTP or thio-2 acid 2 stearyl ester DSTP; Described lubricant is ethylene bis stearic acid amide, amine hydroxybenzene or stearic amide.
According to above-mentioned low temperature resistant super tough modification of nylon alloy material, described main toughner is Thermoplastic Elastomer, Olefinic TPV; Described auxiliary toughner is thermoplastic elastomer TPE; Described compatilizer is maleic anhydride grafted ethene-octene copolymer POE-g-MAH; Described main UV light absorber is ultraviolet absorbent uv-326; Described auxiliary UV light absorber is UV light absorber UV-9; Described primary antioxidant is antioxidant 1076; Described auxiliary anti-oxidant is 2-mercaptobenzimidazole MB; Described lubricant is ethylene bis stearic acid amide.
A preparation method for low temperature resistant super tough modification of nylon alloy material, described preparation method comprises the following steps:
A, first starting material PA66 and PA6 are dried in loft drier, bake out temperature is 90～110 ℃, and drying time is 2～4h;
B, starting material PA66, PA6 and other various starting material after drying according to the raw material composition preparation steps a of above-mentioned low temperature resistant super tough modification of nylon alloy material then, the various starting material of preparation are put into high-speed mixer and mix 5～12min, the rotating speed of high-speed mixer is 800～1000 turn/min, obtains mixture after high-speed mixing;
C, the mixture that step b is obtained drop into heating and melting in double-screw extruding pelletizing machine, vacuumize section granulation; material after granulation is dried in vacuum chamber; vacuum tightness is 0.01Mpa; drying temperature is 80 ℃; be 10h time of drying, after being dried, obtains the low temperature resistant super tough modification of nylon alloy material of product particle shape of the present invention.
According to the preparation method of above-mentioned low temperature resistant super tough modification of nylon alloy material; mixture described in step c drops into heating and melting in double-screw extruding pelletizing machine, vacuumizes section granulation; in this process, double-screw extruding pelletizing machine is respectively 205～210 ℃ from screw feed section to each section of temperature setting of head; 220～230 ℃; 240～250 ℃, 240～255 ℃, 230～235 ℃; vacuum tightness is 0.01Mpa, and screw speed is 110～130 turn/min.
According to the preparation method of above-mentioned low temperature resistant super tough modification of nylon alloy material, the Temperature Setting of the machine of double-screw extruding pelletizing described in step c is 230～290 ℃, and screw slenderness ratio L/D is 36～48:1.
positive beneficial effect of the present invention:
1, the low temperature resistant super tough PA66 alloy material of product of the present invention is as large new variety of PA66 modification, mainly by adding thermoplastic polyolefin elastomer, the material such as metallocene-polyolefin and rubber elastomer, add maleic anhydride graft copolymerization polar group simultaneously, thereby the consistency between reinforced plastic PA66 material and toughening material, also change its low-temperature impact-resistant performance, add anti-photooxidation resistance agent, improve its weather resistance, with this, product of the present invention of preparation can be met at railway equipment, trolley part, in the application of the outdoor application such as engineering machinery and sports equipment occasion to low temperature resistant, the requirements at the higher level (about the performance detection data of product of the present invention refers to table 1) of toughness.
The performance test results of the low temperature resistant super tough modified Pa 66 of table 1 product of the present invention
| Tensile strength | Elongation at break | Modulus in flexure | Notched Izod impact strength | -45 ℃ of shock strengths |
| ≥46mpa | ≥200% | ≥1500mpa | ≥70KJ/M 2 | ≥25 KJ/M 2 |
2, the over-all properties of low temperature resistant super tough modified Pa 66 alloy materials of product of the present invention is higher, when making product performance both there is higher toughness, tensile strength is also controlled in higher level, can also suppress copper staining simultaneously, resistance to low temperature excellence, reach the advanced level of same kind of products at abroad, alternative imported materials and items, has met the high quality requirement of domestic market to super tough PA66 alloy.
four, embodiment:
Below in conjunction with embodiment, further illustrate the present invention, but do not limit content of the present invention.
Embodiment 1:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 73%, PA6 10%, Thermoplastic Elastomer, Olefinic TPV 7%, thermoplastic elastomer TPE 3%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 5%, ultraviolet absorbent uv-326 0.8%, UV light absorber UV-9 0.2%, antioxidant 1076 0.3%, 2-mercaptobenzimidazole MB 0.2% and ethylene bis stearic acid amide 0.5%.
Embodiment 2: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 75%, PA6 8%, Thermoplastic Elastomer, Olefinic TPV 6%, thermoplastic elastomer TPE 2%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 7%, ultraviolet absorbent uv-326 0.6%, UV light absorber UV-9 0.3%, antioxidant 1076 0.2%, 2-mercaptobenzimidazole MB 0.3% and ethylene bis stearic acid amide 0.6%.
Embodiment 3: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 70%, PA6 12%, Thermoplastic Elastomer, Olefinic TPV 6.3%, thermoplastic elastomer TPE 4%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 6%, ultraviolet absorbent uv-326 0.5%, UV light absorber UV-9 0.2%, antioxidant 1076 0.4%, 2-mercaptobenzimidazole MB 0.2% and ethylene bis stearic acid amide 0.4%.
Embodiment 4: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 65%, PA6 15%, Thermoplastic Elastomer, Olefinic TPV 10%, thermoplastic elastomer TPE 1%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 6%, ultraviolet absorbent uv-326 0.3%, UV light absorber UV-9 0.7%, antioxidant 1076 0.8%, 2-mercaptobenzimidazole MB 0.2% and ethylene bis stearic acid amide 1.0%.
Embodiment 5: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 78%, PA6 5%, Thermoplastic Elastomer, Olefinic TPV 6%, thermoplastic elastomer TPE 2%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 7%, ultraviolet absorbent uv-326 0.2%, UV light absorber UV-9 0.1%, antioxidant 1076 0.1%, 2-mercaptobenzimidazole MB 0.1% and ethylene bis stearic acid amide 1.5%.
Embodiment 6: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 60%, PA6 20%, Thermoplastic Elastomer, Olefinic TPV 6%, thermoplastic elastomer TPE 4%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 7.5%, ultraviolet absorbent uv-326 0.7%, UV light absorber UV-9 0.5%, antioxidant 1076 0.5%, 2-mercaptobenzimidazole MB 0.5% and ethylene bis stearic acid amide 0.3%.
Embodiment 7: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 85%, PA6 2%, Thermoplastic Elastomer, Olefinic TPV 6%, thermoplastic elastomer TPE 1%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 5%, ultraviolet absorbent uv-326 0.4%, UV light absorber UV-9 0.1%, antioxidant 1076 0.2%, 2-mercaptobenzimidazole MB 0.1% and ethylene bis stearic acid amide 0.2%.
Embodiment 8: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 60%, PA6 3%, Thermoplastic Elastomer, Olefinic TPV 20%, thermoplastic elastomer TPE 1%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 15%, ultraviolet absorbent uv-326 0.4%, UV light absorber UV-9 0.1%, antioxidant 1076 0.2%, 2-mercaptobenzimidazole MB 0.1% and ethylene bis stearic acid amide 0.2%.
Embodiment 9:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 73%, PA6 10%, Thermoplastic Elastomer, Olefinic TPO 7%, thermoplastic polyurethane elastomer 3%, maleic anhydride graft SIS/SEBS SEBS-g-MAH 5%, ultraviolet absorbent uv-326 0.8%, UV light absorber UV-9 0.2%, 2,4 dihydroxyl benzophenone UV-0 0.3%, triphenyl phosphite TPP 0.2% and stearic amide 0.5%.
Embodiment 10: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 75%, PA6 8%, Thermoplastic Elastomer, Olefinic TPO 6%, ethylene/propylene copolymer rubbers 2%, maleic anhydride graft terpolymer EP rubber EPDM-g-MAH 7%, ultraviolet absorbent uv-326 0.6%, UV light absorber UV-9 0.3%, oxidation inhibitor UV-327 0.2%, Tyox B DLTP 0.3% and amine hydroxybenzene 0.6%.
Embodiment 11: substantially the same manner as Example 1, difference is:
The low temperature resistant super tough modification of nylon alloy material of product of the present invention, with weight percentage, represent, its raw material consists of PA66 70%, PA6 12%, Thermoplastic Elastomer, Olefinic TPO 6.3%, thermoplastic elastomer TPE 4%, maleic anhydride grafted ethene-octene copolymer POE-g-MAH 6%, ultraviolet absorbent uv-326 0.5%, UV light absorber UV-9 0.2%, antioxidant 1076 0.4%, thio-2 acid 2 stearyl ester DSTP 0.2% and ethylene bis stearic acid amide 0.4%.
The preparation method of the low temperature resistant super tough modification of nylon alloy material of above-described embodiment 1～11 product of the present invention, this preparation method's detailed step is as follows:
A, first starting material PA66 and PA6 are dried in loft drier, bake out temperature is 90～110 ℃, and drying time is 2～4h;
B, starting material PA66, PA6 and other various starting material after drying according to the raw material composition preparation steps a of the low temperature resistant super tough modification of nylon alloy material described in the various embodiments described above then, the various starting material of preparation are put into high-speed mixer and mix 5～12min, the rotating speed of high-speed mixer is 800～1000 turn/min, obtains mixture after high-speed mixing;
C, the mixture that step b is obtained drop into heating and melting in double-screw extruding pelletizing machine, (described mixture drops into heating and melting in double-screw extruding pelletizing machine, vacuumizes section granulation to vacuumize section granulation, in this process, double-screw extruding pelletizing machine is respectively 205～210 ℃ from screw feed section to each section of temperature setting of head, 220～230 ℃, 240～250 ℃, 240～255 ℃, 230～235 ℃, vacuum tightness is 0.01Mpa, and screw speed is 110～130 turn/min; The Temperature Setting of described double-screw extruding pelletizing machine is 230～290 ℃, and screw slenderness ratio L/D is 36～48:1.), the material after granulation is dried in vacuum chamber, vacuum tightness is 0.01Mpa, and drying temperature is 80 ℃, and be 10h time of drying, after being dried, obtains the low temperature resistant super tough modification of nylon alloy material of product particle shape of the present invention.
Claims (1)
1. a low temperature resistant super tough modification of nylon alloy material, it is characterized in that: with weight percentage, represent, the raw material of described low temperature resistant super tough modification of nylon alloy material consists of PA66 60～85%, PA6 2～20%, main toughner 6～30%, auxiliary toughner 1～10%, compatilizer 5～20%, main UV light absorber 0.2～1%, auxiliary UV light absorber 0.1～1%, primary antioxidant 0.1～1%, auxiliary anti-oxidant 0.1～1% and lubricant 0.2～2%;
Described main toughner is Thermoplastic Elastomer, Olefinic TPV; Described auxiliary toughner is thermoplastic elastomer TPE; Described compatilizer is maleic anhydride grafted ethene-octene copolymer POE-g-MAH; Described main UV light absorber is ultraviolet absorbent uv-326; Described auxiliary UV light absorber is UV light absorber UV-9; Described primary antioxidant is antioxidant 1076; Described auxiliary anti-oxidant is 2-mercaptobenzimidazole MB; Described lubricant is ethylene bis stearic acid amide.
2. low temperature resistant super tough modification of nylon alloy material according to claim 1, it is characterized in that: the raw material of described low temperature resistant super tough modification of nylon alloy material consists of PA66 70～75%, PA6 8～12%, main toughner 6～9%, auxiliary toughner 2～5%, compatilizer 5～8%, main UV light absorber 0.5～0.9%, auxiliary UV light absorber 0.2～0.3%, primary antioxidant 0.2～0.5%, auxiliary anti-oxidant 0.2～0.3% and lubricant 0.3～0.6%.
3. low temperature resistant super tough modification of nylon alloy material according to claim 1, it is characterized in that: the raw material of described low temperature resistant super tough modification of nylon alloy material consists of PA66 73%, PA6 10%, main toughner 7%, auxiliary toughner 3%, compatilizer 5%, main UV light absorber 0.8%, auxiliary UV light absorber 0.2%, primary antioxidant 0.3%, auxiliary anti-oxidant 0.2% and lubricant 0.5%.
4. a preparation method for low temperature resistant super tough modification of nylon alloy material, is characterized in that, described preparation method comprises the following steps:
A, first starting material PA66 and PA6 are dried in loft drier, bake out temperature is 90～110 ℃, and drying time is 2～4h;
B, starting material PA66, PA6 and other various starting material after drying according to the raw material composition preparation steps a of low temperature resistant super tough modification of nylon alloy material described in claim 1 then, the various starting material of preparation are put into high-speed mixer and mix 5～12min, the rotating speed of high-speed mixer is 800～1000 turn/min, obtains mixture after high-speed mixing;
C, the mixture that step b is obtained drop into heating and melting in double-screw extruding pelletizing machine, vacuumize section granulation, material after granulation is dried in vacuum chamber, vacuum tightness is 0.01Mpa, drying temperature is 80 ℃, be 10h time of drying, after being dried, obtains the low temperature resistant super tough modification of nylon alloy material of particulate state;
Described mixture drops into heating and melting in double-screw extruding pelletizing machine, vacuumizes section granulation; in this process, double-screw extruding pelletizing machine is respectively 205～210 ℃ from screw feed section to each section of temperature setting of head; 220～230 ℃; 240～250 ℃; 240～255 ℃; 230～235 ℃, vacuum tightness is 0.01Mpa, and screw speed is 110～130 turn/min.
5. the preparation method of low temperature resistant super tough modification of nylon alloy material according to claim 4, is characterized in that: the Temperature Setting of the machine of double-screw extruding pelletizing described in step c is 230～290 ℃, and screw slenderness ratio L/D is 36～48:1.
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| CN104845362A (en) * | 2015-06-03 | 2015-08-19 | 苏州靖羽新材料有限公司 | Toughened nylon material and preparation method thereof |
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| US4391943A (en) * | 1982-01-04 | 1983-07-05 | The Polymer Corporation | UV Stabilized nylon 6 |
| CN1116360C (en) * | 2000-11-04 | 2003-07-30 | 中国石化集团巴陵石油化工有限责任公司 | Process for preparing nylon with high rigidity, super toughness and high resistance to low temp |
| CN102093710B (en) * | 2010-12-27 | 2012-06-20 | 广州合成材料研究院有限公司 | Material special for ultraviolet-resistant anti-fatigue wear-resistant bottle forking device of PA66 filling and packaging equipment |
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