CN103304985A - High-strength and high-toughness polyamide/polyester alloy, preparation method and application thereof - Google Patents

High-strength and high-toughness polyamide/polyester alloy, preparation method and application thereof Download PDF

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Publication number
CN103304985A
CN103304985A CN2012100591002A CN201210059100A CN103304985A CN 103304985 A CN103304985 A CN 103304985A CN 2012100591002 A CN2012100591002 A CN 2012100591002A CN 201210059100 A CN201210059100 A CN 201210059100A CN 103304985 A CN103304985 A CN 103304985A
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China
Prior art keywords
polyamide
polyester
polymeric amide
district
alloy
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Chinese (zh)
Inventor
谭麟
陈大华
梁惠强
郑一泉
岑茵
赵建青
宁凯军
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Kingfa Science and Technology Co Ltd
Shanghai Kingfa Science and Technology Co Ltd
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Kingfa Science and Technology Co Ltd
Shanghai Kingfa Science and Technology Co Ltd
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Priority to CN2012100591002A priority Critical patent/CN103304985A/en
Publication of CN103304985A publication Critical patent/CN103304985A/en
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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
    • 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • 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
    • 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
    • B29C2948/92514—Pressure
    • 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
    • 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
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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

Abstract

The invention discloses a high-strength and high-toughness polyamide/polyester alloy, a preparation method and an application thereof. The high-strength and high-toughness polyamide/polyester alloy is prepared from 1-97 % of the polyamide, 1-97 % of the polyester, 1-20 % of a compatibilizer and 1 % of an additive, wherein the polyamide has an intrinsic viscosity of 1.8-3.0 dL/g, the polyester has an intrinsic viscosity of 0.6-0.9 dL/g, and the compatibilizer is selected from more than one of polymer ionomer, polyamide-polyester block copolymer, phenyl sulfonate, epoxy resin, maleic anhydride grafted copolymer or elastomer containing rubber phase. By using the polyamide and polyester resin with specific viscosity, and the compatibilizer provided in the invention, compatibility of the above resin can be effectively improved, so that the above blends has relatively high toughness and strength.

Description

The polyamide/polyester alloy of a kind of high strength, high tenacity and method for making thereof and application
Technical field
The present invention relates to the modified plastics field, be specifically related to the polyamide/polyester alloy and preparation method thereof and application of a kind of high strength, high tenacity.
Background technology
Polymeric amide has excellent mechanical property, self-lubricating property and thermal stability because of its special molecular structure, is widely used in the fields such as automobile, electronic apparatus, machinery and sports equipment as engineering plastics.But there are the shortcomings such as molding shrinkage is high, water-intake rate is high in polymeric amide, makes the poor dimensional stability of prepared product, has limited the use of polymeric amide.
Glass fibre strengthen to be filled the mechanical property that polymeric amide can significantly promote polymeric amide, but intrinsic molding shrinkage, the water-intake rate of polymeric amide crossed the problem such as high and be difficult to effectively be solved by glass fibre filling.And polyamide/polyester alloyization can effectively reduce water-intake rate and the molding shrinkage of polymeric amide, improves heat-drawn wire and the chemical resistance of polyamide substrate.Polymeric amide and polyester are two large class Crystalline plastics, therefore both alloyings are typical crystalline substance-brilliant incompatible systems, alloying causes the goods embrittlement, do not reach application requiring, therefore the main direction of polyamide/polyester alloy modification is for putting forward heavy alloyed shock strength, patent US3903042 adds 0.5～1 part thermo-stabilizer and has prepared high-intensity alloy material in the polyamide/polyester alloy that glass strengthens, but the impact property of material is relatively poor, is difficult to reach application requiring; The prescription that US4008199 announces has added phenolic resin and organic phosphoric compound on above-mentioned patent basis, further improved the thermostability of polyamide/polyester; US3812077 is coated on fiberglass surfacing with PBT, then will coat good glass fibre and polyamide blended, has prepared the polymer alloy of high strength, high-modulus, but its impact property still difficulty satisfy application requiring.
CN101508842B as compatilizer, has effectively improved the impact property of blend alloy by homemade PA6-PET segmented copolymer.But the production process of PA6-PET segmented copolymer is very complicated, unsuitable scale operation.
CN100448930C has prepared blend alloy by reclaiming polyethylene terephthalate and polyamide 66 blend, yet the notched Izod impact strength of the alloy of 40 parts of glass enhancings only is 11.5kJ/m 2, not reaching the engineering grade application requiring, prepared alloy does not possess actual use value.
Summary of the invention
For the shortcoming and deficiency that overcome prior art, primary and foremost purpose of the present invention is to provide the polyamide/polyester alloy of a kind of high strength, high tenacity.
Another object of the present invention is to provide the preparation method of above-mentioned polyamide/polyester alloy.
A further object of the present invention is to provide the purposes of above-mentioned polyamide/polyester alloy.
Purpose of the present invention is achieved through the following technical solutions:
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by the composition of following mass percent:
Polymeric amide: 1-97%
Polyester: 1-97%
Compatilizer: 1-20%
Auxiliary agent: 1%;
Preferably, the polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by the composition of following mass percent:
Polymeric amide: 42-95%
Polyester: 3-42%
Compatilizer: 1-15%
Auxiliary agent: 1%.
The limiting viscosity of described polymeric amide is 1.8～3.0dL/g, and the limiting viscosity scope of polyester is 0.6～0.9dL/g; When the limiting viscosity of polymeric amide and polyester was in above-mentioned scope, its notched Izod impact strength of prepared alloy can reach 6kJ/m 2Above, tensile strength reaches 75MPa; And when polymeric amide and polyester inherent viscosity were not within above-mentioned scope, the notched Izod impact strength of alloy was at 3kJ/m 2Below, tensile strength then is down to below the 50MPa.
The fusing point of described polymeric amide is 160-320 ℃.
Described polymeric amide is a kind of among polyamide 6, polyamide 66, polyamide 610, polyamide 612, polymeric amide 46, polyamide 1010, polymeric amide 11, polymeric amide 12, polyamide 6 T, polyamide 9T or the polymeric amide 10T.
Described polyester has suc as formula the structure shown in the I:
(formula I)
The preferred polyethylene terephthalate of described polyester (PET), Poly(Trimethylene Terephthalate) (PTT), polybutylene terephthalate (PBT), polyethylene terephthalate-1, a kind of in 4-cyclohexanedimethanoester ester (PETG) or polyethylene terephthalate-1,4 cyclohexane dimethanol ester.
Described compatilizer is polymeric ionomers, polymeric amide-polyester block copolymer, phenylbenzimidazole sulfonic acid salt, Resins, epoxy, maleic anhydride graft copolymer or contains in the rubber phase elastomerics more than one;
Described polymeric ionomers is polyester from aggressiveness and/or polyolefine from aggressiveness;
Described polymeric amide-polyester block copolymer is polymeric amide-acrylate copolymer, a kind of in polymeric amide-Copolycarbonate or polymeric amide-polybutylene terephthalate multipolymer.
Described phenylbenzimidazole sulfonic acid salt is a kind of in Phenylsulfonic acid potassium, benzene sulfonic acid sodium salt, hydroxy benzenesulfonic acid calcium or the Sodium dodecylbenzene sulfonate;
Described Resins, epoxy is a kind of in glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category Resins, epoxy or the alicyclic based epoxy resin;
Described maleic anhydride graft copolymer is a kind of in the ethylene-octene copolymer of maleic anhydride grafted polyethylene, maleic anhydride inoculated polypropylene, maleic anhydride grafted polystyrene, maleic anhydride graft or the maleic anhydride graft polymeric amide;
The described rubber phase elastomerics that contains is a kind of in styrene-butadiene block copolymer (SBS), hydrogenated styrene-butadiene block copolymer (SEBS), methacrylic acid-styrene butadiene core-shell polymer (MBS) or the styrene butadiene-vinyl cyanide ternary block polymer (ABS).
Described auxiliary agent is more than one in oxidation inhibitor, lubricant or the nucleator.
The preparation method of above-mentioned glass fiber reinforced polyamide/polyester alloy may further comprise the steps:
(1) polymeric amide and polyester is dry respectively, more dried polymeric amide and polyester are mixed with compatilizer, auxiliary agent;
(2) mixture with step (1) joins twin screw extruder, melt extrudes the polyamide/polyester alloy that obtains high strength, high tenacity after the granulation;
The described drying of step (1) is 120 ℃ of lower vacuum-dryings 4 hours;
The described mixing of step (1) is to mix 3～5min in high speed agitator;
Step (2) is described, and mixture is joined twin screw extruder is to claim to add by weight-loss metering;
The working conditions of the described twin screw extruder of step (2) is: 120～210 ℃ of district's temperature, 180～320 ℃ of two district's temperature, 180～350 ℃ of three district's temperature, 200～350 ℃ of four district's temperature, 200～350 ℃ of five district's temperature, 200～350 ℃ of six district's temperature, 200～350 ℃ of head temperatures, pressure are 12～18MPa.
A kind of moulded product is that polyamide/polyester alloy by above-mentioned high strength, high tenacity obtains after by melting treatment;
Described melting process for the treatment of is injection-molded or the blow-molded box pultrusion.
Above-mentioned moulded product can be used as automobile-use parts, electronics or electric components, machinery with component or sports equipment with component etc.
The present invention has following advantage and effect with respect to prior art:
1, the present invention adopts polymeric amide and the vibrin of particular viscosity, intensity that can the Effective Raise polyamide/polyester alloy.
2, adopt polymeric amide and the vibrin of particular viscosity of the present invention, and adopt the compatilizer in the patent of the present invention, the consistency of the above-mentioned resin of energy Effective Raise, thus so that above-mentioned blend has higher toughness.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited to this.
The raw material that does not indicate the source in following examples is common commercial goods.
Embodiment 1
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by following steps:
(1) PA6 and PET is dry respectively;
(2) with dried PA6 (95wt%, viscosity is 1.8dL/g) and PET (3%, viscosity is 0.6dL/g) (1wt%) claim join forcing machine by weight-loss metering by high-speed mixer after mixing with benzene sulfonic acid sodium salt (0.5wt%), maleic anhydride inoculated polypropylene (0.5wt%), auxiliary agent (being formed by oxidation inhibitor 1098, lubricant polyethylene wax and nucleator superfine talcum powder), extruding pelletization obtains the polyamide/polyester alloy of high strength, high tenacity.Being set as follows of twin screw extruder wherein: 120～140 ℃ of twin screw extruder one district's temperature, 260～270 ℃ of two district's temperature, 240～250 ℃ of three district's temperature, 240～250 ℃ of four district's temperature, 240～250 ℃ of five district's temperature, 260～270 ℃ of six district's temperature, 270 ℃ of head temperatures, pressure are 12MPa.
Described per-cent is the per-cent that accounts for polyamide/polyester alloy raw material total mass.
Embodiment 2
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by following steps:
(1) PA12 and PBT is dry respectively;
(2) with dried PA12 (60wt%, viscosity is 2.5dL/g) and PBT (35wt%, viscosity is 0.9dL/g) (1wt%) claim join forcing machine by weight-loss metering by high-speed mixer after mixing with Phenylsulfonic acid potassium (2wt%), maleic anhydride grafted polyethylene (2wt%), auxiliary agent (being formed by oxidation inhibitor 1098 and lubricant polyethylene wax), extruding pelletization obtains the polyamide/polyester alloy of high strength, high tenacity.Being set as follows of twin screw extruder wherein: 120～140 ℃ of twin screw extruder one district's temperature, 260～270 ℃ of two district's temperature, 240～250 ℃ of three district's temperature, 240～250 ℃ of four district's temperature, 240～250 ℃ of five district's temperature, 260～270 ℃ of six district's temperature, 270 ℃ of head temperatures, pressure are 15MPa.
Described per-cent is the per-cent that accounts for polyamide/polyester alloy raw material total mass.
Embodiment 3
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by following steps:
(1) PA66 and PET is dry respectively;
(2) with dried PA66 (42wt%, viscosity is 3.0dL/g) and PET (42wt%, viscosity is 0.7dL/g) with polyester from aggressiveness (E.I.Du Pont Company, Surlyn 9320) (7wt%), maleic anhydride grafted polystyrene (8wt%), auxiliary agent (being comprised of oxidation inhibitor 1098, lubricant polyethylene wax and nucleator superfine talcum powder) (1wt%) claim to join forcing machine by weight-loss metering after mixing by high-speed mixer, extruding pelletization obtains the polyamide/polyester alloy of high strength, high tenacity.Being set as follows of twin screw extruder wherein: 120～140 ℃ of twin screw extruder one district's temperature, 260～270 ℃ of two district's temperature, 240～250 ℃ of three district's temperature, 240～250 ℃ of four district's temperature, 240～250 ℃ of five district's temperature, 260～270 ℃ of six district's temperature, 270 ℃ of head temperatures, pressure are 18MPa.
Described per-cent is the per-cent that accounts for polyamide/polyester alloy raw material total mass.
Embodiment 4
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by following steps:
(1) PA6 and PTT is dry respectively;
(2) with dried PA6 (30wt%, viscosity is 3.4dL/g) and PTT (60wt%, viscosity is 1.1dL/g) and polymeric amide-polyester block copolymer (Pebax of Arkema 3533) is (7wt%), polyester is from aggressiveness (E.I.Du Pont Company, Surlyn 9320) (2wt%), auxiliary agent is (by oxidation inhibitor 1098, lubricant polyethylene wax and nucleator superfine talcum powder form) (1wt%) by claiming to join forcing machine by weight-loss metering after the high-speed mixer mixing, extruding pelletization obtains high strength, the polyamide/polyester alloy of high tenacity.Being set as follows of twin screw extruder wherein: 120～140 ℃ of twin screw extruder one district's temperature, 260～270 ℃ of two district's temperature, 240～250 ℃ of three district's temperature, 240～250 ℃ of four district's temperature, 240～250 ℃ of five district's temperature, 260～270 ℃ of six district's temperature, 270 ℃ of head temperatures, pressure are 12MPa.
Described per-cent is the per-cent that accounts for polyamide/polyester alloy raw material total mass.
Embodiment 5
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by following steps:
(1) PA66 and PBT is dry respectively;
(2) with dried PA66 (5wt%, viscosity is 1.6dL/g) and PBT (90wt%, viscosity is 0.5dL/g) and Resins, epoxy (bisphenol A type epoxy resin, epoxy equivalent (weight) 300～500g/eq) (1wt%), polyester is from aggressiveness (E.I.Du Pont Company, Surlyn 9320) (3wt%), auxiliary agent is (by oxidation inhibitor 1098, lubricant polyethylene wax and nucleator superfine talcum powder form) (1wt%) by claiming to join forcing machine by weight-loss metering after the high-speed mixer mixing, extruding pelletization obtains high strength, the polyamide/polyester alloy of high tenacity.Being set as follows of twin screw extruder wherein: 120～140 ℃ of twin screw extruder one district's temperature, 260～270 ℃ of two district's temperature, 240～250 ℃ of three district's temperature, 240～250 ℃ of four district's temperature, 240～250 ℃ of five district's temperature, 260～270 ℃ of six district's temperature, 270 ℃ of head temperatures, pressure are 15MPa.
Described per-cent is the per-cent that accounts for polyamide/polyester alloy raw material total mass.
Embodiment 6
The polyamide/polyester alloy of a kind of high strength, high tenacity is prepared by following steps:
(1) PA6T and PET is dry respectively;
(2) with dried PA6T (10wt%, viscosity is 1.6dL/g) and PET (88wt%, viscosity is 1.1dL/g) with maleic anhydride grafted ethene-octene copolymer (0.5wt%), polyester from aggressiveness (E.I.Du Pont Company, Surlyn 9320) (0.5wt%), auxiliary agent (being comprised of oxidation inhibitor 1098, lubricant polyethylene wax and nucleator superfine talcum powder) (1wt%) claims to join forcing machine by weight-loss metering after mixing by high-speed mixer, extruding pelletization obtains the polyamide/polyester alloy of high strength, high tenacity.Being set as follows of twin screw extruder wherein: 200～140 ℃ of twin screw extruder one district's temperature, 290～300 ℃ of two district's temperature, 280～290 ℃ of three district's temperature, 280～290 ℃ of four district's temperature, 280～290 ℃ of five district's temperature, 280～290 ℃ of six district's temperature, 300 ℃ of head temperatures, pressure are 18MPa.
Described per-cent is the per-cent that accounts for polyamide/polyester alloy raw material total mass.
Performance test:
Tensile strength is tested by GB/T 1040 standards, and draw speed is 10mm/min.
Flexural strength, modulus in flexure and amount of deflection are tested by GB 9341/T standard, and rate of bending is 2mm/min.
Notched Izod impact strength is tested by GB/T 2571 standards.The breach type is category-A, small sample.
Unnotched impact strength is tested by the GB/T2571 standard.Batten is small sample.
The mechanical property of embodiment 1-6 sees Table 1.
The performance of table 1. embodiment 1-6 gained polyamide/polyester alloy
As seen from the above table, selecting simultaneously limiting viscosity is the polymeric amide of 1.8～3.0dL/g and the polyester (embodiment 1-3) that limiting viscosity is 0.6～0.9dL/g, the mechanical property, particularly high notched Izod impact strength that all have excellence of the polyamide/polyester alloy of preparing; And the limiting viscosity of polymeric amide and polyester is within above-mentioned scope the time (embodiment 4-6), and the shock strength of the alloy of gained does not then reach application requiring.
The present invention can prepare the polyamide/polyester alloy material of mechanical property excellence by selecting polymeric amide and the polyester of appropriate viscosity scope, can satisfy the service requirements in the fields such as automobile, electronic apparatus, component of machine and sports equipment parts.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (10)

1. the polyamide/polyester alloy of a high strength, high tenacity it is characterized in that being prepared by the composition of following mass percent:
Polymeric amide: 1-97%
Polyester: 1-97%
Compatilizer: 1-20%
Auxiliary agent: 1%;
The limiting viscosity of described polymeric amide is 1.8～3.0dL/g, and the limiting viscosity of polyester is 0.6～0.9dL/g;
Described compatilizer is polymeric ionomers, polymeric amide-polyester block copolymer, phenylbenzimidazole sulfonic acid salt, Resins, epoxy, maleic anhydride graft copolymer or contains in the rubber phase elastomerics more than one.
2. the polyamide/polyester alloy of high strength according to claim 1, high tenacity is characterized in that: the polyamide/polyester alloy of described high strength, high tenacity is that the composition by following mass percent prepares:
Polymeric amide: 42-95%
Polyester: 3-42%
Compatilizer: 1-15%
Auxiliary agent: 1%.
3. the polyamide/polyester alloy of high strength according to claim 1, high tenacity, it is characterized in that: described polyester has suc as formula the structure shown in the I:
(formula I).
4. the polyamide/polyester alloy of high strength according to claim 1, high tenacity is characterized in that:
Described polymeric amide is a kind of among polyamide 6, polyamide 66, polyamide 610, polyamide 612, polymeric amide 46, polyamide 1010, polymeric amide 11, polymeric amide 12, polyamide 6 T, polyamide 9T or the polymeric amide 10T;
Selected polyester is polyethylene terephthalate, Poly(Trimethylene Terephthalate), polybutylene terephthalate, polyethylene terephthalate-1, a kind of in 4-cyclohexanedimethanoester ester or polyethylene terephthalate-1,4 cyclohexane dimethanol ester.
5. the polyamide/polyester alloy of high strength according to claim 1, high tenacity is characterized in that:
Described polymeric ionomers is polyester from aggressiveness and/or polyolefine from aggressiveness;
Described polymeric amide-polyester block copolymer is polymeric amide-acrylate copolymer, a kind of in polymeric amide-Copolycarbonate or polymeric amide-polybutylene terephthalate multipolymer;
Described phenylbenzimidazole sulfonic acid salt is a kind of in Phenylsulfonic acid potassium, benzene sulfonic acid sodium salt, hydroxy benzenesulfonic acid calcium or the Sodium dodecylbenzene sulfonate;
Described Resins, epoxy is a kind of in glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category Resins, epoxy or the alicyclic based epoxy resin.
6. the polyamide/polyester alloy of high strength according to claim 1, high tenacity is characterized in that:
Described maleic anhydride graft copolymer is a kind of in the ethylene-octene copolymer of maleic anhydride grafted polyethylene, maleic anhydride inoculated polypropylene, maleic anhydride grafted polystyrene, maleic anhydride graft or the maleic anhydride graft polymeric amide;
The described rubber phase elastomerics that contains is a kind of in styrene-butadiene block copolymer, hydrogenated styrene-butadiene block copolymer, methacrylic acid-styrene butadiene core-shell polymer or the styrene butadiene-vinyl cyanide ternary block polymer;
Described auxiliary agent is more than one in oxidation inhibitor, lubricant or the nucleator.
7. the preparation method of the polyamide/polyester alloy of each described high strength of claim 1-6, high tenacity is characterized in that may further comprise the steps:
(1) polymeric amide and polyester is dry respectively, more dried polymeric amide and polyester are mixed with compatilizer, auxiliary agent;
(2) mixture with step (1) joins twin screw extruder, melt extrudes the polyamide/polyester alloy that obtains high strength, high tenacity after the granulation.
8. the preparation method of the polyamide/polyester alloy of high strength according to claim 7, high tenacity, it is characterized in that: the working conditions of the described twin screw extruder of step (2) is: 120～210 ℃ of district's temperature, 180～320 ℃ of two district's temperature, 180～350 ℃ of three district's temperature, 200～350 ℃ of four district's temperature, 200～350 ℃ of five district's temperature, 200～350 ℃ of six district's temperature, 200～350 ℃ of head temperatures, pressure are 12～18MPa.
9. moulded product is characterized in that: be that polyamide/polyester alloy by each described high strength of claim 1-6, high tenacity obtains after by melting treatment.
10. moulded product claimed in claim 9 is at automobile-use parts, electronics or electric components, mechanical with the application in component or the sports equipment usefulness component.
CN2012100591002A 2012-03-07 2012-03-07 High-strength and high-toughness polyamide/polyester alloy, preparation method and application thereof Pending CN103304985A (en)

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