CN102382432A - High-impact polyethylene terephthalate (PET) composite material and preparation method thereof - Google Patents
High-impact polyethylene terephthalate (PET) composite material and preparation method thereof Download PDFInfo
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- CN102382432A CN102382432A CN2011103826715A CN201110382671A CN102382432A CN 102382432 A CN102382432 A CN 102382432A CN 2011103826715 A CN2011103826715 A CN 2011103826715A CN 201110382671 A CN201110382671 A CN 201110382671A CN 102382432 A CN102382432 A CN 102382432A
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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
- 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
- B29C48/78—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
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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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
- B29C2948/92885—Screw or gear
-
- 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
Abstract
The invention discloses a high-impact polyethylene terephthalate (PET) composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by weight: 45-55% of PET, 2-10% of polyester type thermoplastic polyurethane elastomer, 10-20% of composite flame retardant, 0-0.5% of composite nucleating agent, 0-0.6% of antioxidant, 0.5-1% of lubricant and 25-35% of lubricant. The ester group on the polyester type thermoplastic polyurethane elastomer molecular chain and the ester group on the PET molecular chain are subjected to ester exchange reaction to generate a copolymer, thereby enhancing the compatibility of the PET and the polyester type thermoplastic polyurethane elastomer; therefore, the impact strength of the PET can be enhanced under the condition of adding a small amount of polyester type thermoplastic polyurethane elastomer; and meanwhile, the composite material can have excellent comprehensive properties by adding other assistants.
Description
[technical field]
The present invention relates to polymeric material field, relate in particular to a kind of high impact poly ethylene glycol terephthalate matrix material and preparation method thereof.
[background technology]
Pet resin; The English PET that is called for short; Price is the cheapest in the engineering plastics matrix resin, and has good wear resistance, thermotolerance, chemical proofing, electrical insulating property and intensity advantages of higher, is widely used in industries such as automobile, electric and food.Yet shortcomings such as the PET that does not pass through modification is slow owing to crystallization velocity, and molding processability is poor, and fragility is big, shock strength is low, its range of application is very limited.Therefore, domestic and international many scholars, enterprise have carried out a large amount of modification work, for example, thereby improve the shock resistance of PET through the thermoplastic elastic body that adds functionalization.
Number of patent application is that 98102049.6 patented claim discloses a kind of anti-impact polyester (PET) blend and preparation method thereof, and it is to utilize maleic anhydride grafted ethene-1-octene copolymer (POE-g-MAH) to prepare high-impact PET.But in the grafting process of utilizing MAH fusion-grafting POE, because it is crosslinked to be prone to generation between the MAH, the grafts performance reduces, and has also caused the percentage of grafting of POE low simultaneously, and therefore, POE-g-MAH is unsatisfactory to the toughening modifying effect of PET.
[summary of the invention]
The invention provides a kind of high impact poly ethylene glycol terephthalate matrix material and preparation method thereof, the matrix material shock resistance of preparation is good.
Technical scheme of the present invention is:
A kind of high impact poly ethylene glycol terephthalate matrix material, by weight percentage, composed of the following components:
A kind of preparation method of aforesaid high impact poly ethylene glycol terephthalate matrix material may further comprise the steps:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 3-7min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 200-240 ℃, two district's temperature: 205-245 ℃, three district's temperature: 210-250 ℃; Four district's temperature: 215-255 ℃, five district's temperature: 220-260, six district's temperature: 225-265 ℃; Seven district's temperature: 230-270 ℃, eight district's temperature: 235-275 ℃, head temperature: 245-280 ℃; Vacuum tightness 0.02--0.10Pa, the engine speed when extruding: 300-500r/min; Rate of feeding: 10-30r/min.
The present invention utilizes ester group and the ester group generation transesterification reaction on the PET molecular chain on the polyester type TPUE molecular chain, generates multipolymer, and then improves the consistency between PET and the polyester type TPUE; Therefore, under the situation of adding little polyester type TPUE, just can effectively improve the resistance to impact shock of PET; Make matrix material possess excellent comprehensive performances through adding other auxiliary agents simultaneously.Matrix material of the present invention can be used for producing the structural part of multiple electric, household electrical appliance and automobile, has widened the Application Areas of PET.In addition, the used preparation method of the present invention requires low to production unit, and efficient is high, is convenient to scale operation.
[embodiment]
Below in conjunction with concrete embodiment the present invention is done a detailed elaboration.
Wherein, in following each embodiment, the limiting viscosity of PET is 0.6-1.0dl/g, is preferably 0.65dl/g, produces CZ5011 like Jiangyin Xingtai; The soft segment components of polyester type TPUE is a polyester polyol, shore hardness 60A, and ten thousand China produce WHT-1560 like Yantai; Composite flame-retardant agent is the mixture of bromide fire retardant and fire retarding synergist; The weight ratio of bromide fire retardant and fire retarding synergist is 1-4: 1; Wherein bromide fire retardant is that in TDE, bromination epoxy (the blue strong industry and trade ltd in Guangrao produces), brominated Polystyrene, the PBDE one or more mix, and fire retarding synergist is that in Antimony Trioxide: 99.5Min (Hu'nan Chenzhou Mining Co., Ltd.'s product), antimony peroxide, the sodium antimonate one or more mix; Composite nucleating agent is that (the order number is 2000 orders to talcum powder; The Shenzhen imperial brightness of brocade Industrial Co., Ltd. product), mica, lime carbonate (are water-ground limestone; The order number is 2000 orders; Jiangxi special fine powder difficult to understand ltd produces), in the nano-sized magnesium hydroxide, long-chain carboxylic acid's sodium salt one or more mix, wherein long-chain carboxylic acid's sodium salt is the monacid sodium salt that contains 12-35 carbon atom; Oxidation inhibitor is that four [methyl-β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester (such as antioxidant 1010) and three (2, the 4-di-tert-butyl-phenyl) phosphorous acid esters (such as oxidation inhibitor 168) mixed by weight 1: 1; Lubricant is the ethylene bis-fatty acid amides, like home-made TAF; Spun glass produces T635B for megalith group.
Embodiment 1
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 51.4%; Polyester type TPUE 2.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 15.0%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.4%; Lubricant 0.7%, spun glass 30%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 5min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 200 ℃, two district's temperature: 210 ℃, three district's temperature: 220 ℃, four district's temperature: 230 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 230 ℃, eight district's temperature: 235 ℃, head temperature: 250 ℃; Vacuum tightness 0.02Pa, the engine speed when extruding: 420r/min; Rate of feeding: 25r/min.
Embodiment 2
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 51.9%, polyester type TPUE 2.0%, composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 15.0%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.4%, lubricant 0.7%, spun glass 30%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, oxidation inhibitor, lubricant are mixed 7min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 240 ℃, two district's temperature: 245 ℃, three district's temperature: 250 ℃, four district's temperature: 255 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 230 ℃, eight district's temperature: 245 ℃, head temperature: 280 ℃; Vacuum tightness 0Pa, the engine speed when extruding: 420r/min; Rate of feeding: 25r/min.
Embodiment 3
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 52%; Polyester type TPUE 2.0%, composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 15.0%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.3%; Lubricant 0.7%, spun glass 30%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, lubricant are mixed 3min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 220 ℃, two district's temperature: 240 ℃, three district's temperature: 230 ℃, four district's temperature: 250 ℃, five district's temperature: 260 ℃, six district's temperature: 265 ℃, seven district's temperature: 270 ℃, eight district's temperature: 275 ℃, head temperature: 270 ℃; Vacuum tightness-0.2Pa, the engine speed when extruding: 420r/min; Rate of feeding: 25r/min.
Embodiment 4
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 47.4%; Polyester type TPUE 6.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 15.0%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.4%; Lubricant 0.7%, spun glass 30%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 6min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 210 ℃, two district's temperature: 220 ℃, three district's temperature: 230 ℃, four district's temperature: 240 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 250 ℃, eight district's temperature: 255 ℃, head temperature: 260 ℃; Vacuum tightness 0.02Pa, the engine speed when extruding: 420r/min; Rate of feeding: 25r/min.
Embodiment 5
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 45%; Polyester type TPUE 10.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 13.2%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.6%; Lubricant 0.7%, spun glass 30%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 5min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 230 ℃, two district's temperature: 220 ℃, three district's temperature: 230 ℃, four district's temperature: 240 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 250 ℃, eight district's temperature: 255 ℃, head temperature: 260 ℃; Vacuum tightness 0.01Pa, the engine speed when extruding: 420r/min; Rate of feeding: 25r/min.
Embodiment 6
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 47.4%; Polyester type TPUE 6.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 20.0%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.6%; Lubricant 0.5%, spun glass 25%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 4min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 210 ℃, two district's temperature: 220 ℃, three district's temperature: 230 ℃, four district's temperature: 240 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 250 ℃, eight district's temperature: 255 ℃, head temperature: 260 ℃; Vacuum tightness 0Pa, the engine speed when extruding: 450r/min; Rate of feeding: 29r/min.
Embodiment 7
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 47.3%; Polyester type TPUE 6.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 10.0%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.2%; Lubricant 1.0%, spun glass 35%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 5min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 230 ℃, two district's temperature: 230 ℃, three district's temperature: 240 ℃, four district's temperature: 240 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 250 ℃, eight district's temperature: 255 ℃, head temperature: 260 ℃; Vacuum tightness 0.02Pa, the engine speed when extruding: 440r/min; Rate of feeding: 21r/min.
Embodiment 8
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 55%; Polyester type TPUE 4.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 14.6%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.4%; Lubricant 0.5%, spun glass 25%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 4min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 210 ℃, two district's temperature: 220 ℃, three district's temperature: 230 ℃, four district's temperature: 240 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 250 ℃, eight district's temperature: 255 ℃, head temperature: 260 ℃; Vacuum tightness 0.02Pa, the engine speed when extruding: 450r/min; Rate of feeding: 29r/min.
Embodiment 9
High impact poly ethylene glycol terephthalate matrix material among this embodiment, by weight percentage, composed of the following components:
PET 50.4%; Polyester type TPUE 4.0%; Composite flame-retardant agent (75% bromination epoxy+25% Antimony Trioxide: 99.5Min) 14.0%, composite nucleating agent (15% long-chain carboxylic acid's sodium salt+40% talcum powder+45% water-ground limestone) 0.5%, oxidation inhibitor (50% antioxidant 1010+50% oxidation inhibitor 168) 0.4%; Lubricant 0.7%, spun glass 30%.
Its preparation method is following:
Step 1, take by weighing each component by above-mentioned described weight percent;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 6min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 210 ℃, two district's temperature: 220 ℃, three district's temperature: 230 ℃, four district's temperature: 240 ℃, five district's temperature: 245 ℃, six district's temperature: 250 ℃, seven district's temperature: 250 ℃, eight district's temperature: 255 ℃, head temperature: 260 ℃; Vacuum tightness 0.02Pa, the engine speed when extruding: 420r/min; Rate of feeding: 25r/min.
Performance test and evaluation:
With the particle of accomplishing granulation among the foregoing description 1-9 in 120-150 ℃ convection oven dry 4-6 hour,, keep the mould temperature in the sample making course between 70-100 ℃ again with the injection moulding sample preparation on the 80T injection moulding machine of dried particle.
Wherein, tensile strength is tested by GB/T 1040 standards.Specimen types is the I type, batten size (mm): 170 (length) * (20 ± 0.2) (end width) * (4 ± 0.2) (thickness), and draw speed is 50mm/min; Flexural strength and modulus in flexure are tested by GB 9341/T standard.Specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2), rate of bending are 20mm/min; Notched Izod impact strength is tested by GB/T 1043 standards.Specimen types is the I type, specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2); The breach type is a category-A, and the breach residual thickness is 3.2mm; Heat-drawn wire is tested by GB/T 1634.2 standards, and load is 1.80MPa, and span is 100mm.
The proportioning of embodiment 1-9 is as shown in table 1 below:
Table 1
The performance test data of embodiment 1-9 prepared composite material is as shown in table 2 below:
Table 2
Performance test data by last table 2 can be known; When polyester type TPUE usage quantity reach the raw material gross weight 6.0% the time; Notched Izod impact strength reaches as high as 17.3kJ/m2; The shock resistance of PET is significantly promoted, under the situation of adding little polyester type TPUE, just can effectively improve the resistance to impact shock of PET; And when the composite nucleating agent consumption reach gross weight 0.5% the time; The heat-resistant deforming performance of PET is best, and heat-drawn wire reaches 224.1 ℃, and tensile strength also reaches 150.2MPa simultaneously; Modulus in flexure reaches 10040MPa, explains that the matrix material of preparation possesses excellent comprehensive performances.This shows that matrix material of the present invention can be used for producing the structural part of multiple electric, household electrical appliance and automobile, widened the Application Areas of PET.In addition, the used preparation method of the present invention requires low to production unit, and efficient is high, is convenient to scale operation.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. high impact poly ethylene glycol terephthalate matrix material is characterized in that: by weight percentage, composed of the following components:
2. high impact poly ethylene glycol terephthalate matrix material according to claim 1 is characterized in that: the limiting viscosity of said PET is 0.6-1.0dl/g.
3. high impact poly ethylene glycol terephthalate matrix material according to claim 1 is characterized in that: the soft segment components of said polyester type TPUE is a polyester polyol, shore hardness 60-80A.
4. high impact poly ethylene glycol terephthalate matrix material according to claim 1 is characterized in that: said composite flame-retardant agent is the mixture of bromide fire retardant and fire retarding synergist, and the weight ratio of bromide fire retardant and fire retarding synergist is 1-4: 1.
5. high impact poly ethylene glycol terephthalate matrix material according to claim 4 is characterized in that: said bromide fire retardant is that in TDE, bromination epoxy, brominated Polystyrene, the PBDE one or more mix.
6. high impact poly ethylene glycol terephthalate matrix material according to claim 4 is characterized in that: said fire retarding synergist is that in Antimony Trioxide: 99.5Min, antimony peroxide, the sodium antimonate one or more mix.
7. high impact poly ethylene glycol terephthalate matrix material according to claim 1 is characterized in that: said composite nucleating agent is that in talcum powder, mica, lime carbonate, nano-sized magnesium hydroxide, the long-chain carboxylic acid's sodium salt one or more mix.
8. high impact poly ethylene glycol terephthalate matrix material according to claim 7 is characterized in that: said long-chain carboxylic acid's sodium salt is the monacid sodium salt that contains 12-35 carbon atom.
9. high impact poly ethylene glycol terephthalate matrix material according to claim 1; It is characterized in that: said oxidation inhibitor is four [methyl-β-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester and three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester mixed by weight 1: 1; Said lubricant is the ethylene bis-fatty acid amides.
10. preparation method like the described high impact poly ethylene glycol terephthalate of the arbitrary claim of claim 1-9 matrix material is characterized in that: may further comprise the steps:
Step 1, take by weighing each component by the described weight percent of claim 1;
Step 2, the PET that takes by weighing, polyester type TPUE, composite flame-retardant agent, composite nucleating agent, oxidation inhibitor, lubricant are mixed 3-7min in moderate-speed mixers;
Step 3, the material that step 2 is mixed add in the hopper of twin screw extruder, when melt extruding, at the venting port adding spun glass of twin screw extruder, through melt extruding granulation; The processing condition of twin screw extruder are following:
One district's temperature: 200-240 ℃, two district's temperature: 205-245 ℃, three district's temperature: 210-250 ℃; Four district's temperature: 215-255 ℃, five district's temperature: 220-260, six district's temperature: 225-265 ℃; Seven district's temperature: 230-270 ℃, eight district's temperature: 235-275 ℃, head temperature: 245-280 ℃; Vacuum tightness 0.02--0.10Pa, the engine speed when extruding: 300-500r/min; Rate of feeding: 10-30r/min.
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