CN104693724A - PC/PET alloy with excellent aging resistance - Google Patents
PC/PET alloy with excellent aging resistance Download PDFInfo
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- CN104693724A CN104693724A CN201310639558.XA CN201310639558A CN104693724A CN 104693724 A CN104693724 A CN 104693724A CN 201310639558 A CN201310639558 A CN 201310639558A CN 104693724 A CN104693724 A CN 104693724A
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- pet
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fodder In General (AREA)
Abstract
The invention discloses a PC/PET alloy with excellent aging resistance. The PC/PET alloy comprises following ingredients, by mass, 40 to 60% of PC, 20 to 30% of PET, 0.5 to 2% of a light stabilizer, 5 to 15% of a filling material, 0.1 to 1% of a coupling agent, 0.1 to 0.5% of an anti-oxidant, 0.5 to 1% of a lubricant, 2 to 10% of a flexibilizer, 2 to 5% of a compatilizer, and 0 to 1% of other auxiliary agents. Beneficial effects are that: compared with the prior art, the PC/PET alloy possesses excellent performance of PC and PET; strength, rigidity, heat resistance, aging resistance, and processability of the PC/PET alloy are improved greatly; a preparation method is simple; and cost is low.
Description
Technical field
The present invention relates to technical field of polymer materials, the PC/PET alloy that specifically a kind of ageing-resistant performance is excellent.
Background technology
PC/PET alloy (polycarbonate/polyethylene terephthalate) is the ideal engineering plastics of a kind of over-all properties, and it has the excellent properties that PC, PET single component does not possess, and all can use in a lot of occasion.But the consistency of both PC, PET in PC/PET alloy is bad, cause that the toughness of PC/PET is poor, mechanical strength is not high, and PC/PET is in production, storage and in using, due to the comprehensive action by internal and external factor, its performance degenerates gradually, aging.Therefore, to PC/PET carry out increase-volume, enhancing, the aspect such as ageing-resistant modification be necessary.
Summary of the invention
The object of the present invention is to provide the PC/PET alloy that a kind of comprehensive mechanical property is good, cost is low ageing-resistant performance is excellent.
The technical solution adopted for the present invention to solve the technical problems is: the PC/PET alloy that a kind of ageing-resistant performance is excellent, and its component by mass percent proportioning is: PC 40% ~ 60%, PET 20% ~ 30%, photostabilizer 0.5% ~ 2%, filler 5% ~ 15%, coupling agent 0.1% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.5% ~ 1%, toughner 2% ~ 10%, compatilizer 2% ~ 5%, other auxiliary agent 0 ~ 1%.
Described PC is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 35000g/mol.
Described PET is polyethylene terephthalate, and its intrinsic viscosity is 0.6 ~ 0.9dL/g.
Described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and GW-622 of mass ratio 1:1.
Described filler is the water-ground limestone that particle diameter is less than 5 μm.
Described coupling agent is titanate coupling agents.
Described oxidation inhibitor is the Hinered phenols antioxidant 1010 or 1076 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.
Described lubricant is pentaerythritol stearate (PETS).
Described toughner is ethylene-methyl acrylate-glyceryl methacrylate (E-MA-GMA).
Described compatilizer is styrene-maleic anhydride copolymer (SMA).
The preparation method of the PC/PET alloy that above-mentioned a kind of ageing-resistant performance is excellent, comprises the following steps:
(1), by PC in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, filler at 60 DEG C ~ 80 DEG C dry 30 ~ 45 minutes, stand-by;
(2), dry filler and coupling agent is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 15 ~ 40 minutes at 80 DEG C ~ 120 DEG C temperature, obtain the filler of surface activation process, then be cooled to lower than 40 DEG C of dischargings, stand-by;
(3) filler of the surface activation process, the PET and step (2) that take drying by weight ratio obtained adds in high-speed mixer, add the photostabilizer, oxidation inhibitor, the lubricant that take by weight ratio simultaneously, after to make to stir together 2 ~ 10 minutes all mixed, discharging add in twin screw extruder carry out melt extruding, granulation, and dry rear obtained PET master batch, stand-by;
(4), PET master batch obtained to the PC and step (3) that take drying is by weight ratio added in high-speed mixer, add toughner, compatilizer, other auxiliary agent of taking by weight ratio simultaneously, after to make to stir together 3 ~ 15 minutes all mixed, discharging adds in twin screw extruder, by twin screw extruder fully plastify blended after extrude, granulation, get product.
The invention has the beneficial effects as follows, compared with prior art, the PC/PET alloy that a kind of ageing-resistant performance of the present invention is excellent, at it with while PC, PET separately premium properties, substantially increase the intensity in alloy system, rigidity, thermotolerance, ageing resistance and processing characteristics, and its preparation technology is simple, cost is also low.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with concrete preferred embodiment.
The PC/PET alloy that ageing-resistant performance is excellent, its component by mass percent proportioning is: water-ground limestone 10%, titanate coupling agents 0.5%, oxidation inhibitor 0.2%, pentaerythritol stearate (PETS) 0.8%, ethylene-methyl acrylate-glyceryl methacrylate (E-MA-GMA) 5%, styrene-maleic anhydride copolymer (SMA) 3.5% that PC 53%, PET 25%, photostabilizer 2%, particle diameter are less than 5 μm.Wherein, described PC is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 35000g/mol; Described PET is polyethylene terephthalate, and its intrinsic viscosity is 0.6 ~ 0.9dL/g; Described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and GW-622 of mass ratio 1:1; Described oxidation inhibitor is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.
Preparation method: (1), by PC in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, the water-ground limestone that particle diameter is less than 5 μm at 60 DEG C ~ 80 DEG C dry 30 ~ 45 minutes, stand-by; (2) water-ground limestone and titanate coupling agents that dry particle diameter is less than 5 μm, is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 15 ~ 40 minutes at 80 DEG C ~ 120 DEG C temperature, obtain the water-ground limestone of surface activation process, then be cooled to lower than 40 DEG C of dischargings, stand-by; (3) water-ground limestone of the surface activation process, the PET and step (2) that take drying by weight ratio obtained adds in high-speed mixer, add the photostabilizer, oxidation inhibitor, the pentaerythritol stearate (PETS) that take by weight ratio simultaneously, after to make to stir together 2 ~ 10 minutes all mixed, discharging add in twin screw extruder carry out melt extruding, granulation, and dry rear obtained PET master batch, stand-by; (4), PET master batch obtained to the PC and step (3) that take drying is by weight ratio added in high-speed mixer, add the ethylene-methyl acrylate-glyceryl methacrylate (E-MA-GMA), the styrene-maleic anhydride copolymer (SMA) that take by weight ratio simultaneously, after to make to stir together 3 ~ 15 minutes all mixed, discharging adds in twin screw extruder, by twin screw extruder fully plastify blended after extrude, granulation, get product.
Claims (6)
1. the PC/PET alloy that an ageing-resistant performance is excellent, it is characterized in that, its component by mass percent proportioning is: PC 40% ~ 60%, PET 20% ~ 30%, photostabilizer 0.5% ~ 2%, filler 5% ~ 15%, coupling agent 0.1% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.5% ~ 1%, toughner 2% ~ 10%, compatilizer 2% ~ 5%, other auxiliary agent 0 ~ 1%.
2. the PC/PET alloy that a kind of ageing-resistant performance according to claim 1 is excellent, is characterized in that, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and GW-622 of mass ratio 1:1.
3. the PC/PET alloy that a kind of ageing-resistant performance according to claim 1 is excellent, is characterized in that, described filler is the water-ground limestone that particle diameter is less than 5 μm.
4. the PC/PET alloy that a kind of ageing-resistant performance according to claim 1 is excellent, is characterized in that, described toughner is ethylene-methyl acrylate-glyceryl methacrylate (E-MA-GMA).
5. the PC/PET alloy that a kind of ageing-resistant performance according to claim 1 is excellent, is characterized in that, described compatilizer is styrene-maleic anhydride copolymer (SMA).
6. the preparation method of the PC/PET alloy that a kind of ageing-resistant performance according to claim 1 is excellent, is characterized in that, comprise the following steps:
(1), by PC in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, filler at 60 DEG C ~ 80 DEG C dry 30 ~ 45 minutes, stand-by;
(2), dry filler and coupling agent is taken by weight ratio, add sonic oscillation producer or rotating speed is not less than in the high-speed mixer of 3000 revs/min, stir 15 ~ 40 minutes at 80 DEG C ~ 120 DEG C temperature, obtain the filler of surface activation process, then be cooled to lower than 40 DEG C of dischargings, stand-by;
(3) filler of the surface activation process, the PET and step (2) that take drying by weight ratio obtained adds in high-speed mixer, add the photostabilizer, oxidation inhibitor, the lubricant that take by weight ratio simultaneously, after to make to stir together 2 ~ 10 minutes all mixed, discharging add in twin screw extruder carry out melt extruding, granulation, and dry rear obtained PET master batch, stand-by;
(4), PET master batch obtained to the PC and step (3) that take drying is by weight ratio added in high-speed mixer, add toughner, compatilizer, other auxiliary agent of taking by weight ratio simultaneously, after to make to stir together 3 ~ 15 minutes all mixed, discharging adds in twin screw extruder, by twin screw extruder fully plastify blended after extrude, granulation, get product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639558.XA CN104693724A (en) | 2013-12-04 | 2013-12-04 | PC/PET alloy with excellent aging resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639558.XA CN104693724A (en) | 2013-12-04 | 2013-12-04 | PC/PET alloy with excellent aging resistance |
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| Publication Number | Publication Date |
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| CN104693724A true CN104693724A (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310639558.XA Pending CN104693724A (en) | 2013-12-04 | 2013-12-04 | PC/PET alloy with excellent aging resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927336A (en) * | 2015-07-15 | 2015-09-23 | 上海锦湖日丽塑料有限公司 | PC/SMA material with hygrothermal aging resistance and high PU foam bonding strength |
| CN109721988A (en) * | 2017-10-31 | 2019-05-07 | 合肥杰事杰新材料股份有限公司 | Low smell PC/ saturated polyester alloy material of the low warpage of circuit breaker handle Special high-strength high-temperature resistant high tenacity and preparation method thereof |
-
2013
- 2013-12-04 CN CN201310639558.XA patent/CN104693724A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927336A (en) * | 2015-07-15 | 2015-09-23 | 上海锦湖日丽塑料有限公司 | PC/SMA material with hygrothermal aging resistance and high PU foam bonding strength |
| CN104927336B (en) * | 2015-07-15 | 2016-08-17 | 上海锦湖日丽塑料有限公司 | A kind of wet and heat ageing resistant, high PU foam bond strength PC/SMA material |
| CN109721988A (en) * | 2017-10-31 | 2019-05-07 | 合肥杰事杰新材料股份有限公司 | Low smell PC/ saturated polyester alloy material of the low warpage of circuit breaker handle Special high-strength high-temperature resistant high tenacity and preparation method thereof |
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Application publication date: 20150610 |