CN1086404C - Impact-resistant polyester (PET) mixture and preparing process thereof - Google Patents
Impact-resistant polyester (PET) mixture and preparing process thereof Download PDFInfo
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- CN1086404C CN1086404C CN98102049A CN98102049A CN1086404C CN 1086404 C CN1086404 C CN 1086404C CN 98102049 A CN98102049 A CN 98102049A CN 98102049 A CN98102049 A CN 98102049A CN 1086404 C CN1086404 C CN 1086404C
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- thermoplastic elastomer
- maleic anhydride
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Abstract
The present invention relates to a mixture of polyester PET and polyolefin thermoplastic elastomers POE grafted by maleic anhydride. The present invention comprises 70 to 85 shares of polyethylene terephthalate and 15 to 30 shares of the polyolefin thermoplastic elastomers grafted by maleic anhydride. The present invention has the impact strength of 600 to 900 J/m.
Description
The present invention relates to a kind of polyethylene terephthalate (PET) blend, specially refer to the blend of a kind of PET and thermoplastic elastomer.
PET is owing to have a better heat-resisting, good solubility-resistence and lower price and demonstrate wide application prospect.But it has shortcoming clearly simultaneously again, promptly slower crystallization rate and lower shock strength, thus limited its use in the engineering plastics field.
Patent US 4,845, and 169 use polyester-polyether elastomer PEE and triphenyl phosphorus modified PET, obtain PET shock strength 111J/m, tensile strength 66MPa, and modulus in flexure 5.2MPa, its shock strength is still not high enough.Patent US 4,895, and 899 PET comprises PET, polyethylene (PE), and polycarbonate (PC) and styrene-propene acid grafting EPDM obtain than high impact.Patent US 4,897, and 448 by adding poly terephthalic acid cyclohexyl (PCT), and PC and EPR improve the impact property of PET.
Purpose of the present invention is to overcome the low shortcoming of PET shock strength in the prior art, and a kind of PET blend than high impact property of having that uses the thermoplastic elastomer modification is provided.
The component and the content of PET blend of the present invention are as follows: (1) polyethylene terephthalate (PET) 70-85 part (2) maleic anhydride graft polyolefine thermoplastic elastomer (MAH-g-POE) 15-30 part
Above-mentioned PET intrinsic viscosity is at 0.7-1.0dl/g.
Above-mentioned polyolefine thermoplastic elastomer (POE) is the multipolymer of ethene and octene, and therein ethylene content is 65%-80%, and elastomeric melting index (MFI) is 0.5-5.0g/10min.
POE is a key character of the present invention with maleic anhydride (MAH) grafting.The maleic anhydride graft of POE is the melt grafting.
The preparation method of anti-impact polyester of the present invention (PET) is as follows: (1) is with 100 parts POE and the maleic anhydride (MAH) of 2-4 part, 0.05-0.4 part benzoyl peroxide (DCP) thorough mixing after in 160-180 ℃, extruding pelletization under the 30rpm obtains the MAH grafting POE (MAH-g-POE) of different MAH percentage of grafting.(2) with the PET of 70-85 part in 130 ℃ of dryings of vacuum drying oven after 8 hours, do with the MA-g-POE of 15-30 part and to mix, in twin screw extruder 220-270 ℃ then, extrude the water-cooled pelletizing under the 50rpm.
Behind above-mentioned blend pellet vacuum drying, be injection molded into standard Mechanics Performance Testing batten in 260-270 ℃, test by national standard, record PET blend shock strength at 600-900J/m.
Embodiment 1
Be 0.5 POE with 100 parts of MFI with after 3 parts of MAH and 0.2 part of DCP mix, in 180 ℃, extruding pelletization under the 30rpm obtains MAH-g-POE.85 parts of PET in 130 ℃ of dryings of vacuum drying oven after 8 hours, are done with 15 parts of MA-g-POE earlier and mix, in twin screw extruder 220-270 ℃ then, extrude the water-cooled pelletizing under the 50rpm.Behind the vacuum drying, be injection molded into standard in 270 ℃ and impact batten.Test result sees Table 1.
Embodiment 2
Be 0.5 POE with 100 parts of MFI with after 3 parts of MAH and 0.2 part of DCP mix, in 180 ℃, extruding pelletization under the 30rpm obtains MAH-g-POE.70 parts of PET in 130 ℃ of dryings of vacuum drying oven after 8 hours, are done with 30 parts MA-g-POE earlier and mix, in twin screw extruder 220-270 ℃ then, extrude the water-cooled pelletizing under the 50rpm.Behind the vacuum drying, be injection molded into standard in 270 ℃ and impact batten.Test result sees Table 1.
Embodiment 3
Be 2.5 POE with 100 parts of MFI with after 3 parts of MAH and 0.2 part of DCP mix, in 180 ℃, extruding pelletization under the 30rpm obtains MAH-g-POE.70 parts of PET in 130 ℃ of dryings of vacuum drying oven after 8 hours, are done with 30 parts MA-g-POE earlier and mix, in twin screw extruder 220-270 ℃ then, extrude the water-cooled pelletizing under the 50rpm.Behind the vacuum drying, be injection molded into standard in 270 ℃ and impact batten.Test result sees Table 1.
Table one embodiment PET MAH-g-POE Impact Strength
(POE?MFI?0.5)(POE?MFI?2.5) (J/m) 1 85 15 758 2 70 30 864 3 70 30 623
Claims (5)
1. the preparation method of a PET blend is characterized in that being undertaken by following step:
(1) by weight with 100 parts polyolefine thermoplastic elastomer and the maleic anhydride of 2-4 part, in 160-180 ℃, extruding pelletization under the 30rpm obtains maleic anhydride graft polyolefine thermoplastic elastomer behind the benzoyl peroxide thorough mixing of 0.05-0.4 part,
(2) with the PET of 70-85 part in 130 ℃ of dryings of vacuum drying oven after 8 hours, with the above-mentioned maleic anhydride graft polyolefine thermoplastic elastomer of 15-30 part in twin screw extruder 220-270 ℃, under the 50rpm blend extrude, granulation.
2. require the preparation method of described PET blend according to right 1, the intrinsic viscosity that it is characterized in that described PET is 0.7-1.0dl/g.
3. require the preparation method of described PET blend according to right 1, it is characterized in that described polyolefine thermoplastic elastomer is the multipolymer of ethene and octene.
4. require the preparation method of described PET blend according to right 3, it is characterized in that ethylene content is 65%-80% in the described multipolymer.
5. require the preparation method of described PET blend according to right 3, the melting index that it is characterized in that described multipolymer is 0.5-5.0g/10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102049A CN1086404C (en) | 1998-06-05 | 1998-06-05 | Impact-resistant polyester (PET) mixture and preparing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102049A CN1086404C (en) | 1998-06-05 | 1998-06-05 | Impact-resistant polyester (PET) mixture and preparing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1238356A CN1238356A (en) | 1999-12-15 |
| CN1086404C true CN1086404C (en) | 2002-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98102049A Expired - Fee Related CN1086404C (en) | 1998-06-05 | 1998-06-05 | Impact-resistant polyester (PET) mixture and preparing process thereof |
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| Country | Link |
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| CN (1) | CN1086404C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154733A (en) * | 2011-03-09 | 2011-08-17 | 宁波大发化纤有限公司 | Blended fiber of polyethylene terephthalate and polyethylene and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234414A (en) * | 2010-05-07 | 2011-11-09 | 财团法人塑胶工业技术发展中心 | Toughened poly(ethylene terephthalate)/polycarbonate composition |
| CN108641309A (en) * | 2018-04-25 | 2018-10-12 | 横店集团得邦工程塑料有限公司 | A kind of relay halogen-free enhanced flame-retardant PBT material and preparation method thereof |
| CN108530848A (en) * | 2018-04-25 | 2018-09-14 | 横店集团得邦工程塑料有限公司 | High thermal deformation basalt fibre enhancing halogen-free flameproof PET material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01201359A (en) * | 1988-02-05 | 1989-08-14 | Unitika Ltd | Resin composition for extruded sheet |
| JPH01201360A (en) * | 1988-02-05 | 1989-08-14 | Unitika Ltd | Resin composition for extruded sheet |
| JPH03285940A (en) * | 1990-04-02 | 1991-12-17 | Mitsui Petrochem Ind Ltd | Polyolefin resin composition |
| CN1017812B (en) * | 1987-11-13 | 1992-08-12 | 克罗瑞德无嗓音电源有限公司 | Deposition apparatus |
| CN1135228A (en) * | 1993-10-04 | 1996-11-06 | 伊斯曼化学公司 | Concentrates for improving polyester compositions and method of making same |
| JP3285940B2 (en) * | 1992-07-24 | 2002-05-27 | 松下電工株式会社 | lighting equipment |
-
1998
- 1998-06-05 CN CN98102049A patent/CN1086404C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1017812B (en) * | 1987-11-13 | 1992-08-12 | 克罗瑞德无嗓音电源有限公司 | Deposition apparatus |
| JPH01201359A (en) * | 1988-02-05 | 1989-08-14 | Unitika Ltd | Resin composition for extruded sheet |
| JPH01201360A (en) * | 1988-02-05 | 1989-08-14 | Unitika Ltd | Resin composition for extruded sheet |
| JPH03285940A (en) * | 1990-04-02 | 1991-12-17 | Mitsui Petrochem Ind Ltd | Polyolefin resin composition |
| JP3285940B2 (en) * | 1992-07-24 | 2002-05-27 | 松下電工株式会社 | lighting equipment |
| CN1135228A (en) * | 1993-10-04 | 1996-11-06 | 伊斯曼化学公司 | Concentrates for improving polyester compositions and method of making same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154733A (en) * | 2011-03-09 | 2011-08-17 | 宁波大发化纤有限公司 | Blended fiber of polyethylene terephthalate and polyethylene and preparation method thereof |
| CN102154733B (en) * | 2011-03-09 | 2013-07-03 | 宁波大发化纤有限公司 | Blended fiber of polyethylene terephthalate and polyethylene and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1238356A (en) | 1999-12-15 |
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