CN102898796A - High-electrical-property polybutylene terephthalate (PBT) and preparation process thereof - Google Patents
High-electrical-property polybutylene terephthalate (PBT) and preparation process thereof Download PDFInfo
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- CN102898796A CN102898796A CN2012104384853A CN201210438485A CN102898796A CN 102898796 A CN102898796 A CN 102898796A CN 2012104384853 A CN2012104384853 A CN 2012104384853A CN 201210438485 A CN201210438485 A CN 201210438485A CN 102898796 A CN102898796 A CN 102898796A
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Abstract
The invention relates to an organic polymer composite, in particular to high-electrical-property polybutylene terephthalate (PBT) and a preparation process thereof. The high-electrical-property PBT consists of the following components in percentage by weight: 40 to 90 percent of PBT, 1 to 3 percent of styrene maleic anhydride (SMA), 1 to 35 percent of halogen-free mica micro films, 1 to 30 percent of halogen-free glass micro-balloons, 1 to 5 percent of a toughening agent, 0.1 to 0.4 percent of a coupling agent, and 0.1 to 5.5 percent of other auxiliary agents. According to the halogen-free buckling-deformation-resistant high-electrical-property PBT and the preparation process thereof, the buckling deformation resistance and high electrical property are increased on the basis of excellent comprehensive mechanical properties, and the PBT is halogen-free, is convenient to produce and purchase and meets all other environmental protection requirements, so that the comprehensive competitiveness is improved.
Description
Technical field
1, the present invention relates to a kind of organic polymer composite, more particularly, relate to a kind of high electrical performance PBT and manufacture craft thereof.
Background technology
2, PBT uses one of maximum several engineering plastics at present, he has good forming process, crystallization velocity is fast, the product surface good luster, size is more stable, and water-intake rate is lower, chemicals-resistant and oil-proofness are good, particularly arc resistance is good, for the Other Engineering plastics can't be obtained, these Comprehensive Characteristics make it be widely used in the industries such as electric and electronic automobile mechanical instrument and do structural part.But along with social development, every technology is maked rapid progress, and the electrical property excellent characteristics of PBT resin can not satisfy product requirement more multi-field, and the structure design that becomes increasingly complex, and also requires starting material to possess better dimensional stability and forming process.Therefore, launched PBT is carried out composite modified research.And American-European/Japan etc. developed country has started all restrictions of foreign imported product for various reasons at present, has set up a series of barrier, wherein, to the material Halogen-free requirement of electric equipment products, is exactly one of them.The present technique invention produces in order effectively to overcome this phenomenon.
Summary of the invention
3, the object of the invention is to effectively overcome the defective of prior art, a kind of material is provided, and Halogen and comprehensive mechanical performance have not kept increasing on the good basis halogen-free warp-resistant PBT of excellent electrical properties raw material of the good and high electrical performance of anti-buckling deformation.
4, technical scheme provided by the invention is as follows: a kind of halogen-free warp-resistant PBT of excellent electrical properties raw material of the present invention is made of PBT:40-90% by weight following composition; SMA:1-3%; Halogen mica microplate: 1-35%; Halogen glass microballon: 1-30%; Toughner: 1-5%; Coupling agent: 0.1-0.4%; Other auxiliary agents: 0.1-5.5%.
5, halogen-free warp-resistant PBT of excellent electrical properties material preparation method of the present invention, comprise the steps: first PBT to be dried, Halogen mica microplate is according to 55 degree preheatings, then the PBT after will drying, SMA, the Halogen glass microballon, toughner, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, in proportion add Halogen mica microplate slow speed of revolution mixing extrusion by the side through twin screw extruder in the screw combinations situation that medium tenacity is sheared again, the water cooling bracing pelletizing makes the halogen-free warp-resistant PBT of excellent electrical properties material through screening and dewatering.
6, the present invention has effectively overcome the defective of prior art, has the following advantages:
7, a kind of halogen-free warp-resistant PBT of excellent electrical properties of the present invention and manufacture craft thereof, anti-buckling deformation and high electrical performance have been increased on the good basis of comprehensive mechanical performance, and it is not halogen-containing, and production procurement is convenient, simultaneously also meet other all environmental requirement, improved like this synthesized competitiveness.
Embodiment
8, be the most preferred embodiment of halogen-free warp-resistant PBT of excellent electrical properties raw material of the present invention below, therefore do not limit protection scope of the present invention.
9, embodiment one, and a kind of halogen-free warp-resistant PBT of excellent electrical properties raw material of the present invention is made of PBT:49.1%, SMA:1.5% by weight following composition; Halogen mica microplate: 30%; Halogen glass microballon: 15%: toughner: 3%; Coupling agent: 0.2%; Other auxiliary agents: 1.2%;
10, first PBT is dried, Halogen mica microplate is according to 55 degree preheatings, then PBT, the SMA after will drying, Halogen glass microballon, toughner, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, mixer adopts low speed mixing, paddle should with the barrel gap less than 0.5 centimetre, the supplementary material mixed effect should visual various particles and powder substantially even, do not have obvious agglomerate or gather; Twin screw extruder uses 36 length-to-diameter ratios, the combination of medium tenacity shear screw, and setting is not higher than 200 rev/mins rotating speed; Halogen mica microplate is added in proportion by the side; Adopt water cooling bracing pelletizing mode, namely make the halogen-free warp-resistant PBT of excellent electrical properties material through screening and dewatering.
Claims (2)
1. a high electrical performance PBT and manufacture craft thereof is characterized in that: be made of by weight PBT:40-90% following composition; SMA:1-3%; Halogen mica microplate: 1-35%; Halogen glass microballon: 1-30%; Toughner: 1-5%; Coupling agent: 0.1-0.4%; Other auxiliary agents: 0.1-5.5%.
2. a high electrical performance PBT and manufacture craft thereof, it is characterized in that: comprise the steps: first PBT to be dried, Halogen mica microplate is according to 55 degree preheatings, then PBT, the SMA after will drying, Halogen glass microballon, toughner, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, in proportion add Halogen mica microplate slow speed of revolution mixing extrusion by the side through twin screw extruder in the screw combinations situation that medium tenacity is sheared again, the water cooling bracing pelletizing makes the halogen-free warp-resistant PBT of excellent electrical properties material through screening and dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104384853A CN102898796A (en) | 2012-11-05 | 2012-11-05 | High-electrical-property polybutylene terephthalate (PBT) and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104384853A CN102898796A (en) | 2012-11-05 | 2012-11-05 | High-electrical-property polybutylene terephthalate (PBT) and preparation process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102898796A true CN102898796A (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104384853A Pending CN102898796A (en) | 2012-11-05 | 2012-11-05 | High-electrical-property polybutylene terephthalate (PBT) and preparation process thereof |
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| CN (1) | CN102898796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438935A (en) * | 2018-12-12 | 2019-03-08 | 苏州工业园区科创橡塑有限公司 | High electrical performance anti-buckling deformation PBT material manufacture craft |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4500679A (en) * | 1982-08-09 | 1985-02-19 | Monsanto Company | Polyblends of thermoplastic copolyetheresters styrene-maleic anhydride polymers, and acrylonitrile-butadiene-styrene polymers |
| NL1005928C2 (en) * | 1997-04-29 | 1998-11-02 | Dsm Nv | Copolymers, used as e.g. compatibilisers, bonding agents or coating enhancing agents |
| CN101759967A (en) * | 2009-11-13 | 2010-06-30 | 苏州市科创聚合物有限公司 | Halogen-free warp-resistant PBT of excellent electrical properties and preparing technique thereof |
-
2012
- 2012-11-05 CN CN2012104384853A patent/CN102898796A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4500679A (en) * | 1982-08-09 | 1985-02-19 | Monsanto Company | Polyblends of thermoplastic copolyetheresters styrene-maleic anhydride polymers, and acrylonitrile-butadiene-styrene polymers |
| NL1005928C2 (en) * | 1997-04-29 | 1998-11-02 | Dsm Nv | Copolymers, used as e.g. compatibilisers, bonding agents or coating enhancing agents |
| CN101759967A (en) * | 2009-11-13 | 2010-06-30 | 苏州市科创聚合物有限公司 | Halogen-free warp-resistant PBT of excellent electrical properties and preparing technique thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438935A (en) * | 2018-12-12 | 2019-03-08 | 苏州工业园区科创橡塑有限公司 | High electrical performance anti-buckling deformation PBT material manufacture craft |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |