Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High comparative tracking index value flame-retardant and reinforced polybutylene terephthalate material and preparation method and application thereof

A polybutylene terephthalate, flame retardant technology, applied in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of high price, poor mechanical properties, harsh injection molding conditions, etc. CTI value, reduced formation, reduced free radical generation effect

Active Publication Date: 2012-08-22
GUANGZHOU SUPER DRAGON ENG PLASTICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Halogen-free flame-retardant GF-reinforced PBT engineering plastics have a high CTI value, but have the disadvantages of poor mechanical properties of the material, extremely harsh injection molding conditions and high prices

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High comparative tracking index value flame-retardant and reinforced polybutylene terephthalate material and preparation method and application thereof
  • High comparative tracking index value flame-retardant and reinforced polybutylene terephthalate material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) 1860g PBT (produced by Jiangsu Yizheng Chemical Industry), 320g brominated styrene (BPS) (Japan Daiichi Industrial Pharmaceutical Co.), 200g antimony trioxide (Beijing Xingbeida Trading Company), 80g talcum powder (Foshan Chengji) Chemical Trading Company), 200g PTW (DuPont, USA), 120g CTI synergist (sodium metaborate and titanium dioxide with a particle size of 30-100nm are mixed in a mass ratio of 1:1, the same below), 4g antioxidant 1076 (BASF Company), 4g antioxidant 168 (Basf Corporation) and 12g ethylene bis stearic acid amide (EBS) are mixed 3min in high-speed mixer at 800rpm with rotating speed, obtain the compound that mixes;

[0065] (2) Add the compound obtained in step (1) from the main feeding port of the twin-screw extruder (diameter is 35mm, aspect ratio 40), and 1200g chopped glass fibers (alkali-free, Chongqing International Composite Material Co., Ltd.) from the twin-screw extruder The second feeding port of the screw extruder is added, mixed evenl...

Embodiment 2

[0068] (1) 1740g PBT (produced by Jiangsu Yizheng Chemical Co., Ltd.), 400g brominated styrene (BPS) (Japan Daiichi Industrial Pharmaceutical Company), 160g antimony trioxide (Beijing Xingbeida Trading Company), 80g talcum powder (Foshan Chengji) Chemical Trading Company), 200g MBS (Dow Company), 200g CTI synergist, 4g antioxidant 1076 (BASF), 4g antioxidant 168 (BASF) and 12g EBS are 800rpm high speed mixing 10min with rotating speed, obtain a well-mixed mixture;

[0069] (2) Add the compound obtained in step (1) from the main feeding port of the twin-screw extruder (diameter is 35mm, aspect ratio 40), and 1200g chopped glass fibers (alkali-free, Chongqing International Composite Material Co., Ltd.) from the twin-screw extruder The second feeding port of the screw extruder is added, mixed evenly in the twin-screw extruder, and then extruded and pelletized to obtain a high CTI value flame-retardant reinforced polybutylene terephthalate material. The processing conditions of t...

Embodiment 3

[0072] (1) 1620g PBT (produced by Jiangsu Yizheng Chemical Industry), 480g brominated styrene (BPS) (Japan Daiichi Industrial Pharmaceutical Co.), 120g antimony trioxide (Beijing Xingbeida Trading Company), 80g talcum powder (Foshan Chengji) Chemical Trading Company), 200g PE-MAH (Shenyang Ketong Company), 280g CTI synergist, 4g antioxidant 1076 (BASF), 4g antioxidant 168 (BASF) and 12g EBS with a rotating speed of 800rpm high-speed mixing 10min, obtain the mixture that mixes homogeneously;

[0073] (2) Add the compound obtained in step (1) from the main feeding port of the twin-screw extruder (diameter is 35mm, aspect ratio 40), and 1200g chopped glass fibers (alkali-free, Chongqing International Composite Material Co., Ltd.) from the twin-screw extruder The second feeding port of the screw extruder is added, mixed evenly in the twin-screw extruder, and then extruded and pelletized to obtain a high CTI value flame-retardant reinforced polybutylene terephthalate material. The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
tensile strengthaaaaaaaaaa
impact strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high comparative tracking index (CTI) value flame-retardant and reinforced polybutylene terephthalate material and a preparation method and application thereof. The material comprises the following components by weight percent: 33.5-76% of polybutylene terephthalate, 8-12% of flame retardant, 3-5% of synergetic flame retardant, 10-40% of glass fiber, 0-30% of mineral filler, 0-10% of toughened modifier, 3-7% of CTI synergist, 0-0.2% of antioxidant and 0-0.3% of processing aid. The preparation method is as follows: mixing the components except for glass fiber, and mixing the mixture with glass fiber in a double-screw extruder to obtain the material of the invention. The material of the invention uses bromine-containing fire retardant with high flame retardant efficiency, wide sources, low price and convenient injection moulding as raw material; by modifying the components of the formula, the CTI value of the high CTI value flame-retardant and reinforced polybutylene terephthalate material is up to 600V; and the injection moulding processability is good, the mechanical properties are good and the cost performance is high.

Description

technical field [0001] The invention particularly relates to a flame-retardant reinforced polybutylene terephthalate material with a high CTI value and its preparation method and application, which can be used as an electronic and electrical component material with high flame-retardant performance and good electrical insulation performance, and belongs to the chemical material technology field. Background technique [0002] With the rapid development of the electronic and electrical industry, the demand for flame-retardant engineering plastics with high electrical insulation performance is increasing day by day for industrial appliances, household appliances and automotive appliances. Such as high-voltage electrical switches, transformer coil bobbins, high-temperature-resistant relays, low-voltage vacuum contactors, circuit breakers, etc., all need thermoplastic engineering plastics with high flame retardancy and good electrical insulation performance, that is, higher tracki...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K13/04C08K7/14C08K3/38C08K3/22C08K5/03C08K3/24C08K3/34B29C47/92H01B3/47B29C48/92
CPCB29B9/14B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29C48/04B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92923C08K3/013C08K5/0066C08K7/14C08L23/0884C08L23/26C08L51/04C08L67/02C09K21/14
Inventor 郝源增张海洲郝建鑫王冲任萍
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com