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Flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature

A technology of polybutylene terephthalate and resin composition, which is applied in the field of polymer materials, can solve the problems such as the wide gap of requirements, and achieve the effects of good flame retardant effect, high ignition temperature and good fire resistance.

Active Publication Date: 2009-10-28
南通中蓝工程塑胶有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For enhanced flame-retardant PBT, public information shows that nitrogen-phosphorus-based halogen-free flame-retardant reinforced PBT can reach the requirement of 750°C with a thickness of only 3mm, and cannot meet the requirements of three thicknesses (3mm, 1.5mm, 0.75mm) all above 750°C requirements; and for the currently most widely used brominated flame retardant reinforced PBT system, in the case of adding a sufficient amount of flame retardant, three thicknesses (3mm, 1.5mm, 0.75mm) of brominated flame retardant reinforced PBT GWIT only reaches 675°C, 650°C, and 625°C, which is far from the requirements

Method used

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  • Flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature
  • Flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Dry 85 parts of polybutylene terephthalate (PBT) and 15 parts of high GWIT synergistic resin at 120°C for 2-3 hours, control the moisture content below 0.05%, and mix in a high mixer for 3 minutes; 26 parts of flame retardant, 10 parts of flame retardant synergist antimony trioxide, 2 parts of toughening agent AX8900, 0.3 part of primary antioxidant AT10, 0.3 part of auxiliary antioxidant AT168, 0.4 part of anti-dripping agent PTFE Ethylene is added to the high-speed mixer and mixed at high speed for 5 minutes, and then enters the twin-screw extruder from the metering feeder to be plasticized and melted. strips, cooling, dicing, mixing, and packaging. The pellets were dried in a forced air oven at 120°C for 4 h, and then test specimens were prepared by injection molding machine.

Embodiment 2

[0034] Dry 70 parts of polybutylene terephthalate (PBT) and 30 parts of high GWIT synergistic resin at 120°C for 2-3 hours, control the moisture content below 0.05%, and mix in a high mixer for 3 minutes; 26 parts of flame retardant, 10 parts of flame retardant synergist antimony trioxide, 2 parts of toughening agent AX8900, 0.3 part of primary antioxidant AT10, 0.3 part of auxiliary antioxidant AT168, 0.4 part of anti-dripping agent PTFE Ethylene is added to the high-speed mixer and mixed at high speed for 5 minutes, and then enters the twin-screw extruder from the metering feeder to be plasticized and melted. strips, cooling, dicing, mixing, and packaging. The pellets were dried in a forced air oven at 120°C for 4 h, and then test specimens were prepared by injection molding machine.

Embodiment 3

[0036] Dry 55 parts of polybutylene terephthalate (PBT) and 45 parts of high GWIT synergistic resin at 120°C for 2-3 hours, control the moisture content below 0.05%, and mix in a high mixer for 3 minutes; 26 parts of flame retardant, 10 parts of flame retardant synergist antimony trioxide, 2 parts of toughening agent AX8900, 0.3 part of primary antioxidant AT10, 0.3 part of auxiliary antioxidant AT168, 0.4 part of anti-dripping agent PTFE Ethylene is added to the high-speed mixer and mixed at high speed for 5 minutes, and then enters the twin-screw extruder from the metering feeder to be plasticized and melted. strips, cooling, dicing, mixing, and packaging. The pellets were dried in a forced air oven at 120°C for 4 h, and then test specimens were prepared by injection molding machine.

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PUM

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Abstract

The invention discloses a flame-retardant polybutylece terephthalate resin composition with high glow wire ignition temperature, which consists of polybutylece terephthalate, a synergistic resin with high GWIT, a flame retardant, a flame-retardant synergistic agent, an inorganic filler, a toughener, a main antioxidant, an auxiliary antioxidant, an anti-dripping agent, and glass fiber. The composition has good flame-retardant effect and fireproof performance, and high glow wire ignition temperature.

Description

Technical field: [0001] The invention relates to the field of polymer materials, which is a resin composition. Background technique: [0002] PBT (reinforced, modified PBT) is mainly used in the fields of automobile, electronic appliances, machinery industry and so on. Among them, the components used in the electronic and electrical industry mainly include the deflection frame of the TV, the frame of the output transformer, the switch connector, the end cover of the motor of the refrigerator, and the washing machine, etc. Some components in these electronic products will cause local overheating and may cause combustion due to poor contact, overload or short circuit, which endangers the safe operation of the entire system. To prevent problems before they happen, the fire hazard of components, parts and components in electronic and electrical products must be reduced to a certain extent. test, GWIT) must reach three thicknesses (3mm, 1.5mm, 0.75mm) and all must be above 750°...

Claims

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Application Information

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IPC IPC(8): C08L67/02C09K13/06C08L77/00C08L69/00C08L71/12
Inventor 杨蓓蓓姚君戴伍国顾春辉薛东升
Owner 南通中蓝工程塑胶有限公司
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