Environment-friendly and flame-retardant glass fiber reinforced PA (polyamide) 66/PPO (polyphenylene oxide) alloy material with high CTI (comparative tracking index) value and high GWIT (glow-wire ignition temperature) value and preparation method thereof

An alloy material and environmental protection technology, applied in the field of alloy materials, can solve problems such as low flame retardant precipitation, and achieve the effects of improving impact performance, improving oxidation resistance and stable quality

Inactive Publication Date: 2014-11-19
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared alloy composition has the advantages of high CTI value and low flame retardant precipitation, but there is no report on the alloy material that combines the advantages of high GWIT value, high CTI value, environmental protection, and comprehensive performance balance.

Method used

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  • Environment-friendly and flame-retardant glass fiber reinforced PA (polyamide) 66/PPO (polyphenylene oxide) alloy material with high CTI (comparative tracking index) value and high GWIT (glow-wire ignition temperature) value and preparation method thereof
  • Environment-friendly and flame-retardant glass fiber reinforced PA (polyamide) 66/PPO (polyphenylene oxide) alloy material with high CTI (comparative tracking index) value and high GWIT (glow-wire ignition temperature) value and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Preparation of PA66 / PPO alloy material (1)

[0040]The intrinsic viscosity of PPO is 1.0 dl / g. The composite flame retardant is composed of 50% by weight of BPS, 25% of magnesium hypophosphite and 25% of talcum powder. The surface of glass fiber is treated with silane coupling agent. Alkali-free glass fiber, the compatibilizer is maleic anhydride grafted PPO, the antioxidant is antioxidant 1330, and the oxide is iron oxide.

[0041] Weigh each raw material component according to the following weight percentage: PA66 23%, PPO 22%, compound flame retardant 20%, antimony trioxide 4%, glass fiber 20%, compatibilizer 10%, antioxidant 0.1%, oxide 0.9%. Put the weighed raw materials into a high mixer, mix for 2 minutes, discharge, and then extrude and granulate with a twin-screw extruder; the processing temperature of the twin-screw extruder is 240-260°C, The machine includes nine temperature zones, one of which is 240°C for the first stage, 240°C for the second s...

Embodiment 2

[0042] Example 2 Preparation of PA66 / PPO Alloy Material (2)

[0043] The intrinsic viscosity of PPO is 0.6 dl / g. The composite flame retardant is composed of 50% by weight of BPS, 25% of magnesium hypophosphite and 25% of talcum powder. The surface of glass fiber is treated with silane coupling agent. Alkali-free glass fiber, the compatibilizer is maleic anhydride grafted PPO, the antioxidant is antioxidant 1010, and the oxide is iron oxide.

[0044] The raw material components were weighed according to the following weight percentages: PA66 41%, PPO 22%, compound flame retardant 6%, antimony trioxide 3%, glass fiber 20%, compatibilizer 6%, antioxidant 1%, oxide 1%. Put the weighed raw materials into a high-mixer, mix for 5 minutes, discharge, and then extrude and granulate with a twin-screw extruder; the processing temperature of the twin-screw extruder is 240-260°C. The machine includes nine temperature zones, one of which is 240°C for the first stage, 240°C for the seco...

Embodiment 3

[0045] Example 3 Preparation of PA66 / PPO Alloy Material (3)

[0046] The intrinsic viscosity of PPO is 1 dl / g. The composite flame retardant is composed of 50% by weight of BPS, 25% of magnesium hypophosphite and 25% of talcum powder. The compatibilizer is maleic anhydride grafted polyphenylene Ethylene, the antioxidant is antioxidant 1330, and the oxide is alumina.

[0047] The raw material components were weighed according to the following weight percentages: PA66 23%, PPO 23%, compound flame retardant 6%, antimony trioxide 15%, glass fiber 30%, compatibilizer 2%, antioxidant 0.9%, oxide 0.1%. Put the weighed raw materials into a high-mixer, mix for 3 minutes, discharge, and then extrude and granulate with a twin-screw extruder; the processing temperature of the twin-screw extruder is 240-260°C. The machine includes nine temperature zones, one of which is 240°C for the first stage, 240°C for the second stage, 260°C for the third stage, 260°C for the fourth stage, 260°C f...

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Abstract

The invention discloses an environment-friendly and flame-retardant glass fiber reinforced PA (polyamide) 66 / PPO (polyphenylene oxide) alloy material with high CTI (comparative tracking index) value and high GWIT (glow-wire ignition temperature) value. The alloy material comprises the following raw components in percentage by weight: 23-41% of PA66, 22-41% of PPO, 6-20% of compound flame retardant, 3-15% of antimony trioxide, 20-30% of glass fiber, 2-10% of compatilizer, 0.1-1% of antioxidant and 0.1-1% of oxide, wherein the compound flame retardant comprises brominated polystyrene, magnesium hypophosphite and talcum powder. The invention also provides a preparation method of the alloy material. The alloy material has high GWIT value and CTI value and good flame retardant effect, is environment-friendly, has balanced overall performances and can be widely applied to such products in the field of electronics as low-voltage electronic capacitor shells, load break switches, carbon brush brackets and moulded case circuit breakers.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to an environmentally friendly flame-retardant glass fiber reinforced PA66 / PPO alloy material with high CTI value and high GWIT value and a preparation method thereof. Background technique [0002] Nylon (Nylon), Chinese name polyamide, English name Polyamide (referred to as PA), is a general term for thermoplastic resins containing repeated amide groups—[NHCO]—on the main molecular chain. Its name depends on the number of carbon atoms in the synthetic monomer, such as: polycaprolactam (nylon 6, referred to as PA6), polyhexamethylene adipamide (nylon 66, referred to as PA66), polydecanediamine sebacate (nylon 1010, referred to as PA1010), polyhexamethylene sebacamide (nylon 610, referred to as PA610), polyundecamide (nylon 11, referred to as PA11), polydodecamide (nylon 12, referred to as PA12), polyadipamide Diamine (Nylon 46, referred to as PA46). PA has high crystallini...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L71/12C08L25/06C08K13/06C08K9/06C08K7/14C08K3/22C08K3/32C08K3/34C08K5/13B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40C08K3/2279C08K3/32C08K3/346C08K5/13C08K9/06C08L25/18C08L51/06C08L71/12C08L77/06C09K21/14
Inventor 郭建鹏汤俊杰
Owner SHANGHAI SUNNY
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