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High-CTI (Creepage Tracking Index) high-GWIT (Glow-Wire Ignition Temperature) environmental-friendly flame-retardant glass fiber reinforced PP/PPO (Polypropylene/Polyphenylene Oxide) alloy material and preparation method thereof

An alloy material and an environmentally friendly technology, which is applied in the field of environmentally friendly flame-retardant glass fiber reinforced PP/PPO alloy materials and their preparation, to achieve the effects of improving impact performance, high CTI value, and improving oxidation resistance

Inactive Publication Date: 2013-02-27
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there is no report on the environmentally friendly flame-retardant glass fiber reinforced PP / PPO alloy material with high CTI value and high GWIT value and excellent comprehensive performance.

Method used

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  • High-CTI (Creepage Tracking Index) high-GWIT (Glow-Wire Ignition Temperature) environmental-friendly flame-retardant glass fiber reinforced PP/PPO (Polypropylene/Polyphenylene Oxide) alloy material and preparation method thereof
  • High-CTI (Creepage Tracking Index) high-GWIT (Glow-Wire Ignition Temperature) environmental-friendly flame-retardant glass fiber reinforced PP/PPO (Polypropylene/Polyphenylene Oxide) alloy material and preparation method thereof
  • High-CTI (Creepage Tracking Index) high-GWIT (Glow-Wire Ignition Temperature) environmental-friendly flame-retardant glass fiber reinforced PP/PPO (Polypropylene/Polyphenylene Oxide) alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1 Preparation of PP / PPO alloy material of the present invention (1)

[0061] Weigh raw materials by weight percentage: PP 25%, PPO (intrinsic viscosity: 1.0dl / g) 25.1%, compound flame retardant 12%, antimony trioxide 4%, alkali-free glass treated with silane coupling agent Fiber 30%, maleic anhydride grafted SEBS 3%, antioxidant 1330 0.4%, iron oxide 0.5%; put the weighed raw materials into a high mixer and mix for 5 minutes, and discharge; extrude with a twin-screw extruder For granulation, the processing temperature is 220-240°C, the screw speed is 35HZ, and the specific processing conditions are shown in the table below.

[0062]

Embodiment 2

[0063] Example 2 Preparation of PP / PPO alloy material of the present invention (2)

[0064] Weigh raw materials by weight percentage: PP 25%, PPO (intrinsic viscosity: 1.0dl / g) 23%, compound flame retardant 12%, antimony trioxide 4%, alkali-free glass treated with silane coupling agent Fiber 30%, maleic anhydride grafted SEBS 5%, antioxidant 1330 0.4%, iron oxide 0.6%; put the weighed raw materials into a high mixer and mix for 2 minutes, and discharge; extrude with a twin-screw extruder For granulation, the processing temperature is 220-240°C, the screw speed is 35HZ, and the specific processing conditions are shown in the table below.

[0065]

Embodiment 3

[0066] Example 3 Preparation of PP / PPO alloy material of the present invention (3)

[0067] Weigh raw materials by weight percentage: PP 23%, PPO (intrinsic viscosity: 1.0dl / g) 22%, compound flame retardant 20%, antimony trioxide 4.3%, alkali-free glass treated with silane coupling agent Fiber 20%, maleic anhydride grafted SEBS 10%, antioxidant 1330 0.1%, iron oxide 0.6%; put the weighed raw materials into a high mixer and mix for 2 minutes, and discharge; extrude with a twin-screw extruder For granulation, the processing temperature is 220-240°C, the screw speed is 30HZ, and the specific processing conditions are shown in the table below.

[0068]

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Abstract

The invention provides a high-CTI (Creepage Tracking Index) high-GWIT (Glow-Wire Ignition Temperature) environmental-friendly flame-retardant glass fiber reinforced PP / PPO (Polypropylene / Polyphenylene Oxide) alloy material which is prepared from the following raw materials in percentage by weight: 23%-41% of PP, 22%-41% of PPO, 6%-20% of compound flame retardant, 3%-15% of antimony trioxide, 20%-30% of glass fibers, 2%-10% of compatilizer, 0.1%-1% of antioxidant and 0.1%-1% of oxide, wherein the compound flame retardant contains the following materials in percentage by weight: 50% of BPS (Brominated Polystyrene), 25% of magnesium hypophosphite and 25% of talcum powder. The invention also provides a preparation method of the high-CTI high-GWIT environmental-friendly flame-retardant glass fiber reinforced PP / PPO alloy material. The high-CTI value high-GWIT value environmental-friendly flame-retardant glass fiber reinforced PP / PPO alloy material provided by the invention has the advantages that the GWIT value is increased by 50-100 DEG C by adoption of a novel flame-retardant compounding system, so that the material can pass 850 DEG C glow-wire test; the GWIT value is also obviously increased through the addition of the glass fibers; in addiiton, impact property and ageing-resistant property are improved, processing fluidity and smoothness are increased and friction factor is lowered.

Description

technical field [0001] The invention relates to an environmentally friendly flame-retardant glass fiber reinforced PP / PPO alloy material and a preparation method thereof, specifically, an environmentally friendly flame-retardant glass fiber reinforced PP / PPO alloy material with high CTI value and high GWIT value and a preparation method thereof . Background technique [0002] PPO, Chinese name polyphenylene ether, is one of the five general-purpose engineering plastics in the world. It has the advantages of high rigidity, high heat resistance, flame retardant, high strength, excellent electrical properties, wear resistance, non-toxicity, and pollution resistance. In addition, PPO is one of the varieties with the smallest dielectric constant and dielectric loss among engineering plastics. It is almost not affected by temperature and humidity. It can be used in low, medium and high frequency electric fields. The melting temperature is -170°C. The relative density of PPO is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L71/12C08L25/06C08K13/06C08K9/06C08K7/14C08K3/22C08K3/32C08K3/34B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40C08K3/34C08K7/14C08L23/12C08L51/006C08L71/02C09K21/14
Inventor 郭建鹏王尹杰孟诚铭
Owner SHANGHAI SUNNY
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