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A kind of high cti value, high gwit value environment-friendly flame-retardant glass fiber reinforced pp material and preparation method thereof

An environmentally friendly, glass fiber technology, applied in the field of PP materials and its preparation, to achieve the effects of improving impact performance, reducing friction coefficient, and improving slipperiness

Active Publication Date: 2015-09-09
上海日之升科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is no report on the environmentally friendly flame-retardant glass fiber reinforced PP material with high CTI value and high GWIT value and excellent comprehensive performance.

Method used

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  • A kind of high cti value, high gwit value environment-friendly flame-retardant glass fiber reinforced pp material and preparation method thereof
  • A kind of high cti value, high gwit value environment-friendly flame-retardant glass fiber reinforced pp material and preparation method thereof
  • A kind of high cti value, high gwit value environment-friendly flame-retardant glass fiber reinforced pp material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1 Preparation of PP material of the present invention (1)

[0055]Weigh raw materials by weight percentage: PP 50.1%, compound flame retardant 12%, antimony trioxide 4%, alkali-free glass fiber treated with silane coupling agent 30%, maleic anhydride grafted PP 3%, Antioxidant 1330 0.4%, iron oxide 0.5%; put the weighed raw materials into a high mixer and mix for 5 minutes, then discharge; use a twin-screw extruder to extrude and granulate, and the processing temperature is 200-220°C, The screw revolution is 35HZ, and the specific processing conditions are shown in the table below.

[0056]

Embodiment 2

[0057] Example 2 Preparation of PP material of the present invention (2)

[0058] Weigh raw materials by weight percentage: PP 48%, compound flame retardant 12%, antimony trioxide 4%, alkali-free glass fiber treated with silane coupling agent 30%, maleic anhydride grafted PP 5%, Antioxidant 1330 0.4%, iron oxide 0.6%; put the weighed raw materials into a high mixer and mix for 2 minutes, then discharge; use a twin-screw extruder to extrude and granulate, and the processing temperature is 200-220°C, The screw revolution is 35HZ, and the specific processing conditions are shown in the table below.

[0059]

Embodiment 3

[0060] Example 3 Preparation of PP material of the present invention (3)

[0061] Weigh raw materials by weight percentage: PP 44%, compound flame retardant 20%, antimony trioxide 5.3%, alkali-free glass fiber treated with silane coupling agent 20%, maleic anhydride grafted PP 10%, Antioxidant 1330 0.1%, iron oxide 0.6%; put the weighed raw materials into a high mixer and mix for 2 minutes, then discharge; extrude and granulate with a twin-screw extruder, wherein the processing temperature is 200-220°C, The screw revolution is 30HZ, and the specific processing conditions are shown in the table below.

[0062]

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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 (Polypropylene) material which is prepared from the following raw materials in percentage by weight: 45%-68.8% of PP, 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 material. The high-CTI high-GWIT environmental-friendly flame-retardant glass fiber reinforced PP 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 addition, impact property and ageing-resistant property are improved, processing fluidity and smoothness are enhanced, and friction factor is lowered.

Description

technical field [0001] The invention relates to a PP material and a preparation method thereof, in particular to an environmentally friendly flame-retardant glass fiber reinforced PP material with a high CTI value and a high GWIT value and a preparation method thereof. Background technique [0002] Polypropylene, English name polypropylene, referred to as PP, molecular formula: (C 3 h 6 )n is a thermoplastic resin obtained by polymerizing propylene. According to the position of the methyl group, it can be divided into three types: isotaetic polypropylene, atactic polypropylene and syndiotactic polypropylene. PP is non-toxic, tasteless, low density, strength, stiffness, hardness, and heat resistance are superior to low-pressure polyethylene, and can be used at around 100 °C; it has good electrical properties and high-frequency insulation, which is not affected by humidity, and is suitable for production General mechanical parts, corrosion-resistant parts and insulating par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L25/06C08K13/06C08K9/06C08K7/14C08K3/22C08K3/32C08K3/34B29C47/92B29C48/92
CPCB29B9/14B29B9/12B29B9/06B29B7/72B29B7/46C09K21/14B29C47/92C08K2003/326B29C2947/92895B29C2947/9259C08L23/12C08K2003/2265B29B7/90B29C2947/92704B29B7/7461B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92895C08K3/22C08K3/2279C08K3/32C08K3/346C08K5/13C08K7/14C08L25/18C08L51/06
Inventor 郭建鹏孟诚铭黄晓明娄小安
Owner 上海日之升科技有限公司
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