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High-temperature-resistant nylon composite material and preparation method thereof

A nylon composite material and composite material technology are applied in the field of high temperature resistant nylon composite material and its preparation, which can solve the problems of difficult processing, limited use range, poor fluidity of PPA resin, etc., and achieve simple preparation process, good heat resistance and cost. low effect

Inactive Publication Date: 2013-06-19
宁波锦地工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor fluidity of pure PPA resin, it is difficult to process, which limits its application range.

Method used

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  • High-temperature-resistant nylon composite material and preparation method thereof
  • High-temperature-resistant nylon composite material and preparation method thereof
  • High-temperature-resistant nylon composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] The raw materials are calculated by weight percentage, PPA55% (pre-dried at 120°C for 3 hours), PA66 10% (pre-dried at 110°C for 3 hours), glass fiber 30%, grafted POE 3%, silane coupling agent 560 Add 0.5%, antioxidant 1098 1.0%, high-temperature lubricant PETS 0.5% into the mixer and mix for 10 minutes. Set the temperature of the extruder: Zone 1: 300°C; Zone 2: 300°C; Zone 3: 290°C; Zone 4 Zone: 285℃; Zone 5: 275℃; Zone 6: 270℃; Zone 7: 265℃; Zone 8: 285℃; After being cooled by water in a water tank, blown dry by a blower, it is pulled to a cutting machine to complete granulation, and the product is obtained. After testing, the heat distortion temperature is 290°C and the impact strength is 15.1kJ / m 2 .

Embodiment 2

[0026] The raw materials are calculated by weight percentage, PPA45% (pre-dried at 120°C for 4 hours), PA66 7% (pre-dried at 110°C for 4 hours), glass fiber 40%, grafted POE 5%, silane coupling agent 560 Add 0.5%, antioxidant 1098 0.5%, high-temperature lubricant PETS 2.0% into the mixer and mix for 20 minutes. Set the temperature of the extruder: Zone 1: 305°C; Zone 2: 300°C; Zone 3: 300°C; Zone 4 Zone: 290°C; Zone 5: 280°C; Zone 6: 270°C; Zone 7: 275°C; Zone 8: 285°C; Zone 9: 315°C. After being cooled by water in a water tank, blown dry by a blower, it is pulled to a cutting machine to complete granulation, and the product is obtained. After testing, the heat distortion temperature is 292°C and the impact strength is 15.5kJ / m 2 .

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Abstract

The invention relates to a high-temperature-resistant nylon composite material and a preparation method thereof. The high-temperature-resistant nylon composite material comprises, by weight percentage, 40-70% of polyphthalamide (PPA), 1-10% of polyamide 66 (PA66), 20-50% of glass fibers, 3-10% of toughening agents, 0.1-0.5% of coupling agents, 0.2-1.0% of antioxygen, and 0.5-2.5% of the balance. The preparation method comprises the PPA, the PA66 and other raw materials are put into a mixer to be mixed for 10-20 minutes, pre-mixed materials are extruded through an extruder, stretched into strips, water-cooled through a water tank, blow-dried, and dragged to a stock cutter to finish grain cutting, and then the high-temperature-resistant nylon composite material is obtained. The heat deflection temperature of the high-temperature-resistant nylon composite material can achieve more than 290 DEG C, and the high-temperature-resistant nylon composite material has better heat resistance than common high-temperature-resistant nylon achieving 280 DEG C. In addition, impact resistance is good, impact strength can achieve 15kJ / m<2>, and the high-temperature-resistant nylon composite material is simple in manufacturing process and low in cost, and has good application prospects.

Description

technical field [0001] The invention belongs to the field of nylon composite material and its preparation, and in particular relates to a high-temperature-resistant nylon composite material and its preparation method. Background technique [0002] Polyphthalamide (PPA) is a semi-aromatic polyamide made from terephthalic acid or phthalic acid. PPA is a semi-crystalline thermoplastic aromatic polyamide, commonly known as aromatic high-temperature nylon. It is a high-temperature-resistant material with a melting point between 310 and 325°C. PPA has the following basic characteristics: 1. Stronger and harder than aliphatic polyamides such as PA66; 2. Less sensitive to moisture and better thermal performance; 3. Excellent creep resistance, fatigue and chemical resistance; 4. Glass-reinforced PPA resin has a high heat deflection temperature (Heat Deflection Temperature, HDT) value, which can withstand the short-term effect of very high temperature; 5. Under normal environmental c...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L51/06C08K13/04C08K7/14B29B9/06B29C47/92B29C48/92
CPCB29C48/92B29C48/875B29C2948/92704B29C2948/92895
Inventor 沈国璋汪涛林先进
Owner 宁波锦地工程塑料有限公司
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