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Heatproof wear-resistant alkali-free short glass fiber-reinforced nylon PA610T composition and preparation method thereof

A technology of PA610T and short glass fiber, which is applied in the field of composite polymer materials, can solve the problems of poor material processing stability, narrow processing window, and poor wear resistance, and achieve ideal mechanical properties, wide processing window, and good fluidity Effect

Inactive Publication Date: 2016-07-20
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its wear resistance is poor, so it is not suitable for use in some environments with special requirements, especially in places with frequent friction.
In addition, PA10T is used in the patent, its melting point is as high as 317°C, but its decomposition temperature is about 350°C, so the processing window is very narrow, and the material processing stability is not good.

Method used

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  • Heatproof wear-resistant alkali-free short glass fiber-reinforced nylon PA610T composition and preparation method thereof
  • Heatproof wear-resistant alkali-free short glass fiber-reinforced nylon PA610T composition and preparation method thereof
  • Heatproof wear-resistant alkali-free short glass fiber-reinforced nylon PA610T composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Provide a heat-resistant and wear-resistant alkali-free short glass fiber reinforced nylon PA610T composition, which consists of the following components by weight ratio: nylon resin 610T (molecular weight 30,000, melting point 280 ° C): 70 parts, alkali-free short glass fiber (length 2mm): 15 parts, nano-silicon nitride: 5 parts, lubricant (ethylene acrylic acid copolymer A-C540A): 3 parts, antioxidant (antioxidant 1098: antioxidant 168 compound = 1:1) : 7 parts, the total processing weight is 4kg.

[0039] (1) Dry the nylon resin at 90°C for 10 hours to fully remove the moisture therein;

[0040] (2) drying the nano-silicon nitride at 60°C for 4 hours to fully remove the moisture therein;

[0041] (3) Then fully mix components such as nylon 610T, nano-silicon nitride, antioxidant, lubricant;

[0042] (4) Pour into the hopper of the extruder, and at the same time, add the non-alkali short glass fiber to the side feeding port;

[0043] (5) Start the extruder, and tur...

Embodiment 2

[0046] A heat-resistant and wear-resistant alkali-free short glass fiber reinforced nylon PA610T composition is provided, which consists of the following components by weight ratio: nylon resin 610T (molecular weight: 40,000, melting point: 295°C): 56 parts, alkali-free short glass fiber (length 3mm): 30 parts, nano-silicon nitride: 4 parts, lubricant (ethylene acrylic acid copolymer A-C540A): 5 parts, antioxidant (antioxidant 1098: antioxidant 168 compound = 1:1) : 5 parts, the total processing weight is 4kg.

[0047] (1) Dry the nylon resin at 100°C for 8 hours to fully remove the moisture therein;

[0048](2) drying the nano-silicon nitride at 70°C for 3 hours to fully remove the moisture therein;

[0049] (3) Then fully mix components such as nylon 610T, nano-silicon nitride, antioxidant, lubricant;

[0050] (4) Pour into the hopper of the extruder, and at the same time, add the non-alkali short glass fiber to the side feeding port;

[0051] (5) Start the extruder, and ...

Embodiment 3

[0054] A heat-resistant and wear-resistant alkali-free short glass fiber reinforced nylon PA610T composition is provided, which consists of the following components by weight ratio: nylon resin 610T (molecular weight: 50,000, melting point: 310°C): 50 parts, alkali-free short glass fiber (length 4mm): 37 parts, nano-silicon nitride: 3 parts, lubricant (ethylene acrylic acid copolymer A-C540A): 8 parts, antioxidant (antioxidant 1790: antioxidant S9228 compound = 1:1) : 2 parts, the total processing weight is 4kg.

[0055] (1) Dry the nylon resin at 110°C for 6 hours to fully remove the moisture therein;

[0056] (2) drying the nano-silicon nitride at 80°C for 2 hours to fully remove the moisture therein;

[0057] (3) Then fully mix components such as nylon 610T, nano-silicon nitride, antioxidant, lubricant;

[0058] (4) Pour into the hopper of the extruder, and at the same time, add the non-alkali short glass fiber to the side feeding port;

[0059] (5) Start the extruder, a...

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Abstract

The invention relates to a heatproof wear-resistant alkali-free short glass fiber-reinforced nylon PA610T composition and a preparation method thereof. The composition is prepared from, by weight, 50 to 70 parts of PA610T, 15 to 37 parts of alkali-free short glass fiber, 3 to 5 parts of nanometer silicon nitride, 3 to 8 parts of a lubricant and 2 to 7 parts of an anti-oxidant. The preparation method comprises the following steps: weighing nylon, nanometer silicon nitride, the anti-oxidant and the lubricant according to the above-mentioned weight parts, carrying out uniformly mixing, pouring an obtained mixture into a hopper of an extruder and adding the alkali-free short glass fiber into a side feed inlet; starting the extruder and a vacuum pump and carrying out extrusion and granulation via the double screw-extruder so as to obtain am alkali-free short glass fiber-reinforced nylon PA610T composition; and drying the composition in a baking oven with a temperature of 90 to 110 DEG C for 2 to 6 h so as to obtain the heatproof wear-resistant alkali-free short glass fiber-reinforced nylon PA610T composition for subsequent usage. Compared with the prior art, the invention has the following advantages: the preparation method is simple and stable; the alkali-free short glass fiber and auxiliary agents are uniformly dispersed in nylon resin; compatibility of the short glass fiber and nylon resin is good; and the obtained composition has ideal mechanical properties and excellent heatproof and wear-resistant performance.

Description

technical field [0001] The invention belongs to the field of composite polymer materials, and relates to a heat-resistant and wear-resistant alkali-free short glass fiber reinforced nylon PA610T composition. Background technique [0002] Nylon (polyamide) is currently the most widely used thermoplastic engineering plastic at home and abroad. It has excellent properties such as toughness, wear resistance, impact resistance, fatigue resistance, corrosion resistance, and oil resistance. It is widely used in auto parts, electronic appliances, etc. In the past 60 years, industries such as machinery and machinery have grown steadily in the fierce competition of engineering plastics, and their demand has ranked first among the five major engineering plastics so far. [0003] At present, with the rapid development of industry, people have higher and higher requirements for engineering plastics. In order to further replace metals and expand their application range, plastics are requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L23/08C08K13/04C08K7/14C08K3/28C08K5/134C08K5/526B29C47/92B29C48/92
Inventor 杨桂生柯昌月
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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