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Nanometer silicon dioxide/nylon 610T composite material and preparation method thereof

A technology of nano-silica and composite materials, which is applied in the field of nano-silica/nylon 610T composite material and its preparation, can solve problems such as complicated processes, and achieve the effects of simple preparation process, low energy consumption and low water absorption rate

Active Publication Date: 2014-10-22
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the relatively cumbersome defect of the existing nano-particle modified nylon composite material process, and provide a nano-silica / nylon 610T composite material and its preparation method

Method used

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  • Nanometer silicon dioxide/nylon 610T composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A nano-silica / nylon 610T composite material, made of the following components by weight: nylon 610T (molecular weight: 30,000, melting point: 280°C): 83 parts, nano-silica: 7 parts, lubricant (ethylene Acrylic copolymer A-C540A): 3 parts, antioxidant (antioxidant 1098: antioxidant 168 compound = 1:1): 7 parts, the total weight of processing is 5kg.

[0041] (1) Dry nylon 610T in a vacuum drying oven at 100°C and a vacuum degree of 0.088MPa for 8 hours to fully remove the moisture;

[0042] (2) Then fully mix the nylon 610T, antioxidant, lubricant and other components and pour them into the hopper of the extruder;

[0043] (3) Start the extruder, extrude and granulate through the twin-screw extruder, the length-to-diameter ratio of the extruder screw is 40, and the extrusion temperature from zone 1 to the machine head is 290°C, 295°C, 300°C, 305°C ℃, 305℃, 310℃, 315℃, the rotation speed is 250r / min, and the feeding screw rotation speed is 10r / min. Obtain nano silicon d...

Embodiment 2

[0047]A nano-silica / nylon 610T composite material is provided, which is made of the following components by weight: nylon 610T (molecular weight: 45,000, melting point: 295°C): 86 parts, nano-silica: 4 parts, lubricant ( Ethylene acrylic acid copolymer A-C540A): 7 parts, antioxidant (antioxidant 1098: antioxidant 168 compound = 1:1): 3 parts, the total weight of processing is 5kg.

[0048] (1) Dry nylon 610T in a vacuum oven at 95°C and a vacuum of 0.10MPa for 10 hours to fully remove the moisture;

[0049] (2) Then fully mix the nylon 610T, antioxidant, lubricant and other components and pour them into the hopper of the extruder;

[0050] (3) Start the extruder, extrude and granulate through the twin-screw extruder, the length-to-diameter ratio of the extruder screw is 35, and the extrusion temperature from zone 1 to the machine head is 300°C, 305°C, 310°C, 315°C ℃, 320℃, 325℃, 330℃, the rotation speed is 350r / min, and the feeding screw rotation speed is 12r / min. Obtain nan...

Embodiment 3

[0054] A nano-silica / nylon 610T composite material is provided, which is made of the following components by weight: nylon 610T (molecular weight: 40,000, melting point: 290°C): 84 parts, nano-silica: 6 parts, lubricant ( Ethylene acrylic acid copolymer A-C540A): 6 parts, antioxidant (antioxidant 1098: antioxidant 168 compound = 1:1): 4 parts, the total weight of processing is 5kg.

[0055] (1) Dry nylon 610T in a vacuum oven at 85°C and a vacuum of 0.095MPa for 9 hours to fully remove the moisture;

[0056] (2) Then fully mix the nylon 610T, antioxidant, lubricant and other components and pour them into the hopper of the extruder;

[0057] (3) Start the extruder, extrude and granulate through the twin-screw extruder, the length-to-diameter ratio of the extruder screw is 45, and the extrusion temperature from zone 1 to the machine head is 295°C, 300°C, 305°C, 310°C ℃, 315℃, 320℃, 325℃, the rotation speed is 400r / min, and the feeding screw rotation speed is 15r / min. Obtain na...

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Abstract

The invention belongs to the field of composite high-molecular material and relates to a nanometer silicon dioxide / nylon 610T composite material and a preparation method thereof. The nanometer silicon dioxide / nylon 610T composite material is prepared form following components including, by weight, 83-87 parts of nylon 610T, 3-7 parts of nanometer silicon dioxide, 3-8 parts of a lubricant and 2-7 parts of an antioxidant. Compared with a preparation method in the prior art, the preparation method is simple. Cost of required equipment is low and energy consumption is low. Nanometer particles have an excellent dispersibility in nylon resin. The prepared composite material has an excellent comprehensive mechanical performance, is greatly increased in a thermal deformation temperature, is low in water absorption and is good in size stability.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and relates to a nano silicon dioxide / nylon 610T composite material and a preparation method thereof. technical background [0002] Polyamide (PA) is a widely used engineering plastic, which is customarily called nylon. It is the one with the largest consumption and the most varieties among the five major engineering plastics. At the beginning, it was mainly used in the synthetic fiber industry. Due to its excellent mechanical properties, good chemical resistance, and easy modification, it is suitable for molding and processing by various processes. Now it has a wide range of uses. However, due to the presence of amide polar groups, polyamide has high water absorption, poor flame retardancy, low heat distortion temperature, low dry impact strength, and poor dimensional stability. These shortcomings limit its application. Although reinforced polyamide with glass fiber and other inorgani...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L23/08C08K3/36B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K2201/011C08L77/06C08L23/0869C08K3/36B29C48/04B29C48/40B29C48/625B29C2948/9259
Inventor 杨桂生柯昌月
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD