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Nylon composition, method for preparing same and application thereof

A technology of composition and nylon, which is applied in the field of nylon composition and its preparation and application, can solve the problems of reducing warpage and preventing glass fiber, weak shock resistance, large specificity, etc., and achieves improved appearance, reduced overall density, The effect of improving the yield rate

Inactive Publication Date: 2010-06-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems that the nylon composition in the prior art is prone to glass fiber outflow and affect the appearance of the injection molded part; at the same time, the shock resistance of the material is not strong and the specific gravity is large, and to provide a method that can reduce the warpage of the material. And anti-glass fiber outflow, the surface of injection molded parts is smoother and clearer, can reduce the weight of injection molded parts, and is a nylon composite material with good sound attenuation and shock resistance

Method used

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  • Nylon composition, method for preparing same and application thereof
  • Nylon composition, method for preparing same and application thereof

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preparation example Construction

[0044] The present invention provides the preparation method of above-mentioned nylon composition simultaneously: the step comprises

[0045] (1) Mixing of raw materials;

[0046] (2) plasticizing extrusion;

[0047] (3) Pelletizing and post-processing.

[0048] Wherein, material mixing is that the raw material of above-mentioned formula is mixed with conventional mixing method, and the present invention preferably mixes with high-speed mixer, makes mixture mix uniformly, and the mixing speed of preferred high-speed mixer of the present invention is 750 rpm, and stirring time is 3~ 5 minutes.

[0049] Among them, the plasticizing extrusion is to add the above-mentioned mixed materials into the twin-screw extruder, and introduce glass fibers from the glass fiber port during the extrusion process. The temperature of the extruder is controlled between 240°C and 260°C. The length-to-diameter ratio of the machine is selected to be greater than 36:1. The shearing in the screw co...

Embodiment 1

[0053] Composition Raw Materials:

[0054] E-glass fiber, 988A................................30%

[0055] Nylon 6, M2800................................46%

[0056] Hollow glass microspheres................................15%

[0057] Polyolefin Elastomer, EXACT 5061...........3%

[0058] TAF................................................2%

[0059] PE wax................................2%

[0060] Silicone................................0.4%

[0061] Antioxidant IRGANOX1098..........0.3%

[0062] Antioxidant IRGANOS168................................0.3%

[0063] Carbon Black, V9A32 Cabot................................1%

[0064] Production Process:

[0065] (1) Put the raw materials into the high mixer and stir at a speed of 750r / m for 5 minutes

[0066] (2) Put the mixed material into the extruder, and control the temperature of each section between 230°C and 255°C

[0067] (3) The extruded product is obtained after water cooling-cutting-sieving-sieving-magneti...

Embodiment 2

[0069] Prepare nylon composition according to the method for embodiment 1, difference is that composition raw material is:

[0070] E-glass fiber, 988A................................30%

[0071] Nylon 66, MPR27................................46%

[0072] Hollow glass microspheres................................15%

[0073] Polyolefin Elastomer, EXACT 5061..........3%

[0074] TAF................................................2%

[0075] PE wax...................................2%

[0076] Silicone................................0.4%

[0077] Antioxidant IRGANOX1098................................0.3%

[0078] Antioxidant IRGANOS168................................0.3%

[0079] Carbon Black, V9A32 Cabot................................1%

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Abstract

The invention provides a nylon composition and a method for preparing the same. The raw materials of the nylon composition comprise nylon resin, a toughening agent, a lubricant, a compatilizer, a surface treating agent, an antioxidant, a reinforced modifying agent which is fiber, and filling materials which are hollow glass microspheres. The nylon composition, provided by the invention, can lower the warpage of the materials, prevent the glass fiber from being exposed to the outside, make the surface of the injection moulding piece more smooth and clean, reduce the weight of the injection moulding piece and simultaneously achieves good silencing and shock resistant effects.

Description

technical field [0001] The invention relates to a nylon composition and its preparation method and application. Background technique [0002] The scientific name of nylon is polyamide, which contains highly polar amide groups and can form hydrogen bonds. The characteristics of this material are: 1. High crystallinity, obvious melting point, high surface hardness, wear resistance, small friction coefficient, and natural Lubricity and sound deadening. 2. Good low temperature performance and certain heat resistance. 3. Non-toxic, odorless, mildew-free, self-extinguishing, good weather resistance, but poor dyeing property. 4. Good chemical stability, seawater resistance, solvent resistance, oil resistance, but not acid resistance. 5. Good electrical insulation, but easily affected by temperature. 6. High water absorption, moisture affects dimensional stability and electrical properties. Due to its excellent performance, it is widely used in process manufacturing. For exampl...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08K13/04C08K7/14C08K7/28B29B9/14B29C47/92B29C47/10C08L83/04B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/625B29C2948/92895
Inventor 谭鑫煜王辉刘勇
Owner BYD CO LTD
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