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Nylon 66 nano composite material and preparation method thereof

A nano-composite material and nano-inorganic technology, which is applied in the field of polyhexamethylene adipamide nano-composite material and its preparation, can solve the problems of unimproved or worse other properties, and achieve a good comprehensive performance and broaden the application field. Effect

Inactive Publication Date: 2007-10-24
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, a certain performance of nylon 66 is improved, while other performances are not improved or worse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Nano silica organic treatment:

[0038] The silica (SiO 2 ) The particles and ethanol are added to a high-speed sand mill at a mass ratio of 1:12 and sanded for 1 hour, and then the pick beads are filtered to obtain nano-SiO 2 The particle slurry is heated to 70°C with a constant temperature water bath, and a condensing reflux device is set, and the pre-hydrolyzed silane coupling agent KH570 (the addition amount is SiO 2 5% by weight), adjust the pH to 9.0, keep at 70°C for 4 hours, filter and dry to obtain organic nano SiO 2 particle;

[0039] Preparation of target:

[0040] 100 parts by mass of nylon 66 (DuPont 101L) (hereinafter referred to as "parts"), 20 parts of ethylene / acrylate / glycidyl methacrylate (AX8900, AtoFina), organic nano SiO 2 5 parts of particles, 0.2 part of 1010 antioxidant, 0.2 part of 168 antioxidant, 0.3 part of ethylene bisstearamide (EBS ACRAWAX C, LONZA), mixed in a high-speed mixer for 10-15 minutes, and then added to the twin-screw extrusion Exi...

Embodiment 2

[0044] Nano calcium carbonate organic treatment:

[0045] Calcium carbonate (CaCO 3 ) The particles and water are added to a high-speed mixer at a mass ratio of 1:12.5, heated to 80°C with a constant temperature water bath, set on a condensing reflux device, and sodium stearate is added dropwise (the amount of sodium stearate added is CaCO3 2% by weight), stirred at a constant temperature of 80°C for 2 hours, filtered and dried to obtain organic nano-CaCO 3 .

[0046] Preparation of target:

[0047] 100 parts of nylon 66 (DuPont 101L), 8 parts of ethylene / propylene copolymer (EPR-g-MAH) grafted with maleic anhydride, organic nano-CaCO 3 20 parts, 0.3 parts of 1098 antioxidants, 0.2 parts of 168 antioxidants, 0.4 parts of polyethylene wax (HL02, BASF), using the same processing method as in Example 1 to obtain the target. The performance test results of the target are shown in Table 1.

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PUM

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Abstract

The invention discloses a composite nanometer material and making method of polyhexamethylene adipamide (nylon 66), which comprises the following parts: 100wt% nylon 66, 5-20wt% elastic body and 5-30wt% inorganic nanometer particle, wherein these materials are blended to fuse and squeeze under 260-280 deg. c. The invention balances the rigidity, flexibility and fire resistance and size stability, which expands the applying domain of nylon 66.

Description

Technical field [0001] The invention relates to a polyhexamethylene adipamide (nylon 66) nano composite material and a preparation method thereof. Background technique [0002] Nylon 66, due to its poor heat resistance, low impact strength at dry and low temperatures, high water absorption, poor product dimensional stability and poor electrical properties, limits its application range. In order to broaden the scope of application of nylon 66, various methods of modifying nylon 66 were conceived. For example, rubber or thermoplastic elastomer is used as a toughening agent to toughen nylon 66 (SVNair et al., Journal of Materials Scienc, 1998, 33: 3455-3464). Although this method improves the impact toughness of nylon 66, the material Heat resistance and dimensional stability are reduced; inorganic rigid fillers (such as glass fiber, kaolin and / or wollastonite, etc.) are used to improve the dimensional stability and rigidity of nylon 66 (K. Nodo et al., Polymer, 2001, 42: 5803-5811)...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K5/524C08K3/26C08K3/36
Inventor 张玲王政华李春忠
Owner EAST CHINA UNIV OF SCI & TECH
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