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A nylon 66 nanometer composite material and a 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 worse performance and unimproved other properties, and achieve good comprehensive performance and broaden the application field Effect

Inactive Publication Date: 2009-03-04
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] Silicon dioxide (SiO2) with a particle size of 20 nm 2 ) particles and ethanol were added into a high-speed sand mill in a mass ratio of 1:12 and sanded for 1 hour, and the pickaxe beads were filtered to obtain nano-SiO 2 The particle slurry is heated to 70°C with a constant temperature water bath, put on a condensation reflux device, and the pre-hydrolyzed silane coupling agent KH570 is added dropwise (the addition amount is SiO 2 5% by weight), adjust the pH value to 9.0, keep the temperature at 70°C for 4 hours, filter and dry to obtain organic nano-SiO 2 particle;

[0039] Preparation of target objects:

[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 bis stearamide (EBS ACRAWAX C, LONZA), mix...

Embodiment 2

[0044] Nano calcium carbonate organic treatment:

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

[0046] Preparation of target objects:

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

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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) nanocomposite material and a preparation method thereof. Background technique [0002] Nylon 66, due to its poor heat resistance, low impact strength in dry state and low temperature, high water absorption, poor dimensional stability and electrical properties of products, has limited its application range. In order to broaden the application range 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 (S.V.Nair et al., Journal of Materials Science, 1998, 33: 3455-3464). Although this method improves the impact toughness of nylon 66, the material The heat resistance and dimensional stability of Nylon 66 are all decreased; 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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