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Super-toughened nylon 66 nano composite material prepared by in situ compatibilization and preparation method thereof

A nano-composite material, nylon technology, applied in the field of materials, can solve the problems of low notched impact strength, poor dimensional stability, strong hygroscopicity, etc., and achieve the effects of high notched impact strength, good low temperature impact resistance, and low water absorption

Active Publication Date: 2013-04-17
广东中塑新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of strong polarity, PA66 has disadvantages such as strong hygroscopicity, poor dimensional stability, and low notched impact strength at low temperature and dry state, which limits its application.

Method used

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  • Super-toughened nylon 66 nano composite material prepared by in situ compatibilization and preparation method thereof
  • Super-toughened nylon 66 nano composite material prepared by in situ compatibilization and preparation method thereof
  • Super-toughened nylon 66 nano composite material prepared by in situ compatibilization and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In-situ compatibilization preparation of super-tough nylon 66 nanocomposites is made of the following raw materials in parts by weight: 90 parts of nylon 66 (PA66), 10 parts of ethylene propylene diene monomer (EPDM), and dicumyl peroxide (DCP) 0.1 part, maleic anhydride (MAH) 1 part, organic montmorillonite (OMMT) 5 parts.

[0058] The method for preparing super-tough nylon 66 nanocomposite by in-situ compatibilization comprises the following steps:

[0059] (1) Dissolve the initiator dicumyl peroxide (DCP) and maleic anhydride (MAH) in methyl ethyl ketone to obtain a mixed solution, and place it for later use;

[0060] (2), place nylon 66 in a vacuum oven for drying treatment, control the oven temperature at 90°C, and dry for 4 hours, place EPDM in a vacuum oven for drying treatment, control the oven temperature at 70°C, and dry for 4 hours, Then nylon 66 and EPDM are cooled to room temperature, and the nylon 66 and EPDM after drying treatment are mixed uniformly acc...

Embodiment 2

[0064] Super-tough nylon 66 nanocomposites prepared by in-situ compatibilization are prepared from the following raw materials in parts by weight: 80 parts of nylon 66 (PA66), 20 parts of ethylene-propylene-diene rubber (EPDM), 2,5-dimethyl-2 , 0.1 part of 5-di-tert-butylperoxyhexane (L-101), 1 part of maleic anhydride (MAH), 5 parts of organic montmorillonite (OMMT).

[0065] The method for preparing super-tough nylon 66 nanocomposite by in-situ compatibilization comprises the following steps:

[0066] (1) Dissolve the initiator 2,5-dimethyl-2,5-di-tert-butylperoxyhexane (L-101) and maleic anhydride (MAH) in acetone to obtain a mixed solution, put aside;

[0067] (2), place nylon 66 in a vacuum oven for drying treatment, control the oven temperature at 90°C, and dry for 4 hours, place EPDM in a vacuum oven for drying treatment, control the oven temperature at 70°C, and dry for 4 hours, Then nylon 66 and EPDM are cooled to room temperature, and the nylon 66 and EPDM after dr...

Embodiment 3

[0071] Super-tough nylon 66 nanocomposites prepared by in-situ compatibilization are prepared from the following raw materials in parts by weight: 70 parts of nylon 66 (PA66), 30 parts of ethylene-propylene-diene rubber (EPDM), 2,5-dimethyl-2 , 0.1 part of 5-di-tert-butylperoxyhexane (L-101), 1 part of maleic anhydride (MAH), 5 parts of organic montmorillonite (OMMT).

[0072] The method for preparing super-tough nylon 66 nanocomposite by in-situ compatibilization comprises the following steps:

[0073] (1) Dissolve the initiator 2,5-dimethyl-2,5-di-tert-butylperoxyhexane (L-101) and maleic anhydride (MAH) in acetone to obtain a mixed solution, put aside;

[0074] (2), place nylon 66 in a vacuum oven for drying treatment, control the oven temperature at 90°C, and dry for 4 hours, place EPDM in a vacuum oven for drying treatment, control the oven temperature at 70°C, and dry for 4 hours, Then nylon 66 and EPDM are cooled to room temperature, and the nylon 66 and EPDM after dr...

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Abstract

The invention discloses a super-toughened nylon 66 nano composite material prepared by in situ compatibilization and a preparation method thereof. The super-toughened nylon 66 nano composite material comprises the following raw materials in part by weight: 55 to 95 parts of nylon 66, 5 to 45 parts of ethylene propylene diene monomer, 0.01 to 1 part of initiator, 0.1 to 4 parts of maleic anhydride and 1 to 5 parts of organic montmorillonite; and the initiator is organic peroxide and comprises hydroperoxides, dialkyl peroxides, dibenzoyl peroxides, lipoperoxides and peroxydicarbonates. The super-toughened nylon 66 nano composite material provided by the invention has excellent comprehensive performance, particularly has high notched impact strength, excellent low temperature impact resistance and low water adsorption, shortens the process flow, improves production efficiency and is easy to popularize and apply.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a super-tough nylon 66 nanocomposite material with high toughness, low temperature resistance and low water absorption prepared by using an in-situ reaction compatibilization method. Background technique [0002] Polyamide, also known as nylon (PA), is the basic resin with the widest application, the largest variety, the largest output, and excellent comprehensive performance among the five general-purpose engineering plastics. PA66 is a translucent or opaque milky white crystalline polymer. It has the advantages of high strength, wear resistance, solvent resistance and wide temperature range. It is widely used in automobile manufacturing, mechanical equipment, electronic appliances, medical equipment and precision instruments. However, due to the characteristics of strong polarity, PA66 has the disadvantages of strong hygroscopicity, poor dimensional stability, and low notch...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L51/06C08K9/04C08K3/34C08F255/06B29C47/92B29C48/92
Inventor 朱怀才王忠强
Owner 广东中塑新材料股份有限公司
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