Blue MOFs/cast nylon nanometer composite material as well as preparation method and application thereof

A technology of nanocomposite materials and cast nylon, which is applied in the field of blue MOFs/cast nylon nanocomposites and its preparation, can solve the problems of low performance, polymerization inhibition, uneven material color, etc., and achieve good strength and toughness, and good comprehensive performance , The effect of simple preparation process
CN107129677AActive Publication Date: 2017-09-05HUNAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV OF TECH
Publication Date
2017-09-05

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Abstract

The invention discloses a blue MOFs / cast nylon nanometer composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: adding blue MOF and an aprotic polar solvent into a kettle A contained with caprolactam monomers, heating to the temperature of 70-85 DEG C, stirring for 0.5-2 hours, vacuumizing for 15-60 minutes, heating to the temperature of 130-140 DEG C, and adding an initiator for carrying out a vacuum reaction for 15-30 minutes; heating a kettle B filled with caprolactam monomers, heating to a dissolved state, vacuumizing, totally melting the monomers, adding a catalyst, heating to the temperature of 130-140 DEG C, and vacuumizing for 10-15 minutes; and finally, mixing the kettle A and the kettle B, pouring into a mold of 150-170 DEG C for performing polymerization molding, maintaining the temperature of 10-60 minutes, and demolding. By utilizing the color of blue MOFs and the frame structure, the blue MOFs and nylon matrix have a physical penetrating network combination. The material has the effects of improving the dimensional stability of the product, reducing the shrinkage ratio and reducing degree of crystallinity and melting point of the nylon.
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Description

technical field

[0001] The present invention relates to cast nylon nanomaterials and their preparation and application, more specifically, to blue MOFs / cast nylon nanocomposites and their preparation methods and applications. Background technique

[0002] In 1960, Monsanto Company of the United States firstly poured caprolactam molten monomer at 140°C and basic catalyst directly into a mold at 150-200°C, and made molded products under normal pressure for about 15 minutes. This article is known as Monomer Casting Nylon, or MCPA6. MCPA6 has higher molecular weight, crystallinity, and better physical properties than ordinary PA6 because it is rapidly polymerized and molded at a temperature lower than that of PA6.

[0003] In addition to the advantages of light weight, good mechanical properties, low noise, wear resistance and self-lubrication, MCPA6 also has some shortcomings, such as poor low-temperature impact performance, poor thermal stability, poor creep resistance, and l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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