Preparation method of reactive-type organic carbon nano filler

A nano-filler and organic carbon technology, which is applied in the field of preparation of reactive organic carbon nano-fillers, can solve the problems of decreased comprehensive performance of resin, inability to achieve expected results, insufficient dispersibility, etc., and achieves low product cost, easy implementation and batch production. The effect of production, improving mechanical properties and heat resistance
CN106046689AInactive Publication Date: 2016-10-26XIAN AEROSPACE COMPOSITE MATERIALS INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN AEROSPACE COMPOSITE MATERIALS INST
Publication Date
2016-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a preparation method of a reactive-type organic carbon nano filler. The preparation method includes the steps of: 1) soaking the carbon nano filler in excessive concentrated nitric acid to oxidize the carbon nano filler to obtain hydroxylated carbon nano filler; 2) soaking the hydroxylated carbon nano filler in an excessive ethyl acetate saturated solution of maleic anhydride to carry out stem grafting to obtain carboxylated carbon nano filler; and 3) soaking the carboxylated carbon nano filler in an excessive ethanol saturated solution of a polyamino small-molecule compound to carry out stem grafting to obtain the reactive-type organic carbon nano filler. The reactive-type organic carbon nano filler not only has the physical advantages of conventional nano filler, but also can participate in a curing reaction of epoxy resin. The nano filler has good dispersibility in resin and can control movement of molecular chains, so that prepared resin composite filler is excellent in mechanical performance and heat resistance.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of nano-doped epoxy resin and composite filler, and in particular relates to a preparation method of reactive organic carbon nano-filler. Background technique

[0002] With the continuous development of my country's space technology, in order to meet the urgent needs of high strength, high reliability and light weight of space structural parts, the development and application of new high-performance resin-based composite filler components are increasing. The ultra-high mechanical properties and specific surface area of ​​carbon nanofillers can effectively improve the comprehensive properties of polymers. Carbon nanofillers can form a more effective network structure in the matrix, conduct heat in time, and avoid filler decomposition caused by local heat accumulation. In addition, the carbon nanofiller itself has good heat resistance, and its thermal decomposition temperature is much higher th...

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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