Unlock instant, AI-driven research and patent intelligence for your innovation.

Functional oxidized graphene/whole biological base benzoxazine resin composite material and preparation method thereof

A technology of oxazine resin and composite material, which is applied in the field of functionalized graphene oxide/full bio-based benzoxazine resin composite material and its preparation, can solve problems such as inconvenience in industrial production and processing, high viscosity, etc., and achieves green environmental protection of raw materials , Improve the cross-linking density, the effect of simple operation

Inactive Publication Date: 2018-05-01
WUHAN UNIV OF TECH
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the raw materials currently used for the synthesis of benzoxazine are petroleum-based non-renewable resources, or are prepared from petroleum and its derivatives, aromatic bisphenols or diamines. Since the molecules of the raw materials are rigid, they are solid or have a high viscosity, so it brings a lot of inconvenience to industrial production and further processing, which limits their application to a large extent

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Functional oxidized graphene/whole biological base benzoxazine resin composite material and preparation method thereof
  • Functional oxidized graphene/whole biological base benzoxazine resin composite material and preparation method thereof
  • Functional oxidized graphene/whole biological base benzoxazine resin composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The preparation of a kind of low-viscosity whole bio-based benzoxazine UFa, it is prepared according to the following steps:

[0048] Add urushiol (0.05mol), furfurylamine (0.05mol) and paraformaldehyde (0.01mol, number average molecular weight: 300) into a 250mL three-necked flask and stir evenly, raise the temperature to 110°C and stir for 2 hours. After the reaction, The reaction product was dissolved in chloroform, the obtained solution was filtered, extracted with sodium hydroxide solution (25wt%), and the lower layer liquid obtained from the extraction was washed to neutrality with distilled water, and then the solvent was distilled off under reduced pressure, and the obtained product was carried out at room temperature. Drying and further purification by column chromatography yielded a reddish-brown fully biobased benzoxazine (UFa).

[0049] The whole bio-based benzoxazine UFa prepared above was dried in a vacuum drying oven at 100°C for 4 hours, and then cured i...

Embodiment 2

[0055] A kind of preparation of low-viscosity full bio-based benzoxazine CFa, it is prepared according to the following steps:

[0056] Add cardanol (0.05mol), furfurylamine (0.05mol) and paraformaldehyde (0.01mol, number average molecular weight 300) into a 250mL three-necked flask and stir evenly, heat up to 110°C and stir for 3 hours. After the reaction Dissolve the reaction product in chloroform, filter the obtained solution, extract with sodium hydroxide solution, and wash the lower layer liquid obtained from the extraction with distilled water to neutrality, then distill off the solvent under reduced pressure, and dry the obtained product at room temperature. Further purification by chromatography yielded a reddish-brown fully biobased benzoxazine (CFa).

[0057] The whole bio-based benzoxazine CFa prepared above was dried in a vacuum oven at 100°C for 6 hours, and then cured in a vacuum oven as follows: 140°C (1h), 160°C (1h), 180°C ( 1h), 200°C (1h), 220°C (1h), after...

Embodiment 3

[0062] The preparation of a kind of low-viscosity all bio-based benzoxazine UFa and its KH570 functionalized graphene oxide / full bio-based benzoxazine resin composite material (PUFa-KGO), it is prepared according to the following steps:

[0063] Add urushiol (0.05mol), furfurylamine (0.05mol) and paraformaldehyde (0.01mol, number average molecular weight: 300) into a 250mL three-necked flask and stir evenly, raise the temperature to 120°C and stir for 2 hours. After the reaction The reaction product was dissolved in chloroform, the obtained solution was filtered, extracted with sodium hydroxide solution (25wt%), and the lower layer liquid obtained from the extraction was washed to neutrality with distilled water, and then the solvent was distilled off under reduced pressure, and the obtained product was carried out at room temperature. After drying and further purification by column chromatography, brown-black all-bio-based benzoxazine (UFa) was obtained.

[0064] Graphene oxide...

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
Login to View More

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
storage modulusaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a functional oxidized graphene / benzoxazine resin composite material and a preparation method thereof. The invention firstly provides low-viscosity full biological base benzoxazine which is prepared by polymerization reaction among biological base phenol monomer, furfuryl amine and paraformaldehyde, wherein the biological base phenol monomer is anacardol or urushiol. The whole biological base benzoxazine monomer can keep a low viscosity characteristic under the normal temperature, brings convenience to further processing and synthesis in industry and has higher economicvalue. Furthermore, the functional oxidized graphene / benzoxazine resin composite material can be compounded and prepared based on the low-viscosity whole biological base benzoxazine. Compared with pure benzoxazine resin, mechanical property and thermal property of the obtained composite material are greatly improved; thus, the obtained composite material has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a functionalized graphene oxide / full bio-based benzoxazine resin composite material and a preparation method thereof, and more specifically, relates to the synthesis of two low-viscosity resins with cardanol and urushiol All bio-based benzoxazine monomers (CFa and UFa), and functionalized graphene oxide / benzoxazine resin composite obtained by compounding with KH570 functionalized graphene oxide and a preparation method thereof. Background technique [0002] As a new type of high-performance polymer, benzoxazine resin has the characteristics of zero volume shrinkage, no by-products after curing, high thermal stability, high glass transition temperature, low surface energy, and low water absorption. , electronics and environmental fields have been widely used. In general, benzoxazines are prepared from phenolic intermediates, amine intermediates, and formaldehyde by Mann...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G14/09C08L61/34C08K9/06C08K3/04
CPCC08G14/06C08K3/04C08K9/06C08L61/34
Inventor 晏石林杨成露
Owner WUHAN UNIV OF TECH