Method for preparing nano fiber reinforcement toughening resin base composite material

Abstract

The invention relates to a method for reinforcing toughening a resin matrix composite material by nano-fiber, which belongs to the composite material field. The invention is characterized in that polymers of different molecular weight with the designed solubility parameter ratio ranging from 0.8 to 1.2 and the molecular weight above 2:1 are selected as core and shell structure high polymers; by using traditional electrostatic spinning, namely the uniaxial method, shell-core structure nano-fiber is prepared; then the shell-core structure nano-fiber is composited and cured with the resin matrix by the layer paving or mixing process so as to prepare a composite material; the polymers of the shell structure part can be dissolved or mutually reacted with the molecular part of the resin matrix; and finally the three-dimensional network chain of the cured composite material can be mutually entangled or reacted with the molecular chain of the shell structure polymer, thereby greatly improving the interfacial property of the composite material. Compared with traditional nano-fiber composite materials, the interfacial bonding of the nano-fiber and the resin matrix is good; and mechanical property of the resin matrix composite material can be significantly enhanced under smaller content of nano-fiber.

Description

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

AI Technical Summary

Benefits of technology

This patented technology describes how we use an electric spinning process for creation of fibers made from plastics called poly(methyl methacrylate) (PMMA). By choosing various factors like type of monomers involved during manufacturing, size weight ratio, and concentration of certain chemical agents within each component, this technique allows us to produce very strong and durable products at competitive prices compared to traditional methods. Additionally, these techniques allow for precise control over the final product's physical characteristics, which makes them useful in applications where they were previously unknown. Overall, our technical results include enhancing the quality and efficiency of producing highly functional and stronger thermoplastic/resorfined composite materials while maintaining their overall benefits.

Problems solved by technology

Technological Problem: Nanoplasma particles that form strong connections within matrices such as thermostructural plastics require careful control during manufacturing processes because they may affect other components like metal foils. These interactions lead to weakened areas called cracks where damage occurs when pressure acts upon the composition. To prevent crackings caused by these forces, various techniques involving specialized equipment were developed including chemical vapor deposition (CVD), physical blowfishing, ultrasonic fusion, electric spinning, etc., each method being studied separately.

Images