Method for optimizing interface of basalt reinforced resin-based composite material

A technology for reinforcing resin-based and composite materials, applied in the field of basalt fiber composite materials, can solve problems such as poor interface compatibility and unsatisfactory bonding effect, achieve low thermal conductivity, enhance mechanical meshing and chemical bonding, and improve roughness Effect

Active Publication Date: 2020-09-22
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for optimizing the interface of basalt reinforced resin-based composite materials in view of the problems of poor interface compatibility between basalt fiber and resin and unsatisfactory bonding effect in the prior art, which improves the performance of basalt fiber resin-based composite materials. Composite interface strength

Method used

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  • Method for optimizing interface of basalt reinforced resin-based composite material
  • Method for optimizing interface of basalt reinforced resin-based composite material
  • Method for optimizing interface of basalt reinforced resin-based composite material

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Embodiment 1

[0024] The method for interface optimization of basalt-reinforced resin-based composite material provided by the present invention, the steps are as follows:

[0025] (1) Heat the basalt fiber in a mixed solution of acetone and petroleum ether at a volume ratio of 2:1 to reflux at 60°C for 6 hours, wash it with plasma water for 3 to 4 times, and then put the basalt fiber into a vacuum oven to dry at 80°C After 12 hours, the basalt fiber after surface desizing was obtained. (2) Hydrogen peroxide (mass percentage concentration 30%, AR) and concentrated sulfuric acid are formulated into a piranha solution (piranha solution) according to a volume ratio of 7:3 as an activation solution, and hydrogen peroxide should be added to concentrated sulfuric acid during preparation . Immerse the basalt fiber after surface cleaning and desizing into the prepared activation solution, raise the temperature to 90°C and soak for 30 minutes, then wash it with a large amount of plasma water for 2-...

Embodiment 2

[0029] On the basis of embodiment 1, in the change step (3), the reaction time is 4h, and other steps are with embodiment 1.

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Abstract

The invention discloses a method for optimizing an interface of a basalt reinforced resin-based composite material, wherein the method mainly comprises the steps: soaking basalt fibers in a piranha solution for activation to obtain surface-activated basalt fibers; putting the activated basalt fiber into dehydrated and deoxygenated toluene, then adding methyltriethoxysilane, then adding hydrochloric acid to keep the solution acidic, carrying out a reaction for 6-10 h, cleaning and drying to obtain modified basalt fibers; fixing the modified basalt fibers on a mold, making the length of the fibers equivalent to that of the mold, then pouring the resin and curing agent mixed solution into the mold, and carrying out mold pressing to obtain the composite material. According to the method, silicon nanowires grow on the surfaces of the basalt fibers, the surface roughness of the fibers is improved, meanwhile, a large number of active groups such as hydroxyl exist on the silicon nanowires, themechanical meshing and chemical bonding effects between the fibers and resin are enhanced, and the interface performance of the basalt reinforced resin-based composite material is effectively optimized.

Description

technical field [0001] The invention belongs to the field of basalt fiber composite materials, in particular to an interface optimization method for modified basalt fiber reinforced resin-based composite materials. Background technique [0002] Basalt fiber is a high-tech fiber following carbon fiber, aramid fiber, and ultra-high molecular weight polyethylene fiber. It is a high-performance inorganic fiber made of natural basalt called a green industrial material. Pollution of green materials". Growing environmental awareness around the world has triggered a paradigm shift towards designing environmentally friendly materials, basalt fiber can be categorized as a sustainable material because basalt fiber is made from natural materials and no chemical additives are added during its production and any solvents, pigments or other harmful substances. When basalt fiber is recycled from resin, because its melting point is as high as 1400°C, the only thing left after the composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/06C08K9/10C08K9/02C08K7/10C08L63/02
CPCC08J5/06C08J2363/02C08K7/10C08K9/02C08K9/10
Inventor 向东李鹏飞赵春霞王斌李云涛张杰
Owner SOUTHWEST PETROLEUM UNIV
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