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A Method for Interface Optimization of Basalt Fiber Reinforced Resin Matrix Composites

A basalt fiber and reinforced resin-based technology, which is applied in the field of interface optimization of modified basalt fiber-reinforced resin-based composite materials, can solve the problems of poor interface compatibility and unsatisfactory bonding effect, and achieve low thermal conductivity and enhanced mechanical engagement Effects of chemical bonding and high thermal stability

Active Publication Date: 2021-05-28
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • 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 fiber-reinforced resin-based composite materials in order to improve the interface compatibility between basalt fiber and resin and improve the bonding effect of basalt fiber resin. Interfacial Strength of Matrix Composites

Method used

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  • A Method for Interface Optimization of Basalt Fiber Reinforced Resin Matrix Composites
  • A Method for Interface Optimization of Basalt Fiber Reinforced Resin Matrix Composites

Examples

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Embodiment 1

[0024] The method for optimizing the interface of basalt reinforced resin-based composite materials provided by the present invention has the following steps:

[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 prepared into a piranha solution (piranha solution) at a volume ratio of 7:3 as an activation solution, and hydrogen peroxide should be added to concentrated sulfuric acid when preparing . Immerse the basalt fibers that have undergone surface cleaning and desizing into the prepared activation solution, raise the temperature to 90°C and soak for 30 minutes, then wash with a large amount of plasma water for 2 to ...

Embodiment 2

[0029] On the basis of Example 1, change step (3), the reaction time is 4h, other steps are the same as Example 1.

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Abstract

The invention discloses a method for optimizing the interface of a basalt fiber-reinforced resin-based composite material, the main steps of which are: immersing the basalt fiber in a piranha solution for immersion activation to obtain surface-activated basalt fiber; putting the activated basalt fiber into dehydration and deoxidation Then add methyltriethoxysilane, then add hydrochloric acid to keep the solution acidic, after reacting for 6-10 hours, wash and dry to obtain modified basalt fiber; fix the modified basalt fiber on the mold, The length of the fiber is equivalent to the length of the mold, and then the mixture of resin and curing agent is poured into the mold and molded to obtain a composite material. In the present invention, silicon nanowires are grown on the surface of basalt fibers to increase the surface roughness of the fibers. At the same time, there are a large number of active groups such as hydroxyl groups on the silicon nanowires, which enhances the mechanical meshing and chemical bonding between the fibers and the resin, and effectively optimizes the Interfacial properties of basalt reinforced resin matrix composites.

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 the resin, because it has a high melting point of 1400°C, the only thing left after the compos...

Claims

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Application Information

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Patent Type & Authority Patents(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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