Preparation method of modified poplar veneer impregnated with graphene furfuryl alcohol resin

Abstract

The invention provides a method for preparing poplar veneer impregnated with graphene furfuryl alcohol resin for sound insulation, the steps of which include: 1) pre-preparation, including delignification pretreatment of poplar veneer and graphene / furfuryl alcohol resin Preparation of impregnation solution; delignification pretreatment of poplar veneer is delignification of poplar veneer by sodium chlorite method; 2) Graphene / furfuryl alcohol resin impregnation of poplar veneer: impregnation of poplar veneer with graphite In the olefin / furfuryl alcohol resin impregnation solution, the top is pressed with a heavy object, and after vacuum pressure impregnation, it is impregnated at room temperature and pressure until the poplar veneer is penetrated by the impregnation solution; 3) Dry until the weight of the poplar veneer does not change to obtain graphite Modified poplar veneer impregnated with furfuryl alcohol resin. The preparation process designed by the present invention can obtain the modified poplar veneer with the best sound insulation performance, and by adding a small amount of graphene oxide, the average sound insulation in the high-frequency range can be increased by 10% to 50%. Compared with the raw materials, the present invention designs The advanced preparation process improves the average sound insulation in the high frequency band by 77%.

Description

technical field [0001] The invention relates to a preparation method of a graphene furfuryl alcohol resin impregnated modified poplar veneer. Background technique [0002] Sound pollution is currently second only to air pollution and has a huge impact on people's daily life, work and study. Wood is a common material in the field of home improvement, but its sound insulation performance is poor. Common methods to improve the sound insulation performance of wood include ultra-thick sound insulation, compounding with sound absorbing materials, and sound insulation structure design. Due to the lack of wood resources, people focus on artificial fast-growing forests, but fast-growing wood has problems such as loose material, low density, mechanical and mechanical strength. The resin densification impregnation treatment technology is an effective method to improve the properties of fast-growing wood. Since its inception, graphene has become a star filler among nano-functional fil...

AI Technical Summary

Problems solved by technology

Due to the lack of wood resources, people focus on artificial fast-growing forests, but fast-growing wood has problems such as loose material, low density, mechanics and mechanical strength.

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