Formaldehyde-free plant adhesive and manufacturing process thereof

Abstract

The invention discloses formaldehyde-free plant adhesive and its manufacturing process. The manufacturing process is characterized by comprising the following steps: S1, material preparation: taking fresh bamboo, washing and airing, rolling the bamboo by a thread rolling machine to obtain 0.1-0.2 mm bamboo fiber so as to obtain a first prefabricated material; S2, cooking: cooking the first prefabricated material in a cooking tank at the cooking temperature of 160-200 DEG C for 10-30 min so as to obtain a second prefabricated material; S3, squeezing: squeezing the second prefabricated material obtained in the step S2 by a squeezer for 5-10 min to squeeze out a juice so as to obtain a third prefabricated material; S4, distillation: sending the third prefabricated material obtained in the step S3 into distillation equipment to dry moisture, drying by distillation and purifying the material to 90% so as to obtain a fourth prefabricated material; and S5, modulation of pH value, viscosity and dilutability: regulating pH value of the fourth prefabricated material obtained in the step S4 to 8-9%, adjusting viscosity of the material to 19-21 Pa/s, and thermocuring the material for 50-70s so as to obtain a finished product, namely the formaldehyde-free plant adhesive. By using bamboo fiber as a raw material, the formaldehyde-free plant adhesive is pollution-free and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of handicraft manufacturing, in particular to a formaldehyde-free vegetable glue and its manufacturing process. Background technique [0002] Fiberboard is a wood-based panel made by interweaving lignocellulosic fibers and utilizing their inherent adhesive properties. Adhesives and / or additives can be applied during the manufacturing process. [0003] Fiberboard, also known as density board, is a wood-based panel made of wood fiber or other vegetable fiber and applied with urea-formaldehyde resin or other suitable adhesives. Adhesives and / or additives can be applied during the manufacturing process. Fiberboard has the advantages of uniform material, small difference in vertical and horizontal strength, and is not easy to crack. It has a wide range of uses. It takes about 2.5 to 3 cubic meters of wood to manufacture 1 cubic meter of fiberboard, which can replace 3 cubic meters of sawn timber or 5 cubic mete...

AI Technical Summary

Problems solved by technology

[0004] The existing urea-formaldehyde resins or other suitable adhesives used in the manufacture of fiberboards in the market are all made of baseless materials through chemical components, which have poor environmental performance, and their raw materials are inorganic raw materials. , the idea of ​​environmental protection