Composite flame retardant and waterproof modifying agent for modification of fast-growing wood for manufacturing outdoor furniture

Abstract

The invention discloses a composite flame retardant and waterproof modifying agent for modification of fast-growing wood for manufacturing outdoor furniture. The composite flame retardant and waterproof modifying agent is prepared from the following raw materials in parts by weight: 3 to 3.5 parts of formaldehyde, 2 to 3 parts of urea, 1.5 to 2 parts of hexamethylene tetramine, 0.02 to 0.03 part of maleic anhydride, a proper amount of acetic acid, a proper amount of ammonium hydroxide, a proper amount of deionized water, 20 to 23 parts of DMDHEU of which the solid content is 42wt%, 1.5 to 2 parts of magnesium chloride hexahydrate, 10 to 11 parts of silica sol, 3 to 4 parts of melamine pyrophosphate, 0.8 to 1 part of 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 2 to 3 parts of ammonium dihydrogen phosphate, 2 to 3 parts of sodium silicate, a proper amount of glacial acetic acid and a proper amount of absolute ethyl alcohol. According to the composite flame retardant and waterproof modifying agent, the corrosion resistance, waterproofness, deformation resistance and crack resistance of the wood modified through the product are greatly improved, and the outdoor furniture, wooden equipment and wooden tools manufactured through the modified wood have good utilization performance and long service life.

Description

technical field [0001] The invention relates to the technical field of wood modification, in particular to a composite flame-retardant and waterproof modifier for modifying fast-growing wood in the manufacture of outdoor furniture. Background technique [0002] As an important means of production in social and economic construction, wood and wooden materials are not only widely used in various fields in daily life, but also widely used in industrial fields such as transportation, construction and aerospace. With the increasing shortage of forest resources worldwide, especially the sharp decline in the number of precious wood, a large number of fast-growing tree species have been widely planted to meet the global wood supply in recent years. Compared with natural forest trees, fast-growing tree species are limited by factors such as short growth years, resulting in great differences between early and late wood, loose materials, and poor mechanical properties. Therefore, it is...

AI Technical Summary

Problems solved by technology

Although the mechanical properties of the modified fast-growing wood have been improved, the application of the fast-growing wood in the field of outdoor furniture and outdoor wood equipment has been affected due to its insufficient water absorption. It also hopes to have other additional properties to meet the demand for fast-growing wood such as outdoor furniture