Boride-added fast growing wood compound modifier capable of enhancing flame retardance
A composite modifier and boride technology, used in wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of affecting fast-growing wood and reducing water absorption, and achieve the improvement of flexural elastic modulus, reduction of moisture absorption, and improvement of The effect of oxygen index
Inactive Publication Date: 2017-02-15
FUYANG WEIYE FURNITURE
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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
Method used
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Experimental program
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Embodiment Construction
[0013] A fast-growing wood composite modifier added with boride flame retardant reinforcement, prepared from the following raw materials in parts by weight (kg): formaldehyde 3, urea 2, hexamethylenetetramine 1.5, maleic anhydride 0.02, acetic acid amount , an appropriate amount of ammonia water, an appropriate amount of deionized water, dimethylol dihydroxyethylene urea 20 with a solid content of 42wt%, magnesium chloride hexahydrate 1.5, silica sol 10, borax 2.5, boric acid 3, aluminum tripolyphosphate 1.5, sulfosuccinic acid Dioctyl sodium salt 0.4.
[0014] The fast-growing wood composite modifier that adds boride fire-retardant reinforcement is made by the following specific steps:
[0015] (1) Put formaldehyde, urea, and hexamethylenetetramine into the reaction kettle, add maleic anhydride, heat until completely dissolved while stirring, add 1.5 times the total amount of deionized water, heat to 70°C, and stir After reacting for 3 hours, the pH value was adjusted to 7 w...
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The invention discloses a boride-added fast growing wood compound modifier capable of enhancing flame retardance. The boride-added fast growing wood compound modifier 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 hexamethylenetetramine, 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, 2.5 to 3 parts of borax, 3 to 3.5 parts of boric acid, 1.5 to 2 parts of aluminium triphosphate and 0.4 to 0.5 part of sodium diethylhexyl sulfosuccinate. According to the boride-added fast growing wood compound modifier, after being subjected to compound treatment through a product, the fast growing wood has good mechanical property and can be comparable with valuable wood, the water absorption rate is decreased, the flame retardance is improved, and the wood does not crack during the drying process, can be used for manufacturing of outdoor furniture and outdoor wood equipment, and is durable in use.
Description
technical field [0001] The invention relates to the technical field of wood modification, in particular to a fast-growing wood composite modifier enhanced by adding borides for flame retardancy. 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 difficult to use artificial fast-gro...
Claims
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IPC IPC(8): B27K3/52
CPCB27K3/52B27K2240/30B27K2240/70
Inventor 刘伟刘凯
Owner FUYANG WEIYE FURNITURE