SU1002151A1 - Method of producing moisture-proof wood - Google Patents
Method of producing moisture-proof wood Download PDFInfo
- Publication number
- SU1002151A1 SU1002151A1 SU762386837A SU2386837A SU1002151A1 SU 1002151 A1 SU1002151 A1 SU 1002151A1 SU 762386837 A SU762386837 A SU 762386837A SU 2386837 A SU2386837 A SU 2386837A SU 1002151 A1 SU1002151 A1 SU 1002151A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wood
- proof wood
- producing moisture
- hydroxyl
- polyethylene glycol
- Prior art date
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- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
(S) СПОСОБ ПОЛУЧЕНИЯ ВОДОВЛАГОСТОЙКОЙ ДРЕВЕСИНЫ(S) METHOD FOR OBTAINING WATERWAY RESISTANT WOOD
Изобретение относитс к области модификации древесины посредством ее химической обработки, касаетс спосо ба получени формостабильной древесины и может быть применено в деревообрабатывающей промышленности. Известны способы модификации дре весины посредством ее химической обработки уксусным ангидридом 1 3. Известен также способ получени водовлагостойкой древесины, включающий ее ацетилирование и пропитку гидроксилсодержащим соединением 1 . Однако по известным способам не достигаетс достаточно высокой степени формостабильности древесины. Цель изобретени - повышение формо стабильности древесины. Это достигаетс тем, что в качестве гидроксилсодержащего соединени используют полиэтиленгликоль, преимущестоенно с молекул рной массой 150015000 , а пропитку им осуществл ют в течение 1 ч при 20-80°С. Способ осуществл етс следующим образом. Воздушно-сухую древесину в автоклаве вакуумируют в течение 20 мин при остаточном давлении 5-10 мм рт. ст., затем пускают в автоклав уксусный ангидрид, подогревают и выдерживают при 100°С в течение б ч. После слива избытка модифицирующей смеси освобождают древесину от остатков жидкости путем нагревани при100-150°С в течение 20 ч. Затем обработанную древесину пропитывают в 65%-ном водном растворе полиэтиленгликол с молекул рной массой 1500 при 60°С. Получаема по данному способу водовлагостойка древесина имеет следующие показатели.The invention relates to the field of wood modification by means of its chemical treatment, relates to the method of obtaining form-stable wood and can be applied in the woodworking industry. Methods are known for modifying wood by chemically treating it with acetic anhydride 1 3. There is also known a method for producing water-resistant wood, including its acetylation and impregnation with hydroxyl-containing compound 1. However, according to the known methods, a sufficiently high degree of wood formability is not achieved. The purpose of the invention is to increase the form stability of wood. This is achieved by using polyethylene glycol as the hydroxyl-containing compound, preferably with a molecular weight of 1,51515,000, and it is impregnated for 1 hour at 20-80 ° C. The method is carried out as follows. Air-dry wood in an autoclave is evacuated for 20 minutes at a residual pressure of 5-10 mm Hg. Art., then put into the autoclave acetic anhydride, heated and maintained at 100 ° C for 6 hours. After draining the excess modifying mixture, the wood is freed from liquid residues by heating at 100-150 ° C for 20 hours. Then the treated wood is impregnated in 65 % aqueous solution of polyethylene glycol with a molecular weight of 1500 at 60 ° C. The wood obtained by this method is water resistant and has the following characteristics.
1 . Ацетилированиеone . Acetylation
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762386837A SU1002151A1 (en) | 1976-07-19 | 1976-07-19 | Method of producing moisture-proof wood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762386837A SU1002151A1 (en) | 1976-07-19 | 1976-07-19 | Method of producing moisture-proof wood |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1002151A1 true SU1002151A1 (en) | 1983-03-07 |
Family
ID=20670779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762386837A SU1002151A1 (en) | 1976-07-19 | 1976-07-19 | Method of producing moisture-proof wood |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1002151A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2178605A1 (en) * | 2001-05-03 | 2002-12-16 | Torra Martorell Jorge | Procedure and product for stabilization of panels of solid wood involves application on wood of polyethylene glycol with general formula of OH-(-CH2-CH2-O)n-H where n is whole number greater than or equal to 1 |
-
1976
- 1976-07-19 SU SU762386837A patent/SU1002151A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2178605A1 (en) * | 2001-05-03 | 2002-12-16 | Torra Martorell Jorge | Procedure and product for stabilization of panels of solid wood involves application on wood of polyethylene glycol with general formula of OH-(-CH2-CH2-O)n-H where n is whole number greater than or equal to 1 |
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