SU391950A1 - LIBRARY K. P. Schwalbe, I. O. Ozolin, M. R. Chakste, F. A. Snyutsins, M. M. Dudins, I. M. Karlson, and D. E. Truksne - Google Patents

LIBRARY K. P. Schwalbe, I. O. Ozolin, M. R. Chakste, F. A. Snyutsins, M. M. Dudins, I. M. Karlson, and D. E. Truksne

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Publication number
SU391950A1
SU391950A1 SU1800956A SU1800956A SU391950A1 SU 391950 A1 SU391950 A1 SU 391950A1 SU 1800956 A SU1800956 A SU 1800956A SU 1800956 A SU1800956 A SU 1800956A SU 391950 A1 SU391950 A1 SU 391950A1
Authority
SU
USSR - Soviet Union
Prior art keywords
truksne
snyutsins
dudins
chakste
ozolin
Prior art date
Application number
SU1800956A
Other languages
Russian (ru)
Original Assignee
Латвийска ордена Трудового Красного Знамени сельскохоз йственна академи
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Латвийска ордена Трудового Красного Знамени сельскохоз йственна академи filed Critical Латвийска ордена Трудового Красного Знамени сельскохоз йственна академи
Priority to SU1800956A priority Critical patent/SU391950A1/en
Application granted granted Critical
Publication of SU391950A1 publication Critical patent/SU391950A1/en

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Description

1one

Изобретение относитс  К области изготовлени  плит из древесных частиц, например из древесных солокон или стружки, и может быть применено в деревообрабатывающей промышленности.The invention relates to the manufacture of wood particle boards, for example wood solokon or wood chips, and can be applied in the woodworking industry.

Известны способы изготовлени  плит, обладающих водостойкостью, из предварительно модифицированных древесных частиц, например древесных волокон, путем их прессовани .Methods are known for producing water-resistant boards from pre-modified wood particles, for example wood fibers, by pressing them.

Цель изобретени  - повышение био- и водостойкости плит.The purpose of the invention is to increase the bio-and water resistance of the plates.

Достигаетс  это тем, что древесные волокна Предварительно модифицируют жидким уксусным ангидридом при 80-125° в течение 1-10 час, а Процесс прессовани  осуществл ют при давлении 25-300 кг/см, 105-200°С в течение 1-7 мин.This is achieved by the fact that wood fibers are pre-modified with liquid acetic anhydride at 80-125 ° for 1-10 hours, and the pressing process is carried out at a pressure of 25-300 kg / cm, 105-200 ° C for 1-7 minutes.

Осуществл ют способ следующим образом.Carry out the method as follows.

Древесные частицы обрабатывают уксусным ангидридом прл температуре ацерилировани  волокна 80-125°С в течение :1-10 час. Затем ацетилированное волокно сушат в течение 8-10 час. Процесс прессовани  плитThe wood particles are treated with acetic anhydride at a fiber acetylene temperature of 80-125 ° C for: 1-10 hours. Then acetylated fiber is dried for 8-10 hours. Plate pressing process

осуществл ют при следующих режимах: Давление 25-300 кг/см, температура 105-200°С, врем  прессовани  1-7 мин. Полученные плиты обладают следуюихимиcarried out under the following conditions: Pressure 25-300 kg / cm, temperature 105-200 ° C, pressing time 1-7 minutes. The resulting plates have the following

показател ми влагостойкости: линейное разбухание в % по толщине (ГОСТ 10634-63) 5, водопоглощение (ГОСТ 10653-63) 30% и биологической устойчивостью против воздействи  Coniophora cerebella; так например,moisture resistance indicators: linear swelling in% in thickness (GOST 10634-63) 5, water absorption (GOST 10653-63) 30% and biological resistance against exposure to Coniophora cerebella; for example,

при степени ацетилировани  20,9-33,0% пр оисходит изменение веса образцов в результате биологической нроверми -0,8 до +4,7%.At a degree of acetylation of 20.9-33.0%, there is a change in the weight of the samples as a result of the biological rover -0.8 to + 4.7%.

Предмет изобретени Subject invention

Способ изготовлени  плит из предварительно модифицированных древесных частиц, например древесных волокон, путем их прессовани , отличающийс  тем, что, с целью новыщени  их био- и водостойкости, древесныеA method of manufacturing boards of pre-modified wood particles, for example wood fibers, by pressing them, characterized in that, in order to increase their bio- and water resistance, wood

волокна предварительно модифицируют жидким уксусным ангидридом при 80-125°С в течение 1-.10 час, а процесс прессовани  осуществл ют при давлении 25-300 кг/см, 105-200°С в течение Л-7 мин.the fibers are pre-modified with liquid acetic anhydride at 80-125 ° C for 1-10 hours, and the pressing process is carried out at a pressure of 25-300 kg / cm, 105-200 ° C for L-7 minutes.

SU1800956A 1972-06-26 1972-06-26 LIBRARY K. P. Schwalbe, I. O. Ozolin, M. R. Chakste, F. A. Snyutsins, M. M. Dudins, I. M. Karlson, and D. E. Truksne SU391950A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1800956A SU391950A1 (en) 1972-06-26 1972-06-26 LIBRARY K. P. Schwalbe, I. O. Ozolin, M. R. Chakste, F. A. Snyutsins, M. M. Dudins, I. M. Karlson, and D. E. Truksne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1800956A SU391950A1 (en) 1972-06-26 1972-06-26 LIBRARY K. P. Schwalbe, I. O. Ozolin, M. R. Chakste, F. A. Snyutsins, M. M. Dudins, I. M. Karlson, and D. E. Truksne

Publications (1)

Publication Number Publication Date
SU391950A1 true SU391950A1 (en) 1973-07-27

Family

ID=20519060

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1800956A SU391950A1 (en) 1972-06-26 1972-06-26 LIBRARY K. P. Schwalbe, I. O. Ozolin, M. R. Chakste, F. A. Snyutsins, M. M. Dudins, I. M. Karlson, and D. E. Truksne

Country Status (1)

Country Link
SU (1) SU391950A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063160A1 (en) * 1980-12-05 1982-10-27 United States Gypsum Co Thermoplastic hardboard from acetylated mat.
US4418101A (en) 1980-12-05 1983-11-29 United States Gypsum Company Method of making thermoplastic hardboard from acetylated mat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063160A1 (en) * 1980-12-05 1982-10-27 United States Gypsum Co Thermoplastic hardboard from acetylated mat.
US4388378A (en) 1980-12-05 1983-06-14 United States Gypsum Company Thermoplastic hardboard from acetylated mat
US4418101A (en) 1980-12-05 1983-11-29 United States Gypsum Company Method of making thermoplastic hardboard from acetylated mat

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