SU406738A1 - WATERWATER RESISTANT MATERIAL - Google Patents

WATERWATER RESISTANT MATERIAL

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Publication number
SU406738A1
SU406738A1 SU1810961A SU1810961A SU406738A1 SU 406738 A1 SU406738 A1 SU 406738A1 SU 1810961 A SU1810961 A SU 1810961A SU 1810961 A SU1810961 A SU 1810961A SU 406738 A1 SU406738 A1 SU 406738A1
Authority
SU
USSR - Soviet Union
Prior art keywords
resistant material
waterwater
wood
acetate
modifier
Prior art date
Application number
SU1810961A
Other languages
Russian (ru)
Inventor
М. Р. Чаксте Латвийска ордена Трудового Красного Знамени сельскохоз йственна академи витель И. О. Озолин К. П. Швалбе
Original Assignee
Авторы изобретени
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 Авторы изобретени filed Critical Авторы изобретени
Priority to SU1810961A priority Critical patent/SU406738A1/en
Application granted granted Critical
Publication of SU406738A1 publication Critical patent/SU406738A1/en

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  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Description

1one

Известны водовлагостойкие материалы на основе измельченной древесины и модификатора .Known water-resistant materials based on chopped wood and modifier.

Однако известные материалы не  вл ютс  формостабильными на продолжительное врем , так как нри их модификации древесные частицы не подвергаютс  существенным изменени м .However, the known materials are not form-stable for a long time, since, when modified, wood particles do not undergo significant changes.

Цель изобретени  - повысить физико-химические свойства материала.The purpose of the invention is to improve the physicochemical properties of the material.

Предлагаемый материал в качестве модификатора содержит ацетатные пруппы нри следующем соотношении компонентов: древесные волокна 60-80 вес. %, ацетатные грунпы 40-20 вес. %.The proposed material as a modifier contains acetate groups NRI the following ratio of components: wood fibers 60-80 weight. % acetate soils 40-20 wt. %

Измельченную древесину, панриадер древесные волокна, вакуумируют, затем обрабатывают уксусным ангидридом и выдерживают определенное врем  при соответствующей температуре , затем массу освобождают от побочных нродуктов при температуре 105° С, прессуют .The crushed wood, panriader wood fibers, are evacuated, then treated with acetic anhydride and kept for a certain time at an appropriate temperature, then the mass is freed from side products at a temperature of 105 ° C, pressed.

Получаетс  формостабильный водостойкий материал на основе измельченной древесины, содержащий ацетатные группы, образующиес  в результате замещени  гидроксильных группA formically stable, water-resistant material based on chopped wood is obtained, containing acetate groups resulting from the replacement of hydroxyl groups.

основных компонентов древесных волокон (целлюлоза, лигнин, гемпцеллюлоза) ацетатными групна.ми.The main components of wood fibers (cellulose, lignin, gemcellulose) acetate groups.

Предлагаемый материал имеет разбухание по толщине 6,3-3,6%, водоноглощение 48,2-The proposed material has a swelling in thickness of 6.3-3.6%, water absorption 48.2-

13,3%.13.3%.

Предмет изобретени Subject invention

Водовлагостойкий материал на основе измельченной древесины, например, древесных волокон и модификатора, отличающийс  тем, что, с целью повышени  физико-химических свойств материала, он содержит в качестве модификатора ацетатные грунны при следующем соотнощении компонентов, вес. %: Древесные волокна 60-80 Ацетатные грунны 40-20.A water-resistant material based on chopped wood, for example, wood fibers and a modifier, characterized in that, in order to improve the physicochemical properties of the material, it contains as a modifier acetate soils with the following ratio of components, weight. %: Wood fibers 60-80 Acetate soils 40-20.

SU1810961A 1972-07-18 1972-07-18 WATERWATER RESISTANT MATERIAL SU406738A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1810961A SU406738A1 (en) 1972-07-18 1972-07-18 WATERWATER RESISTANT MATERIAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1810961A SU406738A1 (en) 1972-07-18 1972-07-18 WATERWATER RESISTANT MATERIAL

Publications (1)

Publication Number Publication Date
SU406738A1 true SU406738A1 (en) 1973-11-21

Family

ID=20522000

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1810961A SU406738A1 (en) 1972-07-18 1972-07-18 WATERWATER RESISTANT MATERIAL

Country Status (1)

Country Link
SU (1) SU406738A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006153A1 (en) * 1991-09-19 1993-04-01 Nauchno-Proizvodstvennoe Obiedinenie 'novye Tekhnologii Sibiri' Modified lignocellulose material, method of obtaining it and composition for obtaining composite material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006153A1 (en) * 1991-09-19 1993-04-01 Nauchno-Proizvodstvennoe Obiedinenie 'novye Tekhnologii Sibiri' Modified lignocellulose material, method of obtaining it and composition for obtaining composite material

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