SU406738A1 - WATERWATER RESISTANT MATERIAL - Google Patents
WATERWATER RESISTANT MATERIALInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1972
- 1972-07-18 SU SU1810961A patent/SU406738A1/en active
Cited By (1)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8302482L (en) | FAST BOILING RICE AND VEGETABLES | |
SU406738A1 (en) | WATERWATER RESISTANT MATERIAL | |
IE45499L (en) | Tubular cellulosic food casing | |
GB940250A (en) | Recovering fibrous materials and/or synthetic resin from waste paper | |
ES412028A1 (en) | Compositions of low calorie content | |
SU391924A1 (en) | WATERWATER RESISTANT MATERIAL | |
Zarkhin et al. | Mechanism for the initial stages of the thermal destruction of epoxide-based cross-linked polymers | |
GB820286A (en) | Improvements in and relating to filtering media | |
ES403376A1 (en) | Prehydrolysis and digestion of bagasse fibers | |
GB1296890A (en) | ||
FR2223385A1 (en) | Water-insol carboxyalkylated cellulosic - absorbing and retaining liqs | |
SU483246A1 (en) | Water resistant material | |
SU497271A1 (en) | Facing material clavedelite | |
FR2277933A1 (en) | Fibres for paper and board from vegetable matter - esp straw, bagasse, recycling hydrochloric acid, producing valuable materials | |
GB964197A (en) | Improvements in acetylation of cellulose | |
SU590310A1 (en) | Raw mixture for manufacturing heat insulating articles | |
ES389989A1 (en) | Process for converting a basic material of vegetable nature into a mouldable raw material | |
AU4851164A (en) | Production of mouldings having diminished water absorption and swelling power from woodchips or other coarse fibrous substances | |
YU34725B (en) | Process for inhibiting the condensation of lignin during natural weathering of chopped fibrous wood | |
GB773361A (en) | An improved process for the dehydration of cooked mashed potato | |
ES298734A3 (en) | Procedure for the treatment of fibrous materials (Machine-translation by Google Translate, not legally binding) | |
Ortoli | Presentation of the General Report for 1972 and programme of the Commission for 1973. Address by Mr. Francois-Xavier Ortoli, President of the Commission of the European Communities, to the European Parliament. Luxembourg, 13 February 1973. Includes French version | |
ES208176U (en) | Perfected telescopic sword. (Machine-translation by Google Translate, not legally binding) | |
ES235350A1 (en) | Procedure of continuous cellulose etherification (Machine-translation by Google Translate, not legally binding) | |
KR850000933A (en) | How to Make Noodles Based on Seaweed |