SU132807A1 - The method of obtaining wood-shaving plates - Google Patents
The method of obtaining wood-shaving platesInfo
- Publication number
- SU132807A1 SU132807A1 SU652384A SU652384A SU132807A1 SU 132807 A1 SU132807 A1 SU 132807A1 SU 652384 A SU652384 A SU 652384A SU 652384 A SU652384 A SU 652384A SU 132807 A1 SU132807 A1 SU 132807A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pitch
- wood
- obtaining wood
- plates
- shaving plates
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 239000011295 pitch Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011093 chipboard Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Description
Известно применение фенолсодержашик пеков различного происхождени (каменноугольные и другие), обрабатываемых формальдегидом СН20, в качестве св зующих дл пропитки и прессовани древесностружечных плит и других волокнистых веществ.It is known to use phenol containing pitches of various origins (coal and others), treated with formaldehyde CH20, as binders for impregnation and pressing of particle boards and other fibrous substances.
В предлагаемом способе получени древесно-стружечпых плит новым вл етс использование отходов древесины и пека, получаемого при выделении лесохимических фетюлов CeHsOH, после выделени нх из древесио-смол ных масел.In the proposed method for producing chipboard boards, the use of waste wood and pitch, which is obtained from the isolation of wood-chemical fetules CeHsOH, after separating them from wood-resinous oils, is new.
Использование пека и отходов древесины имеет суплественное техиико-экономическое значение дл лесопромыщлсиных районов, где они еще не используютс .The use of pitch and waste wood is of potent technical and economic importance for forest areas where they are not yet used.
Применение пека в качестве св зуюи его в производстве древесностружечных плит дает возможность замены дефицитных продуктов - мочевины и фенолов.The use of pitch as a binder in the production of particle boards makes it possible to replace the scarce products, urea and phenols.
Методика предлагаемого способа получени св зующей и пластической массы следующа .The method of the proposed method for obtaining a binder and plastic mass is as follows.
Мелко приготовленный на бегунковых или щаровых мельницах пек ввод т при посто нном перемещиваниивводный раствор щелочи. Затем к этой эмульсии, при охлаждении, по част м добавл ют необходимое количество формальдегида. Паста, получаема при концентрацни пека, выше 60%, хорошо раствор етс в воде.Finely cooked in runner or ball mills, pitch is introduced while constantly moving the alkali water solution. Then, while cooling, the required amount of formaldehyde is added to this emulsion. The paste obtained at a pitch concentration above 60% dissolves well in water.
Паиболее удобным методом получени св зующей насты вл етс механический помол пека со щелочью и с последующим добавлением формальдегида.The most convenient method of obtaining a binding binder is mechanical grinding of pitch with alkali and with the subsequent addition of formaldehyde.
При нагревании растворимые в воде смилы переход т в нерастворимое состо ние, то есть вл ютс термореактнвными и могут быть применены в качестве св зующего дл древесно-стружечных плит при их влажности не более 10-12%.When heated, water-soluble minerals become insoluble, i.e., are thermoset, and can be used as a binder for chipboard with a moisture content of not more than 10-12%.
Дл получени удовлетворительных результатов при прессовании плит с пековым св зующим требуетс : температура прессовани 154°; давление 20-25 кг/см ; продолжительность 20 мин.In order to obtain satisfactory results when pressing plates with a pitch binder, the following is required: pressing temperature 154 °; pressure of 20-25 kg / cm; duration 20 min.
№ 132807-- 2 Средние показатели этих плит в части физико-механических свойств при условии содержани облицовочного сло 25-30%; прочность на из S-4 (оГвеса ли) водопоглощаемость за одни в % tNo. 132807-- 2 The average indices of these plates in terms of physicomechanical properties, provided the content of the facing layer is 25-30%; strength of S-4 (oGvesa) water absorption for some in% t
Предмет изобретени Subject invention
Способ получени древесно-стружечных плит на основе древесных отходов и фенолсодержащего пека, обработанного формальдегидом в щелочной среде, отличающийс тем. что, с целью расширени сыр ьевои базы, в качестве фенольного сырь примен ют пек образующийс после выделени из древесно-смол ных масел лесохимических фенолов.The method for producing chipboard based on wood waste and phenol-containing pitch treated with formaldehyde in an alkaline environment, characterized in that. For the purpose of expanding the raw material base, pitch formed after phenol extraction from wood-chemical oils of forest chemical phenols is used as a phenolic raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU652384A SU132807A1 (en) | 1960-01-25 | 1960-01-25 | The method of obtaining wood-shaving plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU652384A SU132807A1 (en) | 1960-01-25 | 1960-01-25 | The method of obtaining wood-shaving plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU132807A1 true SU132807A1 (en) | 1960-11-30 |
Family
ID=48403825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU652384A SU132807A1 (en) | 1960-01-25 | 1960-01-25 | The method of obtaining wood-shaving plates |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU132807A1 (en) |
-
1960
- 1960-01-25 SU SU652384A patent/SU132807A1/en active
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