SU478842A1 - The method of obtaining modified phenol-formaldehyde resins - Google Patents
The method of obtaining modified phenol-formaldehyde resinsInfo
- Publication number
- SU478842A1 SU478842A1 SU1834576A SU1834576A SU478842A1 SU 478842 A1 SU478842 A1 SU 478842A1 SU 1834576 A SU1834576 A SU 1834576A SU 1834576 A SU1834576 A SU 1834576A SU 478842 A1 SU478842 A1 SU 478842A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- formaldehyde resins
- modified phenol
- obtaining modified
- resin
- phenol
- Prior art date
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Description
При нагрузке 0,05 кгс/см деформационна теплостойкость полимера, определенна на приборе Цетлина, равна 480°С.Under a load of 0.05 kgf / cm, the deformation heat resistance of the polymer, determined on a Zetlin device, is 480 ° C.
Физико-механические показатели пресс-издели на основе фенолформальдегидной смолы , модифицированной поливинилфурфуралем , приведены ниже. В качестве наполнител используетс кокс.The physicomechanical characteristics of a press product based on a phenol-formaldehyde resin modified with polyvinyl furfural are given below. Coke is used as a filler.
Плотность, г/см 1,35- 1,62 в зависимостиDensity, g / cm 1.35-1.62 depending
от давлени прессовани . Предел прочности при 1100-1200from pressing pressure. Strength at 1100-1200
сжатии, кг/см Твердость по Бринеллю,25-36.compression, kg / cm Brinell hardness, 25-36.
кг/ммkg / mm
Совмещенную смолу испытывают в качестве кле . Склеивают стальные пластины при удельном давлении 1 кг/см.The combined resin is tested as an adhesive. Steel plates are glued at a specific pressure of 1 kg / cm.
Результаты испытаний на предел прочности при сдвиге следующие:The test results for shear strength are as follows:
Режим отверждени при 150°С, час2Curing mode at 150 ° С, hour2
Температура испытани , °С20Test Temperature, ° C
Предел прочности при сдвиге, «г/см 69 Клеевой шов, прогретый при 300°С в течение 15 мин, имеет предел прочности при сдвиге 25 кг/см, а протретый при 500°С в течение 15 мин 7 кг/см.Shear strength, “g / cm 69” The adhesive joint heated at 300 ° C for 15 minutes has a shear strength of 25 kg / cm, and 7 kg / cm cured at 500 ° C for 15 minutes.
Предмет изобретени Subject invention
Способ получени модифицированных фенолформальдегидных смол путем конденсации фенол-форМальдегидных смол с поливинилацеталем , отличающийс тем, что, с целью упрощени способа и повышеии теплостойкости отвержденного материала, в качестве смолы используют водорастворимую фенолформальдегидную смолу и в качестве ацетал - поливинилфурфураль, причем конденсацию провод т в водной среде при комнатной температуре и весовом соотношении компонентов 1 : 0,5-2 по сухому остатку соответственно .The method of obtaining modified phenol-formaldehyde resins by condensation of phenol-formaldehyde resins with polyvinyl acetal, characterized in that, in order to simplify the process and increase the heat resistance of the cured material, a water-soluble phenol-formaldehyde resin is used as the resin and as an acetal-polyvinyl surfure resin, a template, a maritime resin, is used. at room temperature and weight ratio of components 1: 0.5-2 on the dry residue, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1834576A SU478842A1 (en) | 1972-10-04 | 1972-10-04 | The method of obtaining modified phenol-formaldehyde resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1834576A SU478842A1 (en) | 1972-10-04 | 1972-10-04 | The method of obtaining modified phenol-formaldehyde resins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU478842A1 true SU478842A1 (en) | 1975-07-30 |
Family
ID=20528752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1834576A SU478842A1 (en) | 1972-10-04 | 1972-10-04 | The method of obtaining modified phenol-formaldehyde resins |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU478842A1 (en) |
-
1972
- 1972-10-04 SU SU1834576A patent/SU478842A1/en active
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