SU311990A1 - METHOD OF MODIFICATION OF CELLULOSE ACETATE - Google Patents
METHOD OF MODIFICATION OF CELLULOSE ACETATEInfo
- Publication number
- SU311990A1 SU311990A1 SU1185078A SU1185078A SU311990A1 SU 311990 A1 SU311990 A1 SU 311990A1 SU 1185078 A SU1185078 A SU 1185078A SU 1185078 A SU1185078 A SU 1185078A SU 311990 A1 SU311990 A1 SU 311990A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fiber
- modification
- cellulose acetate
- isocyanates
- acetate
- Prior art date
Links
- 229920002301 Cellulose acetate Polymers 0.000 title description 4
- 230000004048 modification Effects 0.000 title description 3
- 238000006011 modification reaction Methods 0.000 title description 3
- 239000000835 fiber Substances 0.000 description 12
- 150000002513 isocyanates Chemical class 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 102100008309 PAK2 Human genes 0.000 description 1
- 101700075957 PAK2 Proteins 0.000 description 1
- 101700070381 PKN2 Proteins 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N [N-]=C=O Chemical compound [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Description
Изобретение касаетс модификации производных целлюлозы изоцианатами.The invention relates to the modification of cellulose derivatives with isocyanates.
Известна модификаци ацетатов целлюлозы с помощью изоцианатов, блокированных, например, фенолом.A known modification of cellulose acetates with the help of isocyanates, blocked, for example, with phenol.
-Ш-С-ОСНгСНгО-С- NH-Sh-C-OSSNgSNGO-C-NH
Предложенные изоцианаты ввод т в полимер в количестве от 1 до 10% от веса полимера , они стабильны при обычных температурах, обладают низкой токсичностью, хорошей водостойкостью , раствор ютс в типичных растворител х дл эфиров целлюлозы и совмещаютс с растворами полимеров.The proposed isocyanates are introduced into the polymer in an amount of from 1 to 10% by weight of the polymer, they are stable at ordinary temperatures, have low toxicity, good water resistance, dissolve in typical solvents for cellulose ethers, and combine with polymer solutions.
Волокна и пленки формуют по обычной схеме дл ацетатного волокна. В отдельных случа х модифицированное волокно после формовани может быть подвергнуто термообработке . В результате прогрева модификатор не вымываетс после многократных водных обработок моющими препаратами, а также при действии органических растворителей.The fibers and films are formed in the usual manner for acetate fibers. In some cases, the modified fiber after molding may be heat treated. As a result of the warm-up, the modifier is not washed out after repeated water treatments with detergents, as well as under the action of organic solvents.
С целью придани ацетатному волокну повышенной прочности и высокого модул в мокром состо нии, предложено вводить в пр дильный раствор ацетата целлюлозы изоцианаты формулыIn order to impart a higher strength and high modulus to the acetate fiber in the wet state, it has been proposed to introduce into the spinning solution of cellulose acetate the isocyanates of the formula
II II
NH-Cната (2 моль) с этиленгликолем (1 моль) и феонолом (2 моль). Волокно формуют по обычной схеме сухого формовани ацетатного волокна. Полученное волокно облучаютNH-Cnat (2 mol) with ethylene glycol (1 mol) and pheonol (2 mol). The fiber is molded according to the usual dry-forming pattern of acetate fiber. The resulting fiber is irradiated
ультрафиолетовым светом (лампа ПАК-2) при 30°С в течение 5 час (рассто ние от лампы 45 см).UV light (PAK-2 lamp) at 30 ° C for 5 hours (45 cm from the lamp).
Сохранение прочности дл волокна без модификатора составл ло 49% (от исходного),The strength retention for the unmodified fiber was 49% (from baseline),
а дл волокна, содержащего 10% модификатора , 98%. Сохранение удлинени волокна немодифицированного 13%, модифицированного 100%. Пример 2. Ацетатное волокно, сформованное как в примере 1, прогревают 1 час при 180°С. После прогрева прочность волокна составл ет 10,3-11,0 разрыв, км, удлинение 20-24%.and for fiber containing 10% modifier, 98%. Preservation of elongation of unmodified fiber 13%, modified 100%. Example 2. Acetate fiber, molded as in example 1, is heated for 1 hour at 180 ° C. After heating, the fiber strength is 10.3-11.0 rupture, km, elongation 20-24%.
Предмет изоб1)етени The subject of the image1) eteni
Способ модификации ацетатов целлюлозы путем введени в пр дильпый раствор, полимера блокированных изоцианатов и последующей термообработки сформованных изделий , отличающийс тем, что, с целью получени ацетаггшаго водокна с повышенной прочностью и высоким модулем в мокром состо нии , в качестве изоцианатов используют соединение формулыA method of modifying cellulose acetates by introducing a blocked isocyanate polymer into a spin solution and subsequent heat treatment of molded products, characterized in that, in order to obtain acetated water with increased strength and high modulus in the wet state, the compound used isocyanates
C-NHC-NH
(1(one
с - OCfiaCHgO- с- NH Шз with - OCfiaCHgO- with- NH Shz
J -Л.::УJ-L. :: U
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU311990A1 true SU311990A1 (en) |
Family
ID=
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