SU1476001A1 - Method of producing formed articles - Google Patents
Method of producing formed articles Download PDFInfo
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- SU1476001A1 SU1476001A1 SU864134726A SU4134726A SU1476001A1 SU 1476001 A1 SU1476001 A1 SU 1476001A1 SU 864134726 A SU864134726 A SU 864134726A SU 4134726 A SU4134726 A SU 4134726A SU 1476001 A1 SU1476001 A1 SU 1476001A1
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- SU
- USSR - Soviet Union
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- cellulose
- precipitation
- solution
- water
- zinc chloride
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Abstract
Изобретение относитс к способу получени формованных изделий из целлюлозы и может быть использовано в промышленности искусственных волокон. Целью изобретени вл етс упрощение технологии процесса при сохранении прочностных свойств изделий. Эта цель достигаетс тем, что в способе получени формованных изделий путем осаждени из раствора целлюлозы в водном растворе хлористого цинка в осадительную ванну последн содержит 5-10% кислоты и 90-95% воды или смесь ее с 70% изопропилового спирта. 1 табл.This invention relates to a process for the production of molded articles from cellulose and can be used in the man-made fiber industry. The aim of the invention is to simplify the process technology while maintaining the strength properties of the products. This goal is achieved by the fact that in the method of obtaining molded products by precipitation from a solution of cellulose in an aqueous solution of zinc chloride in a precipitation bath, the latter contains 5-10% acid and 90-95% water or a mixture of it with 70% isopropyl alcohol. 1 tab.
Description
1one
Изобретение относитс к производству формованных изделий, в частности к получению гидратцеллюлозных волокон и пленок из водных растворов целлюлозы.The invention relates to the production of molded articles, in particular to the preparation of hydrated cellulose fibers and films from aqueous solutions of cellulose.
Цель изобретени - упрощение технологического процесса при сохранении прочностных свойств формованных изделий.The purpose of the invention is to simplify the process while maintaining the strength properties of molded products.
Пример. 1. 130 г хлорида цинка раствор етс в 35 г воды. К раствору добавлю т 10,5 г хлопковой пульпы (СП-1200), температуру смеси поднимают до 93 С, через 5 мин при перемешивании по капл м добавл ют 35 мл воды (25°С), получа однородный 5%-ный раствор целлюлозы (растворение целлюлозы полное). Из раствора формуют волокна и пленки в осадительные ванны различного состава, дополнительно содержащие неорганические или органические кислоты в количестве 5-10% от массы осадитель- ной ванны. Волокна формуют на лабораторной пр дительной установке МУЛ-1 со скоростью 9 м/мин через фильеру 40-0,08 с отрицательной фильерной выт жкой (-50%) в осадительную ванну с температурой 35°С. Пленки получают методом полива на стекл нную полированную поверхность с последующим осаждением. В качестве осадительных ванн используют воду , водные растворы спиртов и их смеси с хлоридом цинка (не более 2%) с добавками неорганических и органических кислот. Полученные волокна и пленки отмывают от остаточного растворител , высушивают и определ NЈ чExample. 1. 130 g of zinc chloride is dissolved in 35 g of water. 10.5 g of cotton pulp (SP-1200) is added to the solution, the temperature of the mixture is raised to 93 ° C, after 5 minutes, 35 ml of water (25 ° C) is added dropwise with stirring to obtain a uniform 5% solution of cellulose (complete dissolution of cellulose). Fibers and films are molded from the solution into precipitation baths of different composition, additionally containing inorganic or organic acids in an amount of 5–10% of the mass of the precipitation bath. Fibers are molded on a MUL-1 laboratory spinning set at a speed of 9 m / min through a spinneret 40–0.08 with a negative spinneret (–50%) into a precipitation bath with a temperature of 35 ° C. Films are produced by casting onto a polished glass surface, followed by deposition. Water, aqueous solutions of alcohols and their mixtures with zinc chloride (not more than 2%) with additions of inorganic and organic acids are used as precipitation baths. The obtained fibers and films are washed of residual solvent, dried and determined by NЈ h
оabout
ют их физико-механические характеристики .their physico-mechanical characteristics.
Услови формовани , характеристики полученных волокон и пленок представлены в таблице.The molding conditions, the characteristics of the fibers and films obtained are listed in the table.
Пример 2. Дл приготовлени раствора берут 15 г хлопковой пульпы (СП-1200). После добавлени 35 мл воды образуетс однородный 7%-ный раствор целлюлозы (растворение целлюлозы полное). Формование осуществл ют аналогично примеру 1.Example 2. To prepare a solution, 15 g of cotton pulp (SP-1200) are taken. After adding 35 ml of water, a homogeneous 7% solution of cellulose is formed (the dissolution of the cellulose is complete). The molding is carried out analogously to example 1.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864134726A SU1476001A1 (en) | 1986-10-17 | 1986-10-17 | Method of producing formed articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864134726A SU1476001A1 (en) | 1986-10-17 | 1986-10-17 | Method of producing formed articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1476001A1 true SU1476001A1 (en) | 1989-04-30 |
Family
ID=21262901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864134726A SU1476001A1 (en) | 1986-10-17 | 1986-10-17 | Method of producing formed articles |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1476001A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0513038A1 (en) * | 1988-10-21 | 1992-11-19 | Purdue Research Foundation | Production of high strength cellulose fiber using zinc chloride, organic solvents and aqueous solution |
-
1986
- 1986-10-17 SU SU864134726A patent/SU1476001A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Диброва А.К., Папков С.П. Методы перевода целлюлозы в растворенное состо ние, 1971, Мытищи: НИИТЭХим, с.12-13. За вка JP N 58-151217, кл. С 08 L 1/00, опублик. 1983. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0513038A1 (en) * | 1988-10-21 | 1992-11-19 | Purdue Research Foundation | Production of high strength cellulose fiber using zinc chloride, organic solvents and aqueous solution |
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