Determination of chloride ion content in aromatic polyamide fibre manufacturing solutions

1984 ◽  
Vol 15 (6) ◽  
pp. 466-468
Author(s):  
L. N. Bykova ◽  
N. N. Gridina ◽  
A. V. Novikov ◽  
L. G. Shirokova

1980 ◽  
Vol 12 (3) ◽  
pp. 201-203
Author(s):  
L. N. Bykova ◽  
A. D. Galitsyn ◽  
V. V. Bogoslovskii ◽  
A. V. Novikov


1980 ◽  
Vol 11 (3) ◽  
pp. 225-227
Author(s):  
V. G. Tiranov ◽  
M. A. Stepanova ◽  
G. I. Kudryavtsev ◽  
A. V. Tokarev ◽  
I. F. Khudoshev


2021 ◽  
pp. 095400832110208
Author(s):  
Kaikai Cao ◽  
Yufeng Liu ◽  
Feng Yuan ◽  
You Yang ◽  
Jin Wang ◽  
...  

A high-molecular-weight aromatic polyamide resin incorporating furan-rings (f-resin) was prepared by low-temperature solution polycondensation of bio-based 2,5-furandiformyl chloride and 3,4′-diaminodiphenyl ether, in N,N-dimethylacetamide. Further, an aromatic polyamide fibre containing furan-rings (f-fibre) was obtained from the fresin by dry-jet wet spinning, and its structure and properties were investigated. The prepared f-resin showed good solubility and possessed good spinnability in solution. The mechanical, heat-resistance, and flame-retardant properties of the f-fibre were found to be excellent – comparable to or exceeding those of meta-aramid fibre (m-fibre). In addition, the furan acid chloride monomer is bio-based and is derived from abundant resources, unlike petroleum-based monomers. Therefore, f-fibre has good potential and broad application prospects as an environment-friendly and sustainable high-performance material.



2014 ◽  
Vol 1049-1050 ◽  
pp. 309-315
Author(s):  
Miao Miao Tian ◽  
Yan Hua Cao ◽  
Rui Nan Jiang ◽  
Bao Lin Zhu ◽  
Gui Xiang Ling

The agent with a function of controlling the release rate of the anti-icing modifier used in the asphalt mixture was researched in this paper. The purpose is to make the salt components’ release rate controllable and extend the usage life of the anti-icing modifier. Apply the “Rapid Determination of Chloride Ion Content Instrument” to assess the release rate of the different agents. Research and analyze the impact on the anti-icing modifier’s durability brought by the different agents.



The molecular and supramolecular structures of an aromatic polyamide fibre (Kevlar 49) have been investigated by X-ray diffraction and electron microscopy. As a result, the main features of the fibre have now been defined. An attempt has been made to relate these findings to the exceptional mechanical properties.



1981 ◽  
Vol 53 (4) ◽  
pp. 588-593 ◽  
Author(s):  
Syotaro. Oka ◽  
Yaichiro. Sibazaki ◽  
Shu. Tahara


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