Salt Alginate/Carboxymethyl Cellulose Preparation And Properties Of Flame Retardant Wool Fabric

Wool oxygen index is higher (25.2%), compared with other fibers have certain flame retardant, belongs to the flame retardant fiber. But due to join the wool fabric for different purposes of some additives to make the flame retardant performance degradation, its belong to the combustible fibers, still need to be flame retardant processing to meet the requirements of the flame retardant. Flame retardant research has made some progress on wool (especially for containing halogen, phosphorus and zirconium, titanium flame retardant research more), some of the system (such as Zirpro) has been widely used, but these due to phosphorus flame retardant system, halogen, heavy metal ion and other toxic and harmful substances and in urgent need of improvement. Development halogen-free, non-toxic fire retardant at home and abroad has become a hot research topic in the field of flame retardant.This topic with the flame retardancy of sodium alginate and carboxymethyl cellulose sodium for flame retardant finishing of wool fabric. In order to be more grafted on the wool fabrics, this paper was carried out on the sodium alginate and carboxymethyl cellulose sodium partial oxidation, the cellulose chain unit of two adjacent para hydroxy oxidation for aldehyde, exposed more aldehyde can schiff base reaction with wool fiber. After the above product for calcium/aluminum, and other ionization, end up with different metal ions, flame retardant of wool fabrics. In the whole process and use process, do not use any crosslinking agent, formaldehyde and heavy metals, accord with the requirement of people to the green environmental protection. Using aldehyde content determination, determination of increase (lost) rate and limited oxygen index (LOI) test, thermogravimetric analysis (TG), mechanical properties test, Fourier infrared (FTIR), scanning electron microscope (SEM) characterization methods such as analysis of the various stages of the product for testing, the results showed that:(1) Wool fabrics with oxidation sodium carboxymethyl cellulose sodium alginate and oxidation after crosslinking, weight gain associated with oxidation time and ionic type.(2) Learn from infrared spectrum of wool fabrics with oxidation sodium carboxymethyl cellulose sodium alginate and oxidation to form covalent cross-linking, produce imine structure. At the same time from the burning of coal layer microstructure showed that after crosslinking treatment of wool fiber combustion of residual carbon layer is more smooth.(3) Compared with the untreated wool fabrics, the mechanical properties of flame retardant finishing of wool fabrics have been a certain degree of damage. But in the same conditions, sodium carboxymethyl cellulose oxidation treatment of wool fabric mechanics performance is superior to the oxidation of sodium alginate treatment of wool fabric.(4) The sodium carboxymethyl cellulose sodium oxide algin and oxidation of the crosslinking of wool fabric limit oxygen index increased to 34.3 and 33.6 respectively, and the oxidation time and subsequent processing of different metal ions and has great changes. When heated by the flame retardant finishing of wool fabric ahead of untreated wool fabric decomposition, carbon residue quantity increased dramatically.