Aiming at the problems existing in the research of flame retardant and anti-static fabrics, a method of blending high performance fibers with flame retardant fibers and organic conductive fibers was put forward, so as to develop the all-cotton flame retardant fabrics with excellent comprehensive properties of flame retardant and anti-static properties, high strength wear resistance and soft feel. As we all know, textile fiber as a polymer material has high insulation, its volume specific resistance is 10 12 ~10 16 Ω·cm, much higher than 10 8 ~10 9 Ω·cm anti-static level, so its fabric is easy to produce a lot of static electricity accumulation in use. In inflammable and explosive environment, electrostatic discharge spark as ignition source often causes ignition and explosion disaster accidents. On the other hand, the vast majority of textile fibers are combustible or flammable materials, and their limiting oxygen index is generally between 17 and 25, far lower than the minimum self-extinguishing value of 27 in the air. Once the fabric encounters various igniting sources, including electrostatic discharge sparks, it will burn quickly and lead to fire. So cotton flame retardant anti-static fabric is the security of people. According to the data and research, in recent years, in industrial production and social life, aramid paper manufacturer the accidents caused by the igniting of fabrics, especially clothing fabrics by electrostatic discharge, and then through the burning of clothing itself have become more and more serious, which seriously endangers people’s lives and makes the state property suffer great losses. In many sectors of national economy (such as aerospace, aviation, weapons, chemical industry, mines) and many places (such as oil depot, natural gas or gas station, hospital operating room, automobile, aircraft) as well as fire fighting, military and other important fields, due to the particularity of production operation objects and environmental conditions, it is easy to cause fire by electrostatic discharge sparks or other tinder of fabric. Therefore, in order to ensure the personal safety of relevant personnel, the protective clothing used in the above departments and places must have the dual functions of flame retardant protective clothing and anti-static protective clothing, rather than a single protective function. Therefore, the development of flame retardant anti-static fabric is very necessary.aramid paper manufacturer
CVC flame retardant cloth is made by Proban ammonia fumigating process of twill fabric permanent finishing, thickness of 0.5 mm, gram weight of 320 g/m2. The Proban method is to flame-proof cotton cloth with THPC(4-hydroxymethyl chloride) flame-retardant materials through dipping, drying, ammonia fumigation, oxidation, washing, drying and other processes. This is currently recognized as a process method with good flame retardant effect, small drop in fabric strength and little influence on hand feel. Its flame retardant mechanism is the flame retardant principle of chemical charcoal reaction, that is, under the high temperature produced by the combustion of THPC flame retardant, on the one hand, the phosphoric acid is released as a physical barrier of oxygen, on the other hand, the phosphoric acid reacts with the cellulose in the cotton cloth, making the fiber catalyzed, dehydrated and carbonized, and the polyphosphic acid group is firmly linked aramid paper manufacturer
Qualitatively, it can reduce the production of combustible gas and achieve the purpose of flame retardancy. 2.2 PVC film material PVC film material is a thin film material with blue dyeing agent added, the thickness is 0.14mm, it has good flame retardant performance. Its flame retardant mechanism is the theory of non-combustible gas. PVC heating
HCl interacts with the chain free radicals (H· and OH·) in the flame, making the highly active free radicals turn into relatively inactive Cl atoms, and the Cl atoms extract H atoms from the polymer fuel (RH) to form HCl, thus inhibiting the growth of the flame. The mineralization
Learn equation is as follows: h. + HC – H2 + Cl · OH · + HX – H2O + Cl, RH + X, –, HCl + R, 2.3 for high density PE film, PE film.
Post time: Dec-08-2022