基于腺嘌呤核苷酸单体的光接枝生态阻燃棉织物制备及其性能

为了提高核糖核酸(RNA)单元应用于棉织物阻燃整理的耐久性以及降低生物阻燃成本,采用烯丙基溴对RNA单元衍生物5'-腺嘌呤核苷酸(AMP)进行改性制备生物阻燃单体。通过紫外光接枝法将AMP单体和AMP单体/丙烯酰胺分别接枝到纯棉织物上,制备了光接枝AMP单体和光接枝AMP单体/丙烯酰胺阻燃棉织物。对阻燃单体化学结构进行了表征。测试了纯棉织物及阻燃棉织物的阻燃性能。研究结果表明:AMP单体中成功引入不饱和双键;2种光接枝阻燃棉织物的分解温度均低于纯棉织物,阻燃棉织物的失重率降低;光接枝AMP单体/丙烯酰胺阻燃棉织物的续燃时间及阴燃时间可降低至0 s,AMP单体与丙烯酰胺之间存在一定的协效阻燃作用且可降低成本。

Preparation and properties of photografted flame-retardant cotton fabrics with modified adenine nucleotide

In order to improve the durability of ribonucleic acid (RNA) unit applied to flame-retardant cotton fabrics and to reduce the cost of biological flame retardant treatment, a RNA unit derivative, 5'-adenine nucleotide (AMP), was modified with allyl bromide to prepare biological flame retardant monomer. The AMP monomer and AMP monomer/acrylamide were grafted on pristine cotton fabrics via photografting to prepare flame retardant cotton fabrics with AMP monomer and AMP monomer/acrylamide, respectively. The chemical structure of flame retardant monomer was characterized; the flame retardant properties of pristine cotton fabrics and flame retardant cotton fabrics were measured. The research results show that unsaturated double bonds were successfully introduced into AMP monomer. The decomposition temperature of the two photografted flame-retardant cotton fabrics was lower than that of pristine cotton fabric, and the weight loss of flame-retardant cotton fabrics was reduced. The after-flame time and after-glow time of flame-retardant cotton fabric photografted with AMP monomer/acrylamide were both decreased to 0 s. There is a certain synergistic flame retardant effect between AMP monomer and acrylamide leading to a lower cost.