棉织物的3-氨丙基三乙氧基硅烷阻燃整理

为赋予棉织物阻燃性及阻燃耐水洗性,以3-氨丙基三乙氧基硅烷(APTES)、 聚磷酸铵和壳聚糖为阻燃剂采用层层自组装的方法对其进行阻燃整理,研究了APTES质量分数对织物的阻燃性、耐水洗性、舒适性和物理力学性能的影响。结果表明:随着APTES质量分数的增加,整理织物的燃烧放热行为逐渐缓解,极限氧指数逐渐增加,透气性、白度和断裂强力都有所降低;当APTES质量分数为13%时,垂直燃烧的续燃时间和阴燃时间分别从未整理的8.15 s和20.32 s降至了5.23 s和2.21 s,残炭量从5.6%增至14.7%;水洗后整理织物的阻燃性能有所下降,但仍优于未整理的棉织物。

Flame retardant finishing of cotton fabric with tri-aminopropyl triethoxysilane

In order to endow cotton fabrics with flame resistance and washability, the flame retardant finishing using tri-aminopropyl triethoxysilane (APTES), ammonium polyphosphate and chitosan was carried out by self-assembly method. The effects of APTES mass fraction on the flame resistance, washability, comfort, physical and mechanical properties of cotton fabrics were analyzed.These results indicate that, with APTES mass fraction increasing,the heat release behavior of finished fabrics gradually eases during the combustion process and the limiting oxygen index increases.When the APTES mass fraction is 13%, the after flame time and afterg low time of vertical combustion reduce to 5.23 s and 2.21 s from 8.15 s and 20.32 s of untreated fabric, respectively. Meanwhile, the residual carbon amount increases to 14.7% from 5.6% of untreated fabric. Although the flame retardant property of cotton fabric decreases after washing treatment, it is still better than that of the untreated fabric.