To develop a fluorine-free material of acidproof and breathable fabric, styrene–butadiene–styrene (SBS) blended with pitch was directly deposited on polyester/cotton blended fabric through electrospinning to fabricate a nanofibrous membrane composite fabric. Acrylic acid (AA) and methyl methacrylate (MMA) were used to graft SBS to improve compatibility between SBS and pitch, and the modified temperatures were set at 40°C, 60°C and 80°C. The effects of different grafting monomers and temperatures on the properties of SBS/pitch membrane composite fabrics were explored by Fourier transform infrared spectral analysis; morphological structures, acid-resistant properties and breathability (vapor permeability and air permeability) were also examined. The results showed that modified SBS/pitch membrane composite fabrics possessed good acid resistance and modest breathability. SBS-g-MMA/pitch (means SBS grafted by MMA) exhibited the highest acid resistance due to more evenly distributed beads than original SBS/pitch membrane composite fabrics and higher roughness than SBS-g-AA/pitch (means SBS grafted by AA) membrane composite fabrics. By systematically changing the grafting temperature, SBS-g-MMA/pitch membrane composite fabrics for which SBS was grafted by MMA at 80°C presented appropriate air permeability (120.5 mm/s), modest water vapor transport rate (13,656.45 g/(m²·d)), good tensile strength (1203 N) and bursting strength (616 N), and the best acid resistance (143°); meanwhile the acid penetration level reached level 3, which was attributed to the low surface energy caused by the fused ring from the pitch and the rough surface caused by the micro-beads in the nanofibers. The obtained modified SBS/pitch membrane composite fabric could be potentially applied in acidproof fabrics.

为了开发一种耐酸，透气的无氟材料，将与沥青混合的苯乙烯-丁二烯-苯乙烯（SBS）通过静电纺丝直接沉积在聚酯/棉混纺的织物上，从而制成纳米纤维膜复合织物。使用丙烯酸（AA）和甲基丙烯酸甲酯（MMA）接枝SBS以改善SBS与沥青之间的相容性，并将改性温度设定为40°C，60°C和80°C。通过傅里叶变换红外光谱分析，探讨了不同接枝单体和温度对SBS /沥青膜复合织物性能的影响。还检查了其形态结构，耐酸性能和透气性（蒸汽渗透性和空气渗透性）。结果表明，改性的SBS /沥青膜复合织物具有良好的耐酸性和适度的透气性。SBS-g-MMA /沥青（指由MMA接枝的SBS）表现出最高的耐酸性，这是因为其珠粒分布比原始SBS /沥青膜复合织物更均匀，并且粗糙度高于SBS-g-AA / pitch（指由AA接枝的SBS） ）膜复合面料。通过系统地改变接枝温度，在80°C下通过MMA接枝SBS的SBS-g-MMA /沥青膜复合织物表现出适当的透气性（120.5 mm / s），适度的水蒸气传输速率（13,656.45 g /（m）SBS-g-MMA /沥青（指由MMA接枝的SBS）表现出最高的耐酸性，这是因为其珠粒分布比原始SBS /沥青膜复合织物更均匀，并且粗糙度高于SBS-g-AA / pitch（指由AA接枝的SBS） ）膜复合面料。通过系统地改变接枝温度，在80°C下通过MMA接枝SBS的SBS-g-MMA /沥青膜复合织物表现出适当的透气性（120.5 mm / s），适度的水蒸气传输速率（13,656.45 g /（m）SBS-g-MMA /沥青（指由MMA接枝的SBS）表现出最高的耐酸性，这是因为其珠粒分布比原始SBS /沥青膜复合织物更均匀，并且粗糙度高于SBS-g-AA / pitch（指由AA接枝的SBS） ）膜复合面料。通过系统地改变接枝温度，在80°C下通过MMA接枝SBS的SBS-g-MMA /沥青膜复合织物表现出适当的透气性（120.5 mm / s），适度的水蒸气传输速率（13,656.45 g /（m）² ·d）），良好的拉伸强度（1203 N）和破裂强度（616 N），以及最佳的耐酸性（143°）；同时，酸渗透水平达到了3级，这是由于沥青中的稠环引起的表面能低以及纳米纤维中的微珠引起的粗糙表面所致。所获得的改性的SBS /沥青膜复合织物可以潜在地应用于耐酸织物中。