透湿超纤合成革的制备及其性能研究

Preparation and Properties of Moisture-permeable Micro-fiber Synthetic Leather

制备了一种具有良好透湿性能的超纤合成革,并考察了聚氨酯树脂、涂覆量、聚醚硅油和超纤基布对超纤合成革透湿性能的影响。研究表明:在面层树脂不发生膨润变形的情况下,当面层树脂的亲水性增强、面层和粘结层涂覆量减小时,超纤合成革的水蒸气渗透量、水蒸气渗透和吸收系数增大,但粘结层树脂的亲水性对透湿性能影响不明显;加入2%聚醚硅油,超纤合成革水蒸气渗透量、水蒸气渗透和吸收系数均有所提高;适当增加基布的亲水性,超纤合成革水蒸气渗透和吸收系数增大。

A kind of micro - fiber synthetic leather with good moisture - permeable properties was prepared. The influence of several factors （ including polyurethane resin, coating weight, polyether silicone oil and micro - fiber base） on moisture - permea- ble properties of micro - fiber synthetic leather was also studied. Under the condition of no surface resin＇ s water swelling and the better hydrophilicity of surface resin and the less coating weight, the water vapour permeability is greater and water vapour coeffi- cient of permeability and absorption is also increased. However, adhesive resin＇ s hydrophilicity does not have a great influence on water vapour moisture - permeable properties of micro - fiber synthetic leather. With addition of 2% polyether silicone oil, micro - fiber synthetic leather＇ s permeability of water vapour and its water vapour synthetic coefficient of permeability and absorption increases. If micro - fiber base＇ s hydrophilicity is improved suitably, micro - fiber synthetic leather＇ s water vapour coefficient of permeability and absorption is also enhanced.