Spirulina Platensis (SP) reinforced semi-interpenetrating polymer networks (S-IPN) were developed using unsaturated polyester (USP) and polyurethane (PU). The concentrations of SP were varied in the polymer matrix. Characterization of the polymer matrix has been carried out using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Identified urethane linkages decreased with increase in SP content. Thermal stability, swelling behavior, water absorption, all increased with an increase in SP content. The biocomposites showed good chemical resistance.

中文翻译：

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藻类半互穿聚合物网络复合材料的研制与表征

使用不饱和聚酯（USP）和聚氨酯（PU）开发了螺旋藻（SP）增强的半互穿聚合物网络（S-IPN）。在聚合物基质中SP的浓度是变化的。使用傅里叶变换红外（FTIR）光谱，扫描电子显微镜（SEM）和热重分析（TGA）对聚合物基质进行了表征。鉴定出的氨基甲酸酯键随着SP含量的增加而降低。随着SP含量的增加，热稳定性，溶胀行为，吸水率均增加。生物复合材料显示出良好的耐化学性。