Single polypropylene (PP) composites from a film/nonwoven fabric/film was obtained by hot calendering in order to develop recyclable, flexible, and low‐cost sheets. Processing temperature (T_p) influence on morphology and mechanical properties of developed single composites was analyzed. Two different values of roll temperature (140 and 150°C) were studied, keeping constant rotation speed and rolls distance. Results revealed notable differences in materials microstructure induced by a difference of only 10°C in T_p. Sheets obtained at 140°C presented a well‐defined film/nonwoven fabric/film structure, meanwhile the highest T_p led to a greater melting extent of external films which penetrate into the fabric, creating a more compact structure. Moreover, results confirmed that changes in T_p can induce a differential mechanical performance showing higher strength, and ductility in sheets processed at 150°C. Homogeneous sheets with good mechanical behavior, proper nonwoven fabric/films adhesion, and uniform thickness were obtained.

中文翻译：

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由聚丙烯无纺布和薄膜制成的单聚合物复合片材。加工条件对最终性能的影响

薄膜/无纺布/薄膜的单聚丙烯（PP）复合材料是通过热压延获得的，以开发可回收，柔性和低成本的板材。分析了加工温度（T _p）对已开发的单一复合材料的形貌和力学性能的影响。研究了两个不同的轧辊温度值（140和150°C），以保持恒定的转速和轧辊距离。结果表明，由于T _p仅10°C的差异而引起的材料微观结构的显着差异。在140°C下获得的片材呈现出清晰的薄膜/无纺布/薄膜结构，同时最高T _p导致渗入织物的外部薄膜具有更大的熔化程度，从而形成更紧凑的结构。此外，结果证实，T _p的变化可引起差的机械性能，从而表现出更高的强度以及在150°C下加工的板材的延展性。获得具有良好机械性能，适当的非织造织物/膜粘附性和均匀厚度的均质片材。