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"Limbah plastik multilayer merupakan masalah global yang dapat merusak lingkungan apabila tidak diatasi secepat mungkin. Penggunaan plastik multilayer sebagai plastik kemasan menyebabkan limbah plastik ini bertambah banyak secara cepat dan sifat plastik multilayer yang sulit didaur ulang menyebabkan sampah plastik multilayer semakin menumpuk dan berbahaya bagi lingkungan. Oleh karena itu, penelitian ini berfokus menggunakan plastik multilayer sebagai modifier dalam campuran polymer modified bitumen (PMB). Penambahan polypropylene (PP) pada PMB menurunkan sifat mekanis dari campuran PMB karena kompatibilitas kedua-nya kurang baik. Oleh karena itu, untuk meningkatkan kompatiblitas plastik multilayer dan bitumen, plastik multilayer diberikan perlakuan plasma dan perlakuan termal untuk mengoksidasi polimer agar lebih hidrofilik. Hasil penelitian ini menunjukkan bahwa perlakuan plasma dan perlakuan termal pada plastik multilayer meningkatkan hidrofilisitas, memodifikasi struktur rantai polimer sehingga memiliki gugus karbonil (C=O) dan gugus hidroksil, dan menurunkan titik leleh dari polimer. Kondisi oksidasi optimal adalah plastik multilayer hasil perlakuan plasma 60 detik ditambah perlakuan termal pada suhu 150 °C selama 60 menit. Campuran PMB dengan plastik teroksidasi optimal memiliki komposisi optimal sebesar 1 wt% dengan nilai daktilitas dan penetrasi masing – masing sebesar 87,7 cm dan 57,4 mm.

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Multilayer plastic waste is a global problem that can damage the environment if not addressed as soon as possible. The use of multilayer plastic as packaging plastic causes this plastic waste to multiply rapidly and the nature of multilayer plastic that is difficult to recycle causes multilayer plastic waste to accumulate and be harmful to the environment. Therefore, this research focuses on using multilayer plastic as a modifier in polymer-modified bitumen (PMB) mixtures. The addition of polypropylene (PP) to PMB reduces the mechanical properties of the PMB mixture because the compatibility of the two is not good. Therefore, to improve the compatibility of multilayer plastics and bitumen, multilayer plastics are given plasma treatment and thermal treatment to oxidize the polymer to make it more hydrophilic. The results of this study indicate that plasma treatment and thermal treatment of multilayer plastics increase the hydrophilicity, modify the polymer chain structure so that it has a carbonyl group (C=O) and a hydroxyl group, and lower the melting point of the polymer. The optimal oxidation condition is multilayer plastic because of plasma treatment of 60 seconds plus thermal treatment at 150 °C for 60 minutes. The mixture of PMB with optimally oxidized plastic has an optimal composition of 1 wt% with ductility and penetration values of 87.7 cm and 57.4 mm, respectively."

"Afghan-American Nadia Hashimi's literary debut novel is a searing tale of powerlessness, fate, and the freedom to control one's own fate that combines the cultural flavor and emotional resonance of the works of Khaled Hosseini, Jhumpa Lahiri, and Lisa See.In Kabul, 2007, with a drug-addicted father and no brothers, Rahima and her sisters can only sporadically attend school, and can rarely leave the house. Their only hope lies in the ancient custom of bacha posh, which allows young Rahima to dress and be treated as a boy until she is of marriageable age. As a son, she can attend school, go to the market, and chaperone her older sisters.But Rahima is not the first in her family to adopt this unusual custom. A century earlier, her great-aunt, Shekiba, left orphaned by an epidemic, saved herself and built a new life the same way.Crisscrossing in time, The Pearl the Broke Its Shell interweaves the tales of these two women separated by a century who share similar destinies. But what will happen once Rahima is of marriageable age? Will Shekiba always live as a man? And if Rahima cannot adapt to life as a bride, how will she survive?"