PENGARUH PERLAKUAN ASAM MALEAT TERHADAP DIAMETER, DENSITAS, DAN MOISTURE CONTENT SERAT RAMI

Henny Pratiwi; Didik Nurhadiyanto; Aulia Majid; Stevanus Trian Putra Pamungkas; Rija Budi Santoso; Faizal Lanang Djati; Dicky Kurniawan

doi:10.61844/jtkm.v4i1.1111

Penulis

Henny Pratiwi Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta
Didik Nurhadiyanto Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta
Aulia Majid Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta
Stevanus Trian Putra Pamungkas Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta
Rija Budi Santoso Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta
Faizal Lanang Djati Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta
Dicky Kurniawan Departemen Pendidikan Teknik Mesin, Fakultas Teknik, Universitas Negeri Yogyakarta

DOI:

https://doi.org/10.61844/jtkm.v4i1.1111

Kata Kunci:

Serat rami, Asam maleat, Perlakuan kimia, Komposit, Sifat fisis

Abstrak

Sifat ramah lingkungan dari serat rami menyebakan penggunaannya sebagai penguat dalam matriks polimer terus berkembang. Namun, sifat hidrofilik yang dimiliki serat rami secara signifikan dapat menyebabkan ikatan antarmuka yang kurang baik ketika serat dijadikan penguat pada komposit polimer. Perlakuan kimia merupakan salah satu metode yang digunakan untuk mengurangi sifat hidrofilik serat rami. Penelitian ini bertujuan untuk mengetahui pengaruh variasi konsentrasi asam maleat terhadap sifat fisis serat rami seperti moisture content, densitas, dan diameter. Serat rami diperlakukan dengan berbagai konsentrasi asam maleat (2, 4, 6, 8, dan 10 wt.%). Hasil penelitian menunjukkan bahwa perlakuan kimia secara efektif mengurangi moisture content pada serat rami, dengan nilai terendah yaitu 8,52%, yang diamati pada sampel yang direndam dengan 6 wt.% larutan asam maleat. Demikian pula pada hasil pengukuran densitas, dimana densitas naik seiring dengan peningkatan konsentrasi asam maleat dan maksimal pada sampel konsentrasi 6 wt.% dengan nilai 1,4267 gr/cm³. Hal ini disebabkan terlarutnya sebagian daerah amorf pada permukaan serat, sehingga terjadi peningkatan compactness serat. Hal ini didukung oleh hasil pengukuran diameter dimana nilainya menurun secara konsisten dengan peningkatan konsentrasi. Modifikasi permukaan ini menunjukkan bahwa konsentrasi asam maleat 6 wt.% memberikan kondisi perlakuan yang optimal, yang diharapkan dapat meningkatkan ikatan antarmuka serat-matriks pada komposit polimer.

Unduhan

Data unduhan belum tersedia.

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