Pengaruh Komposisi Dan Triethylamine Sebagai Curing Agent Terhadap Sifat Mekanik Dan Termal Pada Epoksi Dgeba Sebagai Adhesive Baja A36

Malada, Hilbert Philip (2015) Pengaruh Komposisi Dan Triethylamine Sebagai Curing Agent Terhadap Sifat Mekanik Dan Termal Pada Epoksi Dgeba Sebagai Adhesive Baja A36. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengaruh komposisi diglycidyl ether bisphenol-A/triethylamine/ phenol (DGEBA/TEA/Ph) terhadap sifat mekanik dan termal dipelajari dengan mereaksikan resin epoksi DGEBA, triethylamine dan phenol berdasarkan rasio berat. DGEBA/TEA/ Ph dicuring pada temperatur 50oC selama 12 jam dan dipelajari dengan menggunakan FTIR, pengujian tarik, pengujian adhesive, SEM, pengujian water absorption dan TGA. Hasil menunjukkan terjadinya reaksi curing yang ditandai dengan terbukanya rantai oxyrane epoksi dan munculnya ikatan hidroksil (O-H). Kekuatan tarik dan elongasi DGEBA/TEA/Ph meningkat dengan penambahan Ph, mencapai maksimum pada DGEBA/TEA(12) /Ph(8) sebesar 70,71 MPa dan 4,07%. Penambahan Ph menurunkan kekuatan adhesive, kekuatan geser maksimum diperoleh DGEBA/TEA(20)/Ph(0) sebesar 13,14 MPa. Penambahan Ph menghilangkan porositas yang dibentuk TEA pada morfologi DGEBA/TEA/Ph sehingga permukaan menjadi halus. Serapan air menurun ketika persentase Ph bertambah, mencapai minimum pada DGEBA/TEA(4)/Ph(16) sebesar 2,08%. Penambahan Ph meningkatkan stabilitas termal DGEBA/TEA/Ph, mencapai maksimum pada DGEBA/TEA(4)/Ph(16). Epoksi terdegradasi sebanyak 5% pada 311,3oC, sebanyak 10% pada 381,0oC dan terdekomposisi pada 438,4oC. ========== The effect of diglycidyl ether bisphenol-A/triethylamine/phenol (DGEBA/TEA/Ph) composition toward mechanical and thermal properties were studied by reacting DGEBA, triethyl-amine and phenol based on their weight ratio. DGEBA/TEA/Ph were cured at 50oC for 12 hours, then studied and characterized by using FTIR, tensile test, adhesive test, SEM, water absorption test and TGA. Results show the occurrence of curing reaction marked by oxyrane chain opening and by the emergence of hydroxyl bond (O-H). The tensile strength and elongation of DGEBA/TEA/Ph are improved by the addition of Ph, peaked at 70,71 MPa and 4,07% on DGEBA/TEA(12)/Ph(8). Increasing amount of Ph lowered the adhesive strength, maximum adhesive strength gained by DGEBA/TEA(20)/Ph(0) at 13,14 MPa. The addition of Ph omit the porosity in the morphology of the epoxy caused by TEA, results in smoother surface. Water absorption is decreased as the percentage of Ph increased, plummeted at 2,08% on DGEBA/TEA(4)/Ph(16). The rise in Ph weight ratio improved the thermal stability of DGEBA/ TEA/Ph, peaked on DGEBA/TEA(4)/Ph(16). Epoxy is degradated by 5% at 311,3oC, by 10% at 381,0oC and decomposed at 438,4oC.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.118 Mal p
Uncontrolled Keywords: epoksi, dgeba, phenol, triethylamine, adhesive
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA455.A34 Adhesives
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: - Davi Wah
Date Deposited: 21 Mar 2019 07:36
Last Modified: 21 Mar 2019 07:36
URI: http://repository.its.ac.id/id/eprint/62559

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