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 > 28201-(S1) Undergraduate Thesis |
| 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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