Laporan Magang Mandiri PT Pamolite Adhesive Industry

Rosidah, Alifiya Nur (2026) Laporan Magang Mandiri PT Pamolite Adhesive Industry. Project Report. [s.n.]. (Unpublished)

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Abstract

Pabrik lem plywood memanfaatkan tepung sebagai ekstender resin formaldehida untuk meningkatkan efisiensi biaya dan kualitas perekat. Penelitian ini bertujuan mengevaluasi pengaruh tingkat kemurnian tepung porang (industri grade dan food grade) sebagai ekstender terhadap karakteristik perekat dan kualitas plywood tipe interior. Pengujian meliputi pH, kadar air, kadar abu, viskositas, emisi formaldehida, bonding strength, dan delaminasi sesuai standar Japanese Agricultural Standard (JAS). Hasil menunjukkan bahwa tepung porang industri grade memiliki pH 6,31, kadar air 8,24%, kadar abu 7,72%, serta laju kenaikan viskositas 1,36 kali. Plywood yang dihasilkan memiliki emisi formaldehida 0,158 mg/L, bonding strength 0,72 N/mm², dan memenuhi uji delaminasi JAS. Dibandingkan food grade, porang industri grade menghasilkan sistem perekat yang lebih stabil, emisi formaldehida lebih rendah, serta kualitas ikatan yang lebih baik sehingga berpotensi menjadi alternatif ekstender yang efektif pada industri plywood.
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Plywood adhesive manufacturing commonly uses flour as a formaldehyde resin extender to improve cost efficiency and adhesive performance. This study evaluated the effect of porang flour purity (industrial grade and food grade) as a resin extender on adhesive characteristics and interior plywood quality. The analyses included pH, moisture content, ash content, viscosity, formaldehyde emission, bonding strength, and delamination according to the Japanese Agricultural Standard (JAS). The results showed that industrial-grade porang flour had a pH of 6.31, moisture content of 8.24%, ash content of 7.72%, and a viscosity increase of 1.36 times. The resulting plywood exhibited a formaldehyde emission of 0.158 mg/L, bonding strength of 0.72 N/mm², and passed the JAS delamination test. Compared with food-grade porang flour, industrial-grade porang produced a more stable adhesive system, lower formaldehyde emission, and stronger bonding performance, indicating its potential as an effective extender for plywood adhesive applications.

Item Type:	Monograph (Project Report)
Uncontrolled Keywords:	tepung porang, resin formaldehida, plywood, porang flour, formaldehyde resin, plywood
Subjects:	T Technology > TP Chemical technology > TP1140 Polymers
Divisions:	Faculty of Vocational > 24305-Industrial Chemical Engineering
Depositing User:	Alifiya Nur Rosidah
Date Deposited:	17 Jul 2026 06:31
Last Modified:	17 Jul 2026 06:31
URI:	http://repository.its.ac.id/id/eprint/135128

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