
Aditif Polimer III
Authored by Erfina Oktariani
Other
University
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Makin pendek panjang gelombang, makin kecil kerusakan yang dapat ditimbulkan, karena energi radiasi yang dihasilkan semakin kecil.
Benar
Salah
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kerusakan Plastik karena Photo-Oxidation antara lain .....
Bertambahnya fleksibilitas
Perubahan Warna
Berkurangnya sifat gloss
Rusaknya permukaan
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Semua tipe sinar UV dapat menyebabkan efek foto kimia dalam struktur polimer yang mengakibatkan dehidrogenasi.
Benar
Salah
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urutan mekanisme stabilisasi sinar UV yang benar:
Penyerapan sinar UV -Quencher -Dekomposisi senyawa Hydroperoxid - Free radical Scavenging
Quencher - Penyerapan sinar UV - Dekomposisi senyawa Hydroperoxid - Free radical Scavenging
Quencher - Dekomposisi senyawa Hydroperoxid - Free radical Scavenging - Penyerapan sinar UV
Penyerapan sinar UV -Quencher - Free radical Scavenging -Dekomposisi senyawa Hydroperoxid
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
UV-absorber tidak efektif jika digunakan untuk film tipis (kemasan makanan).
Benar
Salah
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mekanisme quencher adalah melepaskan energi yang telah diserap sebelumnya oleh gugus chromophore.
Benar
Salah
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Jenis UV Stabilizer yang digunakan sebagai aditif Polietilena
Hydrobenzo phenome
Carbon Black
Bentonite
Nanoclay
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