Aditif Polimer IV

Aditif Polimer IV

University

10 Qs

quiz-placeholder

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Aditif Polimer IV

Aditif Polimer IV

Assessment

Quiz

Other

University

Practice Problem

Hard

Created by

Erfina Oktariani

Used 4+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Curing agent dan akselerator sering ditambahkan ke dalam termoplastik untuk keperluan industri.

Benar

Salah

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Proses curing termoset dapat dipercepat tanpa akselerator, yaitu dengan pemberian panas eksternal.

Benar

Salah

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Jenis/Bentuk curing agent yang dapat ditambahkan pada proses injection/vacuum forming (Tabel 12.4 Buku J. Murphy) antara lain ........

Liquid, low activity

Liquid, super activity

Liquid, high activity

Liquid, normal activity

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tahapan reaksi umum peroksida sebagai cross-linking agent

Pembentukan Radikal Makro --> Pengaktifan Peroxide --> Percabangan rantai

   & Chain-Scission --> Grafting

Pengaktifan Peroxide --> Pembentukan Radikal Mikro --> Percabangan rantai

   & Chain-Scission --> Grafting

Pengaktifan Peroxide --> Pembentukan Radikal Makro --> Percabangan rantai

   & Chain-Scission --> Grafting

Pembentukan Radikal Makro --> Pengaktifan Peroxide --> Grafting --> Percabangan rantai

   & Chain-Scission

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Peroksida organik memiliki ikatan C-C yang sangat labil dan mudah terurai pada suhu tertentu.

Benar

Salah

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Prinsip cross-link yang harus diperhatikan yaitu .....

Menghindari crosslinking premature

Melibatkan crosslinking premature

Derajat crosslinking 70-80 %

Derajat crosslinking 75-85 %

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kompatibilizer secara kimiawi mengikat bahan yang berbeda sifat agar terikat bersama-sama bahkan di lingkungan yang menantang.

Benar

Salah

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