| Group 35 | Group Name : Group 35 |
| Group Members : TAN YONG KIAN, MUHAMMAD NAEEM CHEW JIA SHENG, ONG YAN XUN, SCHEE YONG HUI, HENG JUN JIE, LOW WEI LOON JASPER |
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| 1.
The gas in the foaming agent escapes, leading to the polymer collapsing on itself, thus becoming more dense. |
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| 2.
a. LDPE, having a branched nature, may be prone to gems/ bacteria to come in contact with the hands, thus it is not advisable to use LDPE. b. Higher strength while not compromising flexibility. |
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| 3.
No. Plastic lay a cross-linked structure that allow the length to increase when pulled, but paper does not, that is why this property is not observed on paper. |
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| 4.
a. Non toxic, lack of solubility in body fluid, stable, ease of implementation. b. PMMA, polymethyl metacrylate,non-toxic, permeable to oxygen, inexpensive to wear and tear. c. Hard: made of PMMA, rigid and non gas permeable. Hence, soft contact lenses are better. |
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| 5. [301] |
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| 6. [303] |
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| 7. [305] |
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| 8. [307] |
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| 9. [309] |
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| 10. [311] |
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