彈性材料 (18)

3.7. 為什麼彈性材料會如此受歡迎?
(Why are elastic materials becoming so popular? (Elastic vs cross-link))

3.7.1. Low temperature resistance

3.7.2. Higher clarity

3.7.3. Low density

3.7.4. Cross-linked material versus

Non-cross-linked
Recyclable
Elasticities
High molecular becoming low molecular (結合和分解）