鏡框材料

Quiz
•
Others
•
1st Grade
•
Medium
欣蘋 許
Used 6+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
醋酸纖維cellulose acetate 的密度為1.28~1.32且為棉花或木漿製作而成,作為鏡框使用,請問它的優點為?
可塑性、不易刮傷、易燃、堅硬、穩定性高
難燃燒、在紫外線下不易變色、耐衝擊、用酒易收縮、較無致敏性
需泡水軟化、適用於運動眼鏡、重量輕、耐衝擊、耐磨、延展好
加熱可至350°C、耐熱性、耐腐蝕、彈性優、光澤性好
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
賽璐珞cellulose nitrate 為最早使用之熱塑性樹脂鏡框材質,因為什麼原因被FDA禁止於使用在鏡框材質上?
延展性不佳
致敏性嚴重
耐衝擊性不夠
燃點位於125°C放在車上易燃
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
聚亞醯胺Polymide又名Nylon,為熱塑性材質請問下列何者有誤?
為廣泛的塑膠框材質,適合運動員和兒童鏡架
密度為1.14~1.15,重量輕、強度大、耐熱、耐磨、耐衝擊
抗化學性佳、可做安全鏡片、可碰觸酒精不會霧化
耐溶劑性好、自身潤滑性優良、可彎折、著色性佳、和TR90同類
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
碳纖維Carbon fiber,下列何項不屬於他的特性?
熱固性、耐熱性極佳可到200°C
強度大、可做薄而強的鏡框
輕量、較醋酸纖維輕60%
耐熱性、耐腐蝕性、彈性優、但不耐衝擊
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
我們都知道天然材質數量稀少、價格不菲,請問以下關於天然材料鏡框的特性以下何者錯誤?
重量輕、光澤好、易斷裂、陳列時需放水以防止乾燥
不易調整、價格昂貴、高級鏡框、需小心照顧、易被腐蝕氧化
牛角鏡框可泡水軟化調整、調整完畢後需用冷水沖洗是恢復原來的樣子
可塑性高、耐衝擊性高、不易斷裂、難燃燒、可用超音波機來清洗鏡框
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
哪些材料可以放進熔爐來製作玻璃鏡片?(此為多選題)
二氧化矽、鋁、無鐵砂和長石
石灰和氧化鎂可取代石灰石和白雲石
碳酸鹽或硝酸鹽
鹼性氧化物(鈉或鉀)、稀土
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是網絡形成氧化物?
三氧化二硼
五氧化二磷
二氧化矽
氧化鋇
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