POM? PBT? - 鍵盤
By Rosalind
at 2012-03-09T00:42
at 2012-03-09T00:42
Table of Contents
恩 最近正在看cherry紅
但是紅的白黑分別是用不同的鍵帽
白色用PBT 黑色用POM 可是兩個的價錢都一樣
很好奇所以去找了鍵盤介紹想看看差別
【Cherry特有白色鍵帽-PBT鍵帽】
PBT 聚對苯二甲酸二丁酯polybutylene terephthalate (聚脂工程塑膠)
特性:結晶速度快、模具溫度低、成型性佳、加玻纖後HDT高、耐衝擊、強韌性、尺寸安
定性均優。
A. 在高溫高濕下,仍有很好的介電強度(Dielectric Strength)。
B. 高耐熱性,是一般常用熱可塑塑膠中最高者。
C. 吸濕性極低,尺寸長期安定性極佳。
D. 耐磨性佳,磨擦係數低,自身潤滑效果好。
E. 耐油,耐化學藥品性佳。
F. 成型性佳。
G. 具耐燃性。
【Cherry 特有黑色鍵帽-POM鍵帽】
POM 聚縮醛樹脂polyoxymethylene (acetal) (塑鋼)
特性:強韌、耐久力大、耐熱、耐藥品,類似尼龍,耐磨耗,類似PC、耐衝擊。
A. 具有高機械的性質及均秤的物性。
B. 具有高度耐疲勞性。
C. 具有很高的耐潛變性、優良的彈性回復性。
D. 具有優越的耐藥物性、耐熱水性。
E. 具有優越的耐摩擦、耐磨耗性。
F. 經得住在廣泛的溫度範圍內使用(優越的耐熱性)。
G. 具有高度尺寸安定性。
H. 具有良好的電器特性。
I. 良好的成型性(良好的流動性及光澤良好的成型表面)
所以哪一個比較好? 冏rz
A. PBT在高溫高濕下,仍有很好的介電強度(Dielectric Strength)。
恩 鍵帽有很好的介電常數可以幹嘛 打字時比較不會觸電嘛?
耐熱性:
PBT
高耐熱性,是一般常用熱可塑塑膠中最高者。
POM
經得住在廣泛的溫度範圍內使用(優越的耐熱性)。
一個是耐高溫最強 一個是溫度範圍廣 恩....
不過又不是在高溫或是低溫環境下工作的應該沒差吧
PBT耐磨性佳,磨擦係數低,自身潤滑效果好。
POM具有優越的耐摩擦、耐磨耗性。
所以PBT跟POM比有自身潤滑的效果?
PBT有耐油 POM沒有
看來手常常冒油的要選白色?
POM有良好的流動性及光澤良好的成型表面
流動性? 這鍵盤是液體鍵盤嘛
不過POM的有良好的反光光澤 PBT沒有
看來喜歡閃亮亮鍵盤的要選POM
POM有具有良好的電器特性。
恩 鍵帽甚麼時候是電器了???
所以到底是哪個比較推阿?
--
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SBL = Sex Beer Lazy (性、啤酒、懶散)
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