请教PC片的清洗
各位仁兄,请问PC片的清洗和CR-39有什么不同,哪些地方需要注意?清洗液中加HF酸可以吗 为什么没人理我呀,救命呀,看看我的帖子嘛!!help!!! 晕菜。。。。怎么还是没人理 pc片 是啥东西阿 PC片又称宇宙片,学名聚碳酸树脂(polycarbonate),溶于氯化烃和部分酮,酯及芳香烃中,不溶于脂肪族,碳烃化合物,醚类和醇类。我只知道这些!!呜呜~~谁知道它的清洗是怎样的? <P>请问,OLPF用的是哪些材料?</P><P>请多多指教!!:)</P> OLPF是什么dd? <P>“光学低通滤波器(OLPF)广泛应用于数码相机、数字摄像机、监视系统、可视电话等的CCD/CMOS前部。有助于隔滤红外线,消除衍射阴影,改善输出图解效果,获得逼真、完美的画面。OLPF是由高品质的光学石英水晶片、增透膜、红外截止膜和红外截止玻片等精密组合而成的。” </P><P>是刚刚在google上搜索到的资料,不要跑题呀,请大家讨论一下PC的清洗,呜呜~~帮帮忙!!</P> <P>是在哪里买的?可否告诉我呢,感激不尽呀,呵呵~~</P> <H1 109.75pt; mso-char-indent-count: 4.97; mso-char-indent-size: 22.05pt">N-Methylpyrrolidone</H1><P>Suggested Intermediate for the chemical industry.</P><P>Application Solvent for numerous polymers.</P><P> e.g. polyamides, polyimides, polyamidimides, and polyacrylonitrile.</P><P 126pt; TEXT-INDENT: -126pt; mso-char-indent-count: -12.0; mso-char-indent-size: 10.5pt"> Solvent for the extraction of acetylene, 1, 3-butadiene, isoprene, aromatic hydrocarbons or lube oils, and for scrubbing gases,</P><P 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt">Special solvent for pesticides. </P><P 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"> <p></p></P><P>Form; solubility Colourless liquid with weak amine odour; it is miscible with water </P><P> And nearly all common organic solvents.</P><P> <p></p></P><P>Specification Assay At least 99.5%</P><P 205.5pt">(by gas chromatography)</P><P 205.5pt"> <p></p></P><P>Special grade Impurities At most 0.01% methanamine</P><P> (by gas chromatography).</P><P> At most 0.05% wateer</P><P 200.25pt">(ASTM D 1364-64)</P><P 200.25pt"> <p></p></P><P>Dist Impurities At most 0.02% methanamine</P><P> (by gas chromatography)</P><P> At most 0.1% water</P><P 205.5pt">(ASTM D 1364-64).</P><P 205.5pt"> <p></p></P><P>Melting temperature -25℃<p></p></P><P> <p></p></P><P>Boling temperature 202.5-205℃(5-95%, ASTM D 1078-70).<p></p></P><P> <p></p></P><P>Density at 25℃ 1.028g/cm(ASTM D 941-55).<p></p></P><P> <p></p></P><P>Flash point 91℃(ASTM D 93-73).<p></p></P><P> <p></p></P><P>Storage and shelf life Unlimited in unopened containers.<p></p></P><P>Transport <p></p></P><P 126pt; TEXT-INDENT: -126pt; mso-char-indent-count: -12.0; mso-char-indent-size: 10.5pt"> The product is neither explosive, nor spontaneously flammable in air.<p></p></P><P 126pt; TEXT-INDENT: -126pt; mso-char-indent-count: -12.0; mso-char-indent-size: 10.5pt"> <p></p></P><P 126pt; mso-char-indent-count: 12.0; mso-char-indent-size: 10.5pt">The products is however flammable.<p></p></P><P 126pt; mso-char-indent-count: 12.0; mso-char-indent-size: 10.5pt"> <p></p></P><P> <p></p></P><P> <p></p></P><P 126pt; mso-char-indent-count: 12.0; mso-char-indent-size: 10.5pt"> <B> </B></P> 上面的那个东东,谁用过? 好头痛的文字呀,是什么DD呀,不能用汉语表示一下吗?
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