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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蘇州 PVA吸收軸角度測(cè)試儀,軸角度測(cè)試儀</p><p><span>***更新：</span>2020-11-08 12:10:34</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fjl3hrn" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州千宇光學(xué)科技有限公司</a></p><p><span>聯(lián)系人：</span>密先生</p><p><span>郵箱: </span>cimi@oec-tech.com</p><p><span>電話: </span>18662198664</p><p><span>傳真: </span>0512_69388290</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0512-69388290</p><p><span>地址: </span>蘇州工業(yè)園區(qū)東旺路8號(hào)7B-302室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="3m8bduw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ey2ovce" class="box"><p><p> (纖維素酯) <span style="font-size:12px;">該纖維素酯推薦具有200-700,更推薦具有250-550,比較好選具有250-350的(粘度平均)聚合度。粘度平均聚合度可以用Ostwald粘度計(jì)測(cè)定。由測(cè)定的具體粘度問，根據(jù)式：DP = [T]]/Km計(jì)算粘度平均聚合度DP,其中Km是常數(shù)6x10-4。</span> </p> <p> 纖維素酯可以*由新的薄片制得，但是推薦將用過的纖維素酯薄膜的廢物混合重新使用。廢物的量是3-95重量％，推薦6-80重量％, 更推薦10-70重量％。 </p> <p> 作為纖維素酯，推薦低級(jí)脂肪酸的纖維素酯。術(shù)語“低級(jí)脂肪酸” 意思是具有6個(gè)或更少碳原子的脂肪酸。碳原子的數(shù)量推薦是2（醋酸纖維素酯）、3（丙酸纖維素酯）或4（丁酸纖維素酯），蘇州 PVA吸收軸角度測(cè)試儀。特別推薦醋酸纖維素酯，并且混合脂肪酸的纖維素酯如醋酸丙酸纖維素酯和醋酸丁酸纖維素酯也是適宜的。 </p> <p> 醋酸纖維素酯的平均醋酸含量（乙?；龋┩扑]是55.0-62.5%?？?慮到薄膜性能，平均醋酸含量更推薦58.0-62.5%，蘇州 PVA吸收軸角度測(cè)試儀。然而，平均醋酸含量為55.0-58，蘇州 PVA吸收軸角度測(cè)試儀.0%（推薦57.0-58.0%）醋酸纖維素酯薄膜沿厚度呈現(xiàn)高的延遲值。相位差重復(fù)性精度：３σ≦０．１nm；蘇州 PVA吸收軸角度測(cè)試儀</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州 PVA吸收軸角度測(cè)試儀,軸角度測(cè)試儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637309445052714843/6889289.png"></div><p> 近年來，液晶顯示裝置作為顯示文字、圖像等的顯示裝置而被*** 利用。這樣的液晶顯示裝置通常包括2片偏振片和設(shè)置于其間的液晶單元，該液晶單元由玻璃基板、透明電極、濾色器、定向膜、液晶等構(gòu)成。 </p> <p> 一般來說，液晶顯示裝置中使用的偏振片是介由粘合劑層在偏振膜（起偏振器）的單面或雙面貼合三乙酸纖維素（以下，也稱為TAC）系膜等的保護(hù)膜而成的，所述偏振膜是在拉伸定向的聚乙烯醇（以下，也稱為PVA）系片上吸附有碘或二色性染料而得的。蘇州日本大冢軸角度測(cè)試儀相位差延遲量、橢偏率、配向角，色度、多波段測(cè)試(380nm~780nm）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州 PVA吸收軸角度測(cè)試儀,軸角度測(cè)試儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637309444454531250/9486399.png"></div><p style="text-indent:25px"> 以PVA膜染色方法劃分，偏光片有碘染色法和染料染色法兩種工藝。碘染色法是指在偏光片染色、拉伸過程中，使用碘和碘化鉀作為二向性介質(zhì)使PVA膜產(chǎn)生極性化偏光特性。優(yōu)點(diǎn)是比較容易獲得99.9%以上的高偏光度和42%以上高透過率的偏光特性。所以在早期的偏光材料產(chǎn)品或需要高偏光、高透過特性的偏光材料產(chǎn)品中大多都采用碘染色工藝進(jìn)行加工。但這種工藝的不足之處就是由于碘的分子結(jié)構(gòu)在高溫高濕的條件下易于破壞，因此使用碘染色工藝生產(chǎn)的偏光片耐久性較差，一般只能滿足干溫：80℃×500HR，濕熱：60℃×90%RH×500HR以下的工作條件使用。但隨著LCD產(chǎn)品范圍的擴(kuò)大，對(duì)偏光產(chǎn)品的濕熱工作條件的要求越來越苛刻，已經(jīng)出現(xiàn)在100℃和90%RH條件下工作的偏光片需求。對(duì)這種要求，碘染色工藝就無能為力了。</p><p> 光學(xué)薄膜在我們的生活中無處不在，從精密及光學(xué)設(shè)備、顯示器設(shè)備到日常生活中的光學(xué)薄膜應(yīng)用;比方說，平時(shí)戴的眼鏡、數(shù)碼相機(jī)、各式家電用品，或者是鈔票上的防偽技術(shù)，皆能被稱之為光學(xué)薄膜技術(shù)應(yīng)用之延伸。倘若沒有光學(xué)薄膜技術(shù)作為發(fā)展基礎(chǔ)，近代光電、通訊或是鐳射技術(shù)將無法有所進(jìn)展，這也顯示出光學(xué)薄膜技術(shù)研究發(fā)展的重要性。 </p> <p> 光學(xué)薄膜系指在光學(xué)元件或**基板上，制鍍上或涂布一層或多層介電質(zhì)膜或金屬膜或這兩類膜的組合，以改變光波之傳遞特性，包括光的透射、反射、吸收、散射、偏振及相位改變。故經(jīng)由適當(dāng)設(shè)計(jì)可以調(diào)變不同波段元件表面之穿透率及反射率，亦可以使不同偏振平面的光具有不同的特性。測(cè)量波段：550nm單波段（可根據(jù)客戶要求定制波段）可升級(jí)為380nm~780nm。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州 PVA吸收軸角度測(cè)試儀,軸角度測(cè)試儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637309446106816406/511083.png"></div><p> ［延遲-增加劑］<span style="font-size:12px;">可以將延遲-增加劑加入到纖維素酯薄膜中，以便增加沿厚度的延遲值。作為延遲-增加劑，可以使用具有其中包括至少兩個(gè)芳環(huán)并且它們的構(gòu)象不遭受位阻的分子結(jié)構(gòu)的芳香化合物。</span> </p> <p> 以100重量份的纖維素酯為基礎(chǔ)，該芳香化合物以0.01-20重量份的量，推薦以0.05-15重量份的量，更推薦以0.1-10重量份的量加入。兩種或多種芳香化合物可以混合使用。 </p> <p> 術(shù)語“芳環(huán)”不*可以是芳燈環(huán)而且可以是芳雜環(huán)。 </p> <p> 作為芳炷環(huán)，特別推薦六元環(huán)（即，苯環(huán)）。 </p> <p> 芳香雜環(huán)通常不飽和。芳香雜環(huán)推薦是五元、六元或七元環(huán)，更推薦五元或六元環(huán)。芳香雜環(huán)通常具有盡可能多的雙鍵。環(huán)中的雜原子推薦是氮原子、硫原子或氧原子，更推薦是氮原子。芳香雜環(huán)的實(shí) 例包括味喃環(huán)、嚷吩環(huán)、毗咯環(huán)、噁嗖環(huán)、異噁哩環(huán)、囉哩環(huán)、異嚏哩環(huán)、咪哩環(huán)、毗哇環(huán)、味咱環(huán)、三哇環(huán)、毗喃環(huán)、毗嚏環(huán)、噠嗪環(huán)、嗟喧環(huán)、毗嗪環(huán)和1,3,5-三嗪環(huán)。 </p> <p> 延遲-增加劑推薦具有300-800的分子量。延遲-增加劑的沸點(diǎn)推薦是260C或更高。沸點(diǎn)可以通過可商購(gòu)獲得的設(shè)備（例如， TG/DTA100, SEIKO儀器公司）測(cè)定。 </p> <p> 在日本**臨時(shí)公開號(hào)2000-111914> 2000-275434和PCT/JP 00/02619中描述了延遲-增加劑的具體實(shí)例。軸角度測(cè)試儀：KOBRA軸角度測(cè)試儀。蘇州日本大冢軸角度測(cè)試儀</p><p style="text-indent:25px">相位差R0 定義：在XY方向光的行進(jìn)距離會(huì)產(chǎn)生差異，平面方向的相位差（R0）。蘇州 PVA吸收軸角度測(cè)試儀</p><p style="text-indent:25px">偏光片是將一般不具有偏極性的自然光變成偏振光的光學(xué)元件。所有的液晶面板都有上下兩片偏光片，其中一個(gè)是起偏器，一個(gè)是檢偏器。偏光片起到光開關(guān)的作用，液晶顯示器必須依靠偏振光才可成像。背光模組負(fù)責(zé)為液晶屏顯像提供**基本的光源，但送出來的光線方向性不一致，呈放射狀，如果這樣的光線通過液晶分子的扭轉(zhuǎn)，我們?cè)谄聊簧峡吹降目赡苁前酌Ｃ５囊黄?，或者是花花綠綠的色塊。下偏光片則承擔(dān)了將光線的方向規(guī)范成一致后再送往液晶層的工作。液晶分子在TFT控制下發(fā)生扭轉(zhuǎn)，達(dá)到將方向一致的光線通亮進(jìn)行控制，從而在通往后面像素單元的光線明暗度發(fā)生了改變。液晶本身沒有顏色，所以用濾**產(chǎn)生各種顏色。原本方向一致光線經(jīng)過了液晶層的扭轉(zhuǎn)后又變得方向不一致，所以如果不把呈漫射狀的光線再次規(guī)整，則在屏幕前看到的依然是白茫茫一片，被液晶扭轉(zhuǎn)過了的光線并沒有體現(xiàn)出來，所以必須在此將漫射光進(jìn)行規(guī)整，使用一片與下偏光片偏光方向正交偏光片將經(jīng)過液晶扭轉(zhuǎn)的光心重新進(jìn)行偏轉(zhuǎn)，不同角度的光線經(jīng)過上偏光板的亮度不同，所以我們可以在屏幕上可以看到明暗交替畫面，因?yàn)楸黄D(zhuǎn)的光線是經(jīng)過了彩色濾**的彩色光，所以我們?cè)谄聊磺翱梢钥吹轿覀冃枰膱D像。蘇州 PVA吸收軸角度測(cè)試儀</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1903553.html</p></div></div></div></div></div><div id="uu8ug39" class="page-right twoColRt"><div id="qkrelnu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8pj8if7" class="recomPic 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