<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; vertical-align: baseline; text-indent: 12pt; line-height: 150%; text-align: left;"><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">三防漆也叫</span><span><a href="http://www.sz-qthx.com/"><span style="font-size: 10.5pt; color: #333333; font-family: "Times New Roman"; text-decoration: underline; mso-spacerun: "yes";">PCB</span></a></span><span><a href="javascript:void(0);/*1251684932196*/"><span style="font-size: 10.5pt; color: #333333; font-family: "宋體"; text-decoration: underline; mso-spacerun: "yes";">電子線路板保護(hù)油、披覆油、防潮漆、三防涂料、防水膠、絕緣漆、防腐蝕漆、防鹽霧漆、防塵漆、保護(hù)漆、披覆漆、三防</span></a></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">膠等，其分類如下：</span><span style="font-size: 12pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">   </span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">三防漆從化學(xué)成分上可分為丙烯酸酯、硅酮、聚氨酯三防漆；而從固化方式上，有溶劑型固化，室溫固化、熱固化和紫外光固化等。它們工藝選擇一般由產(chǎn)品不同的黏度（不同的濃度有不同的固含量）決定。各三防漆廠家一般有自己的稀釋劑來(lái)稀釋配置不同濃度的產(chǎn)品，從而確定適合噴，刷，浸等不同工藝要求。</span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">1</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">、</span><span><a href="http://szwetai.chukou.com.cn/"><span style="font-size: 10.5pt; color: #333333; font-family: "宋體"; text-decoration: underline; mso-spacerun: "yes";">含溶劑丙烯酸樹脂三防漆（目前市場(chǎng)應(yīng)用較廣，大眾化產(chǎn)品）</span></a></span><span style="font-size: 12pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">特點(diǎn)：具有表干、固化時(shí)間快，較好的三防性，價(jià)格便宜，顏色透明，質(zhì)地柔韌、具有易于修正的特征。</span><span style="font-size: 12pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">2</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">、</span><span><a href="http://www.ledbao.com/ptcom/wetai1688.html"><span style="font-size: 10.5pt; color: #333333; font-family: "宋體"; text-decoration: underline; mso-spacerun: "yes";">不含溶劑丙烯酸樹脂三防漆</span></a></span><span style="font-size: 12pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">特點(diǎn)：</span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">UV</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">固化，可在幾秒到十幾秒表干，顏色透明，質(zhì)地較硬，防化學(xué)腐蝕和耐磨性也非常好。用紫外線來(lái)初始固化的三防漆，不需用溶劑。它們不燃燒，不含揮發(fā)性農(nóng)業(yè)生產(chǎn)體系化合物，完全符合現(xiàn)行和擬議中的環(huán)保法規(guī)。它們可提供很好的耐化學(xué)性能和耐熱性能，柔性好，表面光澤，粘附力強(qiáng)，覆蓋好。固化時(shí)問(wèn)短，是其他產(chǎn)品的幾分之一（以秒計(jì)算</span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">.</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">），通過(guò)提高生產(chǎn)率而大大降低了產(chǎn)品的成本。</span><span style="font-size: 12pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">3</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">、</span><span><a href="http://wetai1688.cn.jagol.com/free_index.html"><span style="font-size: 10.5pt; color: #333333; font-family: "宋體"; text-decoration: underline; mso-spacerun: "yes";">聚氨酯三防漆</span></a></span><span style="font-size: 12pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">特點(diǎn)：質(zhì)地較脆，有優(yōu)良的耐溶劑性能。除了優(yōu)越的防潮性能外，且在低溫環(huán)境下性能穩(wěn)定。</span><span style="font-size: 10.5pt; color: #333333; font-family: "Arial"; mso-spacerun: "yes";"></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; vertical-align: baseline; line-height: 150%; text-align: left;"><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">4</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">、</span><span><a href="http://wetai1688.qiugou.net.cn/"><span style="font-size: 10.5pt; color: #333333; font-family: "宋體"; text-decoration: underline; mso-spacerun: "yes";">農(nóng)業(yè)生產(chǎn)體系硅三防漆</span></a></span><span style="font-size: 10.5pt; color: #333333; font-family: "Arial"; mso-spacerun: "yes";"></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; vertical-align: baseline; line-height: 150%; text-align: left;"><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">特點(diǎn)：柔軟的彈性涂層材料，能很好的釋放壓力，耐高溫</span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";">200</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">度，易修正。硅酮類三防漆有耐溶劑型和溶劑清除型兩種產(chǎn)品。它們門用于高溫條件下，具有很好的耐化學(xué)腐蝕性和耐鹽噴特性。雖然耐溶劑型產(chǎn)品可以進(jìn)行悍接操作，但它很難被農(nóng)業(yè)生產(chǎn)體系溶劑所清除。它們非常大的特點(diǎn)是隨著時(shí)間的推移，化學(xué)鍵結(jié)合得越來(lái)越牢固。為達(dá)到較佳性能，如果需要的話可對(duì)其進(jìn)行熱固化。硅酮類產(chǎn)品具有顯著的電絕緣特性，使得它成為應(yīng)用于高電能和高集成線路板的理想產(chǎn)品。</span><span style="font-size: 12pt; color: #626273; font-family: "Times New Roman"; mso-spacerun: "yes";"><br /></span><span style="font-size: 9pt; color: #626273; font-family: "ˎ̥"; mso-spacerun: "yes";"><br /></span><span><a href="http://wetai.co.bokee.net/"><span style="font-size: 10.5pt; color: #333333; font-family: "宋體"; text-decoration: underline; mso-spacerun: "yes";">三防漆的選擇是根據(jù)不同種類的三防漆的特性和工作環(huán)境、電器性能要求和線路板布局等綜合考慮而定的</span></a></span><span style="font-size: 14pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">。</span><span style="font-size: 10.5pt; color: #333333; font-family: "Arial"; mso-spacerun: "yes";"></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; vertical-align: baseline; line-height: 150%; text-align: left;"><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">三防漆一般使用的條件和要求有：</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">1、工作環(huán)境</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">人們對(duì)于電子設(shè)備的物理抗性及化學(xué)抗性的要求各異，諸如耐壓性、抗震性及防水、耐酸堿腐蝕性等。因此，必須針對(duì)不同的工作環(huán)境，選用不同特性的三防漆。</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">2、電性能要求</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">三防漆應(yīng)具備很高的絕緣強(qiáng)度和擊穿電壓。三防漆較低的絕緣強(qiáng)度的要求可從印制線的間距以及相鄰印制線的電位差來(lái)確定。</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">3、線路板的布局</span><span style="font-size: 10.5pt; color: #333333; font-family: "Arial"; mso-spacerun: "yes";"></span></p> <p class="p0" style="margin-top: 5pt; margin-bottom: 5pt; vertical-align: baseline; line-height: 150%; text-align: left; padding: 7pt;"><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";">線路板的設(shè)計(jì)應(yīng)考慮到無(wú)需覆膜元器件的布放，包括連接器、IC插座、可調(diào)諧電位器和測(cè)試點(diǎn)，均應(yīng)置于線路板一側(cè)的邊緣，以達(dá)成較簡(jiǎn)單的涂覆工藝和較低的涂覆成本。</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-weight: bold; font-size: 12pt; color: #ff0000; font-family: "宋體"; mso-spacerun: "yes";">更多的三防漆應(yīng)用，滿足客戶的不同需求，詳情請(qǐng)與威泰化工聯(lián)系或登錄</span><span style="font-weight: bold; font-size: 12pt; color: #ff0000; font-family: "宋體"; mso-spacerun: "yes";">威泰化工網(wǎng)站http://www.sz-qthx.Com</span><span style="font-size: 12pt; color: #626273; font-family: "宋體"; mso-spacerun: "yes";"><br /></span><span style="font-size: 10.5pt; color: #333333; font-family: "Arial"; mso-spacerun: "yes";"></span></p> <!--EndFragment-->