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)增加制作成本，故需要對PAM的水解度進(jìn)行檢測。</div><div>　　</div><div>　　聚丙烯酰胺結構單元中含有酰胺基、易形成氫鍵、使其具有良好的水溶性和很高的化學(xué)活性，易通過(guò)接枝或交聯(lián)得到支鏈或網(wǎng)狀結構的多種改性物，在石油開(kāi)采、水處理、紡織、造紙、選礦、醫藥、農業(yè)等行業(yè)中具有廣泛的應用，有“百業(yè)助劑”之稱(chēng)。</div><div>　　</div><div>　　<strong>改性聚丙烯酰胺水解度的測定：</strong></div><div>　　</div><div>　　檢測方法：</div><div>　　</div><div>　　1、依據標準：GB/T17514-2008《水處理劑聚丙烯酰胺》</div><div>　　</div><div>　　2、測試方法：取樣約0.03g置于100mL水中溶解，用鹽酸標準溶液滴定至pH為4.1時(shí)，即為終點(diǎn)。</div><div>　　</div><div>　　測試步驟</div><div>　　</div><div>　　1、對pH電極進(jìn)行標定，</div><div>　　</div><div>　　2、將100ml水倒入滴定杯中置于攪拌器上，開(kāi)啟攪拌器。稱(chēng)取約0.03g粉狀試樣，精確至0.2mg。加入到滴定杯中，使其*溶解。采用預設終點(diǎn)模式，設置好參數后用鹽酸標準溶液滴定溶液滴定至終點(diǎn)。</div><div>　　</div><div>　　注意：由于改性聚丙烯酰胺水解后，隨時(shí)間的延長(cháng)而粘度越大，下攪拌難以維持轉速，所以本次實(shí)驗推薦用上攪拌進(jìn)行測試，需要額外配置上攪拌裝置。</div></div> <div id="tal2qhr" class="ye">上一篇：<a href="/Article-869772.html">了解陽(yáng)離子聚丙烯酰胺</a> 下一篇：<a href="/Article-866691.html">了解陰離子聚丙烯酰胺</a></div> </div>  </div>  </div> </div> </div> </div> </article> </div> <div 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