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data-cmd="more"></a> <a href="#" class="bds_sqq" data-cmd="sqq" title="分享到QQ好友"></a> <a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信"></a> </div> <a href="#" class="scan" title="二維碼分享">二維碼分享 <div class="rlb7thzzbb" id="qrcode" style="display: none"> </div> </a> </span> </div> <div id="rlb7thzzbb" class="caseContainer"> <div> 市面上的隔音材料多種多樣，我們在選擇的時(shí)候經(jīng)常不知道該選哪種，接下來(lái)正耀環(huán)保的小編給你一些小妙招。 </div> <p> <br /> </p> <div> <br /> </div> <p> 首先選擇韌性好的隔音材料，為什么韌性很重要呢?好的房間隔音材料不但要彈性好，還要韌性強。一些劣質(zhì)隔音材料不但沒(méi)有彈性，而且韌性極差，用手輕輕一折就會(huì )斷開(kāi)。因此檢驗房間隔音材料時(shí)可以把隔音材料對折后使勁按壓。好的房間隔音材料當然折不斷，而且松開(kāi)后折過(guò)的地方也沒(méi)有折痕和變形，表面平整如新。而劣質(zhì)房間隔音材料要么輕易折斷，要么表面翹起變形。 </p> <p> 第二，注重<a href="http://www.www.sweetk.net/" target="_blank">隔音材料</a>的彈性。房間隔音材料的隔音效果好不好的另一個(gè)重要因素就是彈性。在大多數情況下，<strong><a href="http://www.www.sweetk.net/" target="_blank">隔音氈</a></strong>是配合石膏板、硅酸鈣板或壓力水泥板等板材使用的，良好的彈性可以減輕硬質(zhì)板材因聲波產(chǎn)生的震動(dòng)，從而達到增加隔聲量的作用。檢驗隔音氈彈性的簡(jiǎn)單辦法是將隔音氈裁成兩三公分寬的長(cháng)條，然后用雙手用力拉長(cháng)，如果能夠比較容易拉長(cháng)并且松勁后長(cháng)度恢復原狀，那恭喜您，這是好隔音氈;如果一拉就斷或者拉長(cháng)后不能恢復原狀，那很不幸，您中招了。 </p> <p style="text-align:center;"> <img src="http://img.dlwjdh.com/upload/11990/210121/1d15a79151cf0db6b6d21fdbaf7acedd.jpg" alt="西安隔音板" width="600" height="600" title="西安隔音板" align="" /> </p> <p> 第三，選擇密度大的隔音材料，房間隔音材料的隔音量遵循著(zhù)質(zhì)量定律原則，即單位密集面密度越大，隔音量就越大。面密度與隔音量成正比關(guān)系。因此，同樣單位面積的隔音材料，密度越大，質(zhì)量越大，隔音量也就越好。第四，拉力大的隔音材料是不錯的選擇。好的房間隔音材料還要有比較大的拉力(物理性能名詞叫做抗撕裂強度)。這個(gè)顧名思義，拿過(guò)來(lái)用手撕它，看能不能輕易地撕裂了。好的房間隔音材料如果不借助刀剪等工具是不容易撕裂的，而那些劣質(zhì)的所謂隔音材料用四個(gè)手指就能很容易的撕開(kāi)一個(gè)口子。 </p> <p style="text-align:center;"> <img src="http://img.dlwjdh.com/upload/11990/210112/644a1368892c94e8a830ad5a5737447f.jpg" alt="西安隔音板" width="600" height="600" title="西安隔音板" align="" /> </p> <div> <br /> </div> <div style="text-align:left;"> 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