聚酯(zhi)纖維吸音板(ban)的(de)吸音原理(li)：

　　是(shi)材(cai)料(liao)內部(bu)(bu)有(you)(you)(you)大(da)(da)(da)量(liang)(liang)微小(xiao)的(de)連(lian)通(tong)(tong)的(de)孔(kong)(kong)隙(xi)，聲(sheng)(sheng)(sheng)(sheng)波沿(yan)著(zhu)這(zhe)些(xie)孔(kong)(kong)隙(xi)可以(yi)深(shen)(shen)入材(cai)料(liao)內部(bu)(bu)，與材(cai)料(liao)發生摩擦作用將聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)轉化為(wei)熱能(neng)(neng)。屬多(duo)孔(kong)(kong)吸聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)，吸聲(sheng)(sheng)(sheng)(sheng)特性是(shi)隨著(zhu)頻率的(de)增高吸聲(sheng)(sheng)(sheng)(sheng)系數(shu)逐漸增大(da)(da)(da)，這(zhe)意味(wei)著(zhu)低頻吸收沒有(you)(you)(you)高頻吸收好。多(duo)孔(kong)(kong)材(cai)料(liao)吸聲(sheng)(sheng)(sheng)(sheng)的(de)必要條件是(shi) :材(cai)料(liao)有(you)(you)(you)大(da)(da)(da)量(liang)(liang)空隙(xi)，這(zhe)些(xie)空隙(xi)無(wu)數(shu)連(lian)綿(mian)的(de)在一(yi)起組成通(tong)(tong)道。錯(cuo)誤(wu)認(ren)識之一(yi)是(shi)認(ren)為(wei)表(biao)面(mian)粗糙的(de)材(cai)料(liao)具(ju)(ju)有(you)(you)(you)吸聲(sheng)(sheng)(sheng)(sheng)性能(neng)(neng)，其(qi)實(shi)不然(ran)，例如拉(la)毛水泥、表(biao)面(mian)凸凹的(de)石才基本不具(ju)(ju)有(you)(you)(you)吸聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)力。錯(cuo)誤(wu)認(ren)識之二(er)是(shi)認(ren)為(wei)材(cai)料(liao)內部(bu)(bu)具(ju)(ju)有(you)(you)(you)大(da)(da)(da)量(liang)(liang)孔(kong)(kong)洞的(de)材(cai)料(liao)，如聚苯、聚乙烯(xi)、閉(bi)孔(kong)(kong)聚氨脂等(deng)，具(ju)(ju)有(you)(you)(you)良好的(de)吸聲(sheng)(sheng)(sheng)(sheng)性能(neng)(neng)，事實(shi)上，這(zhe)些(xie)材(cai)料(liao)由于內部(bu)(bu)孔(kong)(kong)洞沒有(you)(you)(you)連(lian)通(tong)(tong)性，聲(sheng)(sheng)(sheng)(sheng)波不能(neng)(neng)深(shen)(shen)入材(cai)料(liao)內部(bu)(bu)振動摩擦，因此吸聲(sheng)(sheng)(sheng)(sheng)系數(shu)很(hen)小(xiao)。

　　而(er)(er)聚酯纖維吸(xi)音板(ban)與空腔體構成的(de)吸(xi)聲(sheng)體結構的(de)吸(xi)聲(sheng)機理是薄板(ban)共振(zhen)吸(xi)聲(sheng)。在共振(zhen)頻率上，由(you)于薄板(ban)劇烈(lie)振(zhen)動而(er)(er)大量(liang)吸(xi)收聲(sheng)能(neng)。對中(zhong)高低(di)頻均有良(liang)好的(de)吸(xi)聲(sheng)性能(neng)。

　　總(zong)而(er)言之聚(ju)酯纖維吸(xi)音(yin)板具有(you)良好的吸(xi)音(yin)效果(guo)，環(huan)保(bao)健康，是大家不錯的選擇。