吸聲材料和隔熱保溫材料
日期：2016/11/10 15:13:46
20世(shi)紀(ji)50~60年代，當時(shi)國內(nei)(nei)吸(xi)(xi)(xi)聲(sheng)材(cai)料品種很少，木(mu)(mu)(mu)絲(si)(si)(si)板(ban)是(shi)主要的(de)吸(xi)(xi)(xi)聲(sheng)材(cai)料和(he)(he)隔(ge)熱保(bao)(bao)溫(wen)材(cai)料。在(zai)工業和(he)(he)民用(yong)(yong)建筑中(zhong)(zhong)獲得(de)廣(guang)泛的(de)應用(yong)(yong)。特別(bie)是(shi)常見在(zai)電影院、劇(ju)院、錄音室(shi)(shi)、演播(bo)室(shi)(shi)、廣(guang)播(bo)室(shi)(shi)、電話室(shi)(shi)、會議室(shi)(shi)、報告廳(ting)、禮堂等建筑中(zhong)(zhong)使用(yong)(yong)，起(qi)控制(zhi)混(hun)響(xiang)時(shi)間(jian)的(de)作(zuo)用(yong)(yong)。如20世(shi)紀(ji)60年代初，同(tong)濟大(da)學(xue)新建的(de)約(yue)4000座大(da)禮堂，長60m、寬40 m拱形(xing)(xing)鋼筋混(hun)凝土薄殼屋頂(ding)，兩側(ce)墻安裝玻(bo)璃窗，屋頂(ding)和(he)(he)前(qian)后(hou)墻面選(xuan)用(yong)(yong)木(mu)(mu)(mu)絲(si)(si)(si)板(ban)作(zuo)為吸(xi)(xi)(xi)聲(sheng)材(cai)料，控制(zhi)廳(ting)內(nei)(nei)的(de)混(hun)響(xiang)時(shi)間(jian)以及拱形(xing)(xing)屋頂(ding)的(de)聲(sheng)聚(ju)焦(jiao)，為擴聲(sheng)提(ti)供良好的(de)聲(sheng)環境。其屋頂(ding)鋪設木(mu)(mu)(mu)絲(si)(si)(si)板(ban)除起(qi)吸(xi)(xi)(xi)聲(sheng)作(zuo)用(yong)(yong)外，還起(qi)隔(ge)熱保(bao)(bao)溫(wen)作(zuo)用(yong)(yong)。該禮堂內(nei)(nei)的(de)木(mu)(mu)(mu)絲(si)(si)(si)板(ban)使用(yong)(yong)40多(duo)年，除表(biao)面做過噴涂(tu)維修(xiu)之外，木(mu)(mu)(mu)絲(si)(si)(si)板(ban)仍保(bao)(bao)持(chi)完整，這表(biao)明木(mu)(mu)(mu)絲(si)(si)(si)板(ban)具有(you)相當的(de)耐久(jiu)性。同(tong)時(shi)木(mu)(mu)(mu)絲(si)(si)(si)板(ban)還用(yong)(yong)于(yu)(yu)水泵房、風機房進(jin)行吸(xi)(xi)(xi)聲(sheng)降(jiang)噪。由于(yu)(yu)木(mu)(mu)(mu)絲(si)(si)(si)板(ban)在(zai)吸(xi)(xi)(xi)聲(sheng)材(cai)料中(zhong)(zhong)具有(you)較高強度和(he)(he)剛度，表(biao)面抹灰(hui)后(hou)能起(qi)隔(ge)聲(sheng)作(zuo)用(yong)(yong)，又是(shi)一種輕質隔(ge)聲(sheng)材(cai)料，可(ke)用(yong)(yong)于(yu)(yu)室(shi)(shi)內(nei)(nei)分(fen)隔(ge)墻