摘要
以自制丙烯酸树脂为基体,制备了一种新型的隔音降噪材料。研究了基体改性、添加增韧剂以及增韧剂用量等因素对复合材料隔音性能的影响,并借助四麦克风阻抗管法对丙烯酸树脂基复合材料的隔音性能进行了研究,同时通过扫描电镜观察了材料的表面形貌。通过研究发现:基体改性后材料在50~280Hz及900~1600Hz的频率范围内隔音性能增加;增韧剂种类对材料的隔音性能影响不大,但材料的隔音性能随增韧剂用量的增加而降低,因此在增韧剂的用量上要选择合适的含量,在达到增韧的同时能满足材料的隔音性能。
A new type of sound insulating material was prepared based on self-made acrylic resin. The sound insulating properties of acrylic resin-based materials were tested by four-microphone impedance tube method. The effects of matrix modification, different types and amounts of toughening agents on the sound insulating performance were studied, and the surface morphology of the material was observed by scanning electron microscopy. It was found that after the matrix modification the sound insulating performance in the frequency range between 50-280Hz and 900＋ 1600Hz was improved; the types of toughening agent had little effect on the sound insulating performance, however it would decline along with the in- ereasing of toughening agent amount, therefore an appropriate content of the toughening agent would be necessary, in order to satisfy both the tough- ening effect and sound insulating performance.
出处
《化学与粘合》
CAS
2017年第4期271-274,共4页
Chemistry and Adhesion
关键词
隔音
降噪材料
丙烯酸树脂
改性
增韧剂
Sound insulation
noise reduction material
acrylic resin
modification
toughening agent
