单孔中空涤纶增强橡胶基复合材料吸声性能
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摘要
以氢化羧基丁腈橡胶(简称"HXNBR")为基体,单孔中空涤纶(简称"SHHPF")为增强体,制取了HXNBR/SHHPF材料,对其吸声性能进行了研究。结果表明:1 mm厚的HXNBR/SHHPF材料随着SHHPF的使用及用量增加,吸声性能逐渐得到改善,在SHHPF用量为40%时为最佳,2500 Hz处的吸声系数增至0. 671,吸声系数大于0. 2的有效频域拓宽至1800 Hz～2500 Hz,但SHHPF用量进一步增至50%时吸声性能有所下降;保持HXNBR与SHHPF的质量比为80/20不变,逐渐将材料厚度从1 mm增加至5 mm,材料的吸声性能也随之得到改善,但在3 mm后再增加厚度其改善已较小,且改善呈现往中频移动的趋势; HXNBR/SHHPF材料在吸声性能得到改善的同时,其拉伸力学性能也得到显著改善,有助于材料的实际应用。
A series of single-hole hollow polyester( abbreviated SHHPF) reinforced hydrogenated carboxyl nitrile rubber( abbreviated HXNBR) composites were fabricated. The sound absorption properties were investigated.The results indicate that the sound absorption property of HXNBR/SHHPF composite with thickness of 1 mm was remarkably improved with increasing SHHPF content. At SHHPF content of 40%,the sound absorption property is the best. The sound absorption coefficient at frequency 2500 Hz was increased to 0. 671,and the effective bandwidth was 1800 Hz ～ 2500 Hz for sound absorption coefficient larger than 0. 2. However,sound absorption property was degraded when the SHHPF content grows to 50%. While,with the HXNBR/SHHPF mass ratio of 80/20,the sound absorption property was improved by increasing thickness of composites from 1 mm to 5 mm. However,the improvement through increasing thickness was relatively small after 3 mm,and the improvement was moved to medium frequency. At the same time,tensile mechanical property of HXNBR/SHHPF was also improved significantly,which benefits for its practical application.
A series of single-hole hollow polyester( abbreviated SHHPF) reinforced hydrogenated carboxyl nitrile rubber( abbreviated HXNBR) composites were fabricated. The sound absorption properties were investigated.The results indicate that the sound absorption property of HXNBR/SHHPF composite with thickness of 1 mm was remarkably improved with increasing SHHPF content. At SHHPF content of 40%,the sound absorption property is the best. The sound absorption coefficient at frequency 2500 Hz was increased to 0. 671,and the effective bandwidth was 1800 Hz ～ 2500 Hz for sound absorption coefficient larger than 0. 2. However,sound absorption property was degraded when the SHHPF content grows to 50%. While,with the HXNBR/SHHPF mass ratio of 80/20,the sound absorption property was improved by increasing thickness of composites from 1 mm to 5 mm. However,the improvement through increasing thickness was relatively small after 3 mm,and the improvement was moved to medium frequency. At the same time,tensile mechanical property of HXNBR/SHHPF was also improved significantly,which benefits for its practical application.
引文
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[24] Manaila E,Stelescu M D,Doroftei F. Polymeric composites based on natural rubber and hemp fibers[J]. Iranian Polymer Journal,2015,24(2):135-148.
[25] Leny M,Sunil K N. Cure Characteristics and mechanical properties of HRH nonded nylon-6 short fiber-nanosilica-acrylonitrile butadiene rubber hybrid composite[J]. Polymer-Plastics Technology and Engineering,2009,48(1):75-81.
[26] Zainudin E S,Yan L H,Haniffah W H,et al. Effect of coir fiber loading on mechanical and morphological properties of oil palm fibers reinforced polypropylene composites[J]. Polymer Composites,2014,35(7):1418-1425.
[27] Han Z,Qi S,Wei L,et al. Surface-modified polyimide fiber-filled ethylenepropylenediene monomer insulations for a solid rocket motor:processing,morphology,and properties[J]. Industrial&Engineering Chemistry Research,2013,52(3):1284-1290.
[2] Liu X T,Yan X,Li L,et al. Sound-absorption properties of kapok fiber nonwoven fabrics at low frequency[J]. Journal of Natural Fibers,2015,12(4):311-322.
[3] Yan R S,Wang R,Lou C W,et al. Manufacturing technique and acoustic evaluation of sandwich laminates reinforced high-resilience inter/intra-ply hybrid composites[J]. Fibers&Polymers,2014,15(10):2201-2210.
[4]黄光速,吴锦荣,郑静.橡胶阻尼材料的研究进展[J].高分子通报,2014(5):49-56.
[5] Yang D W,Zhao X Y,Chan T,et al. Investigation of the damping properties of hindered phenol AO-80/polyacrylate hybrids using molecular dynamics simulations in combination with experimental methods[J]. Journal of Material Science,2016,51(12):5760-5774.
[6]耿晓燕,郭大通,赵德涛,等.滑动接枝共聚物/丁腈橡胶复合材料及其阻尼性能[J].复合材料学报,2016,33(7):1454-1460.
[7]汤振杰,朱正吼,马广斌,等.丁基橡胶复合材料薄片吸声性能研究[J].功能材料,2008,39(1):133-135.
[8] Tomyangkul S,Pongmuksuwan P,Harnnarongchai W,et al. Enhancing sound absorption properties of open-cell natural rubber foams with treated bagasse and oil palm fibers[J]. Journal of Reinforced Plastics&Composites,2016,35(8):688-698.
[9] Huang Y,Zhou D,Xie Y C,et al. Tunable sound absorption of silicone rubber materials via mesoporous silica[J]. Rsc Advances,2014,4(29):15171-15179.
[10]姜生,晏雄. CPE/涤纶七孔短纤弹性体复合材料的吸声性能[J].纺织学报,2010,31(3):32-35.
[11] Jiang S,Xu Y Y,Zhang H P,et al. Seven-hole hollow polyester fibers as reinforcement in sound absorption chlorinated polyethylene composites[J]. Applied Acoustics,2012,73(3):243-247.
[12] Zhou X O,Jang S,Yan X,et al. Damping acoustic properties of reclaimed rubber/seven-hole hollow polyester fibers composite materials[J]. Journal of Composite Materials, 2013, 48(30):3719-3726.
[13]姜生.中空纤维增强废橡胶基吸声复合材料的结构与性能[J].高分子材料科学与工程,2015,31(12):73-77.
[14]姜生.尼龙纤维增强纺织废胶吸声复合材料的性能[J].复合材料学报,2015,32(6):1567-1572.
[15]金仲,吴晓宇,罗筑,等.锦纶纤维的络合改性及锦纶/天然橡胶复合材料性能的研究[J].化工新型材料,2015,43(4):149-151.
[16]夏忠林,罗筑,娄金分,等.芳纶纤维增强天然橡胶性能的研究[J].特种橡胶制品,2013,34(6):15-20.
[17]苏文,李新禹,刘树森.厚度和容重对非织造布吸声材料吸声性能的影响[J].天津工业大学学报,2009,28(3):34-36.
[18] Lou C W,Lin J H,Su K H. Recycling polyester and polypropylene nonwoven selvages to produce functional sound absorption composites[J]. Textile Research Journal,2005,75(5):390-394.
[19] Hassanzadeh S,Hasani H,Zarrebini M. Analysis and prediction of the noise reduction coefficient of lightly-needled Estabragh/polypropylene nonwovens using simplex lattice design[J]. The Journal of the Textile Institute,2014,105(3):256-263.
[20] Lee Y E,Joo C W. Sound absorption properties of thermally bonded nonwovens based on composing fibers and production parameters[J].Journal of Applied Polymer Science,2004,92(4):2295-3302.
[21] Seddeq H S,Aly N M,Ali M A,et al. Investigation on sound absorption properties for recycled fibrous materials[J]. Journal of Industrial Textiles,2013,43(1):56-73.
[22] Wang C N,Torng J H. Experimental study of the absorption characteristics of some porous fibrous materials[J]. Applied Acoustics,2001,62(4):447-459.
[23]沈岳,蒋高明,季涛,等.活性炭纤维材料吸声性能分析[J].纺织学报,2013,34(3):1-4.
[24] Manaila E,Stelescu M D,Doroftei F. Polymeric composites based on natural rubber and hemp fibers[J]. Iranian Polymer Journal,2015,24(2):135-148.
[25] Leny M,Sunil K N. Cure Characteristics and mechanical properties of HRH nonded nylon-6 short fiber-nanosilica-acrylonitrile butadiene rubber hybrid composite[J]. Polymer-Plastics Technology and Engineering,2009,48(1):75-81.
[26] Zainudin E S,Yan L H,Haniffah W H,et al. Effect of coir fiber loading on mechanical and morphological properties of oil palm fibers reinforced polypropylene composites[J]. Polymer Composites,2014,35(7):1418-1425.
[27] Han Z,Qi S,Wei L,et al. Surface-modified polyimide fiber-filled ethylenepropylenediene monomer insulations for a solid rocket motor:processing,morphology,and properties[J]. Industrial&Engineering Chemistry Research,2013,52(3):1284-1290.