發(fā)布時間：2018-01-14 18:18

  本文關(guān)鍵詞：天然橡膠基磁流變彈性體的制備及性能研究　出處：《南京理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 天然橡膠 羰基鐵粉 磁流變 硫化工藝 結(jié)構(gòu)設(shè)計

【摘要】：磁流變彈性體(Magnetorheological elastomer,MRE)作為磁流變材料的新的分支,具有模量可控、可逆和響應(yīng)快等特性,在減振降噪和振動控制領(lǐng)域有著廣泛的應(yīng)用前景。但是目前報道的MRE材料存在物理機(jī)械性能差、磁流變效應(yīng)較低等一些問題,影響其在工程上的應(yīng)用。針對上述問題,本文以制備出兼具優(yōu)良的力學(xué)性能和磁流變性能的實用型MRE材料為目標(biāo),將羰基鐵粉填充到天然橡膠中,設(shè)計了一種MRE一步固化成型制備系統(tǒng)、MRE靜態(tài)力學(xué)性能測試系統(tǒng)和動態(tài)力學(xué)性能測試系統(tǒng);研究了制備工藝、羰基鐵粉牌號和羰基鐵粉的用量對MRE力學(xué)性能和磁流變性能的影響。研究結(jié)果表明:膠料的塑煉工藝、混煉工藝和硫化溫度等對MRE的性能具有較大的影響,在三種不同硫化溫度(128℃、133℃、143℃)中,128℃下羰基鐵粉在基體中的鏈狀排列最為明顯,磁致模量最高;不同增塑劑用量對MRE的影響不同,16份古馬隆用量的硫化膠磁流變性能和物理機(jī)械性能最好;羰基鐵粉的加入提高了膠料的熱穩(wěn)定性和損耗因子,促進(jìn)了膠料的硫化,但拉伸性能有所降低,羰基鐵粉用量60wt%的MRE磁流變效應(yīng)最好,拉伸強(qiáng)度達(dá)10.56MPa,有較好的物理機(jī)械性能和磁流變性能;四種羰基鐵粉(EW、SM、SQ、CM)對MRE性能的影響不同,牌號SM的羰基鐵粉在基體中鏈狀取向最明顯,硫化膠磁流變性能最好。
[Abstract]:As a new branch of magnetorheological elastomer, Magnetorheological elastomer (MREE) has the characteristics of controllable modulus, reversible and fast response. It has a wide application prospect in the field of vibration reduction and vibration control. However, the reported MRE materials have some problems such as poor physical and mechanical properties, low magneto-rheological effect and so on. In view of the above problems, a practical MRE material with excellent mechanical properties and magneto-rheological properties was prepared, and carbonyl iron powder was filled into natural rubber. In this paper, a MRE one-step curing molding system is designed, which includes static mechanical properties testing system and dynamic mechanical properties testing system. The effects of preparation technology, carbonyl iron powder grade and amount of carbonyl iron powder on the mechanical properties and magnetorheological properties of MRE were studied. The mixing process and curing temperature have great influence on the properties of MRE, in three different vulcanization temperatures (128 鈩，

本文編號：1424748