CAJ | 학술논문

制备了一种聚酯碳硼烷胶粘剂，用IR、1H-NMR和13C-NMR对其结构做了分析。胶粘剂100℃固化物，二碳癸硼烷链段-C2B10H10-没有变化；450℃/1 h固化物已分解产生硼氧化物、芳环化物和碳化物。进行了TG和DSC分析，胶粘剂固化物氮气中500℃保温30 min残留率为76%，1000℃/30 min残留率为67%，有完好的外形。对于钛合金、石墨、不锈钢和碳耐高温材料，粘接件在500~800℃有2 MPa左右的拉剪强度。铝合金/镀铜聚酰亚胺薄膜粘接件和复合材料在150~200℃共固化时，不会脱粘，拉剪强度较高。胶粘剂耐温性起源于B-C、B-O键的高键能，碳硼烷的电子和立体结构，高温分解生成B-O键产物，高温加热进一步交联。胶粘剂可以用作耐高低温材料。
제비료일충취지탄붕완효점제，용IR、1H-NMR화13C-NMR대기결구주료분석。효점제100℃고화물，이탄계붕완련단-C2B10H10-몰유변화；450℃/1 h고화물이분해산생붕양화물、방배화물화탄화물。진행료TG화DSC분석，효점제고화물담기중500℃보온30 min잔류솔위76%，1000℃/30 min잔류솔위67%，유완호적외형。대우태합금、석묵、불수강화탄내고온재료，점접건재500~800℃유2 MPa좌우적랍전강도。려합금/도동취선아알박막점접건화복합재료재150~200℃공고화시，불회탈점，랍전강도교고。효점제내온성기원우B-C、B-O건적고건능，탄붕완적전자화입체결구，고온분해생성B-O건산물，고온가열진일보교련。효점제가이용작내고저온재료。
A carborane-containing polyester based polyurethane adhesive was prepared and its molecular structure 1 13was characterized by IR, H NMR and C NMR. For the cured adhesive at 100℃,the chain segment dicarbadodecaborane-C2B10H10- had no chemical change.The pyrolysis of adhesive in air at 450℃for 1 h produced the boronic oxides,aryl ring compounds and carbides.Having the integral outer shape,the residual of adhesive in N2 at 500℃for 30 min and at 1 000℃for 30 min were 76%(w) and 67%(w), respectively, by TG and DSC analysis.Bonding high temperature-resistant materials such as titanium,graphite,stainless steel and carbon composite,the bonded pieces had the lap shear strength of 2 MPa at 500-800℃.Cocured with composite at 150-200℃, the bonded piecess of Al-(Cu-plated) polyimide thin film-Al had no debonding and gave higher lap shear strength.The high temperature-resistance of adhesive ascribes to the high energies of B-C、B-O bonds,electric and steric structures of carboranes,pyrolysis products of boronic oxides and further crosslinking during high temperature heating.