天然橡胶/集成橡胶并用胶的相态结构及性能
|
摘要
研究了天然橡胶/集成橡胶(NR/SIBR)的并用比(质量比)对胶料的相态结构、力学性能、动态力学性能、耐切割性能、耐磨性能和压缩疲劳生热的影响。结果表明,NR/SIBR并用比为20/80时,并用胶的相态结构均匀;并用比为30/70和40/60时,并用胶呈现明显的相分离结构;NR/SIBR并用比为40/60时,表现出2个玻璃化转变温度。与纯SIBR相比,NR/SIBR并用胶的动态损耗峰变宽,拉伸强度和撕裂强度变化不大,但耐切割性能、耐磨性能有所降低,压缩疲劳生热有所增加。
The effects of blending ratio( mass ratio) of natural rubber / integrated rubber( NR /SIBR) blends on micromorphology, mechanical properties,dynamical mechanical properties,cutting resistance,wear resistance and heat build-up of compression fatigue of blends were investigated. The results showed that the micromorphology of NR / SIBR blends was uniform as the blending ratio was 20 /80. The NR / SIBR blends exhibited evident phase separation as the blending ratio was 30 /70 and 40 /60, and two glass-transition temperatures as the blending ratio was 40 /60. The dynamic loss factor peaks of NR / SIBR blends broadened, tensile strength and tear strength changed little,but cutting resistance and wear resistance decreased,and heat built-up of compression fatigue increased compared with those of pure SIBR.
The effects of blending ratio( mass ratio) of natural rubber / integrated rubber( NR /SIBR) blends on micromorphology, mechanical properties,dynamical mechanical properties,cutting resistance,wear resistance and heat build-up of compression fatigue of blends were investigated. The results showed that the micromorphology of NR / SIBR blends was uniform as the blending ratio was 20 /80. The NR / SIBR blends exhibited evident phase separation as the blending ratio was 30 /70 and 40 /60, and two glass-transition temperatures as the blending ratio was 40 /60. The dynamic loss factor peaks of NR / SIBR blends broadened, tensile strength and tear strength changed little,but cutting resistance and wear resistance decreased,and heat built-up of compression fatigue increased compared with those of pure SIBR.
引文
[1]Nordsiek K H.The‘Integral Rubber’concept:An approach to an ideal tire tread rubber[J].Kautschuk und Gummi Kunststoff,1985,38(3):178-185.
[2]Marwede G W,Stollfu B.Current status of tire elastomers in Europe[J].Kautschuk und Gummi Kunststoff,1993,46(5):380.
[3]Halasa A F,Gross B,Hsu B,et al.SIBR for high performance tires[J].European Rubber Journal,1990,172(6):35-38.
[4]蔡尚脉,李花婷,于国柱,等.集成橡胶在高性能轿车子午线轮胎胎面胶中的应用[J].中国橡胶,2011,27(18):76-82.
[5]崔英,谢恩林,龚光碧,等.二乙烯基苯(DVB)对集成橡胶SIBR性能的影响[J].应用化工,2012,41(3):668-671.
[6]Halasa A F.Multiple glass transition terpolymers of isoprene,butadiene,and styrene[J].Rubber Chemistry and Technology,2010,83(4):380-390.
[7]Zhao Suhe,Zou Hua,Zhang Xingying.Structural morphology and properties of star styrene-isoprene-butadiene rubber and natural rubber/star styrene-butadiene rubber and natural rubber/star styrene-butadiene rubber blends[J].Journal of Applied Polymer Science,2004,93(1):336-341.
[2]Marwede G W,Stollfu B.Current status of tire elastomers in Europe[J].Kautschuk und Gummi Kunststoff,1993,46(5):380.
[3]Halasa A F,Gross B,Hsu B,et al.SIBR for high performance tires[J].European Rubber Journal,1990,172(6):35-38.
[4]蔡尚脉,李花婷,于国柱,等.集成橡胶在高性能轿车子午线轮胎胎面胶中的应用[J].中国橡胶,2011,27(18):76-82.
[5]崔英,谢恩林,龚光碧,等.二乙烯基苯(DVB)对集成橡胶SIBR性能的影响[J].应用化工,2012,41(3):668-671.
[6]Halasa A F.Multiple glass transition terpolymers of isoprene,butadiene,and styrene[J].Rubber Chemistry and Technology,2010,83(4):380-390.
[7]Zhao Suhe,Zou Hua,Zhang Xingying.Structural morphology and properties of star styrene-isoprene-butadiene rubber and natural rubber/star styrene-butadiene rubber and natural rubber/star styrene-butadiene rubber blends[J].Journal of Applied Polymer Science,2004,93(1):336-341.