共查询到20条相似文献,搜索用时 79 毫秒
1.
研究不同裂解温度下废旧轮胎裂解炭黑的性质及其在天然橡胶中的应用,并与炭黑N330和炭黑N660进行对比。结果表明:与炭黑N330和炭黑N660相比,裂解炭黑的吸碘值大,结构度偏低,灰分含量偏高;裂解温度越高,裂解炭黑的理化性能越好;裂解炭黑填充胶料的门尼粘度比炭黑N330填充胶料略高,t90缩短;裂解炭黑填充胶料的拉伸强度与炭黑N660填充胶料相当,略小于炭黑N330填充胶料;对比3种裂解炭黑,裂解炭黑S1填充胶料的拉伸强度最大,裂解炭黑S3填充胶料的300%定伸应力最大;在相同应变范围内,裂解炭黑S3填充胶料的损耗因子较小,生热较低。 相似文献
2.
采用氨基化纤维素纳米晶(CCP)与裂解炭黑(CBp)球磨杂化,CBp/CCP(CBC)杂化体浆料经喷雾干燥后得到CBC杂化体粉末,将其用于天然橡胶(NR)补强。结果表明:CCP与CBp均匀杂化,有效阻止了CCP的团聚,提高了CBp在NR中的分散性;得益于NR/CBC复合材料的交联密度提高和CCP与CBp的协同补强作用以及CBC杂化体粉末在NR基体中的均匀分散,NR/CBC复合材料的物理性能显著提高,CBp/CCP质量比为85/15的CBC杂化体粉末的NR/CBC复合材料的300%定伸应力、拉伸强度和撕裂强度比NR/CBp复合材料分别提高了30.4%,14.9%和75.7%,DIN磨耗量减小了13.7%,压缩温升降低。选用生物基填料CCP作为共杂化材料,以球磨杂化、喷雾干燥方式对CBp进行提质改性,为便捷制备高性能NR/CBp复合材料提供了可能,有利于推动CBp的高附加值利用及解决废旧轮胎的污染问题。 相似文献
3.
4.
研究轮胎热裂解炭黑的补强性能及其在轮胎胎体中的应用情况。结果表明:轮胎热裂解炭黑胶料的物理性能优于炭黑N660等软质炭黑胶料;在轻型载重子午线轮胎胎体中以热裂解炭黑RT-F04部分替代炭黑N660,提高了胶料的物理性能和工艺性能,降低了胶料压延过程中的工艺损耗,且配方成本降低,成品轮胎性能较优。 相似文献
5.
6.
7.
8.
研究与60份炭黑N660相比,15份废旧轮胎裂解炭黑(CBp)/45份炭黑N660并用对轮胎溴化丁基橡胶(BIIR)气密层胶性能的影响。结果表明:与炭黑N660相比,CBp的灰分含量和筛余物含量大,DBP吸收值略小;与60份炭黑N660填充的BIIR胶料相比,15份CBp/45份炭黑N660并用填充的BIIR胶料的硫化特性变化不大,拉断伸长率减小,300%定伸应力和拉伸强度增大,耐热空气老化性能无明显变化,气密性相当,即采用15份CBp替代15份炭黑N660的BIIR气密层胶在保证使用性能的前提下,有效降低了生产成本。 相似文献
9.
10.
11.
12.
Properties of solution styrene butadiene rubber (SSBR), based on passenger car tire tread formulation, filled with silica/carbon black/halloysite nanotube (SiO2/CB/HNT) hybrid filler were investigated. Effect of HNT was studied by partially replacing CB in the reference compound with 0–16 phr of HNT. With increasing HNT content, mechanical properties such as modulus, hardness, tensile strength, tear strength and abrasion resistance are impaired, due to the combination of low specific surface area of HNT (compared with CB), poor rubber-HNT interaction and poor HNT dispersion. However, the partial replacement of CB with HNT leads to the improvement of wet grip and rolling resistance. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 46987. 相似文献
13.
14.
15.
16.
Franco Cataldo 《大分子材料与工程》2005,290(5):463-467
Summary: Pyrolytic carbon black (CBp) has been prepared by rubber crumb pyrolysis under nitrogen flow at 700 °C. The CBp obtained by this process had an average surface area of 81 m2 · g?1 and was obtained in 43% yield over the starting rubber crumb. Although the CBp surface area can be increased up to 109 m2 · g?1 by washing away the Zn‐ and Si‐based ashes with HF treatment, the CBp was tested in a standard NR/SBR‐based formulation without any purification and ash extraction. CBp was tested at increasing loading levels as partial or full replacement of a standard N339 furnace carbon black. CBp depresses the physical properties of the rubber compound in a way which is directly proportional to the amount added. The reason of this result and the limited reinforcing effect is discussed in terms of low surface area and low structure in comparison to N339 carbon black as well as in terms of low surface activity, the interference of the ashes and the poor dispersion. Ideas of further development works are outlined.
17.
18.
19.
The properties of hybrid multiwall carbon nanotube (MWCNT) and carbon black (CB) in natural rubber nanocomposites were studied. The results show that the scorch and cure time decreased as the MWCNT loading increased in CB/MWCNT hybrid loading ratio but for the maximum torque, the result shown otherwise. As the MWCNT loading increased in CB/MWCNT hybrid loading ratio, the tensile strength, elongation at break and fatigue life are decrease, however the tensile modulus and rubber filler-interaction (Qf/Qg) value increased. The SEM results show a dispersion of CB and MWCNT in natural rubber matrix. Furthermore, the thermal stability for the hybrid nanocomposites is enhanced. 相似文献