Journal of Elastomers & Plastics ( IF 1.7 ) Pub Date : 2021-05-12 , DOI: 10.1177/00952443211015357 Mirosława Prochoń 1 , Jacek Sawicki 2 , Maciej Reda 2 , Piotr Sirek 2 , Małgorzata Suwalska 2 , Bartosz Werstak 2
The aim of this article was to determine the impact of using shot blasting dust as a filler in natural rubber (NR) composites. Increasing filler contents were used, from 0 to 30 parts by weight per 100 g of rubber. Examination of the wetting characteristics of the dust confirmed its hydrophobic nature. This characteristic makes it easier to introduce dust into the elastomer structure, with better binding to the mixture ingredients. FTIR spectra confirmed the presence of the filler in the elastomer matrix, with changes in absorbency intensity and the absence of peaks at given wave numbers. SEM images were taken to compare the surface topography of the compositions with and without the filler. The compositions with fillers showed the presence of a common spatial network. The functional properties of the obtained elastomer compositions were analyzed. Mechanical examinations demonstrated that the introduction of dust into the elastomer compositions contributed to improve the mechanical properties of the compositions. The conductivity of the elastomer structures increased with the addition of the filler but these changes were minor and allow the vulcanizates to remain classified as insulators. TGA/DSC demonstrated an increase in the thermal stability of the composites after the introduction of shot blasting dust into the elastomer structure. The decomposition temperature shifted toward higher values and an increase in glass transition temperature was observed for the filled compositions. The results of this study indicate that the use of shot blasting dust as a filler in NR improves the functional properties of the vulcanizates and could be competitive with more widely-used methods using fillers such as silica or chalk.
中文翻译:
抛丸粉尘作为弹性体复合材料的填料
本文的目的是确定在天然橡胶(NR)复合材料中使用喷砂粉尘作为填料的影响。每100克橡胶使用增加的填料含量,从0到30重量份。对灰尘的润湿特性的检查证实了其疏水性。该特性使得更容易将粉尘引入弹性体结构中,并更好地与混合物成分结合。FTIR光谱证实了弹性体基质中填料的存在,吸收强度的变化以及在给定波数下不存在峰。拍摄SEM图像以比较具有和不具有填料的组合物的表面形貌。具有填料的组合物显示出存在共同的空间网络。分析了获得的弹性体组合物的功能特性。机械检查表明,将灰尘引入弹性体组合物中有助于改善组合物的机械性能。弹性体结构的电导率随填料的添加而增加,但这些变化很小,可使硫化橡胶保持为绝缘体。TGA / DSC证明,在高弹体结构中引入喷砂粉尘后,复合材料的热稳定性有所提高。分解温度向更高的值移动,并且对于填充的组合物观察到玻璃化转变温度的升高。