Fabrication of novel resinous diamond composites with acrylonitrile butadiene styrene/polyvinyl chloride/dioctyl phthala
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Fabrication of novel resinous diamond composites with acrylonitrile butadiene styrene/polyvinyl chloride/dioctyl phthalate/diamond by hot pressing molding Fengjun Chen1
, Huochang Liang1, Shaohui Yin1,a), Shuai Huang2, Qingchun Tang3
1
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China; and College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China 2 State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China 3 College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China a) Address all correspondence to this author. e-mail: [email protected] Received: 27 August 2018; accepted: 14 February 2019
Uniform distribution of diamond grains is difficult to achieve using traditional fabrication of the micro grinding wheel. The design and performance of novel resinous diamond composites (RDCs) fabricated by hot pressing molding were studied to fabricate micro resinous diamond grinding wheels. The physical and mechanical properties of RDCs were analyzed by constructing and simulating five kinds of RDCs, including acrylonitrile butadiene styrene (ABS)/polyvinyl chloride (PVC)/dioctyl phthalate (DOP)/diamond materials with different mass ratios. Diamond grains presented good compatibility with the ABS–PVC–DOP copolymer, which resulted in improved mechanical properties of RDCs. RDC1–RDC5 samples were fabricated, and their hardness, surface roughness, and infrared spectra were analyzed. The optimal mass ratio of ABS/PVC/diamond/DOP for fabricating RDCs was 62.5/18.6/10.6/8.3. The results provide guidance in fabricating novel materials for resinous diamond grinding wheels with desirable performances for precision and ultraprecision machining.
Introduction The traditional fabrication of micro resinous diamond grinding wheels presents several challenges [1, 2], such as significant waste of material, forming difficulty, and uneven distribution of diamond grains. To solve these problems, a novel resinous diamond composite (RDC) was prepared by using hot pressing molding. Acrylonitrile butadiene styrene (ABS) and polyvinyl chloride (PVC) exhibit excellent comprehensive physical and mechanical properties for fabricating thermoplastic engineering plastic materials with high strength and good fluidity [3]. Mohamed et al. established the relationships between the process conditions of fused deposition modeling (FDM) and time-dependent mechanical properties of the materials using definitive screening design [4]. Sharma et al. found that a biocompatible FDM filament prepared using PVC can generate a porous structure that exhibits sufficient mechanical strength [5]. While butadiene is uniformly distributed throughout the acrylonitrile–styrene matrix in ABS, its aging resistance is
ª Materials Research Society 2019
poor [6]. The thermal decomposition of ABS directly affects the behavior of the polymer once exposed to flame, for example, ABS nitrile group starts to decrea
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