Effect of particle type and its surface characteristics on the mechanical properties of particle‐filled polymer composite for precision machine tools

Abstract

For excellent damping properties, polymer composite (PC) has drawn particular attention in the field of modern ultra‐precision machining (UPM). However, applications of PC are restricted due to its inferior mechanical strength. In this paper, different granite coarse aggregate, different fine aggregate, and different filler were added into PC to increase its mechanical strength. The effects of coarse aggregate type, fine aggregate type, filler type on the mechanical strength of particle‐filled polymer composite (PFPC) were investigated systematically. Experimental results show that the best mechanical strength was obtained when the coarse aggregate type is Jinan clay granite, the fine aggregate is Jinan clay granite, and the filler is fly ash (FA). Results also show that the compressive strength of PFPC was closely correlated with the compressive strength of aggregate rock, and the compressive strength of PFPC increases with the increasing compressive strength of the aggregate rock. In order to further improve the mechanical strength of PFPC, the aggregate was subsequently treated by ultrasonication, direct mixing silanization, nebulizing silanization, macerating silanization. And four types of PFPC were obtained, that is, U‐PFPC, D‐PFPC, N‐PFPC, M‐PFPC, respectively. Among these four types of PFPC, the M‐PFPC exhibited the best mechanical strength. And the compressive strength and flexural strength of M‐PFPC are 146.97 MPa and 37.33 MPa, respectively; increased by 8.31% and 13.53% compared with PFPC produced by standard pouring technologies. In addition, the mechanism of the influence of the aggregate whose surfaces were treated on the mechanical strength of PFPC was revealed by scanning electron microscopy and contact angle test. The test results show that the M‐PFPC exhibited the favorable interface bond. This study was of great significance to increase the mechanical properties of PC and improve its application in precision machine tools.

Controlling the mechanoadaptive properties of hydrogenated nitrile rubber by the incorporation of cementious based industrial waste for downhole application

“…The filler being a ceramic, has a lot of pores on its surface, and HNBR gets physisorbed on the porous surface of the filler as well as gets chemisorbed enhancing the interactions owing to enhanced properties. [ 49 ] The creases are due to cryofractures, and no peel out is observed. The b, d, and f images, which depict the hydrated composites, show a corona type of the coating over each particle, which may be attributed due to the hydrated calcium silicate which grows over the CS particles (EDAX data in Table S1, Supplimentary Information).…”

Experimental characterization of polydisperse particle‐loaded flow for linear resin transfer molding injections

“…Remarkable features of this process are the possibility of producing composite parts of complex shapes with high quality and strength, along with a strong dimensional stability, in addition to its potential of introducing inserts. [1] For some RTM applications, particles are added to provide functional properties to the finished part, [2,3] such as electrical [4,5] and thermal conductivity, [6][7][8][9] flame retardancy, [8,[10][11][12] self-healing properties, [13] enhancement of mechanical properties, [14][15][16][17] and weight saving. [18][19][20] Recent developments [13,21] have introduced several methods for particle addition to composite materials such as the deposition of inclusions on the preform surface or the addition of particles to the liquid resin.…”

Polypropylene oxide/polyethylene oxide‐cellulose hybrid nanocomposite hydrogels as drug delivery vehicle

“…Hydrogels as biomaterials and their utilization in different biomedical field as various cell and drug delivery vehicles, implants, and so on has been the subject of extensive study over the past decade. [1][2][3][4] Among these, the hydrogels that are formed by in situ polymerization technique have gained popularity as carriers and injectable scaffolds in tissue engineering because of their minimalistic invasive nature of injection and relatively simpler applications. 5,6 A number of hydrophilic polymers have been utilized as primary constituents of hydrogels, some of them being poly (methacrylic acid), 7 poly (N-isopropylacrylamide), 8 poly (acrylamide), 9 poly (ethylene oxide), 10 and poly (2-hydroxyethylmethacrylate).…”

“…Hydrogels as biomaterials and their utilization in different biomedical field as various cell and drug delivery vehicles, implants, and so on has been the subject of extensive study over the past decade 1–4 . Among these, the hydrogels that are formed by in situ polymerization technique have gained popularity as carriers and injectable scaffolds in tissue engineering because of their minimalistic invasive nature of injection and relatively simpler applications 5,6 .…”