Effect of isotactic polypropylene on crystal structure and morphology of β-modified random copolymerized polypropylene

Effects of epoxy resin on the high‐temperature performance of desulfurized rubber modified asphalt

“…The changes in the complex shear modulus G *, phase angle δ , and rutting coefficient G */sin δ of EP‐DRMA after the addition of 3% PC are shown in Figure 9. It can be observed that the overall similarity with the above conclusion, G * and G */sin δ decreased gradually with the increase of temperature, but because of the influence of organic Fischer‐Tropic wax and phenyl glycidyl ether on the asphalt component and epoxy resin material, G * and G */sin δ have a significant increase, and the high‐temperature performance is further enhanced 35–37 …”

“…It can be observed that the overall similarity with the above conclusion, G* and G*/sinδ decreased gradually with the increase of temperature, but because of the influence of organic Fischer-Tropic wax and phenyl glycidyl ether on the asphalt component and epoxy resin material, G* and G*/sinδ have a significant increase, and the high-temperature performance is further enhanced. [35][36][37] In conclusion, EP can successfully and significantly raise the G* and G*/sinδ of modified asphalt, bringing excellent high-temperature performance to EP-DRMA. This has greatly expanded the application range of EP-DRMA in asphalt roads and successfully improved the application pain point of poor high-temperature performance of DRMA.…”

Reutilization of crystalline waste plastics for modified asphalt using twin‐screw extrusion: Polyethylene and polypropylene as typical subjects

“…The α ‐crystals were first to generate, and then β ‐crystals induced to generate. The β ‐crystals had high impact strength, heat deflection temperature, and fracture strength 37–39 . Thus, the β ‐crystals improved the performances of modified asphalts.…”

“…The β-crystals had high impact strength, heat deflection temperature, and fracture strength. [37][38][39] Thus, the β-crystals improved the performances of modified asphalts.…”

An efficient β-nucleating agent with high lattice matching rate for plate-like crystallization of polypropylene random copolymer

“…They found stereoregular molecular chains in PPH benefit the formation of primary β-nuclei at the early stage of crystallization and ultimately improve β-crystallization. Li et al 40 and Jiang et al 41 utilized similar methods to introduce an appropriate amount of PPH into PPR, which significantly improved the β-crystallization effect of PPR and the toughness of the material. In recent studies, we have found an efficient β-NA WBN-28 for PPR.…”