Effect of Polyurethane on High- and Low-Temperature Performance of Graphene Oxide-Modified Asphalt and Analysis of the Mechanism Based on Infrared Spectrum

Wu, Suxin; Xu, Wenyuan; Zhang, Fengfa; He, Weijun

doi:10.3390/coatings12050590

Cited by 10 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These ductility values suggest that the modified binders became brittle and stiffer and may have better low-temperature performance, which might lead to moisture damage and low temperature cracking resistance compared with HDPE-modified asphalt. Similar results were reported by Rosyidi et al and Wu et al [ 51 , 52 ].…”

Section: Resultssupporting

confidence: 92%

Effect of Vegetable Oil on the Properties of Asphalt Binder Modified with High Density Polyethylene

et al. 2023

View full text Add to dashboard Cite

Economic development results in increased traffic and higher traffic loads that often cause serious asphalt pavement problems, such as permanent deformation, fatigue cracking, and reduced lifetime. Polymers are seen as viable asphalt additives to minimize these problems. However, their incorporation reduces the workability of the material due to the increase in the viscosity of the blend. This study evaluates the effect of the addition of soybean oil on the physical, rheological, and thermal properties of high-density polyethylene (HDPE)-modified asphalt binder. The HDPE was kept at 5 wt.% and the soybean oil the asphalt was varied from 1 to 7 wt.%. A series of tests was conducted to evaluate the binders, comprising conventional tests (penetration, softening point, and ductility) rheological performance tests (dynamic viscosity and short-term aging (RTFO), and thermogravimetric analysis (TGA). The addition of HDPE reduced the penetration and increased the softening point and viscosity. The oil reduced steadily the viscosity, improved the workability and the thermal susceptibility of the modified asphalt up to 3 wt.% of oil, and reduced about 92% mass gain after aging. Hence, the oil is considered a good modifier agent for the improvement of polymer-modified asphalt’s workability under service conditions.

show abstract

Section: Resultssupporting

confidence: 92%

Effect of Vegetable Oil on the Properties of Asphalt Binder Modified with High Density Polyethylene

et al. 2023

View full text Add to dashboard Cite

show abstract

“…3a, compared with gauze, the peak of Hb-Gauze at 1727 cm −1 changed slightly, which was attributed to the vibration of O-C]O connected to Si groups. 46 Meanwhile, the stretching vibration peak at 799 cm −1 arose from Si-C, which also indicated TMSPMA had been modied on cotton gauze. 47 The full spectra of XPS for gauze and Hb-Gauze are shown in Fig.…”

Section: Resultsmentioning

confidence: 97%

A Janus membrane doped with carbon nanotubes for wet–thermal management

Tian¹,

Hu²,

Yang³

et al. 2023

Nanoscale Adv.

View full text Add to dashboard Cite

show abstract

“…According to Figure 2 , for the NaHCO 3 curve, the absorption peak at 3311 cm −1 is the stretching vibration of hydroxyl O–H, and the absorption peak at 3000–2800 cm −1 corresponds to the stretching vibration of alkyl C–H. The absorption peaks at 2267 cm −1 and 1717 cm −1 are attributed to the antisymmetric stretching vibration of isocyanate N=C=O and the stretching vibration of isocyanate C=O [ 26 ]. Additionally, the absorption peaks at 1596, 1529, and 1412 cm −1 are related to the skeleton vibration of the benzene ring, and the absorption peak at 1456 cm −1 is the variable angle vibration of methylene.…”

Section: Resultsmentioning

confidence: 99%

Effect of Secondary Foaming on the Structural Properties of Polyurethane Polishing Pad

Chen,

Jiang,

Zhu

et al. 2024

Materials

View full text Add to dashboard Cite

Polyurethane polishing pads are important in chemical mechanical polishing (CMP). Thus, understanding how to decrease the density but increase the porosity is a crucial aspect of improving the efficiency of a polyurethane polishing pad. According to the principle of gas generation by thermal decomposition of sodium bicarbonate and ammonium bicarbonate, polyurethane polishing pad was prepared by a secondary foaming method. The influence of adding such an inorganic foaming agent as an auxiliary foaming agent on the structure, physical properties, and mechanical properties of polyurethane polishing pads was discussed. The results showed that compared with the polyurethane polishing pad without an inorganic foaming agent, the open-pore structure increased, the density decreased, and the porosity and water absorption increased significantly. The highest porosity and material removal rate (MRR) with sodium bicarbonate added was 3.3% higher than those without sodium bicarbonate and 33.8% higher than those without sodium bicarbonate. In addition, the highest porosity and MRR with ammonium bicarbonate were 7.2% higher and 47.8% higher than those without ammonium bicarbonate. Therefore, it was finally concluded that the optimum amount of sodium bicarbonate to be added was 3 wt%, and the optimum amount of ammonium bicarbonate to be added was 1 wt%.

show abstract

Effect of Polyurethane on High- and Low-Temperature Performance of Graphene Oxide-Modified Asphalt and Analysis of the Mechanism Based on Infrared Spectrum

Cited by 10 publications

References 19 publications

Effect of Vegetable Oil on the Properties of Asphalt Binder Modified with High Density Polyethylene

Effect of Vegetable Oil on the Properties of Asphalt Binder Modified with High Density Polyethylene

A Janus membrane doped with carbon nanotubes for wet–thermal management

Effect of Secondary Foaming on the Structural Properties of Polyurethane Polishing Pad

Contact Info

Product

Resources

About