Effect of Silica on Pyrene-Contaminated Soil Subjected to Mechanochemical Remediation

Chen, Yu; Han, Han; Yin, Mengqiuzi; Wang, Xiao; He, Xiao-Song; Zhang, Qiwu

doi:10.1021/acs.iecr.1c03292

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…The main preparation process of MPA‐modified BPR composites (MPABPR) is shown in Figure 1A. The MPA and BPR were mixed and dissolved in absolute ethanol according to the formula in Table S1, and then poured into the ball mill tank for 2 h at 300 rpm 31 . After that, the solvent removed the composite into a mold for curing, and the samples (ϕ30 × 10 mm) were obtained for the following test.…”

Section: Methodsmentioning

confidence: 99%

“…The MPA and BPR were mixed and dissolved in absolute ethanol according to the formula in Table S1, and then poured into the ball mill tank for 2 h at 300 rpm. 31 After that, the solvent removed the composite into a mold for curing, and the samples (ϕ30 Â 10 mm) were obtained for the following test. The BPR composites with different contents of MPA (0, 2.5, 5, and 10 wt%) were named BPR, MPABPR 2.5 , MPABPR 5 , and MPABPR 10 , respectively.…”

Section: Fabrication Of Bpr Composite Modified By Mpamentioning

confidence: 99%

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Enhancing ablation and oxidation resistance of phenolic resin with modified pickling asbestos

Shi,

Li,

Zhang

et al. 2023

Polymer Composites

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Given the increasing requirements for ablative thermal protection materials, there is an urgent need for boron phenolic resin (BPR) composites with excellent high‐temperature strength properties as well as ablation performance to address the structural failure during the ablation process of these devices. Herein, modified pickling asbestos (MPA) was successfully incorporated into BPR to prepare MPA‐modified BPR (MPABPR). In addition, one‐dimensional MPA with improved dispersion and compatibility was used to fabricate a fiber‐reinforced network inside of BPR for the first time, which effectively increased the high‐temperature strength and ablation resistance of BPR. The results demonstrated that the high‐temperature strength of MPABPR was optimally improved by 25% compared to pure BPR. Meanwhile, when the content of MPA was only 5 wt%, the linear and mass ablation rates of MPABPR could reduce to 0.046 mm/s and 0.043 g/s, which were 34.3% and 23.2% lower than that of pure BPR, respectively. This study has the enormous potential to provide a new strategy for preparing high‐performance BPR matrix materials.Highlights The dispersion and compatibility of PA are improved by modification. MPA constructs a fiber‐reinforced network that can strengthen the carbon layer. The ablative properties of MPABPR have great advantages over the BPR. The compressive strength of carbonized MPABPR5 is 25% higher than that of BPR.

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Section: Methodsmentioning

confidence: 99%

Section: Fabrication Of Bpr Composite Modified By Mpamentioning

confidence: 99%