Preparation and curing behaviour of microencapsulated curing agents for cold-mixed epoxy asphalt
This study aimed to improve control over the curing behaviour of cold-mixed epoxy asphalt by using a microencapsulated curing agent (2-PZPC). Prepared through solvent evaporation, the 2-PZ@PC microcapsules had 2-phenylimidazole as the core material and polycarbonate as the shell material. The research examined the impact of core-shell mass ratio on microcapsule morphology and composition. Various equations, including the kinetics equation, Kissinger equation, Flynn-Wall-Ozawa, and Crane equations, were employed to assess the sustained release effect of 2-PZ@PC microcapsules on epoxy resin curing behaviour. Fluorescence microscopy and viscosity experiments were used to observe the release state of microcapsules and confirm the retardation phenomenon during construction. Optimal 2-PZ@PC microcapsules displayed a smooth spherical morphology and a maximum encapsulation rate of 32 wt% at a 1:1 core-shell ratio. The microencapsulated curing agent effectively regulated cold-mixed epoxy asphalt's curing behaviour, enhancing retention time control and application reliability.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:40 |
|---|---|
| Enthalten in: |
Journal of microencapsulation - 40(2023), 6 vom: 16. Sept., Seite 412-422 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Xiong, Qiaoliang [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
8052-42-4 |
|---|
| Anmerkungen: |
Date Completed 15.08.2023 Date Revised 15.08.2023 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1080/02652048.2023.2215316 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM356949141 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM356949141 | ||
| 003 | DE-627 | ||
| 005 | 20231226071535.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1080/02652048.2023.2215316 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1189.xml |
| 035 | |a (DE-627)NLM356949141 | ||
| 035 | |a (NLM)37192283 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Xiong, Qiaoliang |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Preparation and curing behaviour of microencapsulated curing agents for cold-mixed epoxy asphalt |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 15.08.2023 | ||
| 500 | |a Date Revised 15.08.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a This study aimed to improve control over the curing behaviour of cold-mixed epoxy asphalt by using a microencapsulated curing agent (2-PZPC). Prepared through solvent evaporation, the 2-PZ@PC microcapsules had 2-phenylimidazole as the core material and polycarbonate as the shell material. The research examined the impact of core-shell mass ratio on microcapsule morphology and composition. Various equations, including the kinetics equation, Kissinger equation, Flynn-Wall-Ozawa, and Crane equations, were employed to assess the sustained release effect of 2-PZ@PC microcapsules on epoxy resin curing behaviour. Fluorescence microscopy and viscosity experiments were used to observe the release state of microcapsules and confirm the retardation phenomenon during construction. Optimal 2-PZ@PC microcapsules displayed a smooth spherical morphology and a maximum encapsulation rate of 32 wt% at a 1:1 core-shell ratio. The microencapsulated curing agent effectively regulated cold-mixed epoxy asphalt's curing behaviour, enhancing retention time control and application reliability | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Microcapsules | |
| 650 | 4 | |a cold-mixed epoxy asphalt | |
| 650 | 4 | |a curing agent | |
| 650 | 4 | |a curing behaviour | |
| 650 | 4 | |a kinetics | |
| 650 | 7 | |a asphalt |2 NLM | |
| 650 | 7 | |a 8052-42-4 |2 NLM | |
| 650 | 7 | |a Capsules |2 NLM | |
| 650 | 7 | |a Epoxy Resins |2 NLM | |
| 650 | 7 | |a Hydrocarbons |2 NLM | |
| 700 | 1 | |a Du, Juntao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Minxin |e verfasserin |4 aut | |
| 700 | 1 | |a Jia, Huina |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Tianjin |e verfasserin |4 aut | |
| 700 | 1 | |a Nie, Yi |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of microencapsulation |d 1989 |g 40(2023), 6 vom: 16. Sept., Seite 412-422 |w (DE-627)NLM013098217 |x 1464-5246 |7 nnns |
| 773 | 1 | 8 | |g volume:40 |g year:2023 |g number:6 |g day:16 |g month:09 |g pages:412-422 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1080/02652048.2023.2215316 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 40 |j 2023 |e 6 |b 16 |c 09 |h 412-422 | ||