PMID- 32559371 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200716 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 12 IP - 28 DP - 2020 Jul 15 TI - Robust Hybrid Hydrophilic Coating on a High-Density Polyethylene Surface with Enhanced Mechanical Property. PG - 32017-32022 LID - 10.1021/acsami.0c09116 [doi] AB - Acoustic aeration on a sonochemical surface could have a major impact on sensitivity because of the serious reflection/scattering of sound waves. Recently, we found that the trapped air in the crevices can be reduced by covering the surface with a hydrophilic coating, thus preventing the bubble formation upon ultrasound agitation. Here, we developed an epoxy-based hybrid polymer coating that shows greatly enhanced mechanical adhesion on a high-density polyethylene (HDPE) surface. The strong bonding of C-O-C and the benzene ring as the backbone ensures excellent mechanical strength, and the hydrophilic polar groups of -OH/-NH(2) on dopamine display bubble suppression. The existing -OH groups in the cross-linked matrix, which is constructed by adding the monomer PEGMA and cross-linker PEGDA, form a strong chemical bond with the HDPE surface via dehydration, which largely enhanced the adhesion force. The coated HDPE surface maintained a low contact angle of less than 45 degrees , which is the critical angle for avoiding bubbles, after a long period period of abrasion cycling of 160 times under 9.8 kPa pressure. The coated HDPE surface displayed excellent bubble removal performance under ultrasound agitation from room temperature to 60 degrees C. The strengthened mechanical adhesion of the epoxy-based hydrophilic coating displays extensive applications on a variety of surfaces for acoustic bubble removal. FAU - Klimchuk, Stanislav AU - Klimchuk S AD - Department of Materials Science and Engineering, CEAS, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States. FAU - Shang, Mingwei AU - Shang M AD - Department of Materials Science and Engineering, CEAS, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States. FAU - Samuel, Melvin S AU - Samuel MS AD - Department of Materials Science and Engineering, CEAS, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States. FAU - Niu, Junjie AU - Niu J AUID- ORCID: 0000-0003-0093-7357 AD - Department of Materials Science and Engineering, CEAS, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States. LA - eng PT - Journal Article DEP - 20200702 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 SB - IM OTO - NOTNLM OT - HDPE OT - acoustic bubbles OT - hydrophilic coating OT - mechanical adhesion OT - sonochemistry EDAT- 2020/06/20 06:00 MHDA- 2020/06/20 06:01 CRDT- 2020/06/20 06:00 PHST- 2020/06/20 06:00 [pubmed] PHST- 2020/06/20 06:01 [medline] PHST- 2020/06/20 06:00 [entrez] AID - 10.1021/acsami.0c09116 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2020 Jul 15;12(28):32017-32022. doi: 10.1021/acsami.0c09116. Epub 2020 Jul 2.