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250508s2025 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.4c04830
|2 doi
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|a eng
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| 100 |
1 |
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|a Xu, Zhaoran
|e verfasserin
|4 aut
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|a Biphasic Aromatic Amine-Cured Polybutadiene Polyurethane-Ureas for Simultaneous Bonding of Materials with Different Polarities
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|c 2025
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|a Text
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|a ƒaComputermedien
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|a Date Revised 18.03.2025
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this study, aromatic amine curing agents (A-HD, A-NPG, and A-DCP) were synthesized through the Michael addition of 3-aminobenzylamine with 1,6-hexanediol diacrylate, neopentyl glycol diacrylate, and octahydro-1H-4,7-methanoindene-1,5-diyldimethanediyl bisprop-2-enoate, respectively. The incorporation of these aromatic amine curing agents into low-polarity polybutadiene polyurethane-ureas balanced the polar and dispersion components of surface energy, enhancing the simultaneous bonding performance with materials of different polarities. Atomic force microscopy revealed that the prepared polybutadiene polyurethane-ureas exhibited a significant microphase separation between the soft and hard segments. The polybutadiene soft segments facilitated bonding to low-polarity materials, while the isocyanate and aromatic amine hard segments enabled effective adhesion to polar materials. Moreover, the viscosity and pot life of the polyurethane-urea mixture can be controlled through the modulation of intermediate structures of aromatic amine curing agents. The polyurethane-urea sample PU-DCP achieved the highest shear bonding strength of 4.36 MPa between steel sheets (a polar material) and styrene-butadiene rubber (a low-polarity material). This strength was 39% and 53% higher than those of polybutadiene polyurethane-ureas cured with the commonly used curing agents 4,4'-methylene bis(2-chloroaniline) (MOCA) and dimethyl thio-toluene diamine (E300). This paper presents a method to achieve effective bonding between low-polarity and polar materials through the modulation of the phase-separated structure in polyurethanes
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|a Journal Article
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1 |
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|a Shen, Peipei
|e verfasserin
|4 aut
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1 |
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|a Wang, Kangna
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Shiyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Yecheng
|e verfasserin
|4 aut
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|a Quan, Yiwu
|e verfasserin
|4 aut
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| 700 |
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|a Guo, Xuewen
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 41(2025), 10 vom: 18. März, Seite 6710-6717
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:41
|g year:2025
|g number:10
|g day:18
|g month:03
|g pages:6710-6717
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|u http://dx.doi.org/10.1021/acs.langmuir.4c04830
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