2023
DOI: 10.1021/acsapm.2c01703
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Enhanced Adhesion of Bioinspired Microadhesives Based on Silicone Elastomers with Designed Macromolecular Structures

Abstract: We have synthesized four kinds of well-designed polysiloxane elastomers with different macromolecular structures and focused on the effect of chemical structure on the macroadhesion performance of the fabricated microfibrillar adhesives. After confirming the chemical and physical structures, as well as the mechanical properties, the chemical structure is the only obvious distinction among the four microfibrillar adhesives. The results of macroadhesion evaluation indicated that four microfibrillar adhesives exh… Show more

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Cited by 2 publications
(4 citation statements)
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“…[6][7][8] With the adhesion characteristics of gecko bristles revealed by many scientists, a series of adhesion materials inspired by the structure of gecko bristles have also been developed, mainly including polymer arrays and vertically aligned carbon nanotubes (VACNT) arrays. [9][10][11][12] VACNT arrays not only have the advantages of high adhesion strength, no damage to contact surface, and low requirements for use environment, but also have higher elastic modulus, higher thermal conductivity and thermal stability, and good electrical and electrochemical properties, so they have a wide application prospect in electronic devices, wall climbing robots, aerospace and other elds. [12][13][14] Although a lot of research has been carried out on the adhesion mechanism of gecko bristles, the research on adhesion materials is still limited to the design of geometric structures and the optimization of preparation process, and its adhesion mechanism is still unclear, and in particular the inuence of terminal molecular composition on its adhesion is rarely studied.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…[6][7][8] With the adhesion characteristics of gecko bristles revealed by many scientists, a series of adhesion materials inspired by the structure of gecko bristles have also been developed, mainly including polymer arrays and vertically aligned carbon nanotubes (VACNT) arrays. [9][10][11][12] VACNT arrays not only have the advantages of high adhesion strength, no damage to contact surface, and low requirements for use environment, but also have higher elastic modulus, higher thermal conductivity and thermal stability, and good electrical and electrochemical properties, so they have a wide application prospect in electronic devices, wall climbing robots, aerospace and other elds. [12][13][14] Although a lot of research has been carried out on the adhesion mechanism of gecko bristles, the research on adhesion materials is still limited to the design of geometric structures and the optimization of preparation process, and its adhesion mechanism is still unclear, and in particular the inuence of terminal molecular composition on its adhesion is rarely studied.…”
Section: Introductionmentioning
confidence: 99%
“…6–8 With the adhesion characteristics of gecko bristles revealed by many scientists, a series of adhesion materials inspired by the structure of gecko bristles have also been developed, mainly including polymer arrays and vertically aligned carbon nanotubes (VACNT) arrays. 9–12 VACNT arrays not only have the advantages of high adhesion strength, no damage to contact surface, and low requirements for use environment, but also have higher elastic modulus, higher thermal conductivity and thermal stability, and good electrical and electrochemical properties, so they have a wide application prospect in electronic devices, wall climbing robots, aerospace and other fields. 12–14…”
Section: Introductionmentioning
confidence: 99%
“…According to the performance study, the chemical structures were closely relevant to the adhesion strength. 23 Among polysiloxane with various chemical structures, a phenylcontaining polymer matrix has made a great contribution to the macroadhesion performance, while the mechanism needs to be further investigated. In view of the abovementioned results, chemical structure design is expected to further improve the adhesion properties of microadhesives on the basis of physical structure design.…”
Section: ■ Introductionmentioning
confidence: 99%
“…In our previous work, polysiloxane with different substituted groups was synthesized and used to fabricate microadhesives. According to the performance study, the chemical structures were closely relevant to the adhesion strength . Among polysiloxane with various chemical structures, a phenyl-containing polymer matrix has made a great contribution to the macroadhesion performance, while the mechanism needs to be further investigated.…”
Section: Introductionmentioning
confidence: 99%