Effect of silane coupling agent and air plasma treatment on interfacial shear strength of carbon fiber/polyphenylene sulfide composites

The paper adopts modified carbon fiber with Meldrum's acid and silane coupling agent (KH-550), then add the modified carbon fiber to the paper based friction materials. The paper aims to explore the changes of modified carbon fiber in its surface structure and properties by electron microscopy and infrared spectral analysis, and the effect of anionic microparticle forming retention aid system comprised of lithium soapstone-cationic polyacrylamide (CPAM) on mechanical properties and retention of paper based friction materials. Compared with the addition of unmodified carbon fiber to paper based friction materials, the addition of modified carbon fiber with Meldrum's acid, silane coupling agent, Meldrum's acid and silane coupling agent enhance the tensile strength of paper based friction materials. The tensile index of paper based friction materials was separately enhanced by 64.87 %, 91.38 % and 28.88 %. Compared with the paper based friction materials without the anionic microparticle forming retention aid system, the basis weight of paper based friction materials increased by 13.97 %.

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Effect of Ultrasonic Vibration on Adhesive Bonding of CFRP/Al Alloy Joints Grafted with Silane Coupling Agent

Polymers ◽

10.3390/polym12040947 ◽

2020 ◽

Vol 12 (4) ◽

pp. 947 ◽

Cited By ~ 1

Author(s):

Min Wu ◽

Xuetong Tong ◽

Hui Wang ◽

Lin Hua ◽

Yizhe Chen

Keyword(s):

Shear Strength ◽

Chemical Bond ◽

Ultrasonic Vibration ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Adhesive Bonding ◽

Adhesive Layer ◽

Al Alloy ◽

Silane Coupling ◽

The Impact

Adhesive bonding is widely used in the joining of metals and carbon fiber-reinforced plastics (CFRPs). Ultrasonic vibration was used to improve adhesive bonding of CFRP/Al alloy joints grafted with silane coupling agent, and the effect of the ultrasound on the bonding was studied. The surface of Al alloy was treated with a silane coupling agent, and then the ultrasonic vibration was applied on the adherend during the adhesive bonding process. The shear strength was tested, and the mechanism was analyzed by scanning electron microscope (SEM) and Fourier transform infrared spectrometer (FTIR). It is found that the ultrasonic assisting can further promote the bonding of the Al alloy and the adhesive. For the test joins, the shear strength was increased by 267.50% using the silanization treatment plus the ultrasonic assisting. The ultrasonic assisting promoted the grafted epoxy group to react with the adhesive more sufficiently at the Al/adhesive interface by causing micro-mixing and intensified molecule collision, and thus more chemical bond was formed. Under the ultrasonic action, the interface and the adhesive layer became tighter owing to the impact contact at the interface and the oscillating flow in the adhesive layer. The ultrasonic vibration assisting increased the bonding strength by promoting the chemical bond and improving physical morphology.

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Improvement of atomic oxygen erosion resistance of carbon fiber and carbon fiber/epoxy composite interface with a silane coupling agent

Materials & Design ◽

10.1016/j.matdes.2016.07.004 ◽

2016 ◽

Vol 109 ◽

pp. 171-178 ◽

Cited By ~ 30

Author(s):

Nan Zheng ◽

Jinmei He ◽

Dan Zhao ◽

Yudong Huang ◽

Jiefeng Gao ◽

...

Keyword(s):

Carbon Fiber ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Atomic Oxygen ◽

Erosion Resistance ◽

Epoxy Composite ◽

Composite Interface ◽

Silane Coupling ◽

Carbon Fiber Epoxy ◽

Atomic Oxygen Erosion

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The Influence of Silane Coupling Agent on Glued Spruce Wood Using Epoxy Adhesive

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.897.99 ◽

2014 ◽

Vol 897 ◽

pp. 99-102

Author(s):

Jan Vanerek ◽

Anna Benešová ◽

Petr Klímek

Keyword(s):

Shear Strength ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Strength Properties ◽

Epoxy Adhesive ◽

Tensile Shear Strength ◽

Tensile Shear ◽

Main Criterion ◽

Spruce Wood ◽

Silane Coupling

The paper deals with the evaluation of epoxy adhesive modification by silane coupling agent used for gluing process of spruce wood. Moreover, the usage of primer containing the silane coupling agent was performed to find out, whether better compatibility between spruce wood and epoxy adhesive at the interface bondline can ensure sufficient resistance to delamination process. As the main criterion, tensile shear strength properties of glued specimens in different thermal and moisture exposures were carried out.

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