Modification of epoxy by a liquid elastomer and solid rubber particles

Kaynak, Cevdet
This work covers studies on epoxy resin systems modified with two different rubber phases. The first modification was the use of recycled car tire rubber particles; while in the second one a silicon based liquid elastomer (Tegomer) was mixed with the epoxy resin matrix. In the third method epoxy resin was modified with both solid rubber particles and liquid elastomer together.


Interface studies between epoxy and recycled rubber
Sipahi-Saglam, E; Kaynak, Cevdet; Akovali, G (2000-07-19)
This work covers studies on interfaces between epoxy and recycled rubber used as toughening phase in epoxy resins. Different surface modification techniques were used to improve the compatibility at the interface between the rubber particles and the epoxy matrix. Silane coupling agents, plasma surface modification and acrylic acid/benzoylperoxide were used to enhance the surface properties of rubber particles. Rubber parts of grinded scrap car tyres with a size range of 355-500 mum after surface treatment w...
Effects of RTM mold temperature and vacuum on the mechanical properties of epoxy/glass fiber composite plates
Kaynak, Cevdet; Isitman, Nihat Ali (2008-08-01)
The purpose of this study is to investigate the effects of mold temperature, application of vacuum at resin exit ports, and initial resin temperature on the mechanical properties of epoxy matrix woven glass fiber reinforced composite specimens produced by resin transfer molding (RTM). For this purpose, six mold temperatures (25, 40, 60, 80, 100, and 120 degrees C), two initial resin temperatures (15 and 28 degrees C), and vacuum (0.03 bar) and without vacuum (similar to 1 bar) conditions are utilized. Speci...
Effects of liquid rubber modification on the behaviour of epoxy resin
Öztürk, Abdullah; Kaynak, Cevdet (2001-12-01)
The aim of this study was to investigate the behaviour of brittle epoxy resin when modified by liquid rubber for toughening purposes. The changes in mechanical and thermal properties of diglycidyl ether of bisphenol-A based epoxy resin with hydroxyl terminated polybutadiene (HTPB) (1% and 1.5%) have been studied. A silane coupling agent (SCA) was also utilized to improve the compatibility of HTPB and epoxy matrix. Four groups of specimens were prepared by using different orders of mixing of HTPB with SCA an...
Water dispersed epoxy resin for surface coatings
Şen, Evrim; Gündüz, Güngör; Aras, Leyla; Department of Chemical Engineering (2003)
In this research water dispersed epoxy varnishes were produced by reacting solid epoxy resin with ethylene diamine (EDA) and maleinized fatty acids of linseed oil. Maleinized fatty acid (MFA) was produced by the maleinization process, in which, fatty acid and maleic anhydride were reacted under nitrogen atmosphere. Maleinization was performed in order to insert hydrophilic groups to the fatty acid chains, which were then inserted to the backbone of the epoxy resin. This was done to give water dispersibility...
Reinforcement of epoxies by boron minerals
Babuçcuoğlu, Yurdaer; Tinçer, Teoman; Özdemir, Tonguç; Department of Polymer Science and Technology (2015)
As polymers/fillers have shown much improved mechanical and thermal properties, the subject of epoxy resin reinforcement using boron minerals fillers has become valuable subject to study. The aim of this study is how boron minerals influence epoxy resins’ mechanical and thermal properties under gamma irradiation. The effects of boron on the mechanical and thermal properties of epoxy were studied in terms of mineral type, mineral loading concentration and irradiation dose in air and under vacuum. Bisphenol-A...
Citation Formats
C. ÇELİKBİLEK, G. AKOVALI, and C. Kaynak, “Modification of epoxy by a liquid elastomer and solid rubber particles,” POLYMER BULLETIN, pp. 429–435, 2004, Accessed: 00, 2020. [Online]. Available: