Studies on Mechanical and Thermal Properties of Epoxy Resin Modified by Fluorine-Containing Silicone

2013 ◽  
Vol 401-403 ◽  
pp. 713-716
Author(s):  
Cheng Fang ◽  
Dong Bo Guan ◽  
Wei Guo Yao ◽  
Shou Jun Wang ◽  
Hui An
Keyword(s):  
Glass Transition ◽  
Thermal Properties ◽  
Epoxy Resin ◽  
Bending Strength ◽  
Mechanical And Thermal Properties ◽  
Curing Agent ◽  
Epoxy System ◽  
Resin Curing ◽  
The Impact ◽  
Modified Epoxy

The epoxy resin was modified with the mixture of α,ω-dihydroxy poly-(3,3,3-trifluoropropyl) siloxane (PTFPMS), KH560 and stannous octoate. KH560 can react with PTFPMS and also epoxy resin curing agent. The two reactions were characterized by FI-IR. The modified epoxy resin was characterized by FI-IR. The result showed that fluorine-containing silicone had been successfully introduced into the epoxy system. The mechanical and thermal properties of the modified epoxy resin were analyzed. The results showed that with the increase of PTFPMS the impact strength of epoxy resin increased, hardness and bending strength correspondingly reduced, slight decrease in the glass transition temperature.

Influence Factors Study on the Properties of Epoxy Resin Modified by Polyurethane

2012 ◽  
Vol 472-475 ◽  
pp. 1937-1940
Author(s):  
Dong Yan Ren ◽  
Xiao Hong Li ◽  
Zhi Hua Li
Keyword(s):  
Tensile Strength ◽  
Thermal Properties ◽  
Impact Strength ◽  
Epoxy Resin ◽  
Influence Factors ◽  
Mechanical And Thermal Properties ◽  
Thermal Properties Of Materials ◽  
Properties Of Materials ◽  
The Impact ◽  
Modified Epoxy

Polyurethane-modified epoxy resin was prepared with Polyurethane prepolymer(PUP). The effects of the PUP content and epoxy resin type on mechanical and thermal properties of materials were discussed. The results indicate that the tensile strength and impact strength of the material increase to maximum successively, and then decrease with the increasing addition of PUP. When the mass fraction of PUP was 15%, the tensile strength and the impact strength of materials were all the best. There were significant differences in mechanical and thermal properties of material for different epoxy, and the best results were cured epoxy TDE-85.

Evaluation of mechanical and thermal properties of modified epoxy resin by using acacia catechu particles

2019 ◽  
Vol 225 ◽  
pp. 239-246 ◽  
Author(s):  
Ahmer Hussain Shah ◽  
Xiao Li ◽  
Xiaodong Xu ◽  
Abdul Qadeer Dayo ◽  
Wen-bin Liu ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Mechanical And Thermal Properties ◽  
Acacia Catechu ◽  
Modified Epoxy

Mechanical and Thermal Properties of Siloxane Reinforced Biphenyldiol Formaldehyde Resin Curing Epoxy Resin Composites

2014 ◽  
Vol 936 ◽  
pp. 3-7
Author(s):  
Shi Hui Chen ◽  
Jun Gang Gao ◽  
Hong Zhe Han ◽  
Chao Wang
Keyword(s):  
Epoxy Resin ◽  
Impact Resistance ◽  
Resin Matrix ◽  
Formaldehyde Resin ◽  
Mechanical And Thermal Properties ◽  
Reinforced Composites ◽  
Interfacial Bonding Strength ◽  
Resin Curing ◽  
Degradation Properties ◽  
The Impact

In order to modify the properties of the epoxy composites, an alkali catalyzed biphenyldiol formaldehyde resin (BPFR) was synthesized and used to cure epoxy resin (ER). γ-Glycidoxypropyl trimethoxysilane (KH-560) was used as a reinforcer of the composites. Laminates of the BPFR/ER fiberglass reinforced composites with different (KH-560) contents were prepared. The influence of the KH-560 content on the glass transition temperature (Tg) and thermal degradation properties of the composites was researched by dynamic mechanical analyzer (DMA) and thermogravimetric analysis (TG). The mechanical, electrical properties of the composites were determined. The results showed that the interfacial bonding strength between resin matrix and fiberglass can be efficiently improved with the presence of KH-560. When the ratio of BPFR and ER is 3 : 7, the content of KH-560 is 5 ~7 wt%, the impact resistance of the fiberglass reinforced composites is 61.35~78.59 kJ/m2, the tensile resistance is 150.37~162.54 MPa, which are all 30 % higher than that of no added; The dielectric constant ε and dielectric loss tanδ of the composites is between 0.50~0.68 and between 0.008~0.01, respectively.

Characterization of Epoxy/Steel Fibres Composites for Hybrid Injection Moulds

2012 ◽  
Vol 730-732 ◽  
pp. 277-282 ◽  
Author(s):  
Janaina L. Leite ◽  
Gean V. Salmoria ◽  
Carlos H. Ahrens ◽  
António Sergio Pouzada
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Optical Microscopy ◽  
Epoxy Matrix ◽  
Mechanical And Thermal Properties ◽  
Epoxy System ◽  
Steel Fibres ◽  
Hybrid Injection ◽  
Short Steel Fibres

Metallic fibres in polymeric matrix are used for mouldings blocks of hybrid injection moulds improving the mechanical and thermal properties. This paper reports on the characterization of epoxy resin/short steel fibres (SSF) composites. The effect of the concentration of 2,4,6-tris (dimethylamino-methyl) phenol as accelerator in the epoxy system was evaluated by viscosity and dynamical mechanical analyses. The composites were characterized by compression and microhardness tests. The fibres dispersion into the epoxy matrix was analysed by optical microscopy. It was found that the best accelerator concentration for this type of composite was 5,0 parts by weight

Applied Research of the Flexible Epoxy Resin Curing Agent

2012 ◽  
Vol 535-537 ◽  
pp. 2499-2502
Author(s):  
X. Wang ◽  
S. R. Zheng ◽  
R. M. Wang
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Fracture Surface ◽  
Epoxy Resin ◽  
Epoxy Resins ◽  
Applied Research ◽  
Curing Agent ◽  
Structural Adhesives ◽  
Resin Curing ◽  
The Impact

Epoxy resin structural adhesives modified by flexible curing agent. Dependening on the mechanical properties of epoxy resins on the flexible curing agent content was studied. The impact fracture toughness was discussed in terms of fracture surface fractography.

Effect of red mud waste filler on mechanical and thermal properties of amine functional aniline furfuraldehyde condensate (AFAFFC) modified epoxy composite

2016 ◽  
Vol 45 (3) ◽  
pp. 184-190
Author(s):  
B.C. Samanta ◽  
T. Maity
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Red Mud ◽  
Network Formation ◽  
Epoxy Composite ◽  
Reaction Medium ◽  
Concentration Effect ◽  
Mechanical And Thermal Properties ◽  
Content Type ◽  
Modified Epoxy

Purpose This paper aims to evaluate the concentration effect of red mud waste filler on mechanical and thermal properties of amine functional aniline furfuraldehyde condensate (AFAFFC) modified epoxy composite along with the optimum result of modified epoxy. Design/methodology/approach For effective toughening, different compositions were made by adding various concentration of AFAFFC to epoxy. The concentration of 2, 5 and 10 parts per hundred parts of epoxy resin of aluminium silicate-based pristine red mud waste was incorporated into the each modified epoxy matrix. These filled modified matrixes were cured with ambient temperature curing agent triethylene tetramine and evaluated with respect to their impact, tensile and flexural strengths. The morphology was analyzed by scanning electron microscopy and dynamic mechanical analysis. The thermal stability by thermogravimetric analysis was also reported. Findings The modification of epoxy resin using AFAFFC and filler showed significant enhancement of mechanical strength over unmodified epoxy. The increase depends on the concentration of the modifier and filler. The reason behind this is that in the initial stage of curing, the AFAFFC are miscible with the epoxy and form a homogeneous solution. This good mixing promotes the chemical reaction and network formation. During the curing process, as the molecular weight increases, the component separates with in the reaction medium to form a second dispersed phase. Research Limitations/implications The present paper discussed the effect of only one type of modifier, i.e. AFAFFC, and one filler, i.e. red mud waste filler effect. Besides these by changing the amine and aldehyde, other modifiers could be synthesised and the efficiency of modification of epoxy resin using these modifiers and other filler besides red mud waste such as paddy husk, bamboo dust, etc., could also be studied. Originality/value The present study regarding the concentration effect of modifier and filler was novel, and AFAFFC modified filled epoxy could be used in the field of coating, casting, adhesives, potting and encapsulation of semiconductor devices.

Coating, mechanical and thermal properties of epoxy toluene oligomer modified epoxy resin/sepiolite composites

2012 ◽  
Vol 75 (1-2) ◽  
pp. 97-105 ◽  
Author(s):  
Gulnare Ahmetli ◽  
Huseyin Deveci ◽  
Ulku Soydal ◽  
Aslı Seker ◽  
Refika Kurbanli
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Mechanical And Thermal Properties ◽  
Modified Epoxy
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