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Self‐synthesized Epoxy Terminated Polydimethylsiloxane With Various Molecular Weights Toughening Epoxy Resin

B. Li, Qianping Ran, Dewen Sun, Hao Yin, Yun Wan, Yu-ting Liu, Yonglin Mao, J. Liu
Published 2018 · Materials Science

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Polydimethylsiloxane terminated by epoxy group (EP-PDMS) with various molecular weight ( M¯n) were synthesized by 1,3-bis[3-(2,3-epoxypropoxy)-propyl]-1,1,3,3-tetramethyldisiloxane (DOTMDS) and dimethylcyclosiloxane (Dn). The epoxy value measured by potentiometric titration, were 0.161, 0.092, 0.065, 0.044 mol/100 g, and the M¯n (calculated from epoxy value) 1,242, 2,174, 3,077, 4,545 g/mol, respectively (corresponding to EP-PDMS1, 2, 3, 4). With the increasing ratio of Dn/DOTMDS, we can see the increase of M¯n and the decrease of epoxy group content according to FTIR result. Then these EP-PDMS were used to improve the toughness of the epoxy resin (diglycidyl ether of bisphenol A, DGEBA). Mechanical tests showed that, the impact strength of the epoxy resin was improved by EP-PDMS. The toughening effect was decreased when EP-PDMS with relative higher M¯n was used. This was ascribed to that the EP-PDMS with high M¯n was easier to agglomerate, and the active group was easier to be embedded which in turn resulted in lower toughening efficiency. This was also confirmed by scanning electron microscopy results. J. VINYL ADDIT. TECHNOL., 2016. © 2016 Society of Plastics Engineers
This paper references
Preparation and characterization of poly(methyl‐3,3,3‐trifluoropropylsiloxane‐co‐dimethylsiloxane)
H. Kobayashi (1993)
Effect of blending sequence on the morphology and impact toughness of poly(ethylene terephthalate)/polycarbonate blends
J. Wu (2000)
Effect of the addition of aramid-silicone block copolymer on phase structure and toughness of cured epoxy resins modified with silicone
Mitsukazu Ochi (1998)
Modification of Aminosilicone Oil with Long Side-Chain and its Application on Fabric Finishing
L. Cai (2012)
Coatings of PDMS-modified epoxy via urethane linkage: Segmental correlation length, phase morphology, thermomechanical and surface behavior
S. Rath (2009)
Toughening of epoxy resins by hydroxy‐terminated, silicon‐modified polyurethane oligomers
S. Bhuniya (2003)
Phase structure and toughness of silicone-modified epoxy resin with added silicone graft copolymer
Mitsukazu Ochi (1999)
Bisphenol-A polycarbonate/polydimethylsiloxane multiblock copolymers. I. Synthesis and characterization
C. Ma (1997)
Compatibility Enhancement of ABS/PVC Blends
D. Jin (1998)
Kinetic method by using calorimetry to mechanism of epoxy-amine cure reaction
R. M. Vinnik (2006)
Fast Fourier Transform IR Characterization of Epoxy GY Systems Crosslinked with Aliphatic and Cycloaliphatic EH Polyamine Adducts
G. Nikolic (2010)
Spray pyrolysis deposition and characterization of titanium oxide thin films
L. Castañeda (2003)
Synthesis of Siloxanes Containing Vinyl and Epoxy Group and its Enhancement for Adhesion of Addition-Cure Silicone Encapsulant
Kexue Pan (2013)
High‐impact toughness poly(vinyl chloride)/(α‐methylstyrene)‐acrylonitrile‐butadiene‐styrene copolymer/acrylic resin blends: Thermal properties and toughening mechanism
Z. Zhang (2015)
Toughness enhancement of poly(lactic acid) by melt blending with natural rubber
Ruedee Jaratrotkamjorn (2012)
Isothermal crystallization behavior of β-nucleated isotactic polypropylene with different melt structures
J. Kang (2014)
Polysiloxane-based core-shell microspheres for toughening of epoxy resins
P. Roy (2014)
Polyhydroxyether-polydimethylsiloxane graft copolymers: 2. Properties and morphology
A. Holohan (1994)
Study of polysiloxanes containing epoxy groups: I. Synthesis and characterization of polysiloxanes containing 3-(2,3-epoxypropoxy)propyl groups
S. Feng (2000)
Effect of dimethylpolysiloxane liquid on the cryogenic tensile strength and thermal contraction behavior of epoxy resins
J. W. Yi (2014)
Novel luminescent molecular-based hybrid organic–inorganic terbium complex covalently bonded materials via sol–gel process
Q. Wang (2004)
Blends of poly(vinyl chloride) with α‐methylstyrene‐acrylonitrile‐butadiene‐styrene copolymer: Thermal properties, mechanical properties, and morphology
Z. Zhang (2013)
Highly toughened poly (acrylonitrile–styrene–acrylic)/chlorinated polyethylene blends: Mechanical, rheological and thermal properties
Z. Zhang (2015)

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