The effects of cobalt promoter and glass fibers on the curing behavior of unsaturated polyester resin

1997 ◽  
Vol 3 (2) ◽  
pp. 157-169 ◽  
Author(s):  
A. Yousefi ◽  
P. G. Lafleur ◽  
R. Gauvin
Keyword(s):  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Unsaturated Polyester Resin ◽  
Curing Behavior

Fabrication and Characterization of E-Glass Fiber Reinforced Unsaturated Polyester Resin Based Composite Materials

2019 ◽  
Vol 24 ◽  
pp. 1-7
Author(s):  
Md. Naimul Islam ◽  
Harun Ar-Rashid ◽  
Farhana Islam ◽  
Nanda Karmaker ◽  
Farjana A. Koly ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Bending Strength ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Tensile Modulus ◽  
Unsaturated Polyester Resin ◽  
Fiber Reinforced ◽  
Bending Modulus

E-glass fiber mat reinforced Unsaturated Polyester Resin (UPR)-based composites were fabricated by conventional hand lay-up technique. The fiber content was varied from 5 to 50% by weight. Mechanical properties (tensile and bending) of the fabricated composites were investigated. The tensile strength (TS) of the 5% and 50% fiber reinforced composites was 32 MPa and 72 MPa, respectively. Similarly, tensile modulus, bending strength and bending modulus of the composites were increased by the increase of fiber loading. Interfacial properties of the composites were investigated by scanning electron microscopy (SEM) and the results revealed that the interfacial bond between fiber and matrix was excellent. Keywords: Unsaturated Polyester Resin, Mechanical Properties, E-glass Fibers, Composites, Polymer.

scholarly journals Short- and Long-Term Structural Characterization of Cured-in-Place Pipe Liner with Reinforced Glass Fiber Material

2020 ◽  
Vol 17 (6) ◽  
pp. 2073
Author(s):  
Hyon Wook Ji ◽  
Dan Daehyun Koo ◽  
Jeong-Hee Kang
Keyword(s):  
Flexural Strength ◽  
Glass Fiber ◽  
Polyester Resin ◽  
Structural Strength ◽  
Structural Characteristics ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Unsaturated Polyester Resin ◽  
Short And Long Term

Cured-in-place pipe (CIPP), as a kind of trenchless sewer rehabilitation technology, is a method to repair sewer pipe using unsaturated polyester resin. This study develops a CIPP liner using hot water or steam curing as well as glass fiber, in contrast to traditional methods, which use nonwoven fabric. Composite material samples were fabricated by combining liner materials using various methods, and the structural characteristics of the liners were compared and analyzed through short- and long-term flexural strength tests. A long-term test was conducted for 10,000 h, and the results revealed 13.3 times higher flexural strength and 8 times higher flexural modulus than the American Society for Testing Materials minimum criteria for CIPP short-term properties. The maximum creep retention factor was 0.64, thereby reducing the design thickness of the CIPP by up to 54%. The structural characteristics also improved when glass fibers were mixed with traditional CIPP liner, making it possible to reduce the thickness by 30%. Glass fibers result in high structural strength when combined with unsaturated polyester resin. Structural strength increased, even when glass fibers were mixed with traditional CIPP liner. The main contribution of this research is the development of a high strength CIPP liner and improvement of the structural properties of CIPP lining without using the specially formulated resin or lining materials.

scholarly journals Effect of ply lay-up and curing pressure on void content in GFRP laminates of unsaturated polyester resin-reinforced woven E-glass fibers

2017 ◽  
Vol 31 (12) ◽  
pp. 5779-5784 ◽  
Author(s):  
Yeo Kiam Beng ◽  
Mohd Noh Dalimin ◽  
Mohd Sapuan Salit ◽  
Mohd Aidy Faizal ◽  
Mohd Kamal Mohd Shah
Keyword(s):  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Unsaturated Polyester Resin ◽  
Void Content ◽  
Curing Pressure

Analysis of pultrusion processing of composites of unsaturated polyester resin with glass fibers

1996 ◽  
Vol 17 (3) ◽  
pp. 478-485 ◽  
Author(s):  
S. M. Moschiar ◽  
M. M. Reboredo ◽  
J. M. Kenny ◽  
A. Vázquez
Keyword(s):  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Unsaturated Polyester Resin ◽  
Processing Of Composites
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