Curing kinetics of medium reactive unsaturated polyester resin used for liquid composite molding process

2009 ◽  
Vol 114 (4) ◽  
pp. 2415-2420 ◽  
Author(s):  
Raghu Raja Pandiyan K. ◽  
Saikat Chakraborty ◽  
Gautam Kundu ◽  
Swati Neogi
Keyword(s):  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Curing Kinetics ◽  
Unsaturated Polyester Resin ◽  
Liquid Composite Molding ◽  
Molding Process ◽  
Composite Molding ◽  
Kinetics Of

scholarly journals A Study of Nanoclay Reinforcement of Biocomposites Made by Liquid Composite Molding

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Farida Bensadoun ◽  
Nadir Kchit ◽  
Catherine Billotte ◽  
Simon Bickerton ◽  
François Trochu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Flax Fiber ◽  
Unsaturated Polyester Resin ◽  
Liquid Composite Molding ◽  
Filling Time ◽  
Composite Molding ◽  
Mixing Techniques

Liquid composite molding (LCM) processes are widely used to manufacture composite parts for the automotive industry. An appropriate selection of the materials and proper optimization of the manufacturing parameters are keys to produce parts with improved mechanical properties. This paper reports on a study of biobased composites reinforced with nanoclay particles. A soy-based unsaturated polyester resin was used as synthetic matrix, and glass and flax fiber fabrics were used as reinforcement. This paper aims to improve mechanical and flammability properties of reinforced composites by introducing nanoclay particles in the unsaturated polyester resin. Four different mixing techniques were investigated to improve the dispersion of nanoclay particles in the bioresin in order to obtain intercalated or exfoliated structures. An experimental study was carried out to define the adequate parameter combinations between vacuum pressure, filling time, and resin viscosity. Two manufacturing methods were investigated and compared: RTM and SCRIMP. Mechanical properties, such as flexural modulus and ultimate strength, were evaluated and compared for conventional glass fiber composites (GFC) and flax fiber biocomposites (GFBiores-C). Finally, smoke density analysis was performed to demonstrate the effects and advantages of using an environment-friendly resin combined with nanoclay particles.

Sign in / Sign up

Export Citation Format

Share Document