The Influence of Thermal Behaviour to Composites Based on Cotton Tissue and Unsaturated Polyester Resin

The work focuses some experimental aspects concerning the weight gain, differential scanning calorimetric (DSC), dilatometer analysis (DIL) and thermo - gravimetric analysis (TG/DTA) for a composite material, based on cotton tissue and unsaturated polyester resin noted MCTDBN and immersed in salt water with 5% NaCl for 90 days. Following these analyzes are emphasized the thermal expansion, temperature glass transition and thermal decomposition. Before of thermal analysis, the treated specimens were dried in an oven at temperature of 30�C for several days. The paper presents also the effect of salt solution treatment and comparative analysis between untreated and treated composites.

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Preparation and Flame Retardancy of Unsaturated Polyester Resin Containing P-Toluenesulfonate-Pillared Layered Double Hydroxide

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.399-401.1372 ◽

2011 ◽

Vol 399-401 ◽

pp. 1372-1375 ◽

Cited By ~ 1

Author(s):

Xiang Li Xie ◽

Lin Jiang Wang ◽

Guo Wei Zhang

Keyword(s):

Layered Double Hydroxide ◽

Flame Retardancy ◽

Polyester Resin ◽

Oxygen Index ◽

Unsaturated Polyester ◽

Thermo Gravimetric Analysis ◽

Unsaturated Polyester Resin ◽

Limit Oxygen Index ◽

Gravimetric Analysis ◽

Double Hydroxide

The p-toluene sulfonate- pillared layered double hydroxide(PTS-LDH) was synthesized by co-precipitation method, unsaturated polyester resin/ PTS-LDH composites were prepared by solution blending and solidifying. The X-ray diffraction was used to characterize the structure of the composites. The thermal stability and fire properties of composites have been studied by thermo- gravimetric analysis, limit oxygen index and UL94 burning test. The results show that the interlayer space of original LDH was 0.775nm, which was increased to 1.73nm for PTS-LDH and 2.077 nm for unsaturated polyester resin/ PTS-LDH composite. The addition of PTS-LDH improved the flame retardancy of unsaturated polyester resin. Limit oxygen index of unsaturated polyester resin/ PTS-LDH composite was increased to 23.30 % from 21% of the pure resin, the char residue rate increased by 3.7% and the speed of horizontal burning was decreased by 20.24%. The vertical burning test (UL-94) results indicated that the materials achieved V-2 grade.

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Dynamic Mechanical Analysis and Thermo-Gravimetric Analysis on Chopped Strand Mat Reinforced with Polyester Resin and Graphite Powder

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1148.48 ◽

2018 ◽

Vol 1148 ◽

pp. 48-60

Author(s):

Pala Srinivas Reddy ◽

T. Victor Babu ◽

S. Santosh Kumar

Keyword(s):

Dynamic Mechanical Analysis ◽

Polyester Resin ◽

Thermo Gravimetric Analysis ◽

Graphite Powder ◽

Mechanical Analysis ◽

Gravimetric Analysis ◽

Thermo Gravimetric ◽

Dynamic Mechanical ◽

Wide Range ◽

Chopped Strand Mat

Fiber reinforced plastics have been widely used for manufacturing aircrafts and spacecrafts structural parts because of their high mechanical, physical properties. These are used in manufacturing of structural composites, printed circuit boards and in a wide range of special-purpose products which are included in medical field as well. Within reinforcing materials chopped strand mats are the most frequently used in structural constructions because of their properties such as viscoelasticity, strength and high thermal stability. The present work focuses on mechanical and thermal properties of chopped strand mat reinforced with polyester resin and filler as graphite powder (which has high melting point) in different weight fractions. Evaluation of material properties is tested using Thermo-Gravimetric Analysis and Dynamic Mechanical analysis at a standard temperature ranging between 20°C - 460°C and evaluated. The results show that inclusion of graphite powder in chopped strand mat exhibit better enhancement in results when compared.

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