Numerical Analysis of the Mechanical Properties of Rice Husk-Polyester Composites

The production of hot-pressed composite materials based on unsaturated polyester resin reinforced with rice husk is described. A correlation equation relating the tensile and compressive mechanical properties as a function of both rice husk concentration and the pressure applied to the mold was obtained.

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A Study of Some Mechanical and Chemical Properties of Composite Materials Made Up of UPR and ISO/NPG Granules of the Type of Buzi/Perdido Cromate

Revista de Chimie ◽

10.37358/rc.18.5.6258 ◽

2018 ◽

Vol 69 (5) ◽

pp. 1045-1049

Author(s):

Ion Ciuca ◽

Marius Marinel Stanescu ◽

Dumitru Bolcu ◽

Luminita Florentina Deaconu (Stanescu)

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

Modulus Of Elasticity ◽

Polyester Resin ◽

Unsaturated Polyester ◽

Characteristic Curve ◽

Chemical Properties ◽

Unsaturated Polyester Resin ◽

Ftir Analysis ◽

And Chemical Properties

In this work we have measured the mechanical properties for unsaturated polyester resin (UPR) and unsaturated polyester resin mixed with isophthalic resin granules NPG (Neopentyl Glycol) of the type of Buzi/Perdido Chromate. All sets of samples underwent compression testing. We obtained the characteristic curve, the admissible resistance to compression, and the modulus of elasticity for each sample. Moreover, on the basis of FTIR analysis we measured the type of bonds (C-O, C=O, C-C and various bonds in the functional groups) in each polymer.

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Physical and mechanical properties of unsaturated polyester resin matrix from recycled PET (based PG ) with corn straw fiber

Journal of Applied Polymer Science ◽

10.1002/app.51305 ◽

2021 ◽

pp. 51305

Author(s):

Nora Abigail Wilson García ◽

Jorge Luis Almaral Sánchez ◽

Ramón Álvaro Vargas Ortiz ◽

Abel Hurtado Macías ◽

Nelly Flores Ramírez ◽

...

Keyword(s):

Mechanical Properties ◽

Polyester Resin ◽

Unsaturated Polyester ◽

Physical And Mechanical Properties ◽

Unsaturated Polyester Resin ◽

Resin Matrix ◽

Corn Straw ◽

Recycled Pet

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High Mechanic Enhancement of Chopped Carbon Fiber Reinforced-Low-Density Unsaturated Polyester Resin Composite at Low Preparation Temperature with Facile Polymerization

Materials ◽

10.3390/ma14154273 ◽

2021 ◽

Vol 14 (15) ◽

pp. 4273

Author(s):

Jian Zhang ◽

Xiaojun Wang ◽

Xinjun Fu

Keyword(s):

Composite Materials ◽

Carbon Fiber ◽

Low Temperature ◽

Surface Defect ◽

Polyester Resin ◽

Unsaturated Polyester ◽

Unsaturated Polyester Resin ◽

Low Density ◽

Fiber Reinforced ◽

Preparation Temperature

Chopped carbon fiber-reinforced low-density unsaturated polyester resin (CCFR-LDUPR) composite materials with light weight and high mechanical properties were prepared at low temperature and under the synergistic action of methyl ethyl ketone peroxide (MEKP-II) and cobalt naphthenate. Optimal preparation conditions were obtained through an orthogonal experiment, which were preparation temperature at 58.0 °C, 2.00 parts per hundred of resin (phr) of NH4HCO3, 4.00 phr of chopped carbon fibers (CCFs) in a length of 6.0 mm, 1.25 phr of initiator and 0.08 phr of cobalt naphthenate. CCFR-LDUPR composite sample presented its optimal properties for which the density (ρ) was 0.58 ± 0.02 g·cm−3 and the specific compressive strength (Ps) was 53.56 ± 0.83 MPa·g−1·cm3, which is 38.9% higher than that of chopped glass fiber-reinforced low-density unsaturated polyester resin (CGFR-LDUPR) composite materials. Synergistic effects of initiator and accelerator accelerated the specific polymerization of resin in facile preparation at low temperature. Unique “dimples”, “plate microstructure” and “surface defect” fabricated the specific microstructure of the matrix of CCFR-LDUPR composite samples, which was different from that of cured unsaturated polyester resin (UPR) with “body defect” or that of CGFR-LDUPR with coexistence of “surface defect” and “body defect”.

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

Nano Hybrids and Composites ◽

10.4028/www.scientific.net/nhc.24.1 ◽

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.

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