Determination of the orientation of short glass fibers in sheet molding compound (SMC)

1987 ◽  
Vol 8 (2) ◽  
pp. 82-93 ◽  
Author(s):  
Hua-tie Kau
Keyword(s):  
Glass Fibers ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Short Glass

Design of Thermal Transferring of Plane Mould for Low Pressure Sheet Molding Compound

2010 ◽  
Vol 44-47 ◽  
pp. 2607-2611
Author(s):  
Jian Li ◽  
Zhi Xiong Huang
Keyword(s):  
High Weight ◽  
Glass Fibers ◽  
Low Pressure ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Heating Pipes ◽  
Weight Content ◽  
Fracture Area ◽  
Mold Flow ◽  
Highly Uniform

Mathematical simulation of mold flow of glass fibers and design of heat transferring of plane mould for low pressure sheet molding compound were analyzed and optimized by MATLAB software in this article. The flexural properties of specimens molded in conventional and thermal-deign optimized mould were compared. The fracture surfaces of specimens were carefully investigated by SEM, too. The results show that the surface temperature of the mould was highly uniform during the process of curing when the distribution of the heating pipes in the plane mould was optimized. The flexural strengths of the specimens, cut from the center and the corner of the parts molded by thermal optimized mould, are almost the same and can reach about 170MPa. And the distribution of glass fiber with high weight content adhering well with resin is uniform in the fracture area.

Bio-Based and Renewable Filler Materials for Thermoset Compounds

2019 ◽  
Vol 809 ◽  
pp. 650-657
Author(s):  
Florian Gortner ◽  
Peter Mitschang
Keyword(s):  
Glass Fibers ◽  
Fiber Reinforced Polymer ◽  
Filler Materials ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Automotive Components ◽  
Density Reduction ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
The 1960S

Sheet Molding Compound (SMC) was developed in the 1960s and initially enabled the production of glass fiber reinforced polymer composite (GFRPC) in mass production. Nowadays, both material and process are well established for the production of semi-structural components in various applications from construction industry to automotive components. Currently, approximately 20% of all glass fibers produced in Europe are processed to SMC. In this paper, the use of renewable filler materials in SMC is described. By using those alternative fillers, a density reduction of 20%, while maintaining same processability and mechanical properties of SMC, can be achieved.

Synergistic Effect on Flexural Properties of Kenaf-Glass Hybrid Composite

2012 ◽  
Vol 626 ◽  
pp. 989-992 ◽  
Author(s):  
Atiqah Afdzaluddin ◽  
Md Abdul Maleque ◽  
Mohammed Iqbal
Keyword(s):  
Synergistic Effect ◽  
Hybrid Composite ◽  
Volume Fraction ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Flexural Properties ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Structural Applications ◽  
The Matrix

This paper presents the synergistic effect on flexural properties of kenaf-glass (KG) mat reinforced unsaturated polyester (UPE) hybrid composite which can compounded using sheet molding compound (SMC) process. The matrix is kept constant with 70 % volume fraction while kenaf and glass fibers were varied, such as 7.5/22.5 v/v, 15/15 v/v and 22.5/7.5 v/v. The 30 % kenaf and 30 % glass are also used for the preparation of composite materials. The kenaf mat was treated with 6% sodium hydroxide (NaOH) diluted solution for 3 hours. This mercerization process improved the interface by interacting with both the fiber and its matrix. The flexural test was performed using ASTM D790-03 standard. The study showed with the addition of kenaf and glass mat 15/15 v/v, the optimum flexural properties was obtained compared to other composition. This can be concluded that 15/15 v/v KG mat reinforced unsaturated polyester hybrid composite is the most appropriate hybrid composite which can be considered for many engineering structural applications mainly in automotive panel, bottom structure and bumper beam.

Basalt fibers as a sustainable and cost-effective alternative to glass fibers in sheet molding compound (SMC)

2017 ◽  
Vol 123 ◽  
pp. 210-218 ◽  
Author(s):  
Amir Asadi ◽  
Ferdinand Baaij ◽  
Hendrik Mainka ◽  
Michael Rademacher ◽  
Jeffrey Thompson ◽  
...  
Keyword(s):  
Glass Fibers ◽  
Cost Effective ◽  
Effective Alternative ◽  
Basalt Fibers ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Cost Effective Alternative

Lightweight alternatives to glass fiber/epoxy sheet molding compound composites: A feasibility study

2018 ◽  
Vol 53 (14) ◽  
pp. 1985-2000
Author(s):  
Amir Asadi ◽  
Ferdinand Baaij ◽  
Robert J Moon ◽  
Tequila AL Harris ◽  
Kyriaki Kalaitzidou
Keyword(s):  
Glass Fiber ◽  
Cellulose Nanocrystals ◽  
Mechanical Performance ◽  
Fiber Type ◽  
Glass Fibers ◽  
Basalt Fiber ◽  
Basalt Fibers ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Significant Difference

The focus of this study is to (i) understand the effect of the fiber type and content on the mechanical properties of sheet-molding compounds composites and (ii) investigate possible lightweight alternatives to glass fibers-sheet molding compound composites. Glass fiber and basalt fibers are used to make sheet-molding compound composites and the mechanical performance are determined as a function of the fiber type and content. In addition, cellulose nanocrystals are used to enhance the properties of the sheet-molding compound resin system. The possibility of lightweighting the basalt fiber/epoxy and glass fiber/epoxy sheet-molding compound composites is explored by replacing a portion of the fibers, i.e. 12–16 wt%, with a small amount cellulose nanocrystals, i.e. 1–2 wt%. No significant difference was found between the basalt fiber/epoxy and glass fiber/epoxy sheet-molding compound composites in terms of mechanical and impact properties. When cellulose nanocrystals were added to the composites, the properties of glass fiber/epoxy sheet-molding compound composites were enhanced while those of basalt fiber/epoxy sheet-molding compound composites deteriorated.

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