Effect of variations in load speed on fracture toughness of thermoset polyester/thermoset vinyl ester blend

Nusyirwan,; Yande, F.; Abral, Hairul; Ihamdi,; Dahlan, Hendery; Satria, Eka

doi:10.1063/5.0115043

Cited by 1 publication

(3 citation statements)

References 11 publications

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“…One of the uses of polyester resin is for a composite matrix with fibreglass reinforcement as the main material for the manufacture of fishing boats in Indonesia, as a substitute for wood raw materials which are increasingly scarce for the manufacture of fishing boats [1][2][3]. Until now, the use of boats with polyester resin composites with glass fibre reinforcement has developed very rapidly, starting from small fishing boats, speed boats, and tourist boats to vessels with a medium tonnage of 50 tons to 150 tons [3].…”

Section: Introductionmentioning

confidence: 99%

“…However, this polyester composite cannot match the advantages of wooden ships which are resistant to impacts when docked or colliding with other ships due to sea waves when the ship is docked. Polyester resin is a polymer that is brittle and stiff but has relatively good mechanical strength, is easy to print, shiny, and easy to colour, can flow into narrow gaps, and can be used as a cover or filler for empty materials [5][6][7]. In the engineering field, polyester resin is a material that is very much needed in the engineering field, such as for vehicles, light ship hulls, light aircraft components, and other applications engineering field [3,6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Polyester resin is a polymer that is brittle and stiff but has relatively good mechanical strength, is easy to print, shiny, and easy to colour, can flow into narrow gaps, and can be used as a cover or filler for empty materials [5][6][7]. In the engineering field, polyester resin is a material that is very much needed in the engineering field, such as for vehicles, light ship hulls, light aircraft components, and other applications engineering field [3,6,7]. In its application, this unsaturated polymer is brittle and cannot withstand shock loads and over a long period of use can crack and cause detrimental effects [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Method of Increasing the Fracture Toughness of Unsaturated Polyester with the Addition of Vinyl Ester as a Material for Automotive Body

Nusyirwan,

Fikri,

Vachanidyo

2024

AJMSP

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Unsaturated polyester is the polymer material most widely used for matrix composites in the field of construction engineering, including for ships, automotive components and other engineering fields. The weakness of this polymer is that it is brittle and brittle and is unable to withstand cracking loads due to having cross-linked molecules that easily link together. The study to improve it was mixing with vinyl ester which succeeded in making the polyester crack resistant which was tested using a CTM machine and the fracture was observed using an SEM microscope. The test results showed that the polyester polymer mixed with 30% vinyl ester showed the highest increase in fracture strength, which was equal to K1c = 1.67 N.mm0.5 compared to pure polyester, only K1c = 0.77 N.mm0.5 can increase (216 %). Increasing the mixture content of 30% vinyl ester in polyester will change the brittle nature of unsaturated polyester to become more resilient because the vinyl ester molecules break the bonds of the polyester molecular chains.

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