Experimental analysis of compressive behavior of E-Glass fiber reinforced IPN (vinyl ester/polyurethane) composite pipes

Abstract

The manuscript discusses about the effect of compressive load on the E-Glass fiber reinforced interpenetrating polymer networks (IPNs). In this work, a series of combination of vinyl ester (VER) loaded polyurethane (PU) IPNs have been taken as the matrix material with the E-Glass reinforcement, with the loading of 0%, 10%, 20%, 30%, 40%, 50% PU respectively. Besides hand-layup technique was used to fabricate the cylindrical shells in order to get the final shape of the IPN composite pipe. Simultaneously to validate the compressive strength behavior of the IPN composite pipe, experimental analysis was carried out as per the ASTM D695 standard at normal room temperature to extract compressive strength value of the PU loaded IPN composite pipes. During this test, it was observed that physical strength of the composite pipes reduces gradually as much as PU addition into the IPN composite pipe increases. Surprisingly, another important notification was that, the geometric structure of the composite pipes is not affected as like as the crushing observed on the pure VER pipe. As much as loading of the PU into the IPN, increases the structural integrity of the composite pipes in outstanding (retains structural ability) manner. Further the experimental analysis values are validated with numerical analysis software ANSYS, obtained values and numerical values are shown good agreement each other.

Effect of ketal group in castor oil acid‐based plasticizer on the properties of poly(vinyl chloride)

“…From Figure 3(a), it is clearly discerned that PVC‐D, PVC‐C, and PVC‐K displayed only one tan δ peak, suggesting that these plasticizers had good compatibility with PVC matrix. The T g values of PVC‐D, PVC‐C, and PVC‐K were 22.3, 40.5, and 20.6°C, respectively, while the T g value of pure PVC was in the range of 80–90°C 8,19–22 . According to the free volume theory of plasticization, the molecule of plasticzier possesses the ability to reduce interactions between PVC chains and increase the free volume between the polymeric chains.…”

“…Also, phthalates have been banned in certain applications due to the high risk of toxic and biological effects on the humans, and phthalates are usually generated from petroleum resources 13–15 . Therefore, to find a substitute for conventional DOP with comparable performance, nontoxic plasticizers based on sustainable resources have attracted a lot of attention in recent years, 16–18 with biobased resources receiving much attention due to their nontoxic and sustainable characteristics 19–21 . As a result, numerous alternative plasticizers derived from biobased resources, have been developed, including fatty acid esters, 22,23 tung oil, 24,25 soybean oil, 26,27 isosorbide, 28,29 castor oil, 30–32 and tartaric acid 33 .…”

Pengaruh Temperatur Rendah pada Sifat Bending dari Pipa Komposit Epoxy dengan Penguatan Serat Jute

“…Adapun hasil yang didapat adalah dampak energi thresh-old telah menunjukkan efek signifikan terhadap terbentuknya faktor-faktor seperti kekuatan sisa, pada tiap kegagalan komposit karena pemuatan kompresi. Kajiankajian dari sifat mekanik dan phisik dari pipa dengan bahan komposit juga dilakukan oleh beberapa peneliti [4,9,19,20,[22][23][24] . Secara khusus pada pipa komposit terhadap pembebanan bending dilakukan oleh [2,25] Sejalan dengan penggunaan serat alam sebagai penguat serat jute adalah serat yang paling banyak diaplikasikan.…”