A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Effect of Interpenetrating Polymer Network (IPN) Thermoplastic Resin on Flexural Strength of Fibre-Reinforced Composite and the Penetration of Bonding Resin into Semi-IPN FRC Post




TekijätHatta Minori, Shinya Akikazu, Gomi Harunori, Vallittu Pekka K., Säilynoja Eija, Lassila Lippo V. J.

KustantajaMDPI

Julkaisuvuosi2021

JournalPolymers

Tietokannassa oleva lehden nimiPOLYMERS

Lehden akronyymiPOLYMERS-BASEL

Artikkelin numeroARTN 3200

Vuosikerta13

Numero18

Sivujen määrä12

DOIhttps://doi.org/10.3390/polym13183200

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/detail/Publication/67788582


Tiivistelmä
The purpose of this study was to evaluate the effects of interpenetrating polymer network (IPN) thermoplastic resin on the flexural strength of fibre-reinforced composite (FRC) with different IPN polymer compositions. The penetration of bonding resin into semi-IPN FRC posts was also evaluated. The IPN thermoplastic resin used was UDMA-MMA monomer with either PMMA (0.5%, 2%, 5%) or PMMA-copolymer (0.5%, 2%). A no added IPN polymer resin was also made. Mixed resin was impregnated to S- and E-glass fibre rovings. These resins and resin impregnated fibres were used for flexural strength (FS) test. To evaluate the penetration of bonding resin into semi-IPN post, SEM observation was done with various impregnation time and polymerization mehods (hand-light- and oven-cure). The result of FS was recorded from 111.7 MPa (no-IPN polymer/no-fibre-reinforcement) to 543.0 MPa (5% PMMA/S-glass FRC). ANOVA showed that there were significant differences between fibre-reinforcement and no-fibre-reinforcement (p < 0.01) both in S- and E-glass fibre groups, and between 0.5% PMMA and 5% PMMA in the S-glass FRC group. SEM micrographs showed that the penetration layers of bonding resin into hand-light cured semi-IPN posts were different according to impregnation time. Fibre reinforcement is effective to improve flexural strength. The depth of penetration layer of bonding resin into semi-IPN matrix resin was improved when a hand-light cure was used.

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Last updated on 2024-26-11 at 18:37