Enhanced mechanical properties and biosafety evaluation of surface-modified fiberglass-reinforced resin-based composite piles

Hu, Xiaokun; Liu, Mei; Ji, Yu; Du, Yueming; Wang, Lili; Zhou, Xuefeng; Zhang, Feimin

doi:10.1007/s10856-019-6269-z

Cited by 5 publications

(4 citation statements)

References 26 publications

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“…Guided tissue regeneration membranes need to endure the tensile force from tissue extraction and possess high flexibility to keep structural integrity during the surgical process ( Geão et al, 2019 ). Pure collagen membrane of this our thin-layer scale is too mechanically fragile to test its tensile strength, since it would break when it was placed between testing clamps.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Collagen/PVA Dual-Layer Membranes for Periodontal Bone Regeneration

Zhou

Chen

Ding

et al. 2021

Front. Bioeng. Biotechnol.

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Guided tissue regeneration (GTR) is a promising treatment for periodontal tissue defects, which generally uses a membrane to build a mechanical barrier from the gingival epithelium and hold space for the periodontal regeneration especially the tooth-supporting bone. However, existing membranes possess insufficient mechanical properties and limited bioactivity for periodontal bone regenerate. Herein, fish collagen and polyvinyl alcohol (Col/PVA) dual-layer membrane were developed via a combined freezing/thawing and layer coating method. This dual-layer membrane had a clear but contact boundary line between collagen and PVA layers, which were both hydrophilic. The dual membrane had an elongation at break of 193 ± 27% and would undergo an in vitro degradation duration of more than 17 days. Further cell experiments showed that compared with the PVA layer, the collagen layer not only presented good cytocompatibility with rat bone marrow-derived mesenchymal stem cells (BMSCs), but also promoted the osteogenic genes (RUNX2, ALP, OCN, and COL1) and protein (ALP) expression of BMSCs. Hence, the currently developed dual-layer membranes could be used as a stable barrier with a stable degradation rate and selectively favor the bone tissue to repopulate the periodontal defect. The membranes could meet the challenges encountered by GTR for superior defect repair, demonstrating great potential in clinical applications.

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Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Collagen/PVA Dual-Layer Membranes for Periodontal Bone Regeneration

Zhou

Chen

Ding

et al. 2021

Front. Bioeng. Biotechnol.

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“…The weight loss that occurred between 200°C and 350°C for each group of fibers involved a small amount of organic wetting agent remaining on the quartz fiber surface. 36 , 37 In the 350–550°C temperature range, weight loss occurred in group B–F fibers after the removal of the wetting agent. The weight loss involved the silane bond generated via the reaction of the silane coupling agent, which was broken at high temperatures.…”

Section: Resultsmentioning

confidence: 99%

Shear Bond Strength to Enamel, Mechanical Properties and Cellular Studies of Fiber-Reinforced Composites Modified by Depositing SiO2 Nanofilms on Quartz Fibers via Atomic Layer Deposition

Shu,

Chen,

Zhang

et al. 2024

IJN

Self Cite

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Introduction Poor interfacial bonding between the fibers and resin matrix in fiber-reinforced composites (FRCs) is a significant drawback of the composites. To enhance the mechanical properties of FRC, fibers were modified by depositing SiO 2 nanofilms via the atomic layer deposition (ALD) technique. This study aims to evaluate the effect of ALD treatment of the fibers on the mechanical properties of the FRCs. Methods The quartz fibers were modified by depositing different cycles (50, 100, 200, and 400) of SiO 2 nanofilms via the ALD technique and FRCs were proposed from the modified fibers. The morphologies, surface characterizations of nanofilms, mechanical properties, and cytocompatibility of FRCs were systematically investigated. Moreover, the shear bond strength (SBS) of FRCs to human enamel was also evaluated. Results The SEM and SE results showed that the ALD-deposited SiO 2 nanofilms have good conformality and homogeneity. According to the results of FTIR and TGA, SiO 2 nanofilms and quartz fiber surfaces had good chemical combinations. Three-point bending tests with FRCs showed that the deposited SiO 2 nanofilms effectively improved FRCs’ strength and Group D underwent 100 deposition cycles and had the highest flexural strength before and after aging. Furthermore, the strength of the FRCs demonstrated a crescendo-decrescendo tendency with SiO 2 nanofilm thickness increasing. The SBS results also showed that Group D had outstanding performance. Moreover, the results of cytotoxicity experiments such as cck8, LDH and Elisa, etc., showed that the FRCs have good cytocompatibility. Conclusion Changing the number of ALD reaction cycles affects the mechanical properties of FRCs, which may be related to the stress relaxation and fracture between SiO 2 nanofilm layers and the built-up internal stresses in the nanofilms. Eventually, the SiO 2 nanofilms could enhance the FRCs’ mechanical properties and performance to enamel by improving the interfacial bonding strength, and have good cytocompatibility.

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“…As reported by numerous researchers, high-aspect-ratio materials possess high specific modulus and specific strength, which substantially enhances mechanical strength when combined with photocurable resin to form composites [6][7][8]. He et al [9] synthesized a composite material by adding glass fiber as the reinforcing phase to epoxy resin for light-curing rapid prototyping, demonstrating that increasing the glass fiber content in the system led to an improvement in the shear, bending, and tensile strengths of the resin.…”

Section: Introductionmentioning

confidence: 92%

A Study on the Application Performance of High-Aspect-Ratio Nano-Ettringite in Photocurable Resin Composites

Cao,

Zhu

2024

Preprint

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In this study, the impact of the addition of high-aspect-ratio nano-ettringite to photocurable epoxy acrylate resin was explored, with a specific focus on the changes observed in viscosity, shrinkage, tensile strength, and elongation at the break of composites formed. Herein, the nano-ettringite samples were modified using KH-570. The 3 wt% or 6 wt% KH-570-modified and unmodified nano-ettringite were dispersed into the resin by ultrasonic treatment in conjunction with mechanical stirring. The grafting effects of nano-ettringite onto KH-570 were analyzed through scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric (TG) analysis, and Fourier transform infrared spectroscopy (FTIR). The results demonstrate that increased dosages of unmodified and modified nano-ettringite led to increased viscosity of the composite while reducing shrinkage. At the same dosage, the photocurable resin with modified nano-ettringite demonstrated a lower shrinkage and a higher tensile strength. Notably, when the amount of modified nano-ettringite was 3 wt%, the highest tensile strength of the composite was 64.61 MPa, presenting a 72.57% increase compared to the blank sample. Furthermore, the incorporation of modified nano-ettringite as a filler provides a new perspective for improving the performance of photocurable epoxy acrylate resin composites.

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Enhanced mechanical properties and biosafety evaluation of surface-modified fiberglass-reinforced resin-based composite piles

Cited by 5 publications

References 26 publications

Fabrication and Characterization of Collagen/PVA Dual-Layer Membranes for Periodontal Bone Regeneration

Fabrication and Characterization of Collagen/PVA Dual-Layer Membranes for Periodontal Bone Regeneration

Shear Bond Strength to Enamel, Mechanical Properties and Cellular Studies of Fiber-Reinforced Composites Modified by Depositing SiO2 Nanofilms on Quartz Fibers via Atomic Layer Deposition

A Study on the Application Performance of High-Aspect-Ratio Nano-Ettringite in Photocurable Resin Composites

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