Effects of Al2O3 on the Structure and Properties of Calcium-Magnesium-Silicate Glass Fiber

2012 ◽  
Vol 450-451 ◽  
pp. 42-45
Author(s):  
Hao Liu ◽  
Xi Tang Wang ◽  
Zhou Fu Wang ◽  
Bao Guo Zhang
Keyword(s):  
High Temperature ◽  
Glass Fiber ◽  
Silicate Glass ◽  
Network Structure ◽  
Glass Fibers ◽  
Rapid Development ◽  
Magnesium Silicate ◽  
Ceramic Fiber ◽  
Dissolution Properties ◽  
Calcium Magnesium

Calcium-magnesium-silicate glass fiber is a kind of candidate materials for aluminosilicate ceramic fiber in high temperature resistant field. However, the large thermal shrinkage limits its rapid development and industrial application in high temperature insulation field. It has been known that the shrinkage under high temperatures is mainly affected by the structure and crystallization mechanisms of glass fibers. Thus, Al2O3 was chosen as additive in the chemical composition of glass fiber to investigate the glassy network structure, crystallization and dissolution properties of calcium-magnesium-silicate glass fiber by DTA, XRD and ICP-AES techniques. The results show that with the addition of Al2O3, the glassy network structure was strengthened and the precipitation of crystals was inhibited for heat-treated fibers. As for the dissolution properties in physiological fluids, though the weight losses, changes of pH values and leached ions concentration lowered slightly with the addition of Al2O3 for the intensified network structure, fibers still present high dissolution rates.

Dissolution behavior of calcium-magnesium-silicate glass fiber

2011 ◽  
Vol 18 (6) ◽  
pp. 1833-1837 ◽  
Author(s):  
Hao Liu ◽  
Xi-tang Wang ◽  
Bao-guo Zhang ◽  
Zhou-fu Wang
Keyword(s):  
Glass Fiber ◽  
Silicate Glass ◽  
Magnesium Silicate ◽  
Dissolution Behavior ◽  
Calcium Magnesium

Structure and Properties of Calcium-Magnesium-Silicate Ceramic Fiber with Nd2O3

2011 ◽  
Vol 295-297 ◽  
pp. 406-409 ◽  
Author(s):  
Hao Liu ◽  
Xi Tang Wang ◽  
Zhou Fu Wang ◽  
Bao Guo Zhang
Keyword(s):  
Silicate Glass ◽  
Crystallization Behavior ◽  
Glass Network ◽  
Magnesium Silicate ◽  
Ceramic Fiber ◽  
Structure And Properties ◽  
Viscosity Curve ◽  
Calcium Magnesium ◽  
Lower Temperature ◽  
Silicate Ceramic

Structure, viscosity and crystallization behavior of CaO-MgO-SiO2 ceramic fiber with Nd2O3 were investigated by DTA, XRD and FTIR techniques. The results show that the addition of Nd2O3 enhanced the fiberization by extending the viscosity curve of the glass melt to lower temperature and improved the melt fiberizability. With the reinforcement of silicate glass network by Nd3+, the precipitation of crystals in fibers was inhibited at high temperatures.

scholarly journals Study on the Effect of Different Fe2O3/ZrO2 Ratio on the Properties of Silicate Glass Fibers

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Jianxun Liu ◽  
Jianping Yang ◽  
Haibin Huo ◽  
Liang Lei ◽  
Ying Cui ◽  
...  
Keyword(s):  
High Temperature ◽  
Silicate Glass ◽  
Glass Fibers ◽  
Strength Loss ◽  
Wire Drawing ◽  
Alkali Resistance ◽  
Drawing Process ◽  
Scanning Calorimetry ◽  
The Poor ◽  
Melting Properties

A series of silicate glass fibers with different ratios of Fe2O3/ZrO2 were prepared, and their corrosion resistance, mass loss, and strength loss were characterized. The crystallization and melting properties of the fibers were analyzed by differential scanning calorimetry (DSC), high temperature viscometer, and high temperature microscope. The results show that the deformation temperature, sphere temperature, hemisphere temperature, and crystallization temperature of the fiber initially decrease and then increase with the increase of Fe2O3/ZrO2 ratio, while the molding temperature decreases with the increase of the ratio of Fe2O3/ZrO2. When the ratio is close to 1 : 1, its alkali resistance is almost same as that of AR-glass fiber, and the drawing process performance is better. However, with the increase of the ratio, its alkali resistance continues to decline and the poor wire drawing performance is not conducive to the drawing operation.

scholarly journals Strontium-substituted calcium magnesium silicate single crystals for high-temperature piezoelectric applications

2020 ◽  
Vol 128 (3) ◽  
pp. 130-134
Author(s):  
Hiroaki TAKEDA ◽  
Hiraku KUSAKABE ◽  
Haruki USUI ◽  
Takuya HOSHINA ◽  
Takaaki TSURUMI ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
Magnesium Silicate ◽  
Calcium Magnesium

Influence of Network Structure on Dynamic Mechanical Properties of Cross-Linked Polystyrene / Glass Fiber Composites

2009 ◽  
Vol 79-82 ◽  
pp. 151-154 ◽  
Author(s):  
Quan Yao Zhu ◽  
Fei Wu ◽  
Wen Chen
Keyword(s):  
Glass Fiber ◽  
Network Structure ◽  
Glass Fibers ◽  
Crosslinking Density ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Glass Fiber Composites ◽  
Glass Fiber Reinforced ◽  
The Matrix ◽  
Surface Modified

The cross-linked polystyrene prepolymer was synthesized with divinylbenzene (DVB) as crosslinker via free-radical crosslinking copolymerization (FCC) and used as the matrix materials for E-glass fiber reinforced composites. The surface modification was performed by treatment of E-glass fiber with γ-methacryloylpropyl trimethoxysilane (MPS) solution. Fourier transform infrared spectroscopy (FTIR) was used to identify the functional groups on the surface modified glass fibers. Dynamic mechanical thermal analysis (DMTA) of these composites revealed that the dynamic storage modulus (E′) was gradually enhanced with the increasing content of DVB (0~3.0 wt %) whereas the damping parameter (tanδ) peaks are lower and broader, indicating better load bearing capacity. Moreover, the Tg was shifted to higher temperature corresponding to the increasing of crosslinking density. Morphology of fracture surfaces for these composites showed different fiber-matrix interfacial adhesion which was mainly attributed to the variation of crosslinking network structure in the interface.

scholarly journals The Mechanical Properties and Damage Evolution of UHPC Reinforced with Glass Fibers and High-Performance Polypropylene Fibers

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2455
Author(s):  
Jiayuan He ◽  
Weizhen Chen ◽  
Boshan Zhang ◽  
Jiangjiang Yu ◽  
Hang Liu
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Damage Evolution ◽  
High Performance ◽  
High Performance Concrete ◽  
Glass Fibers ◽  
Ultra High Performance Concrete ◽  
Concrete Damaged Plasticity ◽  
The Difference ◽  
Experimental Values

Due to the sharp and corrosion-prone features of steel fibers, there is a demand for ultra-high-performance concrete (UHPC) reinforced with nonmetallic fibers. In this paper, glass fiber (GF) and the high-performance polypropylene (HPP) fiber were selected to prepare UHPC, and the effects of different fibers on the compressive, tensile and bending properties of UHPC were investigated, experimentally and numerically. Then, the damage evolution of UHPC was further studied numerically, adopting the concrete damaged plasticity (CDP) model. The difference between the simulation values and experimental values was within 5.0%, verifying the reliability of the numerical model. The results indicate that 2.0% fiber content in UHPC provides better mechanical properties. In addition, the glass fiber was more significant in strengthening the effect. Compared with HPP-UHPC, the compressive, tensile and flexural strength of GF-UHPC increased by about 20%, 30% and 40%, respectively. However, the flexural toughness indexes I5, I10 and I20 of HPP-UHPC were about 1.2, 2.0 and 3.8 times those of GF-UHPC, respectively, showing that the toughening effect of the HPP fiber is better.

scholarly journals A Fatigue Damage Model for Life Prediction of Injection-Molded Short Glass Fiber-Reinforced Thermoplastic Composites

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2250
Author(s):  
Mohammad Amjadi ◽  
Ali Fatemi
Keyword(s):  
Injection Molding ◽  
Glass Fiber ◽  
Fatigue Damage ◽  
Life Prediction ◽  
Glass Fibers ◽  
Damage Model ◽  
Fiber Reinforced ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Short Glass

Short glass fiber-reinforced (SGFR) thermoplastics are used in many industries manufactured by injection molding which is the most common technique for polymeric parts production. Glass fibers are commonly used as the reinforced material with thermoplastics and injection molding. In this paper, a critical plane-based fatigue damage model is proposed for tension–tension or tension–compression fatigue life prediction of SGFR thermoplastics considering fiber orientation and mean stress effects. Temperature and frequency effects were also included by applying the proposed damage model into a general fatigue model. Model predictions are presented and discussed by comparing with the experimental data from the literature.

scholarly journals Enhanced Interfacial Shear Strength and Critical Energy Release Rate in Single Glass Fiber-Crosslinked Polypropylene Model Microcomposites

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2552 ◽  
Author(s):  
Uwe Gohs ◽  
Michael Mueller ◽  
Carsten Zschech ◽  
Serge Zhandarov
Keyword(s):  
Shear Strength ◽  
Electron Beam ◽  
Energy Release Rate ◽  
Glass Fiber ◽  
Release Rate ◽  
Interfacial Shear Strength ◽  
Glass Fibers ◽  
Critical Energy ◽  
Interfacial Shear ◽  
Critical Energy Release Rate

Continuous glass fiber-reinforced polypropylene composites produced by using hybrid yarns show reduced fiber-to-matrix adhesion in comparison to their thermosetting counterparts. Their consolidation involves no curing, and the chemical reactions are limited to the glass fiber surface, the silane coupling agent, and the maleic anhydride-grafted polypropylene. This paper investigates the impact of electron beam crosslinkable toughened polypropylene, alkylene-functionalized single glass fibers, and electron-induced grafting and crosslinking on the local interfacial shear strength and critical energy release rate in single glass fiber polypropylene model microcomposites. A systematic comparison of non-, amino-, alkyl-, and alkylene-functionalized single fibers in virgin, crosslinkable toughened and electron beam crosslinked toughened polypropylene was done in order to study their influence on the local interfacial strength parameters. In comparison to amino-functionalized single glass fibers in polypropylene/maleic anhydride-grafted polypropylene, an enhanced local interfacial shear strength (+20%) and critical energy release rate (+80%) were observed for alkylene-functionalized single glass fibers in electron beam crosslinked toughened polypropylene.

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