Effect of Screw-Axial Vibration on Structure and Properties of Short Glass Fiber Reinforced High-Density Polyethylene Composites

2007 ◽  
Author(s):  
Zhang Xiao-ming ◽  
Qu Jin-ping ◽  
Wu Hong-wu
Keyword(s):  
Glass Fiber ◽  
High Density Polyethylene ◽  
High Density ◽  
Structure And Properties ◽  
Fiber Reinforced ◽  
Axial Vibration ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Short Glass ◽  
Polyethylene Composites

scholarly journals The Structure and Performance of Short Glass Fiber/High-Density Polyethylene/Polypropylene Composite Pipes Extruded Using a Shearing–Drawing Compound Stress Field

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1323 ◽  
Author(s):  
Yi Yuan ◽  
Changdong Liu ◽  
Meina Huang
Keyword(s):  
Tensile Strength ◽  
Stress Field ◽  
Glass Fiber ◽  
High Density Polyethylene ◽  
High Density ◽  
Fiber Reinforced ◽  
Polypropylene Composite ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Short Glass

Glass fiber reinforced polyolefin composite materials have many advantages regarding their performance and have been widely used in many fields. However, there are few reports on the simultaneously bidirectional self-enhancement of glass fiber reinforced polyethylene/polypropylene composite pipe. To self-reinforce the pipe’s circular and axial properties simultaneously, short glass fiber reinforced high-density polyethylene/polypropylene (SGF/HDPE/PP) pipes were extruded using a shearing–drawing two-dimensional compound stress field pipe-extrusion device. The effects of the rotating speed of the rotating shear sleeve on the orientation, heat behavior, microstructure, and tensile strength of the pipe were investigated in this paper. The microstructure was observed using scanning electron microscopy (SEM), and the crystal diffraction was analyzed using a polycrystalline X-ray diffractometer (WAXD), the heat behavior was measured using a differential scanning calorimeter (DSC), and the tensile strength was tested using a universal electronic tensile testing machine. The results showed that the shear induction effect induced by the shear rotating promoted the formation of the oriented structure of the crystal plate and SGFs along the circular and axial directions of the pipe simultaneously. Furthermore, it increased the crystallinity of the system, and self-improved the pipe’s circular and axial tensile strength at the same time.

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.

Material Selection and Application of Abrasive-Liquid Device Sealing Bush

2011 ◽  
Vol 127 ◽  
pp. 110-114
Author(s):  
Rui Zeng ◽  
Chang Long Du ◽  
Jing Zhao ◽  
Rui Xu
Keyword(s):  
Glass Fiber ◽  
Abrasive Water Jet ◽  
Fiber Reinforced ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Water Jet Cutting ◽  
Weight Content ◽  
Abrasive Water Jet Cutting ◽  
Cutting System ◽  
Short Glass

In order to make the switch valve in abrasive-liquid device of premixed abrasive water jet cutting system work normally, the sealing bush which ensures the pressure constant and the switch smooth is needed. The structure, material and craft of the switch valve sealing bush are studied in this paper. The different weight content of short glass fiber reinforced nylon is tested in the environment of no lubricant, water lubricant and oil lubricant. The result shows that in oil lubricant environment, the 33% weight content of short glass fiber reinforced nylon composites have the best capabilities and the least resistance of friction. The experimental result proves that the sealing bush made by the prepared short glass fiber reinforced nylon composites can meet the require of the premixed abrasive water jet cutting system, according to which the sealing bush is producted and assembled to the abrasive-liquid device.

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