scholarly journals AN INVESTIGATION ON THE EFFECTS OF PROCESSING ON THE FIBER LENGTH AND MECHANICAL PROPERTIES OF COMPRESSION MOULDED GLASS FIBER REINFORCED POLYPROPYLENE COMPOSITES

2005 ◽  
Vol 29 (2) ◽  
pp. 1-9
Author(s):  
A.M. Yaacob ◽  
S.M. Sapuan ◽  
E. S. Zainudin ◽  
M. Ahmad ◽  
K. Z. M. Dahlan
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Fiber Length ◽  
Fiber Reinforced ◽  
Polypropylene Composites ◽  
Glass Fiber Reinforced

Crystallization and Mechanical Properties of Glass Fiber Reinforced Polypropylene Composites Molded by Rapid Heat Cycle Molding

2020 ◽  
Vol 21 (12) ◽  
pp. 2915-2926
Author(s):  
Aimin Zhang ◽  
Guoqun Zhao ◽  
Jialong Chai ◽  
Junji Hou ◽  
Chunxia Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Fiber Reinforced ◽  
Heat Cycle ◽  
Polypropylene Composites ◽  
Glass Fiber Reinforced

INJECTION MOLDING OF FLAT GLASS FIBER REINFORCED THERMOPLASTICS

2010 ◽  
Vol 24 (15n16) ◽  
pp. 2555-2560 ◽  
Author(s):  
KAZUTO TANAKA ◽  
TSUTAO KATAYAMA ◽  
TATSUYA TANAKA ◽  
AKIHIRO ANGURI
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Glass Fiber ◽  
Cross Section ◽  
Fiber Length ◽  
Flat Glass ◽  
Circular Cross Section ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Fiber Attrition

During an injection molding of composite materials, fiber attrition occurs and the average fiber length is reduced. In order to control the breakage of fibers and degradation of mechanical properties during processing, Flat glass Fiber (FF), that has oval cross-section shape, has been developed to use for glass fiber reinforced thermoplastic (GFRTP). Using FF as reinforcement of GFRTP has advantages as following: (1) Fluidity of FF is better than conventional Normal glass Fiber (NF) with 'circular' cross-section; (2) Fiber breakage during the injection molding process using FF is smaller than that using NF. In this study, the mechanical properties of FF and NF were compared for reinforcement of long fiber thermoplastics pellets (LFT pellets). We have also investigated the effect of screw design on fiber damage and the mechanical properties. The mechanical properties of specimens molded by FF reinforcement LFT (FF-LFT) pellets were superior to these of NF reinforcement LFT (NF-LFT) pellets. The former could give composites with higher fluidity and longer residual fiber length. Moreover, FF was able to strengthen injection-molded samples with higher fiber content than NF. Low shear type screw was effective to prevent the fiber attrition during plasticization process, hence leads to better mechanical properties of GFRTP

Investigation on Fabrication of Glass Fiber Reinforced Polypropylene by Recycled FRTP and their Properties

2013 ◽  
Vol 364 ◽  
pp. 727-733
Author(s):  
Jing Li Ma ◽  
Huan Lin Jin ◽  
Zheng Bing Cao ◽  
Shang De Wang ◽  
Jun Liang Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Glass Fiber ◽  
Raw Materials ◽  
Fiber Reinforced ◽  
Thermal Stabilities ◽  
Polypropylene Composites ◽  
Glass Fiber Reinforced ◽  
Screw Extrusion ◽  
Micro Structures

In this paper, glass fiber reinforced polypropylene composites have been successfully fabricated via double screw extrusion by using mechanical crushed leftover materials as the raw materials with maleic anhydride grafted polypropylene (PP-g-MAH) and γ-ammonia propyl-triethoxy silane (KH-550) as the compatilizer and coupling agent, respectively. The influences of the contents of PP-g-MAH and KH-550 on the micro-structures and crystallization as well as mechanical properties of the fabricated composites have been systematically investigated. The results showed that: the recycled raw materials were homogenously dispersed in the polymer matrix without obvious agglomerations; with adding the recycled raw materials and compatilizer, the crystallization behaviors of PP did not changed dramatically while their thermal stabilities were greatly improved; the tensile strength of the product increased by 14% while notched impact strength increased by 21% as the contents of PP-g-MAH and KH-550 were 10phr and 1phr, respectively.

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