Evaluation of the Influence of Additives on the Mechanical Properties and Photo-Stability of Glass Fiber Reinforced Epoxy Pipes Using Central Composite Design

2007 ◽  
Vol 26-28 ◽  
pp. 349-352
Author(s):  
Duangdao Aht-Ong ◽  
Chiravoot Pechyen ◽  
Duangduen Atong

A regression model was constructed to elucidate the effects of various additives on the UV- stability of glass fiber reinforced epoxy (GRE) pipes by applying a four-factor central composite design (CCD) statistical approach. Four factors investigated were amount of UVabsorber, antioxidant, carbon black, and flame retardant. The ANOVA showed that most mechanical properties except for the hardness were a strong function of the amount of UV-absorber, carbon black, and flame retardant, while quite independent of the antioxidant content within the studied range (0-10%w/w). The amount of UV-absorber and other additives seemed to exhibit significant interaction effect on mechanical properties. The photodegradation of the GRE pipes was performed by an outdoor exposure and under simulated condition in Q-UV Lamp. The GRE pipes containing 2% UV-absorber, 1% antioxidant, 3% carbon black, and 10% flame retardant revealed better mechanical properties compared to the others.

2021 ◽  
Author(s):  
Zhenya Zhang ◽  
Kunpeng Cai ◽  
Yaxin Guo ◽  
Xiaohua Liu ◽  
Suqin He ◽  
...  

Abstract Halogen-free flame retardants are ideal plastic additives that meet carbon neutral requirements. In this work, halogen free flame retardant with glass fiber reinforced PA66/PPO composites were prepared by using coated red phosphorus (FRM-150B) and phosphorus-silicon flame retardant (WR6002). The mechanical properties, heat resistance, friction and wear properties and flame retardancy were carried out to evaluate the performances of composites using as structural parts that require heat resistance, dimensional stability and accuracy. It was found that the friction coefficient and wear volume of the composites were improved with the contents of glass fiber increased, as a result, PA66/PPO composites was obtained with excellent comprehensive performance when the content of compatilizer is 7%, the glass fiber was 30%, the content of FRM is 8% and the phosphorous-silicon flame retardant is 16%. The flame retardant effect of FRM-150B and WR6002 in PA66/PPO was presented in the condensed phase, the results showed that the composite material with 16% WR6002 forms a carbon layer with excellent thermal stability. On the other hand, the mechanical properties of composites were hardly affected, has important prospects in automotive components and household appliances


2013 ◽  
Vol 750-752 ◽  
pp. 85-89
Author(s):  
Xing Luo ◽  
Min He ◽  
Jian Bing Guo ◽  
Bin Wu

The effects of brominated flame retardant which composed of decabromodiphenyl ethane (DBDPE) and antimonous oxide (AO) on long glass fiber reinforced polypropylene (LGFPP) were investigated by means of limiting oxygen index (LOI), vertical burning (UL-94), thermogravimetry analysis (TGA), and mechanical properties. With the increase of DBDPE-AO content, the LOI values of DBDPE-AO/LGFPP composites increased from 21 to 27.6, and when the content of DBDPE-AO was 16wt%, the composites passed the V-0 rating in UL-94 testing. The experimental results showed that the brominated flame retardant improved flame retardancy of LGFPP, which was proved by the TGA testing. Whats more, the mechanical properties of composites even improved compared with pure LGFPP.


2019 ◽  
Vol 61 (11) ◽  
pp. 1095-1100 ◽  
Author(s):  
Sivakumar Dhar Malingam ◽  
Kathiravan Subramaniam ◽  
Ng Lin Feng ◽  
Siti Hajar Sheikh MD Fadzullah ◽  
Sivaraos Subramonian

2020 ◽  
Vol 21 (12) ◽  
pp. 2915-2926
Author(s):  
Aimin Zhang ◽  
Guoqun Zhao ◽  
Jialong Chai ◽  
Junji Hou ◽  
Chunxia Yang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document