scholarly journals Tribological and Mechanical Behaviour of the Polymer Matrix Composite Reinforced with Ceramics Used as Implant Material

2020 ◽  
Vol 9 (4) ◽  
pp. 2101-2104
Keyword(s):  
Polymer Matrix ◽  
Complex Shape ◽  
Soft Tissues ◽  
Polymer Matrix Composites ◽  
High Strength ◽  
Polymer Matrix Composite ◽  
Medical Applications ◽  
Light Weight ◽  
Matrix Composites ◽  
Suitable Material

Recently, leading to its various attractive properties, Polymer matrix composites are suitable material in medical applications. This includes a light weight to high strength, a simple and complex shape easy to process. This paper describes the effect of Alumina, CaCO3 , and TiO2 reinforcements with bio polymer UHMWPE matrix. The samples were fabricated by injection molding machines with different particle reinforcement percentages. On prepared samples, various experiments have been carried out, viz tensile, bending, impact, hardness, and wear. Samples were developed according to the ASTM standard. Polymer matrix composites of 65% LDPE + 5% TiO2 + 15% Al2O3 + 15% CaCO3 is suitable biomaterial candidate. Thus, it can be used in an orthopedic approach applied on hard or soft tissues.

scholarly journals Plasma Nanocoatings Developed to Control the Shear Strength of Polymer Composites

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1188 ◽  
Author(s):  
Zvonek ◽  
Sirjovova ◽  
Branecky ◽  
Plichta ◽  
Skacel ◽  
...  
Keyword(s):  
Shear Strength ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Glass Fibers ◽  
Matrix Composites ◽  
Suitable Material ◽  
Oxygen Fraction ◽  
Short Beam ◽  
Beam Shear ◽  
Polyester Composite

All reinforcements for polymer-matrix composites must be coated with a suitable material in the form of a thin film to improve compatibility and interfacial adhesion between the reinforcement and the polymer matrix. In this study, plasma nanotechnology was used to synthetize such functional nanocoatings using pure tetravinylsilane (TVS) and its mixtures with oxygen gas (O2) as precursors. The plasma-coated glass fibers (GFs) were unidirectionally embedded in a polyester resin to produce short composite beams that were analyzed by a short-beam-shear test to determine the shear strength characterizing the functionality of the nanocoatings in a GF/polyester composite. The developed plasma nanocoatings allowed controlling the shear strength between 26.2–44.1 MPa depending on deposition conditions, i.e., the radiofrequency (RF) power and the oxygen fraction in the TVS/O2 mixture. This range of shear strength appears to be sufficiently broad to be used in the design of composites.

scholarly journals A Review of Prestressed Fibre-Reinforced Polymer Matrix Composites

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 60
Author(s):  
Raphael Olabanji Ogunleye ◽  
Sona Rusnakova
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Residual Stresses ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Moisture Absorption ◽  
Polymer Matrix Composites ◽  
Great Influence ◽  
Polymer Matrix Composite ◽  
Matrix Composites

This review examines various studies on reducing tensile stresses generated in a polymer matrix composite without increasing the mass or dimension of the material. The sources of residual stresses and their impacts on the developed composite were identified, and the different techniques used in limiting residual stresses were also discussed. Furthermore, the review elaborates on fibre-prestressing techniques based on elastically (EPPMC) and viscoelastically (VPPMC) prestressed polymer matrix composites, while advantages and limitations associated with EPPMC and VPPMC methods are also explained. The report shows that tensile residual stresses are induced in a polymer matrix composite during production as a result of unequal expansion, moisture absorption and chemical shrinkage; their manifestations have detrimental effects on the mechanical properties of the polymer composite. Both EPPMC and VPPMC have great influence in reducing residual stresses in the polymer matrix and thereby improving the mechanical properties of composite materials. The reports from this study provide some basis for selecting a suitable technique for prestressing as well as measuring residual stresses in composite materials.

scholarly journals Degree of Conversion of Polymer-matrix Composite assessed by FTIR Analysis

2013 ◽  
Vol 14 (1) ◽  
pp. 76-79 ◽  
Author(s):  
Mateus Rodrigues Tonetto ◽  
Marcelo Ferrarezi de Andrade ◽  
Shelon Cristina Souza Pinto ◽  
Alvaro Henrique Borges ◽  
Matheus Coelho Bandéca ◽  
...  
Keyword(s):  
Matrix Composite ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Polymer Matrix Composite ◽  
Degree Of Conversion ◽  
Matrix Composites ◽  
Ftir Analysis ◽  
Light Curing ◽  
Post Hoc ◽  
Storage Times

ABSTRACT Aims and objectives The behavior of polymer-matrix composite is dependent on the degree of conversion. The aim of this study was to evaluate the degree of conversion of two resin cements following storage at 37°C immediately, 24 and 48 hours, and 7 days after light-curing by FTIR analysis. Materials and methods The specimens were made in a metallic mold and cured with blue LED with power density of 500 mW/ cm2 for 30 seconds. The specimens were pulverized, pressed with KBr and analyzed with FTIR following storage times. Statistical analysis used ANOVA (two-way) and Tukey's post hoc. Results To the polymer-matrix composites between 24 and 48 hours does not show a significant increase (p > 0.05), however, the highest values were found after 7 days. Conclusion The polymer-matrix composites used in this study showed similarity on the degree of conversion and increased of according to the time of storage. How to cite this article Tonetto MR, Pinto SCS, de Nara Souza Rastelli A, Borges AH, Saad JRC, Pedro FLM, de Andrade MF, Bandéca MC. Degree of Conversion of Polymer-matrix Composite assessed by FTIR Analysis. J Contemp Dent Pract 2013;14(1):76-79.

scholarly journals Mechanical Property Evolution of Jute and E-glass fiber Hybrid Polymer Matrix composites

2019 ◽  
pp. 115-121
Author(s):  
Chanikya Kavvuru ◽  
M. L. S. Devakumar
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Light Weight ◽  
Matrix Composites ◽  
Jute Fibre ◽  
Hybrid Polymer ◽  
Compression Load ◽  
Property Evaluation

Now a day’s Natural Fibres Composites owing importance due to its Bio degradability, Light weight & Strength etc ., This project aims to investigate Mechanical Property evaluation of Jute fibre Eglass fiber, without chemical treatment and applied an compression load on the Jute fibre layers to be in uniform and Unidirectional. To evaluate the mechanical properties and weights of specimens are2 and 3 layeers taken, Epoxy & Hardener constant for all specimens. The Specimens prepared by Hand layup technique and specimen cuts with Manual Hacksaw frame and applied smooth filing to avoid notches during cutting. Testing’s for Mechanical properties evaluation used are tensile, and 3-Point Flexural testing’s on computerized UTM (INSTRON 3369). Hardness and Impact tests also performed per the ASTM standards.

Experimental Investigation of Polymer Matrix Composites Gears with Different Fiber Proportions

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
K. Senthilnathan ◽  
G. Suresh ◽  
T. Srinivasan ◽  
S. Ilaiyavel ◽  
Rajesh Ravi ◽  
...  
Keyword(s):  
Polymer Matrix ◽  
Power Transmission ◽  
Polymer Matrix Composites ◽  
Low Cost ◽  
Polymeric Materials ◽  
Wear Testing ◽  
Gear Pump ◽  
Light Weight ◽  
Matrix Composites ◽  
Essential Components

Nowadays many of the conventional materials are effectively replaced by composite materials, because of their light weight to stiffness ratio. Gears are the very essential components in mechanical power transmission, and drive in the most industrial rotating machinery. Polymer gears are used in motion and power transmission under different loads and speeds. Gears are generally made from metallic materials but recently advanced polymeric materials were developed because of low cost, light weight, high strength and improved performance of the system. Nylon, polymers, acetal and derlin are the structural polymeric materials used in printing and robotics, mechanical machines such as washing machines, sugarcane crushing machine and gear pump that are used for power and speed transmission. The paper investigates the polymer matrix composites gear with different fiber proportions. The main objective is to make glass fiber reinforced polymer gears using epoxy resin with various proportions of E-glass CSM (5%, 10%, 15%, 20%). The work investigates the wear testing of polymer gears of different proportions with metal gear using gear testing rig. The paper focused on morphology of fractured surfaces of polymer gears using scanning electron microscope. Finally, the gear is modeled in Catia software and imported to Ansys for static structural application.

Effective Utilization of Industrial Wastes for Preparing Polymer Matrix Composites

2019 ◽  
pp. 250-261
Author(s):  
Veerasimman Arumugaprabu ◽  
Deepak Joel Johnson R. ◽  
Pragatheeswaran R.
Keyword(s):  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Low Cost ◽  
Critical Factor ◽  
Green Manufacturing ◽  
High Strength ◽  
Industrial Wastes ◽  
Matrix Composites ◽  
Effective Utilization ◽  
Composite Product

The present industry scenario focuses on green manufacturing, in terms of effective reuse and recycling of the industrial wastes generated in enormous amount while preparing the product. The wastes also act as a threat to the society by causing various kinds of pollution. Therefore, the proper safe disposal of the same is a very critical factor. Most of the industries struggled with the enormous disposal of these wastes and finding ways for reuse and disposal. In this chapter, one such way of reuse of these wastes for making composite product is explored. Industrial wastes such as flyash and ricehusk used as fillers of varying weight percentages, 6%, 8%, 30%, 40%, and 50%, wt%, respectively, are reinforced with matrix. The prepared composites were subjected to flexural studies to know the load withstand ability. Results show that the incorporation of both fly ash and rice husk industrial wastes as filler into the polymer matrix increases the flexural strength. In addition, a low-cost product with high strength and good performance is obtained by adding this waste.

Study on Polymer Matrix Composites Used as Greenhouse Coverings: Optical Properties

2017 ◽  
Vol 863 ◽  
pp. 15-19
Author(s):  
Chyung Ay ◽  
Sun Wei Fong ◽  
Maw Tien Lee
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Properties ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Polymer Matrix Composite ◽  
Matrix Composites ◽  
Force Microscopy ◽  
Cladding Layer ◽  
Atomic Force ◽  
Covering Material

The greenhouse is widely used in agriculture, and its covering material is one of the most important factors that affect its performance. In summer, the inner temperature of the greenhouse is usually too high for people to cultivate plants. In this work, a polymer matrix composite (PMC) was developed to reduce the inner temperature of the greenhouse without affecting the photosynthesis for the growth of plants. The PMC developed in this study was made of LDPE with suitable additives such as pigments, metal oxide etc. The morphology of the covering layer made of the PMC was observed with the atomic force microscopy (AFM). The transmittance of visible light and NIR through the cladding layer was measured with an optical fiber detector and used as the primarily performance index. Finally a simulated greenhouse was used to verify the cooling effect of the cladding layer. Experimental results showed that the PMC developed in this study gave more temperature reduction than that of the commercial PE covering.

Sign in / Sign up

Export Citation Format

Share Document