Heat-keeping property of plastic materials as a covering of plastic tunnels

14 Lightweight Plastic Materials

Fiber reinforced plastic composites using recycled materials

This work investigates the feasibility of using recycled high density polyethylene (rHDPE), recycled polypropylene (rPP) and old newsprint fiber (ONP) to manufacture fiber reinforced composites. The boards were made through air-forming and hot press. The effects of the fiber loading and coupling agent content on tensile, flexural, internal bond properties and water absorption and thickness swel...

Prediction of Diffusion Coefficients in Plastic Materials

Plastics properties can be tailored through control of their syntheses and processing to fit every desired application, packaging beeing a major one. Measurable residual amounts or conversion products from the many different raw materials and processing aids used in the various plastic synthesis processes can remain in the finished material along with many chemically different additives which a...

Machining of Fibre Reinforced Plastic Composite Materials

Fibre reinforced plastic composite materials are difficult to machine because of the anisotropy and inhomogeneity characterizing their microstructure and the abrasiveness of their reinforcement components. During machining, very rapid cutting tool wear development is experienced, and surface integrity damage is often produced in the machined parts. An accurate selection of the proper tool and m...

Plastic Surgery of the Breast: Keeping the Nipple Sensitive

INTRODUCTION Since its inception, reduction mammaplasty has matured considerably. Primary evolution in clinical research and practice has focused on preserving tissue viability. Surgery involves preserving not only tissue viability but also function and sensation. The nipple serves as the sensate unit of the breast and is a valuable part of women's psychological and sexual health, making preser...