This study was carried out to achieve the nonisothermal crystallization kinetics of Poly(Propylene) (PP) and poly(propylene)/nano Talc (PP/nt) nanocomposite were investigated by differential scanning calorimetry (DSC) with various cooling rates. The polymer PP and nano Talc with different % compounded by HAAKE Rheocord extruder. In order to improve the polyolefin nanocomposite formation by melt processing the use of an additional compatibilizer has been proposed. preferably for a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler such as for example a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) a dispersing agent prepared by controlled free radical polymerization (CFRP). The degree of crystalinity of the talcfilled PP nano composite were calculated with the help of the ratio of the area under the cooling curve (heat of fusion ∆H) with respect to the area under 100 % crystalline PP material. The Avrami analysis modified by previous research was used to describe the nonisothermal crystallization process of PP and PP/Talc very well. The values of half-time and Z c showed that the crystallization rate increased with increasing cooling rates for both PP and PP/Talc nanocomposite, but the crystallization rate of PP/Talc nanocomposite was faster than that of PP at a given cooling rate. The activation energies were estimated by the Kissinger method, and the values were 242, 239, 234 and 229 kJ/mol for PP and PP/NT 1%, 3%, 5% nanocomposite, respectively. PP/NT nanocomposite could be easily fabricated as original PP, although the addition of nano Talc might accelerate the overall nonisothermal crystallization process.

Thermoplastic Starch blend were obtained using urea plasticized starch and HDPE. The effect of plasticized starch (0-25 wt % TPS) on the Mechanical behavior of the thin sheet are discussed. The Performance of the sheet is explained on the basis of Mechanical, Structure and Surface Morphological and Biodegradable behavior of the blend. The TPS blend exhibit good Mechanical strength Particular 0 to 10 % TPS blend. After 10% batches there was a significant decrement change in Mechanical Response. Dynamic Mechanical Analysis (DMA) tests are carried out to investigate the viscoelastic deformation of HDPE / TPS Blends with different (0 to 25%) loading of Modified Starch particles. It has been observed that when HDPE filled with Thermoplastic Starch particles the stiffness decrease with increase of TPS content and very little change in Tg was obtained.The performance investigated due to the Strong compatible phage interaction between TPS and compatibilized HDPE matrix phage and plasticizer (urea). Urea brought out a optimization effect in deformation, retrogadation and change in physical, chemical, mechanical, thermal behavior of dry starch. The mechanical strength decreased proportionally with TPS Percentage increases. But Biodegradability performance increases with increasing percentage of TPS in the blend. This output is come out due to disintegration of TPS Structural Molecular Phase.

The important component of personal protective equipment is a mask. Mask is more important in a pandemic because it safeguards our life by stopping the spreading of the Coronavirus by entrapping the droplets from the corona affected person to enter into the wearer’s nose. Many types of masks are available such as non-woven mask, reusable mask, N95 mask and cloth mask etc. The majority of commercial masks are non-woven masks which are made up of polypropylene fibre. The main drawback of non-woven masks is their discomfort due to lack of breathability. This problem is solved by utilizing natural fibres as one of the raw material in non-woven and using them in the mask. Bamboo fibre is a natural celluloid fibre having good comfort properties with antimicrobial properties. Hence an attempt is made in this review article to examine the important properties of bamboo fibre and to evaluate its potential as a protective barrier material in non-woven face masks.