It is well-known that evaporation of sessile drops with suspended particles like colloids and coffee powders can yield a variety of two-dimensional patterns depending on the particle shapes and internal flow patterns. Here we show that ordered three-dimensional structures can be built via evaporation of saline drops on highly hydrophobic substrates like pristine PP (polypropylene) with micropor...

Current studies on microplastic pollution mainly focus marine systems. However, few have investigated microplastics in an urban lake. This research intends to use lake (Songshan Lake) as example explore the characteristics of and principal component well heat map analysis discuss relationships between different shapes microplastics. According this study, average abundance surface water sediment...

Natural fibers have the ability to reinforce polymeric materials. In this work, sugar palm were added as a reinforcement agent polypropylene (PP) matrix form biocomposites. Flexural strength measurement in accordance with ASTM D790-17 was carried out on PP composites fiber content changed from 0 30 wt.% 5 steps. The flexural data show composition dependence maxima (52.09 MPa) obtained 15 fibers...

Different blends of a linear polypropylene (L-PP), long-chain branched (LCB-PP), and polyolefin elastomer (POE) are prepared foamed using core-back injection molding. The objective is to analyze the use POE LCB-PP as complementary strategies improve cellular polymers’ impact response. parameters then studied in molded plaques understand samples’ mechanical behavior. Parameters such interfacial ...

Polymers have been widely used to improve the performance of bitumen. Polypropylene (PP), one most common plastomer for bitumen modification, is utilized specially in roofing application adding up 30 wt% This article presents an investigation four different polypropylene (PP) polymers having differences tacticity (atactic and isotactic), molecular weight (Mw ~ 12 000 g/mol ~250 g/mol) functiona...

Each year about 50 Million tons polymer is processed to fibers worldwide [1]. Polymeric fibers are manufactured into all sorts of daily as well as industrial goods [2, 3]. The most prominent materials are thermoplastic among which poly(ethylene terephtalat) (PET), polyamides (PA) and polypropylene (PP) make up the largest fraction [4]. Other thermoplastic polymers such as poly(vinylidene fluori...

The migration behaviour of polymer additives in 17 polypropylene (PP) samples is described. These samples cover the major types of PP used in food packaging. The diffusion coefficients of additives with relatively small molecular masses, M(r) = 136 (limonene), as well as the migration of typical antioxidants used in PP up to M(r) = 1178 (IRGANOX 1010), were measured at different temperatures. I...

Microporous polypropylene (PP) nanocomposite membranes suitable for various applications such as energy storage, water purification, membrane separation, etc., were prepared by melt mixing of and natural rubber (NR) subsequently followed etching phase. Nanoparticles having spherical shape (Al2O3), irregular (TiO2), 2D platelet morphology (Cloisite 30 B (C–30 B)), used to the influence nanoparti...

Using the transport of ions in matter program which is TRIM that based on a Monte Carlo simulation method to calculate sputtering yield for polypropylene, was bombed with (N2, O2, and Ar) gas energy range (0.1-300) Kev different angles. It can be seen from results this study depends incident angle, energy, atomic number ions, surface binding elements make up polypropylene (pp) polypropylene. no...