Results 31 to 40 of about 490,434 (379)

Research and application of polypropylene: a review

open access: yesDiscover Nano
Polypropylene (PP) is a versatile polymer with numerous applications that has undergone substantial changes in recent years, focusing on the demand for next-generation polymers.
Md. Tanvir Hossain   +6 more
semanticscholar   +1 more source

Preparation and characterization of bis-[1,3,5]triazinyl diazenes and their utilization as flame retardants in polypropylene films [PDF]

open access: yes, 2014
A series of bis-[1,3,5]triazinyl diazenes and two metal complexes thereof were synthesized and tested as new flame retardants in polypropylene films. It was observed that electron withdrawing triazinyl ring substituents (i.e.
Aelmans   +40 more
core   +1 more source

Determination of the Optimal Polypropylene Fiber Addition to the Dense Bituminous Mixtures by the Aid of Mechanical and Optical Means

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
Polypropylene fibers are completely native modifiers and they do not have any dependence on abroad in case of technology. When viewed from this point, the modification of bituminous binders with polypropylene fibers is a very important step for our ...
Serkan Tapkin, Şenol Özcan
doaj   +1 more source

The co-pyrolysis of flame retarded high impact polystyrene and polyolefins [PDF]

open access: yes, 2007
The co-pyrolysis of brominated high impact polystyrene (Br-HIPS) with polyolefins using a fixed bed reactor has been investigated, in particular, the effect that different types brominated aryl compounds and antimony trioxide have on the pyrolysis ...
Bhaskar, T.   +5 more
core   +1 more source

Comparative study of Polypropylene versus Parietex composite®, Vicryl® and Ultrapro® meshes, regarding the formation of intraperitoneal adhesions [PDF]

open access: yesActa Cirúrgica Brasileira, 2017
Purpose: To compare the polypropylene mesh (Marlex®) to Vicryl®, Parietex composite® and Ultrapro® meshes to assess the occurrence of adhesions in the intraperitoneal implantation.
Maria de Lourdes Pessole Biondo-Simões   +8 more
doaj   +1 more source

Shear behavior of RC beams prepared with basalt and polypropylene fibers

open access: yesCase Studies in Construction Materials, 2022
Basalt and polypropylene fibers are relatively cheap, durable, and corrosion-resistant materials, and they can increase the shear strength of reinforced concrete (RC) beams. Although recent studies investigated the mechanical behavior of fibrous concrete,
Yasmin Murad, Haneen Abdel-Jabbar
doaj   +1 more source

Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation [PDF]

open access: yes, 2013
Analysis of volatile organic compounds (VOCs) during PP thermal oxidation under three oxygen partial pressures (0%, 21% and 100% of atmospheric pressure) at 140 C was performed by proton transfer reaction coupled with Fourier transform ion cyclotron ...
COLIN, Xavier   +6 more
core   +4 more sources

Research on Static Triaxial Mechanical Properties of New CementSoil Reinforced with Polypropylene Fiber

open access: yesAdvances in Materials Science and Engineering, 2014
Through the laboratory test, the mechanical properties of cementsoil with adding desulfurization gypsum, fly ash, and polypropylene fiber were studied. Three different percentages (0%, 0.5%, and 1.0%) of polypropylene fiber were mixed into new cementsoil
Qiang Wang   +4 more
doaj   +1 more source

Real-world study of the leakage of two types of infusion bags in multicenter pharmacy intravenous admixture service (PIVAS)

open access: yesFrontiers in Pharmacology, 2023
Background: This study sought to analyze the leakage rate, economic loss caused by leakage, leakage reasons, and usage of upright polypropylene infusion bags and non-polyvinyl chloride (PVC) infusion bags, two types of closed intravenous infusion ...
Yanchao Yin   +6 more
doaj   +1 more source

Mechanical properties of polypropylene fiber reinforced concrete short columns under freeze-thaw cycles [PDF]

open access: yesArchives of Civil Engineering
To investigate the effect of polypropylene fibers on the mechanical properties of concrete structures in cold regions, obtain an appropriate amount of polypropylene fiber content, and improve the frost resistance of the structure, freeze-thaw cycle tests
Zhenyu Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy