The polymers used in plastics are generally harmless. However, they are rarely used in pure form. In almost all commercial plastics, they are "compounded" with monomeric ingredients to improve their processing and end-use performance. In order of total volume used, these monomeric additives may be classified as follows: reinforcing fibers, fillers, and coupling agents; plasticizers; colorants; ...

Waste fibers produced from manufacturing processes are a byproduct commonly deposited in storing yards and/or landfills and thus results in many serious environmental problems in Iran. If these waste materials could be advantageously put to practical use in any application, it would reduce the burden on the environment and landfills. This paper compares the performance of the stone matrix aspha...

A variety of nano-carriers, nano-particles, nano-fibers, nano-tubes etc. have displayed greater competence to mimic nanoscale environment for the enzyme as compared to microand macro-environments provided by traditional support carriers that have been commonly employed for enzyme immobilization. The porous structured beads (silica, alginate etc.), membranes and fibers (>100 μm) have some inhere...

The importance of earthen construction materials lies in their widespread availability combined with a low embodied energy. Chemical stabilizers are commonly used to improve durability and mechanical performance. main drawbacks the high environmental impact production, loss recyclability, possible reduction raw earth’s hygrothermal properties. Historically stabilization was achieved by use diff...

Abstract N -Methylated derivatives of α-tocopheramine, which have preliminarily been shown to good performance as stabilizers cellulose solutions in ionic liquids for production cellulosic manmade fibers, not accessible sufficient amounts by green syntheses. In this study, the -methyl-, , -dimethyl-, and -trimethylammonium α-tocopheramine were synthesized fully analytically characterized. The p...

Volume change of expansive soils is a challenging issue, which affects various engineering structures all over the world. Consequently, we need environmentally-friendly and cost-effective soil stabilizers to address challenges related soils. The utilization natural fibers allows for reduction in environmental impact since they are renewable biodegradable raw materials. Moreover, current article...

Spinning of cellulosic fibers requires the prior dissolution cellulose. 3-Alkyl-1-methylimidazolium ionic liquids have proven to be suitable solvents for that purpose, but degradation cellulose in spinning dope can severe. Suitable stabilizers are therefore required prevent degradation, do not adversely affect spinnability or long-term yellowing behavior fibers. A group twelve renewables-based ...

Abstract Propyl gallate (PG, gallic acid propyl ester, Tenox®) is a very frequently used stabilizer and antioxidant in food material applications, also on large scale the Lyocell process to stabilize cellulose spinning dopes. In present study we have investigated fate of PG under classical conditions (cellulose dissolved N -methylmorpholine- -oxide monohydrate at temperatures above 80 °C) by me...

In this paper, for a compact Lie group action, we prove the anomaly formula and functoriality of equivariant Bismut-Cheeger eta forms with perturbation operators when family index vanishes. order to them, extend Melrose-Piazza spectral section its main properties case introduce version Dai-Zhang higher flow arbitrary-dimensional fibers. Using these results, construct new analytic model differen...

INTRODUCTION Bipolar disorder (BD) is a prevalent, comorbid, and impairing condition. Potential predictors of response to pharmacological treatment are object of continuous investigation in patients with BD. The present naturalistic study was aimed to assess clinical features and long-term response to mood stabilizers in a sample of bipolar subjects with different ages at onset. METHODS The s...