Results 41 to 50 of about 13,959 (235)

The electrospinning of less common polyamides via direct and alternating current

open access: yeseXPRESS Polymer Letters, 2023
This paper presents a method for direct and alternating current electrospinning of polymeric solutions of three less common polyamides (nylons). Homopolyamide PA 8, heteropolyamide PA 6|9 and semi-aromatic amide (phthalamide) PA 6(3)T were dissolved in ...
Pavel Holec   +5 more
doaj   +1 more source

Evaluation of polyamide surgical mesh as an abdominal ventral implant in rabbits [PDF]

open access: yesActa Cirúrgica Brasileira, 2018
Purpose: To evaluate abdominal ventral wound healing by using a specific biomaterial, a handmade polyamide surgical mesh. Methods: A surgical incisional defect was made in ten rabbits to simulate a hernia in the ventral abdominal musculature.
Renata Gebara Sampaio Dória   +8 more
doaj   +1 more source

Avaliação da polaridade superficial de náilons por espectroscopia de fluorescência Evaluation of surface polarity of nylons by fluorescence spectroscopy

open access: yesPolímeros, 2005
Este trabalho avalia a polaridade superficial de cinco tipos de náilons: -6, -11, -6,6, -6,10, -6,12 usando a escala do pireno, py. Esses náilons podem ser classificados em duas categorias: AB (nálion-6 e -11) e AABB (nálion-6,6 e 6,10 e -6,12). A escala
Leonardo D. C. Baldi   +1 more
doaj   +1 more source

Recent Progress in Adipic Acid Synthesis Over Heterogeneous Catalysts

open access: yesFrontiers in Chemistry, 2020
Adipic acid is one of the most important feedstocks for producing resins, nylons, lubricants, plasticizers. Current industrial petrochemical process, producing adipic acid from KA oil, catalyzed by nitric acid, has a serious pollution to the environment,
Wenjuan Yan   +10 more
doaj   +1 more source

Nylon-6/rubber blends: 8. Influence of the molecular weight of the matrix on the impact behaviour [PDF]

open access: yes, 1994
Blends of nylon-6 with polybutadiene were prepared with comparable morphology and different molecular weights of the matrix. These specimens were tested using the notched Izod impact test and the notched tensile impact test.
Dijkstra, K.   +2 more
core   +2 more sources

Aplicaciones de los métodos computacionales al estudio de la estructura y propiedades de polímeros [PDF]

open access: yesPolímeros, 2003
En este trabajo se revisan las técnicas de simulación molecular más habituales y potentes para la descripción de los polímeros a escala atómica y molecular, las cuales se han clasificado en cuánticas o clásicas dependiendo de cómo se describen las ...
Carlos Alemán, Sebastián Muñoz-Guerra
doaj   +1 more source

Comparative study of tissue reactivity to n-butyl-2-cyanoacrylate and nylon monofilament thread on pericranium-cutaneous flaps in rats [PDF]

open access: yesActa Cirúrgica Brasileira, 2014
PURPOSE: To study the repair of pericranium-cutaneous flaps fixed with suture anchored in a skull bone tunnel or N-butyl-2-cyanoacrylate adhesive in Wistar rats with emphasis on the cellular inflammatory response and the production of types I and III ...
William César Cavazana   +3 more
doaj   +1 more source

Effect of Denture Cleanser on the Physico-Mechanical Properties of Injection-Molded Thermoplastic Polyamides Denture Base Material: A preliminary Study

open access: yesActa Stomatologica Croatica, 2023
Objectives: This study aimed to assess the color stability, surface roughness, and flexural properties of the injection-molded thermoplastic polyamide Vertex ThermoSens denture base resin following a 3-minute immersion in Polident 3-minute denture ...
Hazem Mofreh Altarawneh   +4 more
doaj   +1 more source

Low background techniques for the Borexino nylon vessels [PDF]

open access: yes, 2004
Borexino is an organic liquid scintillator underground detector for low energy solar neutrinos. The experiment has to satisfy extremely stringent low background requirements.
Pocar, A.
core   +3 more sources

Membranes of semicrystalline aliphatic polyamide nylon 4,6: Formation by diffusion-induced phase separation [PDF]

open access: yes, 1993
The preparation of membranes of nylon 4,6 by diffusion-induced phase separation (DIPS) using formic acid as a solvent and water as a nonsolvent was studied.
Bulte, A.M.W.   +5 more
core   +2 more sources

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