نتایج جستجو برای: acrylic polymer

تعداد نتایج: 101376  

2001
James E. Brown J. E. Brown

In recent decades synthetic polymeric materials, because of their unique physical properties, have rapidly replaced more traditional materials such as steel and nonferrous metals, as well as natural polymeric materials such as wood, cotton, and natural rubber. However, one weak aspect of synthetic polymeric materials compared with steel and other metals is that these materials are combustible u...

2006
Janaina Habib Jorge Eunice Teresinha Giampaolo Carlos Eduardo Vergani Ana Lúcia Machado Ana Cláudia Pavarina Iracilda Zeppone Carlos

INTRODUCTION Most denture base acrylic resins have polymethylmethacrylate in their composition. Several authors have discussed the polymerization process involved in converting monomer into polymer because adequate polymerization is a crucial factor in optimizing the physical properties and biocompatibility of denture base acrylic resins. To ensure the safety of these materials, in vitro cytoto...

Journal: :Nanoscale 2013
Farid Khelifa Youssef Habibi Philippe Leclère Philippe Dubois

Ultrathin films containing a high fraction of cellulose nanowhiskers embedded in an acrylic-based polymer matrix were successfully prepared by a shear-convective assembly method. Their morphological, chemical and physical properties were examined by AFM Peak Force Tapping, Ellipsometry, contact angle and X-ray photoelectronic spectroscopy (XPS). Smooth, stable, robust and hydrophobic ultrathin ...

2007
D Jones

~olwnerisation, determined whether the emulsion would form Laboratory results show that by optimising the polymer type and stabiliser system, emulsions can be produced which, when diluted with water and mixed into sands or soils with a high clay content, can produce thick aggregates with high load bearing and water holdout characteristics. Unconfined compressive strength (UCS) and water uptake ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور 1386

چکیده ندارد.

2010
Yong Li Changxin Chen Jiang-Tao Li Song Zhang Yuwei Ni Seng Cai Jie Huang

An efficient electromagnetic shielding composite based on multiwalled carbon nanotubes (MWCNTs)-filled styrene acrylic emulsion-based polymer has been prepared in a water-based system. The MWCNTs were demonstrated to have an effect on the dielectric constants, which effectively enhance electromagnetic shielding efficiency (SE) of the composites. A low conductivity threshold of 0.23 wt% can be o...

Journal: :Lab on a chip 2010
Jesse Greener Wei Li Judy Ren Dan Voicu Viktoriya Pakharenko Tian Tang Eugenia Kumacheva

We report a cost-efficient and easy to implement process for fabricating microfluidic reactors in thermoplastic materials. The method includes (i) the fabrication of an imprint template (master), which consists of a photoresist deposited on a metal plate; (ii) the thermoembossing of the reactor features into polymer sheets; (iii) the activation of the embossed and planar thermoplastic surfaces;...

Journal: :Water Air and Soil Pollution 2023

Abstract Six biofilm carriers with different polymer were studied in fixed-film systems under anoxic conditions. Different media of polymers influence wastewater treatment performance. The aim this study was to investigate polymeric materials, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), high-density (HDPE), and polymethyl methacrylate (acrylic), that affect b...

Journal: :Polymers 2021

The incorporation of carbon-based nanostructures into polymer matrices is a relevant strategy for producing novel antimicrobial materials. By using nanofillers different shapes and sizes, polymers with characteristics, nanocomposites synergistic properties can be obtained. This article describes the state art in field polymeric reinforced graphene its derivatives such as oxide reduced oxide. Ta...

Journal: :Journal of Renewable Materials 2023

In this study, acrylic acid was used as a neutralizer to prepare bio-based WPU with an interpenetrating polymer network structure by thermally induced free radical emulsion polymerization. The effects of the content on properties resulting waterborne polyurethane-poly (acrylic acid) (WPU-PAA) dispersion and films were systematically investigated. results showed that cross-linking density polyme...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید