Results 81 to 90 of about 4,688 (166)

Obtención de espumas de poliuretano con materiales lignocelulósicos

open access: yes, 2020
Medellín
Porras Cárdenas, María Eugenia   +3 more
openaire   +2 more sources

Avaliação de custo-efetividade de dois tipos de curativos para prevenção de úlcera por pressão

open access: yesActa Paulista de Enfermagem, 2015
Resumo Objetivo : Analisar a relação custo-efetividade de dois tipos de curativos para a prevenção de úlcera por pressão na região sacral. Métodos : Pesquisa de análise secundária, comparativa, que incluiu 25 pacientes dos quais dez utilizaram a ...
Kelly Cristina Inoue   +1 more
doaj   +2 more sources

Characterization and Properties of Water-Blown Rigid Polyurethane Foams Reinforced with Silane-Modified Nanosepiolites Functionalized with Graphite. [PDF]

open access: yesMaterials (Basel), 2022
Santiago-Calvo M   +6 more
europepmc   +1 more source

Breve história das tintas antivegetativas [PDF]

open access: yes, 2007
Neste trabalho, os autores apresentam uma panorâmica geral sobre as tintas antivegetativas. Após a conveniente localização destas tintas no esquema de protecção anticorrosiva das obras vivas dos navios e/ ou outras estruturas móveis, fazem uma síntese ...
Almeida, Maria Elisabete   +2 more
core  

Vida útil de dos barnices para exteriores mediante intemperismo artificial en madera de aile, pino y encino

open access: yesRevista Chapingo: Serie Ciencias Forestales y del Ambiente, 2002
La principal función de los acabados para exteriores es proteger la madera contra los agentes del intemperismo, así como ayudar a mantener su apariencia.
J. C. Tamarit Urias   +3 more
doaj  

Sintesis de poliuretanos a partir de polioles obtenidos a partir del aceite de higuerilla modificado por transesterificación con pentaeritritol Polyurethanes sintetized of polyols obtained from castor oil modified by transesterification with pentaerythritol</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Química Nova</i>, 2008 </span><br><span class="r_content">Castor oil was reacted by transesterification with various percentages in mass of pentaerythritol to obtain different esters of pentaerythritol. Alternatively, glycerol was also used instead of pentaerythritol for the same reaction in order to establish ...</span><br><span class="r_sub"><i>Manuel F. Valero<span id="ma_6" style="display:none">, Jorge E. Pulido, Álvaro Ramírez, Zhengdong Cheng</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_6')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/cb845b3b31224c5f94e377eef3c8ac64" target="_blank" rel="nofollow" title="doaj.org/article/cb845b3b31224c5f94e377eef3c8ac64">doaj</a> </small>   <div id="more_6" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422008000800031" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422008000800031'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422008000800031)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_6')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.3390/polym13091418" target="_blank" rel="nofollow">Glycolysis of Polyurethanes Composites Containing Nanosilica.</a> <b><a href="https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC8125480&blobtype=pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Polymers (Basel)</i>, 2021 </span><br><span class="r_sub"><i>Del Amo J<span id="ma_7" style="display:none">, Borreguero AM, Ramos MJ, Rodríguez JF.</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_7')">+3 more</a></small></i></span><br><small><a href="https://europepmc.org/article/MED/33925763#free-full-text" target="_blank" rel="nofollow" title="europepmc.org/article/MED/33925763#free-full-text">europepmc</a> </small>   <div id="more_7" style="display:none"><a href="/sci_redir.php?doi=10.3390%2Fpolym13091418" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.3390/polym13091418'); alert('Copied the doi');">copy doi</a> <small>(10.3390/polym13091418)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_7')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://core.ac.uk/download/213560784.pdf" target="_blank" rel="nofollow">Aprovechamiento de residuos industriales de poliuretano termoestable en la elaboración de paneles para terminados constructivos, a partir de patente brasileña</a> <b><a href="https://repository.ucatolica.edu.co/bitstream/10983/22927/1/DOCUMENTO%20ESCRITO%20TRABAJO%20DE%20GRADO.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2017 </span><br><span class="r_content">Visita técnica internacionalPara implementarla en acabados constructivos en Colombia, teniendo en cuenta las normativas Brasileñas y Colombianas aplicadas para la caracterización de los aspectos técnicos que debe cumplir un acabado constructivo, el cual ...</span><br><span class="r_sub"><i>González-Gómez, Oscar Daniel<span id="ma_8" style="display:none">, Sánchez-Estrada, Juan Sebastián</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_8')">+1 more</a></small></i></span><br><small><a href="https://core.ac.uk/works/7595382" target="_blank" rel="nofollow" title="core.ac.uk/works/7595382">core</a> </small>   <br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1590/S0100-40422008000600030" target="_blank" rel="nofollow">Síntese e caracterização de dispersões aquosas de poliuretanos à base de copolímeros em bloco de poli(glicol etilênico) e poli(glicol propilênico) Synthesis and characterization of polyurethane aquous dispersions based on poly(ethylene glycol) and poly(propylene glycol) block copolymers</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Química Nova</i>, 2008 </span><br><span class="r_content">Non-polluting polyurethane aqueous dispersions, with 40% of solids content, were synthesized based on block copolymers of poly(ethylene glycol) and poly(propylene glycol) (PEG-b-PPG), with PEG hydrophilic segments content of 7 and 25%, poly(propylene ...</span><br><span class="r_sub"><i>Fernanda M. B. Coutinho<span id="ma_9" style="display:none">, Marcia C. Delpech, Cristiane C. Santos, Rosiléa B. L. Almeida</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_9')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/7186e50905fa4784bbe85dd66497f8c8" target="_blank" rel="nofollow" title="doaj.org/article/7186e50905fa4784bbe85dd66497f8c8">doaj</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422008000600030" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422008000600030'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422008000600030)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://core.ac.uk/download/153410958.pdf" target="_blank" rel="nofollow">I Encontro de Jovens Investigadores do Instituto Politécnico de Bragança: livro de resumos</a> <b><a href="http://bibliotecadigital.ipb.pt/bitstream/10198/10366/6/2015%20EJI%20Livro%20de%20Resumos.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2014 </span><br><span class="r_content">Encontro de Jovens Investigadores do Instituto Politécnico de Bragança: livro de ...</span><br><span class="r_sub"><i>Martins, Anabela (Coord.)</i></span><br><small><a href="https://core.ac.uk/works/39135284" target="_blank" rel="nofollow" title="core.ac.uk/works/39135284">core</a> </small>   <div id="more_10" style="display:none"><a href="https://bibliotecadigital.ipb.pt/bitstream/10198/14463/3/V%20EJI%20Livro%20de%20Resumos.pdf" target="_blank" rel="nofollow" title="bibliotecadigital.ipb.pt/bitstream/10198/14463/3/V%20EJI%20Livro%20de%20Resumos.pdf">bibliotecadigital.ipb.pt (pdf)</a><br> <a href="http://bibliotecadigital.ipb.pt/bitstream/10198/9816/3/2013%20EJI%20Livro%20de%20Resumos%20v4.pdf" target="_blank" rel="nofollow" title="bibliotecadigital.ipb.pt/bitstream/10198/9816/3/2013%20EJI%20Livro%20de%20Resumos%20v4.pdf">bibliotecadigital.ipb.pt (pdf)</a><br> <a href="http://bibliotecadigital.ipb.pt/bitstream/10198/14364/3/2016%20EJI%20Livro%20de%20Resumos.pdf" target="_blank" rel="nofollow" title="bibliotecadigital.ipb.pt/bitstream/10198/14364/3/2016%20EJI%20Livro%20de%20Resumos.pdf">bibliotecadigital.ipb.pt (pdf)</a><br> <a href="http://bibliotecadigital.ipb.pt/bitstream/10198/12021/3/2014%20EJI%20Livro%20de%20Resumos.pdf" target="_blank" rel="nofollow" title="bibliotecadigital.ipb.pt/bitstream/10198/12021/3/2014%20EJI%20Livro%20de%20Resumos.pdf">bibliotecadigital.ipb.pt (pdf)</a><br> </div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+4 more sources</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-polyurethanes/" class="suggestion"onclick="show_loader();"><b>polyurethanes</b></a><br/><a href="/q-poliuretano/" class="suggestion"onclick="show_loader();"><b>poliuretano</b></a><br/><a href="/q-polyurethane/" class="suggestion"onclick="show_loader();"><b>polyurethane</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-dispers%C3%B5es_aquosas/" class="suggestion"onclick="show_loader();"><b>dispersões aquosas</b></a><br/><a href="/q-aqueous_dispersions/" class="suggestion"onclick="show_loader();"><b>aqueous dispersions</b></a><br/><a href="/q-propriedades_mec%C3%A2nicas/" class="suggestion"onclick="show_loader();"><b>propriedades mecânicas</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-castor_oil/" class="suggestion"onclick="show_loader();"><b>castor oil</b></a><br/><a href="/q-nanocomposites/" class="suggestion"onclick="show_loader();"><b>nanocomposites</b></a><br/><a href="/q-montmorilonita/" class="suggestion"onclick="show_loader();"><b>montmorilonita</b></a><br/></div></div></div><div class="pagenav"><a href="/q-poliuretanos/p-8/" rel="nofollow"><b>previous</b></a>   <a href="/q-poliuretanos/p-7/" rel="nofollow">7</a>  <a href="/q-poliuretanos/p-8/" rel="nofollow">8</a>  <b>9</b>  <a href="/q-poliuretanos/p-10/" rel="nofollow">10</a>  <a href="/q-poliuretanos/p-11/" rel="nofollow">11</a>   <a href="/q-poliuretanos/p-10/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; 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