Conductive paints of polyaniline (PANT)/dodecyl benzene sulfonic acid (DBSA) composited with polystyrene (PS), polyester (PET) and polyurethane (PU) resin were prepared through a facile blending method. The extraction of PANI/DBSA from the aqueous reaction mixture was done by using a mixture of toluene and methyl ethyl ketone (MEK) (toluene : MEK=1: 1 v/v), Then, the electrical, thermal stability and tensile properties of the prepared conductive PANI/DBSA composite films were evaluated. Almost all of the PANI/DBSA-PS, -PET and -PU composite films were found to possess relatively good conductivity and low surface resistivity for an electrostatic discharge (ESD) even at low PANI/DBSA content. Even when the PANI/DBSA content in the PANI/DBSA-PS and - PET composite was 2.5 wt %, the electrical conductivity and surface resistivity were found to be 3.92 X 10 - 4 Scm -1 , 8.51x10 6 Ωcm -2 and 4.62 X 10 - 2 Scm -1 , 7.22 X 10 4 Ωcm -2 , respectively. Additionally these composite films exhibited good transparency. The highest conductivity (3.28 X 10 -1 Scm -1 ) of the composite films was obtained when the PANI/DBSA content in PANI/DBSA-PS composite was 25 wt%. PANI/DBSA-PS composite film possessed the best thermal stability and the PANI/DBSA-PU composite films showed the lowest thermal stability of all evaluated samples. On the other hand, PANI/DBSA-PET composite films possessed the most elasticity when the PANI/DBSA contents were 10 and 20 wt%. However, PANI/DBSA-PU composite film possessed the most elasticity when the content was 5 wt %. PANI/DBSA-PS composite films possessed the lowest elasticity.
以聚苯乙烯(PS)、聚酯(PET)和聚氨酯(PU)为原料，采用简便共混法制备了聚苯胺(PANT)/十二烷基苯磺酸(DBSA)导电涂料。采用甲苯与甲基乙基酮(MEK)的混合物(甲苯:MEK= 1:1 v/v)从水溶液中提取聚苯胺/DBSA，并对制备的聚苯胺/DBSA导电复合膜的电稳定性、热稳定性和拉伸性能进行了评价。几乎所有的聚苯胺/DBSA- ps、-PET和-PU复合膜在低聚苯胺/DBSA含量下也具有相对较好的导电性和较低的静电放电表面电阻率。当PANI/DBSA- ps和- PET复合材料中PANI/DBSA含量为2.5 wt %时，其电导率和表面电阻率分别为3.92 X 10 - 4 Scm -1、8.51x10 - 6 Ωcm -2和4.62 X 10 -2 Scm -1、7.22 X 10 - 4 Ωcm -2。此外，这些复合膜具有良好的透明性。当PANI/DBSA- ps复合材料中PANI/DBSA含量为25 wt%时，复合膜的电导率最高(3.28 X 10 -1 Scm -1)。聚苯胺/DBSA-PS复合膜的热稳定性最好，聚苯胺/DBSA-PU复合膜的热稳定性最差。另一方面，当PANI/DBSA含量为10%和20% wt%时，PANI/DBSA- pet复合膜具有最大的弹性。而PANI/DBSA-PU复合膜在含量为5 wt %时弹性最大。PANI/DBSA-PS复合膜的弹性最低。
{"title":"Polyaniline Conductive Paints using Polystyrene, Polyester and Polyurethane Resin made from Facile Blending Method","authors":"Masakazu Hosoda, N. Kuramoto","doi":"10.4011/SHIKIZAI.81.198","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.198","url":null,"abstract":"Conductive paints of polyaniline (PANT)/dodecyl benzene sulfonic acid (DBSA) composited with polystyrene (PS), polyester (PET) and polyurethane (PU) resin were prepared through a facile blending method. The extraction of PANI/DBSA from the aqueous reaction mixture was done by using a mixture of toluene and methyl ethyl ketone (MEK) (toluene : MEK=1: 1 v/v), Then, the electrical, thermal stability and tensile properties of the prepared conductive PANI/DBSA composite films were evaluated. Almost all of the PANI/DBSA-PS, -PET and -PU composite films were found to possess relatively good conductivity and low surface resistivity for an electrostatic discharge (ESD) even at low PANI/DBSA content. Even when the PANI/DBSA content in the PANI/DBSA-PS and - PET composite was 2.5 wt %, the electrical conductivity and surface resistivity were found to be 3.92 X 10 - 4 Scm -1 , 8.51x10 6 Ωcm -2 and 4.62 X 10 - 2 Scm -1 , 7.22 X 10 4 Ωcm -2 , respectively. Additionally these composite films exhibited good transparency. The highest conductivity (3.28 X 10 -1 Scm -1 ) of the composite films was obtained when the PANI/DBSA content in PANI/DBSA-PS composite was 25 wt%. PANI/DBSA-PS composite film possessed the best thermal stability and the PANI/DBSA-PU composite films showed the lowest thermal stability of all evaluated samples. On the other hand, PANI/DBSA-PET composite films possessed the most elasticity when the PANI/DBSA contents were 10 and 20 wt%. However, PANI/DBSA-PU composite film possessed the most elasticity when the content was 5 wt %. PANI/DBSA-PS composite films possessed the lowest elasticity.","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89371982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
One of the most important current challenges for paint manufacturers is the reduction of volatile organic compounds （ VOC ） in their formulations. As a potential compliant technology for VOC reduction, water borne clear coats are predicted to develop strongly over the coming years. It must be stated that any impairment of the light stabilising performance of these water borne clear coats is unacceptable in the automotive industry. Due to the lack of techniques for the effective and homogeneous incorporation of light stabilisers, which are in general hydrophobic substances, into water borne clear coats, new product forms addressing this issue have become mandatory. Progress has been made with the development of water compatible product forms of water insoluble hydrophobic additives by using a Novel Encapsulated Additives Technology （ NEAT ） micro encapsulation techniques. NEAT enables the development of water borne clear coats for automotive application that show the same performance level as current state of the art solvent borne systems. By this novel encapsulation technology, the best UVA’s and HALS are made available for use in aqueous systems. The easy incorporation of the NEAT light stabilizers requires no need for co-solvents. NEAT light stabilizers offer a permanent protection due to a high wash-out resistance and they do not show a negative influence on transparency and gloss.
{"title":"Improvement of the Light Stability of Automotive Water Borne Coatings: a Difficult Task","authors":"Tom Landuydt","doi":"10.4011/SHIKIZAI.81.437","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.437","url":null,"abstract":"One of the most important current challenges for paint manufacturers is the reduction of volatile organic compounds （ VOC ） in their formulations. As a potential compliant technology for VOC reduction, water borne clear coats are predicted to develop strongly over the coming years. It must be stated that any impairment of the light stabilising performance of these water borne clear coats is unacceptable in the automotive industry. Due to the lack of techniques for the effective and homogeneous incorporation of light stabilisers, which are in general hydrophobic substances, into water borne clear coats, new product forms addressing this issue have become mandatory. Progress has been made with the development of water compatible product forms of water insoluble hydrophobic additives by using a Novel Encapsulated Additives Technology （ NEAT ） micro encapsulation techniques. NEAT enables the development of water borne clear coats for automotive application that show the same performance level as current state of the art solvent borne systems. By this novel encapsulation technology, the best UVA’s and HALS are made available for use in aqueous systems. The easy incorporation of the NEAT light stabilizers requires no need for co-solvents. NEAT light stabilizers offer a permanent protection due to a high wash-out resistance and they do not show a negative influence on transparency and gloss.","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82399768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Topic of Conversation at the Western Corridor of the Yellow River","authors":"E. Tsuruta","doi":"10.4011/SHIKIZAI.81.80","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.80","url":null,"abstract":"","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76399603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hair Dyeing and Progress in Research","authors":"H. Yasunaga","doi":"10.4011/SHIKIZAI.81.388","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.388","url":null,"abstract":"","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86082030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preparation of Inorganic Fine Particles through Wet Processes","authors":"Mitsunobu Iwasaki, Wonkyu Park","doi":"10.4011/SHIKIZAI.81.17","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.17","url":null,"abstract":"","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75903945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystallization Technology to Create Nanocrystals","authors":"I. Hirasawa, T. Mikami","doi":"10.4011/SHIKIZAI.81.161","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.161","url":null,"abstract":"","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84901346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ink-Jet Fabrication of Thin Films on Patterned Immobilized Fluoroalkylsilane Monolayer Surface","authors":"A. Takahara, M. Morita","doi":"10.4011/SHIKIZAI.81.395","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.395","url":null,"abstract":"","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85873946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Shibata, T. Ogura, H. Sakai, M. Matsumoto, M. Abe
Crystalline mesoporous titania particles were prepared and their photocatalytic activity under visible light irradiation was investigated. A novel method including a low-temperature crystallization technique of titania in the presence of cationic surfactants supplied mesoporous titania particles having crystalline walls. The obtained titania showed an absorption threshold drastically shifted to the longer wavelength side and a photocatalytic activity under visible light (>440 nm) irradiation.
{"title":"Preparation and Photocatalytic Activity under Visible Light Irradiation of Crystalline Mesoporous Titania Particles","authors":"H. Shibata, T. Ogura, H. Sakai, M. Matsumoto, M. Abe","doi":"10.4011/SHIKIZAI.81.235","DOIUrl":"https://doi.org/10.4011/SHIKIZAI.81.235","url":null,"abstract":"Crystalline mesoporous titania particles were prepared and their photocatalytic activity under visible light irradiation was investigated. A novel method including a low-temperature crystallization technique of titania in the presence of cationic surfactants supplied mesoporous titania particles having crystalline walls. The obtained titania showed an absorption threshold drastically shifted to the longer wavelength side and a photocatalytic activity under visible light (>440 nm) irradiation.","PeriodicalId":21870,"journal":{"name":"Shikizai Kyokaishi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83821780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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