{"created":"2023-06-19T08:46:05.996671+00:00","id":4813,"links":{},"metadata":{"_buckets":{"deposit":"9ae90352-2286-4eba-8b12-572255c73577"},"_deposit":{"created_by":14,"id":"4813","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"4813"},"status":"published"},"_oai":{"id":"oai:kpu.repo.nii.ac.jp:00004813","sets":["47:273:411"]},"author_link":["7712","7846"],"control_number":"4813","item_1696926521561":{"attribute_name":"その他（別言語等）","attribute_value_mlt":[{"subitem_alternative_title":"Studies on the internal stresses in finished wood : 3. On the stresses developing during the formation of paint films coated on wood surface (Forestry)","subitem_alternative_title_language":"en"}]},"item_3_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1967-10-15","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"75","bibliographicPageStart":"65","bibliographicVolumeNumber":"19","bibliographic_titles":[{"bibliographic_title":"京都府立大學學術報告. 農學","bibliographic_titleLang":"ja"},{"bibliographic_title":"The scientific reports of Kyoto Prefectural University. Agriculture","bibliographic_titleLang":"en"}]}]},"item_3_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"本報は塗装木材の塗膜内部に発生する内部応力を明らかにすることを目的として, 前報と同じ組成および配合比の4種の木材用塗料を用い, 塗膜形成過程中に発生する応力の経時的変化を測定したものである。測定装置はFig. 1,試験片はFig. 4に示す形状および寸法のヒノキ曲げ試験片で, 塗装試験片のたわみを阻止するに要する荷重を測定し, (2)式から応力を計算した。得られた主な結果を要約すると次の通りである。1)塗膜形成過程中に発生する応力は次の3つ, [○!A]塗布時の塗料と木材との温度差にもとづく正の応力(木材温度が高い場合, 塗布面側 : 凹), つづいて[○!B]塗料膨潤成分の木材中への浸透にもとづく負の応力(塗布面側 : 凸), さらに[○!C]硬化のさいの塗料の容積収縮にもとづく正の応力(塗布面側 : 凹), に区別できる(Fig. 6∿9)。2)重合硬化型のポリエステル樹脂塗料の膨潤および収縮応力は乾燥条件60℃, R. H. 30%の場合を除くと4供試塗料の中では最小である(Fig. 8,9,Table 1,2)。3)溶剤揮散硬化型のニトロセルロース・ラッカー塗料は若干の可塑剤を含有し, しかも溶剤の揮散が著しいのでポリエステル樹脂塗料に次いで膨潤および収縮応力が小さい(Fig. 8,9,Table 1,2)。4)付加重合硬化型のポリウレタン樹脂塗料では膨潤応力に比較して収縮応力が小さいために負の応力経過をたどり, 応力の逆転が生じない。なお, この塗料は乾燥条件によって短時間側と長時間側に負の最大応力の存在することが予想される(Fig. 8,9,Table 1,2)。5)プチル化尿素樹脂やメラミン樹脂を含有する脱水縮合硬化型のアミノアルキッド樹脂塗料は4供試塗料の中で最大の膨潤および収縮応力を発生し, しかも応力の逆転や硬化の終了に最も長時間を要する。なお, 乾燥条件60℃, R. H. 50%の場合には他の乾燥条件に比較して膨潤および収縮応力が最も低い(Fig. 8,9,Table 1,2)。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_3_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"In the present paper, the stress developed during the formation of paint films coated on wood surface was measured as the function of time for four kinds of paints (polyester, polyurethane, amino alkyd resin paint, and nitrocellulose lacquer paint) in order to investigate the internal stresses in finished wood. The composition and the mixing ratio of paints used in this experiment are the same as those described in previous report. The experimental apparatus, and the shape and dimensions of the test specimens are as shown in Figs. 1 and 4 respectively. In this experiment, the load required to restrain the deflection in the center of span of wood beam (two supported beam) coated with the paints on one side was determined, and then from the results, the stress occurred was calculated by equation (2). The results obtained are as follows : 1) The stress developed during the formation of the paint films on wood surface is based on the following three cause; (A) the positive stress (concave on coated side) resulting from the difference of temperature between wood and paint-solution, (B) the negative stress (convex on coated side) resulting from the penetration of the swelling constituents in the paint-solutions into wood, and (C) the positive stress (concave on coated side) resulting from the volume-contraction of the paint films (Figs. 6∿9). The occurrence of stress on the term (A) of the above three cause is very rapid compared to the other, followed by that on the term (B), and that on the term (C) is the slow preocess. 2) The swelling- and the shrinking stress by polyester show the lowest value of the four kinds of paints used in this experiment except those for the drying condition at 60℃ and R. H. 30% (Figs. 8 and 9,Table 1 and 2). 3) The swelling- and the shrinking stress by nitrocellulose lacquer paint which a little plasticizer is contained and the solvent is apt to vaporize remarkably, is small followed by those of polyester resin paint (Figs. 8 and 9,Table 1 and 2). 4) In polyurethane resin paint, the shrinking stress is fairly low comparative to the swelling stress. Accordingly, the stress reversal is not recognized, while it is assumed in this paint that there exists the negative maximum stress in the range of the shorter and the longer time under a certain drying condition (Figs. 8 and 9,Table 1 and 2). 5) The swelling- and the shrinking stress occurred by amino alkyd resin paint containing butylated urea resin and melamine resin show the highest value of the paints used in this experiment, and the time of stress reversal and the drying time also is largest. Especially, the value of the swelling- and the shrinking stress is remarkable low for the drying condition at 60℃ and R. H. 50% (Figs. 6∿9,Table 1 and 2).","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_3_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00062275","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_20":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00757373","subitem_source_identifier_type":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"福山, 萬治郎","creatorNameLang":"ja"},{"creatorName":"フクヤマ, マンジロウ","creatorNameLang":"ja-Kana"},{"creatorName":"Fukuyama, Manjiro","creatorNameLang":"en"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"浦上, 弘幸","creatorNameLang":"ja"},{"creatorName":"ウラカミ, ヒロユキ","creatorNameLang":"ja-Kana"},{"creatorName":"Urakami, Hiroyuki","creatorNameLang":"en"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-02-20"}],"displaytype":"detail","filename":"KJ00000078812.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"KJ00000078812.pdf","url":"https://kpu.repo.nii.ac.jp/record/4813/files/KJ00000078812.pdf"},"version_id":"a20a23e1-57a4-4834-97a4-6d8a415f6236"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper"}]},"item_title":"塗装木材の内部応力に関する研究 III : 塗膜形成過程中に発生する応力について(林学部門)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"塗装木材の内部応力に関する研究 III : 塗膜形成過程中に発生する応力について(林学部門)","subitem_title_language":"ja"}]},"item_type_id":"3","owner":"14","path":["411"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2017-02-20"},"publish_date":"2017-02-20","publish_status":"0","recid":"4813","relation_version_is_last":true,"title":["塗装木材の内部応力に関する研究 III : 塗膜形成過程中に発生する応力について(林学部門)"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2024-04-12T05:05:40.573187+00:00"}