{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T03:06:40Z","timestamp":1771297600003,"version":"3.50.1"},"reference-count":25,"publisher":"Walter de Gruyter GmbH","issue":"3","funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2016YFD0600804"],"award-info":[{"award-number":["2016YFD0600804"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,9,27]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>A series of tung oil-rosin-based polyester (TRP) used as internal sizing agents were prepared using rosin, tung oil, maleic anhydride, and glycerol. TRP structure and properties were examined using Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and gel permeation chromatography (GPC). The TRP latexes were subsequently used as internal sizing agents, and the sizing properties were evaluated using a scanning electron microscope (SEM), a video-based dynamic contact angle measuring device and a Cobb absorbency tester. The optimal conditions for preparing the TRP sizing agent were as follows: the hydroxy-carboxyl ratio of the material was 0.25; the maleic anhydride dosage was 20\u2009% of rosin; and the tung oil dosage was 40\u2009% of rosin. Under the best conditions, the sized paper Cobb-60 was 15.6\u2009<jats:inline-formula id=\"j_npprj-2021-0033_ineq_001\">\n                     <jats:alternatives>\n                        <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/j_npprj-2021-0033_ineq_001.png\"\/>\n                        <m:math xmlns:m=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                           <m:mtext>g<\/m:mtext>\n                           <m:mo mathvariant=\"normal\" stretchy=\"false\">\/<\/m:mo>\n                           <m:msup>\n                              <m:mrow>\n                                 <m:mtext>m<\/m:mtext>\n                              <\/m:mrow>\n                              <m:mrow>\n                                 <m:mn>2<\/m:mn>\n                              <\/m:mrow>\n                           <\/m:msup>\n                        <\/m:math>\n                        <jats:tex-math>\\text{g}\/{\\text{m}^{2}}<\/jats:tex-math>\n                     <\/jats:alternatives>\n                  <\/jats:inline-formula>, the tensile index was 45.1\u2009N\u00b7m\/g, the burst index was 3.1\u2009kPa\u00b7<jats:inline-formula id=\"j_npprj-2021-0033_ineq_002\">\n                     <jats:alternatives>\n                        <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/j_npprj-2021-0033_ineq_002.png\"\/>\n                        <m:math xmlns:m=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                           <m:msup>\n                              <m:mrow>\n                                 <m:mtext>m<\/m:mtext>\n                              <\/m:mrow>\n                              <m:mrow>\n                                 <m:mn>2<\/m:mn>\n                              <\/m:mrow>\n                           <\/m:msup>\n                        <\/m:math>\n                        <jats:tex-math>{\\text{m}^{2}}<\/jats:tex-math>\n                     <\/jats:alternatives>\n                  <\/jats:inline-formula>\/g, and the tear index was 15.6\u2009mN\u00b7<jats:inline-formula id=\"j_npprj-2021-0033_ineq_003\">\n                     <jats:alternatives>\n                        <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/j_npprj-2021-0033_ineq_003.png\"\/>\n                        <m:math xmlns:m=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                           <m:msup>\n                              <m:mrow>\n                                 <m:mtext>m<\/m:mtext>\n                              <\/m:mrow>\n                              <m:mrow>\n                                 <m:mn>2<\/m:mn>\n                              <\/m:mrow>\n                           <\/m:msup>\n                        <\/m:math>\n                        <jats:tex-math>{\\text{m}^{2}}<\/jats:tex-math>\n                     <\/jats:alternatives>\n                  <\/jats:inline-formula>\/g.<\/jats:p>","DOI":"10.1515\/npprj-2021-0033","type":"journal-article","created":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T11:56:52Z","timestamp":1630411012000},"page":"503-511","source":"Crossref","is-referenced-by-count":2,"title":["Preparation and characterization of tung oil-rosin-based polyester internal sizing agent"],"prefix":"10.1515","volume":"36","author":[{"given":"Yazhou","family":"Xu","sequence":"first","affiliation":[{"name":"326781 Institute of Chemical Industry of Forest Products , CAF, National Engineering Lab for Biomass Chemical Utilization, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab of Biomass Energy and Material , Nanjing , Jiangsu , China"},{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources , Nanjing Forestry University , Nanjing , Jiangsu , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Songlin","family":"Dai","sequence":"additional","affiliation":[{"name":"326781 Institute of Chemical Industry of Forest Products , CAF, National Engineering Lab for Biomass Chemical Utilization, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab of Biomass Energy and Material , Nanjing , Jiangsu , China"},{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources , Nanjing Forestry University , Nanjing , Jiangsu , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liangwu","family":"Bi","sequence":"additional","affiliation":[{"name":"326781 Institute of Chemical Industry of Forest Products , CAF, National Engineering Lab for Biomass Chemical Utilization, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab of Biomass Energy and Material , Nanjing , Jiangsu , China"},{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources , Nanjing Forestry University , Nanjing , Jiangsu , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuxiang","family":"Chen","sequence":"additional","affiliation":[{"name":"326781 Institute of Chemical Industry of Forest Products , CAF, National Engineering Lab for Biomass Chemical Utilization, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab of Biomass Energy and Material , Nanjing , Jiangsu , China"},{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources , Nanjing Forestry University , Nanjing , Jiangsu , China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2021,6,23]]},"reference":[{"key":"2023040101521339162_j_npprj-2021-0033_ref_001","unstructured":"Bussell, G.\u2009W. 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Tappi J. 3(7):E41."}],"container-title":["Nordic Pulp &amp; Paper Research Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/npprj-2021-0033\/xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/npprj-2021-0033\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,4,1]],"date-time":"2023-04-01T22:28:23Z","timestamp":1680388103000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/npprj-2021-0033\/html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,23]]},"references-count":25,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2021,4,20]]},"published-print":{"date-parts":[[2021,9,27]]}},"alternative-id":["10.1515\/npprj-2021-0033"],"URL":"https:\/\/doi.org\/10.1515\/npprj-2021-0033","relation":{},"ISSN":["2000-0669","0283-2631"],"issn-type":[{"value":"2000-0669","type":"electronic"},{"value":"0283-2631","type":"print"}],"subject":[],"published":{"date-parts":[[2021,6,23]]}}}