{"title":"气相接枝棕榈酰氯制备耐热水PVOH涂层纸的研究(II)——无机颜料涂层对棕榈酰氯渗透的控制","authors":"K. Lee, J. Choi, Kyoung-Hwa Choi, Jeong-yong Ryu","doi":"10.1515/npprj-2022-0069","DOIUrl":null,"url":null,"abstract":"Abstract In this experiment, we explored how to control the penetration of palmitoyl chloride in the gas grafting of PVOH-coated paper. When calcium carbonate was pre-coated, the gas grafting reaction of the PVOH-coated paper tended to be inhibited. It is believed that palmitoyl chloride is additionally consumed by moisture generated when calcium carbonate neutralizes hydrochloric acid gas, a by-product of the graft reaction, thereby inhibiting the graft reaction and reducing the hydrophobization efficiency by generating unreacted residual free fatty acids. Unlike calcium carbonate, the clay coating layer blocks the penetration of vaporized palmitoyl chloride and improves the gas grafting density of PVOH without moisture generation. The PVOH coating layer, where vaporized palmitoyl chloride penetrates, is thinly processed to avoid unnecessary graft reactions in the thickness direction, and the propagation of palmitoyl chloride in the gas phase is blocked by the clay-coating layer. In previous studies, an excess of 1400 mg/m2 of palmitoyl chloride was required to secure strong hydrophobicity of less than 10 g/m2 of Cobb hot water absorption. However, by pre-coating the clay, only 650 mg/m2 of palmitoyl chloride, which was about a 53% reduction compared to previous studies, was sufficient to perform a strong hydrophobic treatment.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"49 11","pages":"359 - 366"},"PeriodicalIF":0.9000,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study on manufacturing hot water-resistant PVOH coated paper by gas grafting palmitoyl chloride (II)–Control of palmitoyl chloride penetration by inorganic pigments coating\",\"authors\":\"K. Lee, J. Choi, Kyoung-Hwa Choi, Jeong-yong Ryu\",\"doi\":\"10.1515/npprj-2022-0069\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract In this experiment, we explored how to control the penetration of palmitoyl chloride in the gas grafting of PVOH-coated paper. When calcium carbonate was pre-coated, the gas grafting reaction of the PVOH-coated paper tended to be inhibited. It is believed that palmitoyl chloride is additionally consumed by moisture generated when calcium carbonate neutralizes hydrochloric acid gas, a by-product of the graft reaction, thereby inhibiting the graft reaction and reducing the hydrophobization efficiency by generating unreacted residual free fatty acids. Unlike calcium carbonate, the clay coating layer blocks the penetration of vaporized palmitoyl chloride and improves the gas grafting density of PVOH without moisture generation. The PVOH coating layer, where vaporized palmitoyl chloride penetrates, is thinly processed to avoid unnecessary graft reactions in the thickness direction, and the propagation of palmitoyl chloride in the gas phase is blocked by the clay-coating layer. In previous studies, an excess of 1400 mg/m2 of palmitoyl chloride was required to secure strong hydrophobicity of less than 10 g/m2 of Cobb hot water absorption. However, by pre-coating the clay, only 650 mg/m2 of palmitoyl chloride, which was about a 53% reduction compared to previous studies, was sufficient to perform a strong hydrophobic treatment.\",\"PeriodicalId\":19315,\"journal\":{\"name\":\"Nordic Pulp & Paper Research Journal\",\"volume\":\"49 11\",\"pages\":\"359 - 366\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2023-01-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nordic Pulp & Paper Research Journal\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1515/npprj-2022-0069\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nordic Pulp & Paper Research Journal","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1515/npprj-2022-0069","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
Study on manufacturing hot water-resistant PVOH coated paper by gas grafting palmitoyl chloride (II)–Control of palmitoyl chloride penetration by inorganic pigments coating
Abstract In this experiment, we explored how to control the penetration of palmitoyl chloride in the gas grafting of PVOH-coated paper. When calcium carbonate was pre-coated, the gas grafting reaction of the PVOH-coated paper tended to be inhibited. It is believed that palmitoyl chloride is additionally consumed by moisture generated when calcium carbonate neutralizes hydrochloric acid gas, a by-product of the graft reaction, thereby inhibiting the graft reaction and reducing the hydrophobization efficiency by generating unreacted residual free fatty acids. Unlike calcium carbonate, the clay coating layer blocks the penetration of vaporized palmitoyl chloride and improves the gas grafting density of PVOH without moisture generation. The PVOH coating layer, where vaporized palmitoyl chloride penetrates, is thinly processed to avoid unnecessary graft reactions in the thickness direction, and the propagation of palmitoyl chloride in the gas phase is blocked by the clay-coating layer. In previous studies, an excess of 1400 mg/m2 of palmitoyl chloride was required to secure strong hydrophobicity of less than 10 g/m2 of Cobb hot water absorption. However, by pre-coating the clay, only 650 mg/m2 of palmitoyl chloride, which was about a 53% reduction compared to previous studies, was sufficient to perform a strong hydrophobic treatment.
期刊介绍:
Nordic Pulp & Paper Research Journal (NPPRJ) is a peer-reviewed, international scientific journal covering to-date science and technology research in the areas of wood-based biomass:
Pulp and paper: products and processes
Wood constituents: characterization and nanotechnologies
Bio-refining, recovery and energy issues
Utilization of side-streams from pulping processes
Novel fibre-based, sustainable and smart materials.
The editors and the publisher are committed to high quality standards and rapid handling of the peer review and publication processes.
Topics
Cutting-edge topics such as, but not limited to, the following:
Biorefining, energy issues
Wood fibre characterization and nanotechnology
Side-streams and new products from wood pulping processes
Mechanical pulping
Chemical pulping, recovery and bleaching
Paper technology
Paper chemistry and physics
Coating
Paper-ink-interactions
Recycling
Environmental issues.