包装学报
包裝學報
포장학보
PACKAGING JOURNAL
2011年
4期
33-38
,共6页
PVA涂布液%耐水改性%纳米改性
PVA塗佈液%耐水改性%納米改性
PVA도포액%내수개성%납미개성
PVA coatings%hydrophobically modified%nano-modification
PVA涂布液主要经历了耐水改性研究和纳米改性研究2个阶段。PVA耐水改性主要包括缩醛化改性、氨基树脂改性、尿素改性、硼酸改性、硅烷偶联剂改性、阳离子化改性等,纳米改性主要包括纳米SiO2改性、纳米CaCO3改性、纳米TiO2改性、层状硅酸盐改性等。改性PVA涂布膜具有较好的耐水性能、黏结性能、阻隔性能,价格相对便宜,且在加工和消费过程中,不会释放有毒有害物质,绿色环保,具有较好的市场发展前景。
PVA塗佈液主要經歷瞭耐水改性研究和納米改性研究2箇階段。PVA耐水改性主要包括縮醛化改性、氨基樹脂改性、尿素改性、硼痠改性、硅烷偶聯劑改性、暘離子化改性等,納米改性主要包括納米SiO2改性、納米CaCO3改性、納米TiO2改性、層狀硅痠鹽改性等。改性PVA塗佈膜具有較好的耐水性能、黏結性能、阻隔性能,價格相對便宜,且在加工和消費過程中,不會釋放有毒有害物質,綠色環保,具有較好的市場髮展前景。
PVA도포액주요경력료내수개성연구화납미개성연구2개계단。PVA내수개성주요포괄축철화개성、안기수지개성、뇨소개성、붕산개성、규완우련제개성、양리자화개성등,납미개성주요포괄납미SiO2개성、납미CaCO3개성、납미TiO2개성、층상규산염개성등。개성PVA도포막구유교호적내수성능、점결성능、조격성능,개격상대편의,차재가공화소비과정중,불회석방유독유해물질,록색배보,구유교호적시장발전전경。
The most common methods which have been used to modify the PVA coatings can be mainly divided into two phases- hydrophobically modified poly(vinyl alcohol) (PVA) solutions and nano modified-PVA coatings. Hydrophobically modified methods are comprised of acetal, amino resins, urea, boric acid, silane coupling agents and cationic. On the other hand, nano- SiO2, CaCO3, TiO2 particles and layered silicates are widely used to modify the PVA coatings. They offer an opportunity to explore new behaviors and functionalities beyond that of conventional materials such as water resistance, adhesive properties and barrier properties. Meanwhile, in the producing and consuming processes, modified PVA coatings will not release any toxic substances which show good marketing prospects.