有机无机杂化涂料

<正>~~     

有机无机杂化涂料

正201606008涂料用有机无机杂化粒子的制备及应用:JP2015 203 083[日本专利公开]/日本:Taisei Fine Chemical Co.,Ltd.(Kuroda,Masuyoshi).-2015.11.16.-34页.2014/83 872(2014.04.15)题述粒子具有硅酸结构单元和硅化合物聚合衍生的基团。例如,将100 g硅酸钠加入900 g水中,混合,加入500 g Diaion SK 1B(阳离子交换树脂),混合30 min,     

有机无机杂化涂料

<正>201404009应用于铝材的采用短链全氟聚合物乳液的憎水性有机-无机杂化溶胶凝胶涂料的研制[刊,英]/Wankhede,Ruchi Grover等//Applied Surface Science.-2013(238).-1051~1059制备了一种应用于铝材上的有机-无机杂化的溶胶凝胶涂膜体系(厚度为5μm)。该涂膜中采用了环氧丙氧基三甲氧基硅烷(GPTMS)和甲基三甲氧基硅烷(MTMS)作为硅烷前体,与六甲基甲氧基三聚氰胺(HMMM)交联,随后用水性短链全氟乳液(FE)进行憎水性改性,提高了涂膜的憎水性,涂膜接触角约为     

有机无机杂化涂料

<正>201411011含聚二甲基硅氧烷(PDMS)的有机-无机杂化抗菌涂料[刊,英]/Oktay,Burcu//Journal of Coatings Technology and Research.-2013,10(6).-785~798采用溶胶-凝胶法制备了UV固化的有机无机杂化抗菌涂料。合成了三甲氧基硅烷封端的聚(二甲基硅氧烷)(TESi-PDMS),作为新型偶联剂以提高有机相与无     

有机无机杂化涂料

热及辐射固化有机-无机杂合涂料组合物、其涂膜及涂膜的制备;有机-无机杂合树脂水分散体、其可固化树脂组合物、涂料及用其涂覆的制件;有机-无机杂合聚合物水分散体、可固化的聚合物组合物、涂料及涂覆的产品     

有机无机杂化涂料

硅烷偶联剂作用下有机-无机杂化涂料的研制,混凝土封闭底漆的研制     

有机无机杂化涂料

201010022 含丙烯酸氨基甲酸酯树脂和有机烷氧基硅烷的水性有机-无机乳液涂料：JP2010-90325[日本专利公开]／日本：Nippon Paint Co．,Ltd．（Masuda,Kazuaki等）．-2010.04．22．-16页．-2008／263 501（2008．10．10）：IPC C09D153／00     

有机无机杂化涂料

200703029制备防腐性、柔韧性、抗划伤性和表面硬度好的水性有机-无机涂覆剂的方法:KR2005-41034[韩国专利]/韩国:Korea Research Institute of ChemicaTechnology(Kim,Jae Hong等).-2005.5.4.-75897(2003.1029);IPC C09D1/04题述方法包括将氧化铝/氧化锆纳米复合溶胶与亚烷基二醇和烷基硅烷杂化处理。该方法包括使3%～30%的铝盐水溶液和3%～20%的碱水溶液在pH值6～10条件下制备氢氧化铝沉淀饼状物,洗涤,将得到的氢氧化铝沉淀饼状物与溶胶化剂及氯化锆水合物反应制备水性氧化铝/氧化锆纳米复合凝胶,在80～100℃加热30～56h制备水性氧…     

有机无机杂化涂料

不锈钢上预防生物腐蚀用的通过连续表面引发原子转移游离基聚合的抗菌有机-无机杂化涂料 为了提高不锈钢的防腐性能以及使其表面带有抗菌功能,抑制生物膜的形成和生物腐蚀,制备了特定的有机-无机杂化涂料,     

有机无机杂化涂料

200910028水性有机一无机杂合组合物、含该组合物的水性组合物、透明有机一无机杂合材料和功能复合物：JP2009-19072[日本专利公开]／日本．Asahi Kasei Chemicals Corporation（Masako,Teruaki等）．-2009．01．29．-50页．-2007／180892（2007．07．10）：IPCC08L101／10     

无机-有机杂化材料研究进展

综述了无机-有机杂化材料的制备方法、性能表征手段及用途，介绍了杂化材料的优异性能及今后的研究发展方向。     

PSAF@淀粉无机-有机杂化絮凝剂的合成与表征

将粉煤灰与固体氢氧化钠混合焙烧活化,经酸浸、静置后引入淀粉和引发剂K2S2O8,通过水解、缩聚等步骤一步法合成聚硅酸铝铁(PSAF)-淀粉杂化絮凝剂,考察了淀粉添加量和引发剂用量对絮凝性能的影响.研究发现,当淀粉添加量为40%,引发剂用量为1%时,对低浊度模拟水样的浊度去除率最高可达76.3%.PSAF@淀粉杂化絮凝剂电导率随浓度呈现良好的线性关系,在1086 cm-1处保留更为明显的淀粉葡萄糖C-O-C伸缩振动吸收峰,半衰期温度也较PSAF-淀粉混合物要高,热稳定性更好,表明PSAF-淀粉杂化产物无机-有机间以共价键形式结合.     

溶胶-凝胶法制备无机基质/有机杂化光学材料及其光学性能研究

探索一种制备无机基质/有机杂化光功能材料的途径,采用溶胶-凝胶法在无机基质溶胶中分别掺杂自制的5种有机发光材料,制备出透明、均匀的有机-无机杂化发光薄膜,研究其发光行为,探讨发光行为的规律。     

A Novel NIR Laser Switched Nanocomposite Hydrogel as Remote Stimuli Smart Valve

Thermosensitive nanocomposite (NC) hydrogels are considered as a significant kind of intelligent material to be utilized as sensor, biomaterial, drug carrier, etc. Recently, preparation of remotely controlled NC hydrogel with high‐performance attracts more and more concern. To produce facile remote‐stimuli thermosensitive NC hydrogel, a novel near‐infrared (NIR) laser switched CuS/clay/poly(OEGMA‐co‐MEO₂MA) hydrogel is demonstrated, which can be precisely remote‐stimulated by NIR irradiation based on the excellent NIR photothermal conversion property of CuS nanoparticle. The temperature change of hydrogel is related to the NIR intensity, CuS content, and crosslinking density. Moreover, the influences on dimensional variation of hydrogel on macroscale are systematically studied, and the hydrogel as smart liquid valve is further utilized which can be remotely controlled by NIR switch on/off successfully. Cyclic test illustrates that this novel CuS/clay/poly(OEGMA‐co‐MEO₂MA) hydrogel exhibits stable cyclic volume transition property which has promising applications in the areas of sensors, valves, and intelligent switches.     

Development and Characterization of Inorganic-Organic (Si-O-Al) Hybrid Geopolymeric Precursors via Solid State Method

Silicon - In this study, an innovative one part, solution free concept applied for the development of hybrid inorganic–organic geopolymeric precursors having Si-O-Al networks at the precursor...     

无机-有机复合乳液

介绍了一种新型的乳液聚合方法－－－无机－有机复合乳液聚合,并简述了其形成的机理和应用。     

快速溶胀pH敏感明胶水凝胶的研究

明胶具有生物降解性及良好的生物相容性,已被广泛用于照相、食品及医药工业。为开发明胶的新用途,用乙二胺四乙酸酐(EDTAD)成功地对明胶进行了乙酰化改性,研制出了酰化明胶水凝胶,用紫外-可见分光光度法确定了酰化反应的工艺条件为:调节w(明胶)=1%水溶液的pH到12,在室温下反应2~3 h。酰化后明胶溶液的等电点向低pH方向移动,改性明胶所生成的水凝胶达到溶胀平衡所需的时间大幅度减小,平衡溶胀率呈几十甚至几百倍提高,且当m(EDTAD)∶m(明胶)<1∶15时,随着酰化剂用量的增加,改性明胶水凝胶的平衡溶胀率最高可达110左右。且水凝胶具有pH敏感性和离子强度敏感性,pH敏感点为pH≈4。     

Hybrid Nanoparticles and Composite Hydrogel Systems for Delivery of Peptide Antibiotics

The growing number of drug-resistant pathogenic bacteria poses a global threat to human health. For this reason, the search for ways to enhance the antibacterial activity of existing antibiotics is now an urgent medical task. The aim of this study was to develop novel delivery systems for polymyxins to improve their antimicrobial properties against various infections. For this, hybrid core–shell nanoparticles, consisting of silver core and a poly(glutamic acid) shell capable of polymyxin binding, were developed and carefully investigated. Characterization of the hybrid nanoparticles revealed a hydrodynamic diameter of approximately 100 nm and a negative electrokinetic potential. The nanoparticles demonstrated a lack of cytotoxicity, a low uptake by macrophages, and their own antimicrobial activity. Drug loading and loading efficacy were determined for both polymyxin B and E, and the maximal loaded value with an appropriate size of the delivery systems was 450 µg/mg of nanoparticles. Composite materials based on agarose hydrogel were prepared, containing both the loaded hybrid systems and free antibiotics. The features of polymyxin release from the hybrid nanoparticles and the composite materials were studied, and the mechanisms of release were analyzed using different theoretical models. The antibacterial activity against Pseudomonas aeruginosa was evaluated for both the polymyxin hybrid and the composite delivery systems. All tested samples inhibited bacterial growth. The minimal inhibitory concentrations of the polymyxin B hybrid delivery system demonstrated a synergistic effect when compared with either the antibiotic or the silver nanoparticles alone.     

一种新型抗缺口敏感性/自愈合水凝胶的制备与表征

氧化石墨烯由于其杰出的机械、电学、光学等性能,是一种较为理想的2D合成材料。在水凝胶网络中引入氧化石墨烯复合材料,不仅能极大地增强水凝胶的韧性和机械性能,还使得材料具有一些特殊的性质。使用氧化石墨烯生长金纳米颗粒并通过巯基-金可逆键吸附N,N′-双(丙烯酰)胱胺作为交联剂可以合成具有均匀结构的聚丙烯酰胺水凝胶。这种方法合成的水凝胶其拉断时拉伸应力超过2MPa,拉伸应变超过2500%;且当材料具有缺口时,其仍能保持一定的机械性能(在具有1/4缺口时,该水凝胶拉断时拉伸应变接近2000%,拉伸应力接近1MPa);切断的材料在断口处经近红外光照射2min后,材料自愈合。其自愈合后拉伸应变超过2000%,拉伸应力超过1MPa。