影响内墙乳胶漆耐擦洗性能的因素

对内墙乳胶漆的配方进行了研究,讨论了不同乳液、颜填料、成膜助剂和分散剂等市售产品对内墙乳胶漆耐擦洗性能的影响。结果表明,硅丙乳液的耐擦洗性能最好,纯丙和苯丙乳液次之,醋丙乳液较差。金红石型钛白粉比锐钛型钛白粉的耐擦洗性能好,但其成本较高。重质碳酸钙的粒径越小,涂膜的耐擦洗次数越少。体质颜料的用量过少,会影响漆膜的遮盖力和机械性能;用量过多,则漆膜易粉化,从而影响耐擦洗性能。成膜助剂可以显著改善漆膜的耐擦洗性能,市售成膜助剂醇酯12和巴斯夫7034分散剂的耐擦洗性能较好。     

水性建筑隔热保温外墙涂料的研制

通过优选不同丙烯酸乳液以及隔热功能填料,制备了一种综合性能优良的新型水性建筑隔热保温外墙涂料.研究了隔热功能填料种类、用量和漆膜厚度等对涂料隔热性能的影响,采用扫描电子显微镜观测了漆膜的微观形貌.实验结果表明,以某纯丙乳液为主要成膜物,选用热反射隔热粉为隔热填料(用量为10％),当颜填料体积浓度(PVC)为41.5％、漆膜厚度为200 μm时,所得涂层表面平整,耐沾污性和隔热性能较好,隔热温差达8.5℃,全波段太阳反射比为0.815 2,半球辐射率达0.90.     

建筑反射隔热保温涂料的研制

介绍了以有机硅改性丙烯酸乳液为基料,不透明聚合物、空心微珠和红外辐射功能颜填料制备建筑反射隔热保温涂料的工艺技术,研究了几种功能颜填料及涂料体系的PVC值对涂料隔热保温性能的影响,乳液T_g值及阻燃剂对涂料耐沾污性和阻燃性能的影响。     

水性单组分环氧防腐底漆的制备及性能

介绍了一款钢结构用水性单组分环氧防腐底漆的制备。讨论了施工干燥条件的选择,颜填料体积浓度(PVC)对该底漆耐盐雾和耐水性能的影响,不同防锈颜料对漆膜防腐性能的影响,以及流变助剂对涂料贮存稳定性的影响。结果表明,以80℃×30 min作为工业流水线生产施工的干燥条件,当PVC在20.7%时,涂料各项性能(特别是耐盐雾性和耐水性)达到最佳。以质量比为2∶1∶1的磷酸锌/钼酸盐复合物(Nubirox N106)、钙磷钼酸盐复合物(SW 111)及磷酸锌铝水合物(ZPA)复配,在防锈颜料总量占涂料总量10.16%的情况下,漆膜的耐盐雾效果最佳。     

耐高温自干绝缘漆的研制

传统的耐高温绝缘漆存在高温烘烤、附着力差等缺点,采用自制的环氧改性有机硅树脂为主要成膜物质,以丙烯酸树脂为辅助树脂,添加耐高温颜填料、助剂等,制备耐高温自干绝缘漆。考察了改性树脂中硅醇的酸价、硅醇与环氧树脂的配比、改性树脂与丙烯酸树脂配比及颜填料、助剂等对耐高温自干绝缘漆性能的影响。试验结果表明:其漆膜能常温干燥,机械性能、耐介质性和绝缘性能均优于常规烘干绝缘漆。     

大功率核电站用涂料的研究和应用

针对核电站用涂料的特性选择环氧树脂和耐辐照的颜填料,以及采用胺加成反应物固化剂研制高功率核电站用涂料.讨论了树脂、胺固化剂和颜填料的选择,PVC对涂料的影响,环氧树脂与胺的物质的量比的确定.     

预涂金属卷材用水性环氧聚酯底漆的研制

将水性环氧树脂、丙烯酸改性饱和聚酯树脂、氨基树脂、插层改性累托石、各种颜填料和助剂按比例制成预涂金属卷材用水性环氧聚酯底漆。讨论了不同颜基比以及不同用量的环氧树脂、颜填料、插层改性累托石和偶联剂对漆膜性能的影响。获得了水性环氧聚酯底漆最佳配方:环氧树脂用量占树脂总固体分的15%,锶铬黄和插层改性累托石的用量分别占颜填料用量的30%和2%~3%,硅烷偶联剂1%。所得漆膜的附着力0级,硬度2H,T弯0,耐MEK擦试70次,抗流挂性和流平性良好。     

四苯基苯基多乙烯基硅油对高温硫化硅橡胶耐辐射性能的影响

通过Diels—Alder反应合成了四苯基苯基多乙烯基硅油（C2胶）。研究了在真空下经受总辐照剂量为500kGy和1000kGy、辐照剂量率150Gy／min的γ-射线辐照后C2胶对高温硫化硅橡胶耐辐射性能的影响。讨论了辐照前后硅橡胶相邻两交联点间有效链平均分子量^-Mc和力学性能的变化。结果表明C2胶能有效地提高硅橡胶的耐辐射性能，并且其辐射保护效果随着其浓度的增加（从2份到14份）而增加。     

核能燃料工业耐高温、耐辐照专用防火涂料的研制和应用

介绍了核能燃料工业耐高温、耐辐照专用防火涂料的研制和应用。选用新型改性聚有机硅氧烷为基料,加入耐高温、耐辐照的颜填料及优良的阻燃剂和防火剂,和N-7固化剂配成GT系列常温固化的核能燃料工业耐高温、耐辐照设备的专用防火涂料,该涂料可以长期耐高温、耐辐照,其去污性能、防火性能优良。     

水性丙烯酸乳液增韧有机硅陶瓷涂料的制备和性能研究

以甲基三甲氧基硅烷（ MTMS）、苯基三甲氧基硅烷（ PTMS）等烷氧基硅烷单体、硅溶胶、颜填料和丙烯酸乳液等为原料,四丙基氢氧化铵（ NPr₄OH）为固化催化剂,制备了一种水性丙烯酸乳液增韧改性的有机硅陶瓷涂料。考察了颜基比、固化催化剂、氧化铝、有机硅树脂和丙烯酸乳液用量对漆膜性能的影响。结果表明：丙烯酸乳液对有机硅树脂的增韧改性能有效降低漆膜内应力、提高漆膜耐老化性。当颜基比为 2∶1、100 g涂料中含 35 mg NPr4OH,氧化铝占颜填料质量的 10%、丙烯酸乳液质量分数为 20%时,漆膜铅笔硬度可达到 8H,附着力 1级,耐冲击性 50 cm,耐老化试验可达到 2 500 h,耐盐雾试验 2 300 h。     

利用废弃聚苯乙烯泡沫塑料生产涂料的研究

利用废弃聚苯乙烯泡沫塑料做基料,筛选出一种石油裂解副产物经处理后做溶剂,再添加乳化剂、固体填料、体质颜料、增塑剂,通过对比实验对涂料的配方进行了选择,涂料最佳配比为:基料26%、溶剂44%、乳化剂2.6%、固体填料23%、体质颜料3%、增塑剂1.4%。其性能指标测试的结果表明,该涂料为乳白色粘稠液体,常温下速干,漆面平整光滑。涂料防水性、防腐性、稳定性指标符合涂料生产要求。     

高性能外墙弹性乳胶漆的研制

介绍了一种新型的SiO2杂化水性聚氨酯与丙烯酸酯复合乳液制备高性能外墙弹性乳胶漆配方及工艺,讨论了成膜物质、助剂、颜填料及颜料体积浓度等因素对其涂膜弹性、耐候性、耐沾污性、耐水性等性能的影响。结果表明,研制的高性能外墙弹性乳胶漆各项性能优异。     

铝包膜TiO2的膜层结构对颜料性能的影响

以偏铝酸钠为包膜剂，采用液相沉淀法在TiO2粒子表面包覆Al2O3膜。采用TEM、SEM、XRF等手段表征无机膜层，通过测试包膜TiO2样品的耐候性、光泽度、亮度等评价其颜料性能。研究以HRTEM结合晶格计算分析膜层氧化铝晶型，并对包膜pH和温度对包膜TiO2的膜层结构和颜料性能的影响进行了实验研究。结果表明，酸性条件下包膜TiO2的膜层氧化铝为无定形，样品耐候性较优；pH=10时膜层氧化铝为勃姆石型和拜耳石型混合晶型，以勃姆石型为主，产品颜料性能优异；pH>11时膜层氧化铝为拜耳石型，产品颜料性能较差。温度升高会增加膜层氧化铝的结晶度，提高包膜TiO2产品的颜料性能。     

水性聚氨酯印花粘合剂应用工艺研究

以聚乙二醇（PEG）、异佛尔酮二异氰酸酯（IPDI）为原料,二羟甲基丙酸（DMPA）为亲水扩链剂,乙二胺为非亲水扩链剂,三乙胺（TEA）为中和剂,采用预聚体分散法合成水性聚氨酯涂料印花粘合剂。通过单因素分析法测试涂料印花织物牢度指标等性能,确定了最佳整理工艺为：焙烘温度为150℃,焙烘时间为3min,粘合剂用量25g,涂料用量Rg．交联剂用量0.8g,增稠剂用量2~4g。     

多功能机车涂料的研制

以高羟基聚酯/丙烯酸树脂为基体树脂,以N-75为交联固化剂,以金红石型钛白粉、隔热粉、高岭土、硫酸钡、云母粉为颜填料,以石英砂为防滑骨料,以纳米SiO2为改性剂,在助剂和溶剂的配合下制备双组分中、面配套机车涂料,涂膜具有防滑性、抗电压击穿性、隔热性、抗风沙冲击磨蚀性及防腐蚀性等特点。     

Coating organic pigment particles with hydrous alumina through direct precipitation

A novel coating process of hydrous alumina on organic pigment particles through direct precipitation in aqueous solution was developed in this work. The aqueous suspensions of organic pigment particles were prepared using cetyltrimethylammonium bromide (CTAB) and sodium dodecylbenzene sulfonate (SDBS) as additives before the coating. The organic pigment particles were then coated with hydrous alumina using Al₂(SO₄)₃ as precursor. The morphology and surface states of as-coated organic pigment particles were analyzed by high-resolution transmission electron microscopy (HRTEM) and zeta-potential. TEM images showed that a uniform hydrous alumina film could be formed on the organic pigment particle surface with anion surfactant SDBS. However, with cation surfactant CTAB, no alumina coating film was generated on the organic pigment particle surface.     

织物直接涂层用高耐水压聚氨酯涂层剂

研究了织物直接涂层用高耐聚氨酯涂层剂的配方及制备工艺。讨论了ＭＤＩ含量、聚醚／聚酯比率、扩链剂以氨酯涂层剂皮膜物理性能的么及聚氨酯涂层剂结构、涂层加工地涂层强俄耐水性能的影响。     

胶乳的作用及对纸张涂料性能的影响

胶乳加到高岭土悬浮液中能瓦解片状高岭土的聚集 ,提高了涂料的多分散性 ,同时增加了涂料的稳定性。胶乳在涂料中起到粘接颜料粒子及颜料与纸基的作用 ,增强涂层强度。胶乳的粒径和形状、胶乳的稳定性及玻璃化温度等特性影响涂料粘度、流变性等性能。在预涂涂布中 ,选择由高苯乙烯含量聚合的羧基丁苯胶乳可提高涂层抗拉毛强度及纸面光泽度和平滑度 ,有利于面涂涂布     

The preparation and characteristics of surface treated barium sulfate extender pigment

This article deals with the treatment of barium sulfate extender pigment with iron oxide and its phenomenological adsorption mechanism in the presence of H⁺ and OH^? ions in solution. The pH range taken in the present study is 5–6. By depositing a ferric oxide layer on barium sulfate particles a novel pigment with better optical and functional performance is obtained. This pigment in various coating systems improves physicochemical performance and acts as an active barrier. The treated pigments can be suitably used in different architectural and industrial coatings. The experimental techniques of surface treatment are discussed, along with the instrumental analysis by SEM, EDAX, XRD, etc.     

Hydroxyapatite Coating on Titanium Substrate by the Sol-Gel Process

Hydroxyapatite coatings on titanium were attempted by a sol-gel process combined with conventional heat treatment and with UV irradiation at ambient temperature after dipping/ withdrawing a substrate into/from the sol. X-ray diffraction data showed that a coating film prepared by heat treatment was amorphous and crystallized in Ca₅(PO₄)₃(OH) at a temperature of 773–973 K. The infrared spectra for coating films that have been prepared by heat treatment at a temperature of 573–873 K were in fair agreement with those for a coating film prepared by UV irradiation. After ethylene oxide sterilization, the cytotoxicity of coating film decreased with increasing irradiation time in UV irradiation, whereas it decreased with increasing temperature in conventional heat treatment. In comparisons between ethylene oxide sterilization and autoclave sterilization, the coating film sterilized by autoclave had much lower cytotoxicity than that sterilized by ethylene oxide. Furthermore, an animal test in the transfemoral drill hole on a rat for 4 weeks was examined using an implant prepared by heat treatment and autoclave sterilization. The sol-gel-coated titanium had slightly higher bone apposition than uncoated titanium as a control material.