The results of lauryl sodium sulfate - polyacrylamide gel electrophoreses ( sds - page ) of the aggregate precipitate and supernatant and the result of high - performance size - exclusion chromatography of the supernatant indicated that, by wrongly linked intermolecular disulfide bonds soluble bi - molecular and tri - molecular egg white lysozyme aggregate could be simultaneously formed except being renatured to native and active egg white lysozymes during the refolding procedure of denatured - reduced egg white lysozyme ; the aggregate precipitate could be further formed by the non - covalent bonds interaction between the soluble hi - molecular egg white lysozyme aggregates, and the soluble tri - molecular egg white lysozyme aggregate could still stay at the supernatant
沉澱和上清液的不連續十二烷基硫酸鈉
聚丙烯酰胺凝膠電泳（ sds - page ）和高效凝膠排阻層析分析結果表明，還原
脲變性蛋白溶菌酶在稀釋復性過程中除了能夠復性成天然態蛋白溶菌酶分子外，還會形成可溶的蛋白溶菌酶分子二
聚體和三
聚體，二
聚體和三
聚體主要是靠分子間二硫鍵的錯配連接而成的；可溶的蛋白溶菌酶分子二
聚體之間通過非共價鍵相互作用而形成集
聚體沉澱，而可溶的三
聚體溶菌酶分子則仍處于復性液上清液中。
Wood adhesives - urea - formaldehyde, phenol - formaldehyde and melamine - formaldehyde resins
木材工業膠粘劑用
脲醛酚醛三
聚氰胺甲醛樹脂
Wood adhesives : urea - formaldehyde, phenol - formaldehyde and melamine - formaldehyde resins
木材工業膠粘劑用
脲醛酚醛三
聚氰胺甲醛樹脂
At the same time, we also can supply taed, thiourea, melamine, aluminum sulphate, titanium dioxide rutile and anatase, rubber accelerator, methyl cellulose, hydroxypropyl methyl cellulose, monoammonium phosphate and other phosphates, 2 - ethyl anthraquinone, etc
同時還可為客戶提供四乙酰乙二胺硫
脲三
聚氰胺硫酸鋁鈦白粉橡膠促進劑甲基纖維素羥乙基甲基纖維素羥丙基甲基纖維素，磷酸二氫銨2 -乙基蒽醌等十幾種優質化工品。
Last, polyurea microcapsule containing octadecane as phase change material was successfully synthesized by interfacial polycondensation using tdi and deta as shell monomers in an emulsion only by reaction of tdi and deta, but also reaction of tdi and amines which are formed by hydrolysis of tdi at the interface
制備
聚脲樹脂微膠囊的過程不僅包括tdi和deta的反應，還包括tdi與自身水解產物的界面反應。 tdi與deta反應質量比為3 ： 1 。另外， np - 10還與tdi反應生成
脲烷。
The urea - formaldehyde ( uf ) polymer / sio2 composite microspheres were prepared by polymerization - induced colloid aggregation ( pica ) method. the formation mechanism of composite microspheres is attributed to the fact that that urea and formaldehyde firstly undergo acid - catalyzed polymerization to form oligomers, and then the sol particles are adsorbed on the chain of oligomers by wan der walls force and hydrogen bonding. when the oligomers reach the critical chain length, they separate from solution due to phase separation
對復合微球形成機理的研究表明，尿素和甲醛在酸性條件下自身
聚合可以形成高分子微球，在sio _ 2酸性溶膠中發生
聚和反應時，隨著反應的進行，齊
聚物不斷生成， sio _ 2膠體顆粒逐漸吸附在齊
聚物分子鏈上，當
聚合物鏈達到沉澱臨界鏈長時，由於相分離作用，從前驅物溶液中析出，同時sio _ 2膠體顆粒均勻的分佈在
脲醛
聚合物網路中，隨之沉澱出來，形成
脲醛sio _ 2復合微球。
A novel polyester thioure microcapsule was prepared using interracial polymerization with 1, 4 - benzenedicarbonyl diisothiocyanate and o - phenylenediamine. the influence of emulsifying agent, stirring speed and drug content on microcapsule performance were investigated
摘要以對苯二甲酰異硫氰酸酯與鄰苯二胺為原料，通過界面
聚合法合成了一種新型
聚硫
脲微膠囊，考察了攪拌速率、乳化劑用量、投藥量等因素對微膠囊粒徑及釋放性能的影響。
Code of practice for thermal insulation of roofs externally by means of sprayed rigid polyurethane or polyisocyanurate foam
採用噴塗剛性
聚氨基甲酸乙酯和
聚異三
聚氰
脲酸酯泡沫對屋頂外部進行隔熱的實用規程
And the value drop to the lowest at ph = 0. 8. as the increase of heat treatment temperature, the pore size distribution peak of sio2 microspheres is very narrow, meanwhile the specific surface area is the smallest before 160 c. the polymer template is removed at 350 c, so the pore structure of sio2 particles has a big change which involve the increase of specific surface area and the broaden of pore size distribution peak. with the continuous raise of temperature the sio2 network will shrink little, as a result the average pore size will decrease, but the specific surface area has no obvious change
結果發現：二氧化硅膠體顆粒均勻分佈於
脲醛
聚合物網路中，煅燒去除有機模板后微球表面變粗糙，而粒徑沒有明顯變化； ph值較小時，復合微球中
聚合物含量較大，而ph值較大時，得到復合微球結構鬆散，因此熱處理后的二氧化硅微球孔容及平均孔徑都較大，而在ph = 0 . 8時，得到最小值；武漢理工大學碩士學位論文隨著熱處理溫度的變化，小於160時，空分佈較窄，而比表面積較小，在350時，由於有機模板的去除，微球孔結構發生突變，比表面積明顯增大，而孔徑分佈變寬，溫度繼續升高時，二氧化硅網路發生收縮，平均孔徑變小而比表面積由於有機炭化物的完全去除沒有太大變化;微球中的微孔在熱處理過程中處于平衡狀態，分佈沒有太大變化。
Application research of polyurea elastomeric coatings on offshore steel structures
聚脲彈性體在海上鋼結構防腐蝕中的應用研究
Study on application of polyurea elastomer anti - corrosion paint to sea steel structure
聚脲彈性體防腐塗料在海上鋼結構中的應用研究
Abstract : in this paper, we introduce one - part polyurea concept and its rubber physical properties after the one - part polyurea cured, and the application of construction waterproof
摘要：本文簡要介紹了單組分
聚脲的概念，防水塗膜的物理性能，以及其在建築防水工程上的應用。
Our 10000m2 plant located on shanghai jinshan district had established itself as a base for developing researching and manufacturing grc frp spua products, replicas of rockworks, trees, animals, our 10000m2 plant located on shanghai jinshan district had established itself as a base for developing researching and manufacturing grc frp spua products, replicas of light - weight rockworks, trees, animals, realistic and fantasys sculptures special effects etc
公司位於金山區，擁有佔地1000餘平米的工業廠房，是集生產，加工，實驗，藝術創新的產品源頭基地，主要產品囊括： grc （低堿度硫鋁酸鹽纖維水泥） frp （玻璃鋼） spua （
聚脲）製作的輕體高模擬假山，樹木，動物。
Mainly used in sectors of pharmaceuticals, pescitide, textile, electroplating, photography, water tracer in oil fields, thinning agent, as intermediate for metal thiocyanates etc
用於抗菌素的分離，印染的擴散劑，有機合成的
聚合催化劑，也是製造氰化物亞鐵氰化物和硫
脲的原料。
The new waterproof and heat insulation building material - the study of polyurethane rigid foamed plastics
耐高溫
聚異氰
脲酸酯硬質泡沫塑料的制備
In japan, an amendment law on construction standards has been implemented, which is stipulated that the products containing formaldehyde should not be used indoors, including urea - formaldehyde resin, melamine resin and resorcinol resin
日本已開始實施建築標準法修正案，規定室內不允許使用含甲醛系列防腐劑的
脲醛樹脂、三
聚氰胺樹脂和間苯二酚樹脂等產品。
Rigid polyurethane and polyisocyanurate foam when dispensed or sprayed on a construction site - specification for dispensed foam for thermal insulation or buoyancy applications
施工現場配製與噴塗用硬
聚氨酯和
聚異三
聚氰
脲酸酯泡沫塑料.第2部分:絕熱或彈性配製泡沫塑料的規范
Influence of licl on the morphology, structure and properties of aliphatic polyurethaneurea
對脂肪族
聚氨酯
脲結構與性能的影響
According to the problems in current research, my works have four parts as following : 1. cds nanoparticles were synthesized by surface - modified with thiourea and stabilized by poly ( n - vinyl - 2 - pyrrolidone ) ( pvp ). the results showed that cds nanoparticles, which exhibited significantly quantum size effect and enhanced luminescence, were prepared through the surface modified with thiourea
鑒于目前使用苯硫酚修飾對cds納米粒子的熒光具有強烈的淬滅作用，而硫醇具有較強的毒性，本研究用硫脲作表面修飾劑，以聚乙烯吡咯烷酮（ pvp ）作穩定劑制備了粒徑分佈較均勻、性能穩定的cds納米粒子。
