When the sodium lauryl sulfate and p-octyl polyethylene glycol phenyl ether is used and its level in 3% and 6: 4 ratio, the polymerization process has the lowest coagulum and the highest monomer conversion. Higher reaction temperature and more level hydroxyl value lead to more coagulum, the latter also lead to larger particle size. The acid value has larger influence on viscosity and coagulum, there exist a best range. The emulsion particle size is larger for its hydrophilicity, most of its particles are connected together.

在含較高親水單體的乳液聚合體系中亚洲毛片不卡88AV在线，難以制得穩(wěn)定的預(yù)乳化液www.黄欧美，不能采用工業(yè)生產(chǎn)中常用的預(yù)乳化工藝亚洲国产综合精品一区青草，而只能采用混合單體直接滴加的方法亚洲欧美强伦一区；由于單體混合物的親水親油值較高国产在线拍偷自拍无码，用陰離子型乳化劑十二烷基硫酸鈉和非離子型乳化劑聚乙二醇辛基苯基醚混合www.91sese婷，用量為單體總量的3％，且比例在6：4時(shí)黄片一级二级三级黄，乳液聚合時(shí)具有最低的凝聚物含量和最高的單體轉(zhuǎn)化率最新91地址偷自在线永久入口；乳液聚合反應(yīng)溫度升高，可以提高單體轉(zhuǎn)化率国产熟在线视频，增加反應(yīng)速度AAA黄色视频在线观看，但凝聚率相應(yīng)提高；隨著羥基單體含量的增加8x国产精品V片在线，聚合過程中凝聚率增加精品国产免费看，聚合物乳膠粒平均直徑增加；羧基單體有一個(gè)最佳的用量（2.6％）国产在线你懂得，過高或過低凝聚率均提高在线日韩成人电视播放网站视频免费；羧基含量對(duì)乳液的粘度有較大的影響，當(dāng)羧基含量較低時(shí)人人草人人干人人射，羧基含量增加狼友视频入口首页面，乳液粘度增加明顯；含羥基乳液粒子由于含親水基團(tuán)較多欧美一级A片视频网，使得乳膠粒徑增大美国av毛片，乳膠粒子大多數(shù)互相凝聚在一起亚洲校园欧美国产另类性色，處于凝聚態(tài)。

Effects of reaction temperature, volume ratio of water to isobutylene and linear flowrate of Ca raffinate on activity of the catalyst were studied.

試驗(yàn)結(jié)果表明87人人操人人爱，異丁烯催化逆流水合制叔丁醇的適宜操作條件為：反應(yīng)溫度80～90℃好吊操国产精品，水油體積比為4～5，抽余C4烴的流速為0.45～0.55mm／s久艹只有精品。

The experimental results showed that under the reaction temperature of 80℃,using catalyst 5 % of the mass of turpentine,reaction time of 10 h,turpentine:solvent:assistant:water of 1∶1∶1∶2,the conversion ratio of 90 %,the selection of α-Terpineol production was 64.96 %,and ΔHφf,g and Sφg were estimated as well...

實(shí)驗(yàn)結(jié)果表明国产精自拍，在反應(yīng)溫度80℃，催化劑用量為松節(jié)油質(zhì)量的5%变态另类一区二区三区不卡，反應(yīng)時(shí)間10 h亚洲激情图片视频，松節(jié)油∶溶劑∶助劑∶水為1∶1∶1∶2時(shí)，其α-蒎烯的轉(zhuǎn)化率為90%过产自拍视频在线，生成α-松油醇的選擇性為64.96%韩国日本黄色视频。并對(duì)α-蒎烯和松油醇理想氣體的△Hfφ，g欧美丝袜在线第一页、Sgφ進(jìn)行了估算国产视频92，為今后的理論研究提供了數(shù)據(jù)支持。

The effects of reaction temperature, space velocity, molar ratio of water to methanol, and reaction time on the performance of the micro reactor were investigated.

試驗(yàn)研究分析了反應(yīng)溫度在线免费观看的黄页、進(jìn)料速度十八禁成年无码免费网站深添、水醇比（水和甲醇的物質(zhì)的量的比）、反應(yīng)時(shí)間對(duì)甲醇水蒸氣重整制氫微型反應(yīng)器性能的影響亚洲高清乱码午夜电影网制服。

The results show that myristic acid radical anion of precursor Zn0.78 Al0.2220.22c13h27COO0.81H2O can be almost completely replaced by complex anion [La(TiW11 O39)2]^3- under special controlled reaction conditions.

結(jié)果表明美足AV无码一区二区，該產(chǎn)物中[La(TiW11O39)2](上標(biāo) 13-)配陰離子沿其長軸垂直于層板的方向分布于水滑石層板間，產(chǎn)物有規(guī)整的層狀結(jié)構(gòu)精品国产一区二区三区国产区、大的層間距(d003=3.29nm)久久黄色国产精品、良好的結(jié)晶度和熱穩(wěn)定性，產(chǎn)物對(duì)二甘醇與苯甲酸的酯化反應(yīng)亚洲婷婷在线视频、二甘醇的脫水環(huán)化反應(yīng)和苯甲醛的氧化反應(yīng)具有良好的催化性能国产精品久久无码HD毛片。

Under optimal conditions: reaction temperature 80-90 ℃,V ∶V 4-5 ,linear flowrate of C4 raffinate 0.45-0.55 mm/s, conversion of isobutene can ...

試驗(yàn)結(jié)果表明，異丁烯催化逆流水合制叔丁醇的適宜操作條件為：反應(yīng)溫度80~90℃国产精品特级女人18毛片A毛片，水油體積比為4~5国产激情无码视频一区二区三区，抽余C4烴的流速為0.45~0.55mm/s。

A novel combination of PVA and polystyrene sulfonic acid is also realized by blending method.

在乙醇—水混合物的滲透蒸發(fā)分離中涩涩视频A，PVA表現(xiàn)出良好的阻醇性能在线视频色九色，這意味著PVA本身可能具有與我們的要求相近的親、憎水比例激情无码国产一区二区。

The effects of different of categories surfactants, the proportion of surfactant and cosurfactant , the chain lengths of alcohol and alkane, temperatures and pH values on the W/O microemulsion phase areas are systematically studied in the dissertation. SEM and laser scatting techniques are used to verify particles'sizes of W/O microemulsion. Consequently, a system TritonX-100/n-C〓H〓OH (weight ratio 1: 1)/C〓H〓/H〓O is obtained which is a stable system with relatively large W/O microemulsion phase area.

本文系統(tǒng)研究了表面活性劑種類欧美性交黄、助表面活性劑的鏈長、表面活性劑和醇的配比99精品视频在线播放、烷烴的鏈長以及溫度91视频精品免费品全正版、pH值等對(duì)W/O微乳液相區(qū)域的影響大波美女网站，并用SEM、激光光散射等對(duì)微乳液粒度進(jìn)行了表征一级国产特黄录像，從而獲得一種穩(wěn)定的视色4s影院在线观第一视频看、W/O微乳液區(qū)域較大的體系：壬基苯酚聚氧乙烯醚(TritonX-100)/正戊醇(質(zhì)量比1：1)/環(huán)己烷/水體系。

In the end, the synthesis condition and influential factors of PU-titania (TiO2) process, such as manufacturing sol (including the amount of water, the amount of PU/Titanium butyrate, the concentration of the solution, the pH value, the kind of alcohol), aging process, theoretical analysis of the dipping process, dry and heat treatment of the gelation, were also discussed especially. FT-IR国产精品无码久久综合网爱天下、SEM爱情岛伦坛自拍亚州AV无码入口、TEM、DLS techniques were applied to analyze and study the reaction mechanism and watch the surface and section of the PU-TiO2 membrane. According to above, it was inferred that PU-TiO2 membrane (containing K600) was better composite.

本文采用原位合成法制備了聚氨酯-二氧化鈦水分散復(fù)合體国产古装一级牲交高潮片，并著重對(duì)影響制備穩(wěn)定透明的復(fù)合體的因素（包括加水量黄片视频进入、醇的加入量、pH值亚洲欧美日韩精品视频、聚氨酯/鈦酸四丁酯投入量、醇種類）進(jìn)行討論a片黄色片一级片欧美，利用紅外光譜技術(shù)分析聚氨酯-二氧化鈦分散復(fù)合體的結(jié)構(gòu)欧美在线精品视频a美国网站，動(dòng)態(tài)光散射技術(shù)與掃描電鏡分別表征復(fù)合分散體的粒徑大小與分布及復(fù)合膜的表面形態(tài)，結(jié)果顯示含K600的聚氨酯-二氧化鈦體系復(fù)合情況良好亚洲视频在线观看视频。

The synthesization technics of MPEG- MAA was studied in this paper,which is an important intermediate used for preparation of polycarboxylate superplasticizer.

本文對(duì)制備聚羧酸系減水劑的重要中間體——甲基丙烯酸聚乙二醇單甲醚酯的合成工藝進(jìn)行了研究WWW.午夜一级片.COM，考察了反應(yīng)時(shí)間、催化劑對(duì)甲苯磺酸的用量色网国产、阻聚劑對(duì)苯二酚的用量jizzjizz18、反應(yīng)溫度及甲基丙烯酸與聚乙二醇單甲醚的用量比對(duì)酯化率的影響。