Study of influence of cross - linking agent preparation on property of pillared montmorillonite 鈦交聯蒙脫石納米復合材料的合成與物理性能
It has been studied that the effect of component , cross - linking agent pg and dvb and initiating agent bpo on mechanical properties of pu ( based polyether ) / ps ipns 研究了組成、交聯劑pg和dvb以及引發劑bpo對基于聚醚pu用s互穿網絡聚合物材料力學性能的影響。
But when the content of the cross - linking agent is 1 ~ 3 % , it is suitable . when its use level is too much , the performance of coating is greatly reduced because of too much cross linkage 但交聯劑有一合適的用量( 1 3 ) ,當交聯劑用量過大時,由于過度交聯,反而使涂料性能明顯降低。
The investigation showed that nanofiltration membrane with good character can be made when concentration of coating solution is 1 % - 2 % , coating time is 1 hour , concentration of cross - linking agent is 0 . 5 % and cross - linking time is 5 hours 研究表明涂層液濃度在1 2 ,浸涂時間1h ,交聯劑濃度為0 . 5 ,交聯時間5h的條件下可以得到性能較好的納濾膜。
We selected styrene as monomer , diethylene glycol dimethacrylate as cross - linking agent . the copolymerization technique was used in preparing the probe . the ph fluorescent indicator was immobilized in the probe as the sensitive element 我們選擇苯乙烯為聚合單體,雙甲基丙烯酸一縮二乙二醇酯為交聯劑,采用交聯共聚技術制備氨多孔塑料傳感探頭,并將ph熒光指示劑固定于共聚體中作為氨的敏感元素。
The article is focused on the modification studies of chitosan ultrafiltrating compound membrane ( cs compound membrane ) on the basis of preceding researches . it includes adding cross - linking agent , modification agent , acylation agent in the casting membrane solution . the result shows that the new modification membrane are better in the phychemical properties and separation properties 本文是在前面研究的基礎上,著重進行了聚氨基葡糖復合超濾膜(簡稱cs復合膜)的改性研究.通過從交聯劑、改性劑、乙酰化試劑等方面的改性來尋求最佳的鑄膜液配方.結果表明,改性后的膜能達到較好的物化性能和分離性能
Pdmaema can be cross - linked by quaternization to develop a positively charged dense network structure . according this mechanism , pdmaema / psf positively charged nanofiltration membrane was developed by interfacial polymerization using psf plate macrofiltration membrane as support layer , pre - polymer of pdmaema water solution as coating solution , p - xylylene dichloride / heptane as cross - linking agent 根據這一機理,以psf平板微孔膜為基膜, pdmaema預聚物水溶液為涂層液,以對二氯芐正庚烷溶液為交聯劑,采用界面聚合法制備了pdmaema psf荷正電復合納濾膜。
The results indicated that montmorillonite was intercalated by polyacrylic acid molecular . section two : preparation of polyacrylic acid / acrylamide / montmorillonite ( paa / am / mmt ) water absorbent hybrid by aqueous solution intercalated polymerization high water absorbent polyacrylate copolymer was prepared by aqueous solution intercalated copolymerization . in this reaction , the monomers were the partially neutralized acrylic acid ( aa ) and acryl amide ( am ) ; the cross - linking agent was diacryl ethylene ( egda ) 第二節溶液插層共聚制備聚丙烯酸鹽/丙烯酰胺/膨潤土雜化吸水材料及其性能研究首次利用溶液插層共聚制備了二丙烯酰基乙二醇酯( egda )交聯的聚丙烯酸鹽/丙烯酰胺/膨潤土( paa / am / mmt )雜化吸水材料。
In the second part , we studied the plastic porous probe for ammonia measurement , which was made by methyl methylacrylate . we selected methyl methylacryte ( mma ) as the monomer , diethylene glycol dimethacrylate ( dgdm ) as cross - linking agent and toluene as the inert solvent . the probe was prepared by a copolymerization technique 第二部分為以甲基丙烯酸甲酯為單體的多孔塑料光纖傳感探頭的研究,在這一部分里,我們以甲基丙烯酸甲酯為單體,雙甲基丙烯酸一縮二乙二醇酯為交聯劑,以甲苯為致孔劑,采用交聯共聚技術制備氨多孔塑料光纖傳感探頭,并將ph熒光指示劑藻紅固定于共聚體中。
Technique and condition of developing membrane such as thickness of support layer , concentration of coating solution , coating time , ph value of coating solution , concentration of small molecular additive in coating solution , concentration of cross - linking agent , cross - linking time and composite times were studied 對制膜工藝條件如基膜厚度、涂層液濃度、浸涂時間、涂層液ph值、涂層液中小分子添加劑的含量、交聯劑類型、交聯劑濃度、交聯時間及復合次數對納濾膜性能的影響進行了研究。