这种变化主要是由下述原因引起的:PVA是一种水溶性结晶聚合物,其溶解是由于PVA分子链上带有大量亲水基团-OH,当它溶于水时,水分子能够进入PVA的分子链与-OH发生作用;PAA也是一种水溶性聚合物,其分子链上的-COOH以及中和后得到的-COONa的亲水性强于-OH,同时-COOH与-COONa体积都大于-OH,整体比较而言,PAA的水溶性...
氧化石墨烯增强PVA-PAA复合水凝胶的制备及性能研究 的聚乙烯醇-聚丙烯酸-氧化石墨烯(PVA-PAA-GO)复合水凝胶.结果表明:PVA-PAA-GO复合水凝胶具有多孔网状结构和良好的力学强度,随着GO含量的增加,复合水凝胶的力学... 陈广炎,陈凯,蔚然,... - 《材料导报》 被引量: 0发表: 2018年 ...
PAA/PVA纺丝,针头与接收板间有拉丝连一块了,针头溶液悬 只看楼主收藏回复 庭前幕雨过 初级粉丝 1 PAA/PVA纺丝,针头与接收板间有拉丝连一块了,针头溶液悬挂掉落是什么原因?是浓度小了吗? 送TA礼物 来自iPhone客户端1楼2020-09-02 13:01回复
DS2E-M-DC5V 原装现货 集成IC芯片 G2E-184P-H-M-US-DC5 批号 PVT422P、PAA191STR、AQV104AZ、PVD2352NS、AQV104AX、C770S、G3VM-63ER、G3VM-41LR6(TR10)、AQV221A、AQV225AX、AQV221AZ、AQV221N、PVA3354、PVA1054、PVN012、PBB150PTR、AQV259AX、PVD1352N、G2-DB01-SR、PBB190STR、AQY221N1S...
SCCP15ASMTP SSCMNNN015PGSA3 AQW214AZ PAA150STR PAA150SIC芯片 规格型号 SSCMANN001PGAA5-G3VM-62F1,G3VM-WFL、SSCMANN001PGAA5-LAA110STR,LAA120STR、SSCMANN001PGAA5-LH1512BAC,PAA110STR、SSCMANN001PGAA5-PBA150STR,TLP222A-2(LF1,、SSCMANN001PGAA5-AQW210AX,AQW210EHAX、SSCMANN001PGAA5-AQW210HLAZ...
Poly(vinyl alcohol) (PVA) was blended with poly(acrylic acid) (PAA) to improve its separation performance for propylene dehumidification. In this study, molecular simulation was employed to investigate the effect of the PAA content on the properties and separation performance of the membranes. Membr...
PVA/PAA/GO-COOH 里斜杠是什么意思啊
我最近在做一个PVA/PAA水凝胶，以过硫酸铵为引发剂，N,N'-亚甲基双丙烯酰胺交联剂。PVAAA=1:2, ...
中空纤维PVA／PAN复合膜填料的乙醇水溶液精馏性能
The permeation rate of gas feed first increased, and then fell down with the increase of the PAA content because of the rate-determining step changed from adsorption to diffusion.doi:10.1039/C4TA03687EDong, XiuqinLiu, QiaoCui, LiYu, Yingzhe...