Polydadmac.

Feem ntau nws yog siv ua flocculant thiab qee zaum ua ke nrog algicide. Cov npe lag luam suav nrog agequat400, St flocculant, pink cure, cat floc, thiab lwm yam. PDMDAAC muaj cov nyhuv synergistic nrog wscp thiab poly (2-hydroxypropyl dimethyl ammonium chloride). 413 feem ntau yog siv ua coagulant pab hauv kev kho dej hauv kev lag luam. Tom qab ntxiv alum coagulant, cov tshuaj coagulant tuaj yeem txuag tau 30%. Piv txwv li, tom qab ntxiv 20 mg / L polyaluminium chloride, ntxiv 0.1-0.2 mg / L Polydimethyldiallyl ammonium chloride kom ua haujlwm tau zoo dua.

Qhov hnyav molecular ntawm PDADMAC feem ntau yog 50000 txog 700000, thiab qhov viscosity dynamic ntawm 20% aqueous kua yog 50-700cps; Qhov hnyav molecular ntawm cov khoom nrog qib siab ntawm polymerization tuaj yeem ncav cuag 1000000 txog 300000, thiab qhov viscosity dynamic yog 1000-3000 CPS. Qhov viscosity intrinsic yog 80-300ml / g, thiab qhov viscosity siab tuaj yeem ncav cuag 1440ml / g. Cov khoom feem ntau yog 10-50% daws nrog qhov ceev ntawm 1.02-1.10 g / ml. Cov koob tshuaj hauv dej haus yuav tsum tsawg dua 10mg / L (Taiwan).

Tus cwj pwm viscosity ntawm PDMDAAC aqueous kua muaj cov nyhuv polyelectrolyte tseem ceeb. Lub intrinsic viscosity txo qis nrog rau qhov nce ntawm cov ntsev concentration ntxiv. Thaum NaCl concentration ntau dua 1 m, qhov kev hloov pauv ntawm intrinsic viscosity nrog rau cov ntsev concentration ntxiv yog qhov me me. Lub intrinsic viscosity ntsuas los ntawm Ubbelohde viscometer hauv 1 M NaCl kua ntawm 30 ℃, thiab qhov nruab nrab viscosity molecular hnyav tuaj yeem tau txais raws li cov mis.

Qhov hnyav molecular ntawm PDMDAAC tuaj yeem tau txais los ntawm cov mis hauv qab no, uas qhov viscosity intrinsic yog ntsuas hauv 1 M NaCl kua ntawm 30 ℃: 407.

[ η] = 1.12 * 10-4M0. yim caum ob

Huang thiab Reichert tau kawm txog qhov poob phaus thermal ntawm PDMDAAC hauv ntau qhov kub sib txawv. 53.3-130 ℃ poob phaus yog vim poob dej; Khaws tsis hloov pauv ntawm 130-200 ℃; Qhov poob phaus ntawm 200-310 ℃ yog 41.4%, uas yog vim thermal decomposition. Tsis muaj qhov melting point tau pom thaum lub sijhawm tag nrho cov txheej txheem cua sov. Qhov kub hloov iav ntawm PDMDAAC nrog qhov hnyav molecular ntawm 33 kDa yog 8 ℃.

PDADMAC tsis muaj tshuaj lom rau cov ntses rainbow trout ntau dua li chitosan (Waller et al. 1993). Txawm li cas los xij, PDADMAC rau kev kho dej muaj kev txwv rau cov ntsiab lus monomer.

PDMDAAC hauv Suav teb muaj cov monomer ntau. PDMDAAC ntawm ob lub Hoobkas tshuaj lom neeg tau raug sim thiab pom tias cov ntsiab lus monomer yog 12.5% ​​thiab 7.89% (xam raws li khoom khov. Hloov mus rau 40%, cov ntsiab lus hauv cov khoom yog 5.0% thiab 3.2%), uas loj dua li American Standard ntawm 0.2% thiab European standard ntawm 0.5%. 380 rau cov khoom uas muaj cov ntsiab lus monomer tsis tau teev tseg, cov ntsiab lus monomer yuav siab dua. Qhov viscosity intrinsic ntawm PDMDAAC uas muaj monomer yog muab los ntawm cov mis hauv qab no: 411.

log[ η'] = log[ η] + lgX';

[380] Brown et al., 2007; Puschner et al., 2007.

[407] Zhao Huazhang, Gao Baoyu Kev tshawb fawb txog kev nce qib ntawm dimethyl diallyl ammonium chloride (DMDAAC) polymer Kev kho dej hauv kev lag luam xyoo 1999, (6).

[411] Jia Xu, Zhang Yuejun Cov nyhuv ntawm kev hloov pauv monomer rau ntawm qhov viscosity ntawm Polydimethyldiallyl ammonium chloride Journal of Nanjing University of Technology (NATURAL SCIENCE EDITION) 2010, 34(6), 380-385.

[413] Daim Ntawv Pov Thawj Tebchaws Meskas 5529700, Cov Khoom Siv Algicidal lossis Algistatic Uas Muaj Quaternary Ammonium Polymers. ib txhiab cuaj puas cuaj caum tsib.