采用聚甲基丙烯酸二甲氨基乙酯（PDM）为分离层材质， 1, 3, 5-三（溴甲基）苯（ TBB）为交联剂，聚醚砜（PES）超滤膜为基膜，快速制备PDM/PES纳滤膜，考察制膜条件（包括 PDM浓度、涂层时间、交联剂浓度、交联时间）对膜渗透性能的影响。", "ds_source": "
实验数据。", "ds_process_way": "
制膜材料PDM为实验室自制，PES超滤膜（截留分子量为50kDa）购自中科瑞阳膜技术公司。采用实验室自制纳滤膜评价设备，膜池为不锈钢材质，有效膜面积为19.6 cm2。配置浓度为1000 mg/L的MgSO4水溶液为原料液，操作温度25℃，0.9 MPa下预压2 h，在0.8 MPa下进行过滤测试。\n
\n记录一定时间内渗透液的体积，并根据式（1）计算膜水通量：J=V/(S×t) （1）式中，J表示水通量，单位L/(m2h)；V表示渗透液体积，单位L；S表示膜的有效过滤面积，单位为m2；t表示水通量测试时间，单位h。对无机盐的截留率按照式（2）计算：R=(c_f-c_p)/c_f ×100 （2）式中：R表示盐截留率，单位为%，Cf表示进料液电导率，Cp表示透过液电导率。", "ds_quality": "
(1)数据生产过程：将自制复合膜采用纳滤评价装置测量渗透液体积和电导率，计算获得通量和盐截留率。\n
\n(2)方法和标准规范：每个实验条件均进行3次平行实验。\n
\n(3)结果：PDM纳滤膜可快速制备，并有较好的脱盐性能。", "ds_acq_start_time": "2020-01-01 00:00:00", "ds_acq_end_time": "2021-09-30 00:00:00", "ds_acq_place": "天津市", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 83552, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "1a74da8a-af77-4f6b-a6ff-af4e24b68671.png", "ds_thumb_from": 0, "ds_ref_way": "杜润红，天津市聚甲基丙烯酸二甲氨基乙酯纳滤膜研制数据集（2020-2021年），国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2021，doi：10.12072/ncdc.MDBW.db0008.2021", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "d6a6694f-4988-40e1-ac47-a19692c05b3d", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 0, "publish_time": "2021-11-05 15:13:40", "last_updated": "2021-11-05 15:20:49", "protected": true, "protected_to": "2026-10-29 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.MDBW.2021.6", "i18n": { "en": { "title": "Tianjin dimethylaminoethyl methacrylate nanofiltration membrane development data set (2020-2021)", "ds_format": "", "ds_source": "
Experimental data.", "ds_quality": "
(1) Data production process: the self-made composite membrane was used to measure the permeate volume and conductivity by nanofiltration evaluation device, and the flux and salt rejection were calculated.\n
\n(2) Methods and standard specifications: three parallel experiments were conducted under each experimental condition.\n
\n(3) Results: PDM nanofiltration membrane could be prepared quickly and had good desalination performance.", "ds_ref_way": "", "ds_abstract": "
Using dimethylaminoethyl methacrylate (PDM) as separation layer material, 1,3,5-tris (bromomethyl) benzene (TBB) as crosslinking agent and polyethersulfone (PES) ultrafiltration membrane as base membrane, PDM / PES nanofiltration membrane was rapidly prepared. The effects of membrane preparation conditions (including PDM concentration, coating time, crosslinker concentration and crosslinking time) on membrane permeability were investigated.
", "ds_time_res": "", "ds_acq_place": "Tianjin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The membrane material PDM is self-made in the laboratory, and the PES ultrafiltration membrane (with a retained molecular weight of 50kDa) is purchased from zhongkerui Yang Membrane Technology Co., Ltd. The self-made nanofiltration membrane evaluation equipment in the laboratory is adopted. The membrane tank is made of stainless steel and the effective membrane area is 19.6 cm2. MgSO4 aqueous solution with a concentration of 1000 mg / l was prepared as the feed solution, the operating temperature was 25 ℃, preloaded at 0.9 MPa for 2 h, and the filtration test was carried out at 0.8 MPa.\n
\nRecord the volume of permeate in a certain time, and calculate the membrane water flux according to formula (1): J = V / (s) × t) (1) where, J represents water flux, unit: L / (m2h); V is the volume of permeate, in L; S is the effective filtration area of the membrane, in m2; T is the water flux test time, in H. The rejection rate of inorganic salt is calculated according to formula (2): r = (c_f-c_p) / C_ f × 100 (2), where R is the salt rejection rate, in%, CF is the feed liquid conductivity, and CP is the permeate liquid conductivity.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "季胺化反应", "纳滤膜" ], "ds_subject_tags": [ "水文化学" ], "ds_class_tags": [], "ds_locus_tags": [ "天津市" ], "ds_time_tags": [ 2020, 2021 ], "ds_contributors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_managers": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "category": "其他" }