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- Keywords neutual-alkaline papermaking;alum and rosin;premixing; 中碱性造纸;松香和明矾;预混和;
- alum and rosin 松香和明矾
- The wet-end chemistry affecting sizing effect, such as sizing sequence, charge of alum, cationic starch and rosin emulsion size was studied in this paper. 对分散松香胶施胶过程中的湿部化学进行了初步的探讨，研究了硫酸铝、分散松香胶、阳离子淀粉等的用量以及施胶顺序对脑胶效果的影响。
- The retention of anionic emulsion rosin sice ard development of sizing are gffected by alum and cationic polymers,(such as sine fixing agats and retention aids). 阳离子乳液型松香胶的留着和呈现施胶效果受硫酸铝和阳离子聚合物(胶料固着剂和助留剂)的影响。
- Good knowledge of alum and grey iron casting and machining processes. 熟悉铝合金和灰铁铸造和加工流程。
- Conclusion: Alum and dried alum have significant bacteriostatic effect in... 结论:白矾及枯矾在体外有明显的抑菌作用。
- Objective:To explore the bacteriostatic effect of alum and dried alum in vitro. 目的:探讨白矾及枯矾体外抑菌作用。
- Kinds of flotation collectors modified with fatty acid using oleic oil and rosin acid as raw materials were introduced. 摘要介绍了几种脂肪酸类矿物捕收剂改性产物，它们分别以油酸和松香酸作为出发原料。
- Alkyd resins were prepared from maleopimaric acid(MPA)which consists of maleic and rosin instead of phthalic anhydride. 采用松香和顺酐反应合成的马来海松酸(MPA)代替苯酐制备醇酸树脂涂料。
- Practical experience of solving the pitch trouble by adding alum and talc in the mill is also reported. 对实际生产中主要采用的添加硫酸铝和滑石粉并辅以必要的机械控制方法进行了总结。
- Result showed that the sizing performance was related with the kind of pulps and the amount of aluminium sulfate and rosin soap. 结果表明:纸浆种类对自制皂胶的施胶性能具有较大的影响,而且施胶效果也与施胶剂、硫酸铝的添加量有关。
- Aluminium borate melting block was prepared by the combination of boric acid,anhydrous alum and potassium sulfate. 采用硼酸和无水明矾及硫酸钾压块、焙烧、制备硼酸铝熔块。
- Conclusion: Alum and dried alum have significant bacteriostatic effect in vitro. 结论：白矾及枯矾在体外有明显的抑菌作用。
- The Complete Sets of equipment for Preparing Clay-bonded Sand Selfhardening Sand and Sodium Silicate-bonded Sand and bot Sand reclamation of precoated Sand and rosin nolding Sand. 铸造粘土砂、树脂砂、水玻璃砂处理成套设备及热法覆腊砂和树脂砂热法再生成套设备。
- Polyelectrolytes as coagulant aids lower the required dosages of alum and auxiliary chemicals. 高分子电解质作为凝结剂援助更低白矾和辅助化学制品必需的剂量。
- The complete sets of equipment for preparing Clay-bonded Sand Selfuardening Sand and Sodium Silicate-bonded Sand and hot sand reclamation of Precoated Sand and rosin molding Sand. 铸造粘土砂、树脂砂、水玻璃砂处理成套设备及热法覆膜砂和树脂砂热法再生成套设备。
- The most popular wool mordants in current use are alum and cream of tartar and they are quite safe. 现在最流行的羊毛媒染剂是明矾和酒石膏，而且这些都很安全。
- Objective: To explore the bacteriostatic effect of alum and dried alum in vitro. 目的：探讨白矾及枯矾体外抑菌作用。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- It is a fact of life and you must face it. 这是严酷的现实，你必须面对它。
