播放中国国产国语纯一级黄片免费看, 大鸡吧快来啊阿啊阿啊黄片在线播放, 中文精品日韩网站在线观看视频免费, 别揉我奶头~嗯~啊~一区二区三区,AV无码播放一级毛片免费古装,亚洲春色一区二区三区,91大神极品,美国一级大黄一片免费下载,午夜爽爽爽男女免费观看软件

化學(xué)配方數(shù)據(jù)庫
配方類型: ADHESIVES
配方說明: Wood Adhesive With a Long Open Time
配方組成: Polyvinyl Alcohol, 15% solution/20.00 Pounds
Phenol/1.60 Pounds
Total Solids/52-54%
Water/q.s.
Daratak 56L/200.00 Pounds
Santicizer 160 Plasticizer/2.00 Pounds
配制方法: Add Santicizer 160 and phenol in mixer and stir until phenol is all dissolved. Add Daratak 56L to mixture of plasticizer and phenol and stir until smooth. Add polyvinyl alcohol solution and stir until a homogeneous mixture is obtained. Use water to adjust total solids and viscosity. Prepare a stock solution of polyvinyl alcohol by slurrying 5.5 pounds of Elvanol 51-05 and 9.5 pounds of Elvanol 72-60 in 85.0 pounds of water at room temperature with good agitation. Heat for 20-25 minutes at 185-190F. Add water for viscosity or solids control.

返回數(shù)據(jù)庫查詢
QQ: 2241752642
微信二維碼
電話: 19906633110