本品是以十二碳硫醇为调节剂的氯丁二烯聚合物，密度1.23，乳白色或米黄色片状物。本品除具有CR244的性能外，可与甲基丙烯酸甲酯（MMA）、丙烯酸（BA)等活性单体接枝共聚，改善氯丁胶粘剂对PVC、PU、EVA等合成材料的粘接性能。
执行标准：Q/CHJT.J03.03.03-2022
项目 | 指标 | ||
15%甲苯溶液粘度，mpa·s | Ⅰ型 | Ⅱ型 | |
1000-5500 | 5501-10000 | ||
剥离强度，≥N/m | 帆布/帆布 | 70 | |
人造革/人造革 | 20 | ||
挥发份，≤% | 1.2 | ||
包装：牛皮纸聚丙烯复合袋，净重25kg/袋。
储存：自生产之日起，20℃以下，储存期为一年，20~30℃以下，储存期为半年。
Polychloroprene Rubber CR248
Description：A dodecyl mercaptan modified polychloroprene rubber.The density is 1.23.
Application：In addition to the performance of CR244,it can be grafted and copolymerized with methyl methacrylate(MMA).acrykic acid(BA) adn other active monomers to improve the adhesion performance of chloroprene adhevive to improve the adhesion performance of chloroprene adhesive to PVC,PU,EVA and other synthetic materials.
Product Standard：Q/CHJT.J03.03.03-2022
Specification:
Item | Index | ||
Viscosity in 15% toluene solution，mpa·s | Ⅰ | Ⅱ | |
1000-5500 | 5501-10000 | ||
Peel Strength，≥N/m | canvas /canvas | 70 | |
artificial leather / artificial leather | 20 | ||
Volatile，≤% | 1.2 | ||
Appearance | Milk white chips | ||
Packing: Packed in compound bags of kraft and polypropylene, 25kg net each.
Shelf Life: One year below 20°C and half a year between 20~30°C
from the date of production.
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