本品是以十二碳硫醇為調節劑的氯丁二烯聚合物，密度1.23，乳白色或米黃色片狀物。本品除具有CR244的性能外，可與甲基丙烯酸甲酯（MMA）、丙烯酸（BA)等活性單體接枝共聚，改善氯丁膠粘劑對PVC、PU、EVA等合成材料的粘接性能。
執行標準：Q/CHJT.J03.03.03-2022
項目 | 指標 | ||
15%甲苯溶液粘度，mpa·s | Ⅰ型 | Ⅱ型 | |
1000-5500 | 5501-10000 | ||
剝離強度，≥N/m | 帆布/帆布 | 70 | |
人造革/人造革 | 20 | ||
揮發份，≤% | 1.2 | ||
包裝：牛皮紙聚丙烯復合袋，凈重25kg/袋。
儲存：自生產之日起，20℃以下，儲存期為一年，20~30℃以下，儲存期為半年。
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.
