本品是以硫磺和二硫化二異丙基黃原酸酯為混合調(diào)節(jié)劑的氯丁二烯聚合物，結(jié)晶速度中偏低，密度1.23，米黃色或淺棕色塊狀物?？顾毫褟姸雀?，加工性能優(yōu)于硫磺調(diào)節(jié)型膠?？捎糜谥圃炷z管膠帶、電纜護套及其他橡膠制品等。本品類似于美國杜邦公司GW型膠。
執(zhí)行標(biāo)準：GB/T15257-2008
項目 | 指標(biāo) | ||
門尼粘度 ML（1+4）100℃ | CR3221 | CR3222 | CR3223 |
25-40 | 41-60 | 61-80 | |
門尼焦燒，≥MSt5,min | 25 | ||
拉伸強度，≥MPa | 25 | ||
500%定伸應(yīng)力，MPa | 2-5 | ||
扯斷伸長率，≥% | 800 | ||
揮發(fā)份，≤% | 1.5 | ||
灰分，≤% | 1.5 | ||
包裝：牛皮紙聚丙烯復(fù)合袋，凈重25kg/袋。
儲存：自生產(chǎn)之日起，20℃以下，儲存期為-年，20~30℃以下，儲存期為半年。
Polychloroprene Rubber CR322
Description：A sulfur and xanthogen mixed-modified polychloroprene rubber with low to medium crystallization rate.The density is 1.23.It has high tear strength, and has better processibility over sulfur-modified grade.It is similar to Du Pont’s neoprene GW.
Application：For making rubber products such as hoses,belts and cable sheath, etc.
Product Standard：GB/T15257-2008
Specification:
Item | Index | ||
Mooney Viscosity | CR3221 | CR3222 | CR3223 |
25-40 | 41-60 | 61-75 | |
Mooney Scorch(MSt5, min) | 25 | ||
Tensile strength，≥MPa | 25 | ||
Modulus at 500%， MPa | 2-5 | ||
Elongationat break，≥% | 800 | ||
Volatile matter，≤% | 1.5 | ||
Ash content，≤% | 1.5 | ||
Appearance | light brown 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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