本品是以硫磺為調(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。具有較好的抗撕裂，抗曲撓性?？捎糜谥圃旄黝愊鹉z制品如輸送帶、多鍥帶、V帶及同步帶和礦纜護(hù)套等。本品類似于美國(guó)杜邦公司GNA型,日本電化公司PM-40型氯丁橡膠。
執(zhí)行標(biāo)準(zhǔn)：GB/T14647-2008
項(xiàng)目 | 指標(biāo) | ||
門(mén)尼粘度ML ML(1＋4)100℃ | CR1211 | CR1212 | CR1213 |
20-40 | 41-60 | 61-75 | |
門(mén)尼焦燒，≥MSts min | 30 | ||
拉伸強(qiáng)度，≥MPa | 24 | ||
500%定伸應(yīng)力，MPa | 2-5 | ||
扯斷伸長(zhǎng)率，≥% | 900 | ||
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(chǔ)存：自生產(chǎn)之日起，20℃以下，儲(chǔ)存期為一年，20-30℃，儲(chǔ)存期為半年。
Polychloroprene Rubber CR121
Description：A sulfur-modified polychloroprene rubber with low to medium crystallization rate.The density is 1.23. It has good resistance to tear and flexure. It is similar to Du Pont' s neoprene GNA and Denka's PM-40.
Application：For making rubber products such as conveyor belts, ribbed belts belts,V belts, timing belts, mine cable sheath, etc.
Product Standard：GB/T14647-2008
Specification:
Item | Index | ||
Mooney Viscosity | CR1211 | CR1212 | CR1213 |
20-40 | 41-60 | 61-75 | |
Mooney Scorch（MSt5, min） | 30 | ||
Tensile strength，≥MPa | 24 | ||
Modulus at 500%，MPa | 2-5 | ||
Elongationat break，≥% | 900 | ||
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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