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CR232型氯丁橡膠

       本品是以二硫化二異丙基兩原酸酯或十二碳硫醇為調節劑的氯丁二烯聚合物,結晶速度中等,密度1.23,乳白色或米黃色塊狀物。具有較好的耐熱性和高溫穩定性。分為通用型和粘接型,通用型可用于制造各類淺色橡膠制品,如密封件、防塵罩、膠輥、襯里、水壩及膠管外層護套等橡膠制品和雜件。粘接型可與CR244混用,調節開放時間。本品類似于美國杜邦公司W型,日本電化公司M-40氯丁橡膠。

執行標準:Q/CHJT.J03.03.04-2022

通用型 

項目

指標

門尼粘度

ML(1+4)100

CR2321

CR2322

CR2323

CR2324

35-45

46-55

90-110

111-130

門尼焦燒,≥MSt5,min

11

11

拉伸強度,≥MPa

12

12

500%定伸應力,MPa

2-7

5-10

扯斷伸長率,≥%

750

550

揮發份,≤%

1.5

1.5

粘接型

項目

指標

 

10%甲苯溶液黏度mPa.s

CR 2323A

500-1500

CR 2324A

1501-2500

CR 2325A

2501-5000

揮發分質量分數,%         ≤

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 CR232

DescriptionA xanthogen or dodecyl mercaptan modified polychloroprene rubber with medium crystallization rate.The density is 1.23.It has good heat resistance and high temperature stability. Applied i-n both industrial and adhesive purposes, It is similar to Deka’s M-40 and Du Pont's neoprene W.

ApplicationIndustrial purposes for making light-coloured rubber products , such as seals,dust covers,rubber rollers,liners,rubber dams and hose outer sheath,etc;Adhesive purposes for mixing with CR244 to adjust the open time.

Product StandardQ/CHJT.J03.03.04-2022

Specification of industrial application:

Item

Index

Mooney Viscosity
ML(1+4)100℃ 

CR2321

CR2322

CR2323

CR2324

35-45

45-55

90-110

111-130

Mooney   Scorch(MSt5, min)

11

11

Tensile   strength,MPa

12

12

Modulus   at 500%, MPa

2-7

5-10

Elongationat   break,%

750

550

Volatile   matter,%

1.5

1.5

Appearance

milk white chips

 

Specification of adhesive application

Item

Index

 

Viscosity   in 10% toluene solution,mpa.s

CR 2323A

500-1500

CR 2324A

1501-2500

CR 2325A

2501-5000

Volatile,%

1.2

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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