Nurchem ACM RK001

Nurchem ACM RK001

  • Description

RK series Acrylic rubber (ACM) are produced by the advanced technology of high-energy ionizing radiation method. The synthesis process is advanced and unique, which do not need other heat source to control the system temperature, further ensuring the stable and excellent performance of the product. As a kind of Carboxylic acid type of Acrylic Rubber, RK series ACM are cured using an amine-based vulcanization system. RK series ACM afford outstanding resistance to heat, oil (lubricants) and weather.

Compounds of RK series ACM are typically rated at 175 °C for heat resistance, with oil swell values around 50% in IRM 903 oil. The properties of RK series ACM make it well suited for a wide range of automotive applications, including hoses, tubes, seals and gaskets.

Major Performance Properties and Applications

RK001 has the advantages of carboxylic acid RK series products, including ECO friendly, high strength, high tensile strength, low pressure transformer. It has stable raw rubber batch and excellent processing performance.

RK001 has better resistant to high temperatures and can be used in producing the automobile gaskets, etc.


Product Properties

AppearanceMilky white/pale yellow elastic flocculent or massive
Mooney Viscosity (ML(1+4) 100℃)45-50
Volatiles (wt%)≤1.0
Ash (%)≤0.5
Tg (℃)-22


Compound and Vulcanization Properties

Compounds of RK001 are formulated and processed by customers to meet their own specific performance requirements. A typical compound of RK001 is reviewed in Table1, following by vulcanizate performance test data (Table 2) that can help end-users evaluate the potential fitness of similar compounds for their own applications. The compound is prepared by internal mixer and open mill.


Table1 – Sample Compound, RK001

Carbon Blanc N55050
Plasticizer TP9510
Anti-oxidant 4452
Releasing Agent ACROM Tmv2
Releasing Agent ACROM 18D1.5
Curative HMDC-70GA0.8
Accelerator DOTG-75GA2.5
Stock Properties
Discharge Temperature(℃)91.6
Mooney Viscosity (ML(1+4) 100℃)46.5
Mooney Scorch (120℃,t5/min)25.2
Scorch Index (120℃,△t30/min)16.2
Vulcanization behavior (175, 60min) 


Table 2 Physical Properties of Vulcanizate

Original Values
Hardness (Shore A)41
Tensile Strength (Mpa)9.7
Elongation (%)524
300% Modulus (MPa)6.7
Tensile set (%)15
Tear Strength (kN·m-1)24.7
Resilience (%)11
Density (g·cm-3)1.223
Abrasion (Shore) △V(cm3)0.402
150℃×22h Compression Set (%)12
Aged 72 Hrs at 175°C in Air
Hardness (Shore A)60
Hardness Change (Shore A)+19
Tensile Strength (Mpa)8.4
Tensile Strength Change (%)-13.4
Elongation (%)361
Elongation Change (%)-31.1
Tensile set (%)15
Tensile set Change (%)0
Aged 72 Hrs at 25°C Immersed in IRM903 Oil
Hardness (Shore A)37
Hardness Change (Shore A)-4
Tensile Strength (Mpa)9.2
Tensile Strength Change (%)-5.2
Elongation (%)523
Elongation Change (%)-0.2
Mass Change (%)0.2
Tensile set Change (%)0.1
Aged 72 Hrs at 150°C Immersed in IRM903 Oil
Hardness (Shore A)33
Hardness Change (Shore A)-8
Tensile Strength (Mpa)9.5
Tensile Strength Change (%)-2.1
Elongation (%)475
Elongation Change (%)-9.4
Mass Change (%)3.9
Tensile set Change (%)5.9


Table3 – Tg and Tb of Crude rubber and Vulcanized rubber

Tg of Crude rubber (℃)-19.1
Tg of Vulcanized rubber (℃)-29.0
Tb of Vulcanized rubber (℃)-22.0