RPM - Rimpex Rubber

Raw MV
(ML1+4, 100℃)

Mixed Soap of Rosin Acid and Fatty Acid

Compounded Properties

Compound MV
(ML1+4, 100℃)

Rheometer
(160℃, ARC±1)

Vulcanization Properties

300% Modulus
(kgf/cm2)

Tensile Strength
(kgf/cm2)

Tear Resistance
(B-Type, kg/cm)

Compression Set
(100℃×70Hrs, 25%def., %)

Flex Crack Resistance *5)

*1) SBR 100, ZnO 3, S/A 1, HAF Black (IRB#7) 50, Accelerator TBBS 1.00, Sulfur 1.75, Total : 156.75
*2) SBR 137.5, ZnO 3, S/A 1, HAF Black (IRB#7) 68.75, Accelerator TBBS 1.38, Sulfur 1.75, Total : 213.38
*3) SBR 150, ZnO 3, S/A 1, HAF Black (IRB#7) 75, Accelerator TBBS 1.50, Sulfur 1.75, Total : 232.25
*4) 145°C*35min, Press Vulcanization
*5) De Mattia Flexometer : Cut Growth 2mm→15mm, Flexes
*6) Akron Type Tester, cc/1000rev.
*7) Unmilled

Item Grade		1500	1500S	1502LL	1502	1507L	1507	1507H	1712L	1712C	1712	1712H	1721	1724	1778K
Bound Styrene(%)		23.5											40.0		23.5
Extender Oil	Type	-							Aromatic						Naphthenic
Extender Oil	PHR	-							37.5					50.0	37.5
Raw MV (ML1+4, 100℃)		52	52	44	52	30	35	40	35	46	49	53	54	53*7)	46
Stabilizer		Staining	Non-staining						Staining						Non-Staining
Emulsifier		RosinSoap		Mixed Soap of Rosin Acid and Fatty Acid
Coagulant		Salt-Acid
Specific Gravity		0.93	0.93	0.94	0.94	0.94	0.94	0.94	0.95	0.95	0.95	0.95	0.97	0.98	0.92
Compounded Properties		*1)							2*)					3*)	2*)
Compound MV (ML1+4, 100℃)		82	81	75	80	60	64	71	52	59	63	65	68	60	57
Rheometer (160℃, ARC±1)
ML(1bf.in)		15.1	15.6	14.3	15.4	11.7	12.3	12.8	11.1	12.3	13.5	13.6	12.7	12.7	13.5
MH(1bf.in)		49.8	49.2	49.6	51.7	47.6	47.9	47.6	34.7	35.6	37.0	37.4	35.5	35.1	36.0
ts1(min)		4.8	5.1	4.4	4.5	4.7	4.2	4.7	5.9	6.3	5.8	6.1	6.5	6.7	5.7
t'50(min)		12.8	11.3	10.5	9.5	11.6	10.6	11.6	10.2	10.6	9.9	10.7	11.3	11.5	11.3
t'90(min)		22.0	20.1	19.5	18.0	20.6	19.5	20.6	17.6	18.4	17.2	18.3	19.0	19.5	20.0
Vulcanization Properties		4*)
300% Modulus (kgf/cm2)		167	161	185	206	167	172	183	102	104	108	110	108	107	129
Tensile Strength (kgf/cm2)		300	305	293	300	279	284	290	233	232	243	243	240	232	221
Elongation(%)		500	510	430	410	470	470	460	590	570	580	570	600	570	460
Hardness(Shore-A)		72	72	72	72	71	71	71	63	63	63	63	65	66	60
Tear Resistance (B-Type, kg/cm)		54	54	50	52	50	50	51	41	42	42	43	44	44	45
Compression Set (100℃×70Hrs, 25%def., %)		51	52	47	49	50	51	52	53	51	50	49	50	50	53
Rebound(ASTM, %)		55	54	55	54	54	55	55	44	44	45	46	30	24	49
Flex Crack Resistance *5)		3×10`3`				4×10`3`				10×10`3`			9×10`3`	10×10`3`
Abrasion Loss *6)		0.20	0.20	0.20	0.20	0.18	0.19	0.20	0.14	0.15	0.14	0.17	0.19	0.19	0.15
1) SBR 100, ZnO 3, S/A 1, HAF Black (IRB#7) 50, Accelerator TBBS 1.00, Sulfur 1.75, Total : 156.75 2) SBR 137.5, ZnO 3, S/A 1, HAF Black (IRB#7) 68.75, Accelerator TBBS 1.38, Sulfur 1.75, Total : 213.38 3) SBR 150, ZnO 3, S/A 1, HAF Black (IRB#7) 75, Accelerator TBBS 1.50, Sulfur 1.75, Total : 232.25 4) 145°C35min, Press Vulcanization 5) De Mattia Flexometer : Cut Growth 2mm→15mm, Flexes 6) Akron Type Tester, cc/1000rev. 7) Unmilled


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