Performance comparison of the same dispersant from different manufacturers-News-Jinzhou Bett Chemical Co .,Ltd-Jinzhou Bett Chemical Co .,Ltd

Performance comparison of the same dispersant from different manufacturers

2020-04-27 01:56:44

The quality of dispersant affects the quality of composite agent. The quality of the same dispersant from different manufacturers is different. We have done high temperature oxidation resistance experiments for the same dispersant from different manufacturers, the effect of dispersant on CCS and the dispersant on sludge to investigate the quality of dispersant.

1. High temperature antioxidant test

In order to make the experimental conditions more demanding, the experimental temperature was set at 180°, the oxygen flux was 200ml/min, the copper sheet was added to play a catalytic role, the oil sample viscosity value of 40° was detected at regular intervals and the weight of the copper sheet was observed

The test sample is：3% Dispersant + detergent + antioxidant + viscosity index improver +150N base oil

The following table shows the statistics and broken lines of the viscosity value of 40° in the high-temperature antioxidant experiment of the same dispersant from different manufacturers

Manufacturer	A manufacturer 154	B manufacturer 154	C manufacturer 154	D manufacturer 154
Initial viscosity	62.01	61.61	62.37	61.93
9h	61.33	62.07	62.13	62.13
12h	61.78	61.44	61.97	61.39
15h	61.56	61.25	62.33	61.78
18h	61.49	62.3	62.61	61.82
21h	62.01	61.60	62.98	62.13
24h	61.26	61.45	62.71	61.64
27h	62.15	62.42	62.78	60.64
30h	61.26	61.78	62.95	52.43
33h	60.56	61.65	62.12	57.16
36h	46.54	61.38	60.13	82.22
39h	62.30	60.74	62.31	251
42h	84.11	52.55	117.65
45h	173.8	97.66

Time of Oxidation	A manufactuer 154	B manufacturer 154	C manufactuer 154	D manufactuer 154
Initial Copper sheet weight	1.0724	1.1466	1.1266	1.1485
9h	1.0717	1.1467	1.1265	1.1483
12h	1.0712	1.1459	1.1261	1.1483
15h	1.0713	1.1463	1.1265	1.1481
18h	1.0714	1.1467	1.1268	1.1486
21h	1.0711	1.1460	1.1254	1.1475
24h	1.0711	1.1458	1.1256	1.1472
27h	1.0710	1.1462	1.1265	1.1481
30h	1.0705	1.1459	1.1259	1.1476
33h	1.0708	1.1456	1.1258	1.1449
36h	1.0706	1.1454	1.1259	1.1303
39h	1.0694	1.1456	1.1247	1.0839
42h	1.0895	1.1037	1.1137
45h	1.1271	1.0642

2. Effect of dispersant T154 on CCS from different manufacturers

Test condition：3% Despersant+150N

Group II base oil,CCS( -35°)=6469mpas

Manufatcuer

T154

CCS(-35°)= 7479mpas

CCS(-35°)=

7690mpas

CCS(-35°)=

7837mpas

CCS(-35°)= 7690mpas

3.Dispersion of dispersants from different manufacturers

Single dose dispersion experiment

1、Experimental samples: 1g dispersant +2g sludge +17g150N

2、Experimental environment: 150° oil bath

3、Experiment time: constant temperature stirring for 90min

4、Drying time: 80° drying environment for 120min

5、SDT=1/2(d2/d1+d"2/d"1)*100

Specification

Dispersion SDT is no less than	top quality	qualified product
Dispersion SDT is no less than	55	45

dispersant	SDT1	SDT2	SDT3	平均值
A manufactuer T154	70.38	69.56	72.66	70.9
B manufactuer 154	71.62	71.18	71.24	71.35
C manufactuer T154	67.47	67.92	69.5	68.3
D manufactuer T154	65.54	67.71	66.63	66.63

From the high temperature oxidation experiments, of dispersant CCS and dispersant dispersion experiment results, the influence of different manufacturers of dispersant quality have obvious difference, the quality of the dispersants affect the quality of the compound, we filter through the experiment to choose the best quality of dispersant, matching to the internal combustion engine oil compound, to make the quality of compound agent to achieve the optimal.