When using BT series organobentonite thickening rheological additive, users shall firstly determine appropriate type according to the polarity of solvent, then determine the application method according to dispersion conditions.
When using BT series organobentonite thickening rheological additive, please follow the steps hereunder:
. Determine the polarity;
. Select appropriate type;
. According to dispersion conditions, determine the application methods.
Application scope and Dispersion Conditions of BT Series Organobentonite Rheological Additive
Type |
Polarity |
Dispersion conditions |
Adding method |
| BT-818 |
Crude oil, diesel fuel |
Need high-speed dispersion |
add dry powder directly |
| BT-828 |
Mixed solvent of benzene, ester, ketone |
Need polar activator, dosage of ethanol (95/5) is 30%-35% of dry powder, need high-speed dispersion |
pregel |
| BT-838 |
Mixed solvent of benzene, ester, ketone |
Need polar activator, dosage of ethanol (95/5) is 30%-35% of dry powder, need high-speed dispersion |
pregel |
| BT-838C |
Solvent of benzene, ester, ketone; vegetable oil |
Need activator, dosage of ethanol (95/5) is 40%-60% of dry powder, need high-speed dispersion, need grinding to improve fineness |
pregel |
| BT-838A |
Mixed solvent of turpentine, gasoline, disel fuel, coal tar, white oil, Benzene, styrene, ester, ketone, ether, alcohol, etc; vegetable oil |
Need activator, dosage of ethanol (95/5) is 30%-35% of dry powder, need high-speed dispersion, need grinding to improve fineness |
pregel |
| BT-838B |
Mixed solvent of benzene, ester, ketone, ether, alcohol |
Need activator, dosage of ethanol (95/5) is 30%-40% of dry powder, need high-speed dispersion |
pregel or add dry powder |
| BT-838D |
Mixed solvent of benzene, ester, ketone, ether, alcohol |
Need activator, dosage of ethanol (95/5) is 30%-40% of dry powder, need high-speed dispersion |
pregel or add dry powder |
| BT-838F |
Mixed solvent of benzene, ester, ketone, ether, alcohol |
Need activator, dosage of ethanol (95/5) is 30%-40% of dry powder, need high-speed dispersion |
pregel or add dry powder |
| BT-827 |
Mixed solvent of benzene, alcohol |
Need activator, dosage of ethanol (95/5) is 40%-50% of dry powder, need high-speed dispersion, need grinding to improve fineness |
pregel |
| BT-838S |
Gasoline, mixed solvent of benzene, ester, ketone, ether, alcohol |
Needn't activator, but need high-speed dispersion |
add dry powder |
| BT-800 |
Gasoline, mixed solvent of benzene, ester, ketone, ether, alcohol |
Need activator, dosage of ethanol (95/5) is 30%-50% of dry powder, need high-speed dispersion |
add dry powder |
| BT-840 |
Mixed solvent of benzene, ester, ketone, ether, alcohol |
Needn't activator, but need high-speed dispersion |
add dry powder |
| BT-857 |
Petroleum solvent, vegetable oil, mixed solvent of benzene, ester, ketone, ether, alcohol, etc, halogenated hydrocarbon |
Need activator, dosage of ethanol is 30%-50% of dry powder, need high-speed dispersion |
pregel or add dry powder |
| BT-860 |
Benzene, ester, ketone, ether |
Needn't activator, but need high-speed dispersion |
add dry powder |
| BT-880 |
Mixed solvent of benzene, ester, ketone, ether, alcohol |
Needn't activator, but need high-speed dispersion |
add dry powder |
Remark: Acetone can also be used as polar activator. If water or alcoholketoneis not allowed in the formula,
carbonic allyl ester
or synthetic macromolecular dispersing agent such as Texaphor 963 or BYKanti-terra 203. etc can be used.
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