detergent / cleaner

Features

Improvement of detergency
MMB improves cleaning power with small amount.
Effect on plastics
MMB does less damage to plastics compare to glycol ethers.
Improvement of stability
MMB reduces viscosity and stabilizes conc. formulations.
Stability under alkaline and acidic condition
MMB is stable at high and low pH.
Evaporation profile
Evaporation rate can be controlled with MMB.

Applications

Industrial & Institutional
metal parts
dry cleaning
graffiti
printing machines
hands
linen
Household
multi purpose
bathtub & toilet
laundry

Improvement of detergency

Test 1

Detergency of a stain with four different detergent formulations was checked.

→ MMB formulation shows the best cleaning performance with lowest quantity

Test method

Four detergent formulations were prepared with different solvents.
The difference between them was just solvents and the other ingredients were fixed.
Black stain was applied on white plate.
Cleaning performance was checked with Multi-track scrub tester.

Test 2

Detergency of marker line on glass with solvents was checked.

→ MMB has synergy in detergency with hydrocarbons such as d-Limonene.

Test method

Glass plates drawn lines by permanent marker (black and red) were soaked in beakers filled with MMB, d-Limonene and Mixture of MMB and d-Limonene individually. After 10 minutes agitation at room temperature, detergency was checked.

Effect on plastics

Test 1

Damage to plastics by solvents were checked.

→ MMB has milder effect on resins than glycol ethers.

Test method

Plastics were soaked in each solvent for 7 days at 50℃(122℉) and degree of swelling were measured.

Degree of swelling

 
Polycarbonate
Polystyrene
PMMA
MMB BDG BEG PM DPM
19 dissolved partially dissolved partially dissolved dissolved
0 whitening whitening whitening whitening
76 partially dissolved partially dissolved partially dissolved partially dissolved
[volume % vs initial]

Test 2

Damage to PMMA resin by mixture of MMB and water were checked.

→ Damage to PMMA resin can be controlled by water.

Test method

Mixtures of MMB and water of different ratio were prepared.
PMMA test pieces were soaked in the mixtures for 7 days at room temperature and appearance was checked.

Improvement of stability

Viscosity and appearance of concentrated detergent formulations were checked.

MMB based formulation is low in viscosity and high in stability at low temperature.

Test method

Four detergent formulations were prepared with different solvents.
The difference between them was just solvents and the other ingredients were fixed.
Viscosity of them at room temperature and appearance of them at 2℃ were checked.

Viscosity of concentrated detergent formulations
(room temperature)

Solvents
Viscosity
(mPa・s)
MMB EtOH BEG PG
52 52 123 127
BEG
Ethylene glycol mono-butyl ether
PG
Propylene Glycol
EtOH
Ethanol

Appearance of concentrated detergent formulations
( 2℃)

Stability under alkaline and acidic conditions

Stability of solvents at pH 10 and 4 were checked.

→ MMB is stable at high and low pH.

Test method

Solvents and Buffer solutions were mixed.
The mixture were stored in an oven at 50℃ for 4 weeks.
Appearance and purity were checked.

pH=10 (50℃, 4weeks)
pH=4 (50℃, 4weeks)
BEG
Ethylene glycol mono-butyl ether
BDG
Diethylene glycol mono-butyl ether
PM
Propylene glycol mono-methyl ether
DPM
Dipropylene glycol mono-methyl ether

Evaporate profile

Evaporation profiles of solvents were checked.

→ Evaporation speed can be controlled by adding MMB to water and other solvents.

Test method
Solvent (5.0g) was charged to a petri dish (9cm in diameter). Weight of each solvent was checked at 22-23℃ and 30 RH%.

All experiments in this page were performed at Kuraray except for the test of detergency.