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Jul 12, 2016
Any application amphoteric surfactants havea great relationship with the synergistic effect or complex effects. Anionconsidering almost all common detergents / nonionic complex systems (such asfabric detergent), anion / anion complex systems (such as dishwashingdetergent), in which the amphoteric surfactant was added to bring theAssociation or combined effects of compounding effect is obvious.
To date, the synergistic effect ofdecontamination amphoteric surfactant and anionic surfactants have been to beamong the more complete discussion. While synergism or compounding effectamphoteric surfactants and nonionic surfactants is between only recentlydiscovered.
All detergent formulations are between costrequirements of a surfactant and application object washed restrictions strikea balance results. When the pH value, stirring and washing temperature isrestricted, or when the object is vulnerable to wash, detergent cost is highand the production process will be more complicated; when the object to bewashed more resistant to harsh washing conditions.
In the former case requires a moreexpensive but highly functional surfactant, the latter case even completelywithout a surfactant. Skin pH and temperature tolerance is limited, butslightly greater shearing action to be tolerable. Hand wash dishwashingdetergent type of pH and temperature range is limited, but the huge shearingforce generated by a rag or brush will also reduce the effect of surface activeagents; washing machine dishwashing detergents due to jet Auxiliary, and the pHand temperature adjustment range is also great, even without a surfactant.
Therefore, it can be expected in both caseswould consider using an amphoteric surfactant: First, without considering thecost of the premise, the second is in situations such as extreme pH underspecial application conditions. So, making the surfactants and their complexsystem of choice become more complicated.
It is noted that, for amphotericsurfactants variety selection is essential. If an amphoteric surfactant at thecomplex shows only limited synergies or complex effect, then select theamphoteric surfactant compound is not economical.
Mankowich found that 3% of the availablecarboxy glycinate cocoyl gender (40% active) and 15% of non-ionic surfactant(100% active) of the complex system instead of the traditional 12% of activeanionic / nonionic surfactant complex system. Gender selection cocoylglycinate, then you need to 9% coco amphoteric glycine salt (40% active) toachieve the same effect as when 6% of non-ionic surfactant compound. Visible,single or double carboxylated carboxylated will have such a significantdifference in performance between the imidazoline derivatives, other amphotericsurfactants say the least.