CN106390533A - Organosilicon defoamer with bactericidal action - Google Patents

Abstract

The invention discloses an organosilicon defoamer with a bactericidal action. The organosilicon defoamer is prepared from the following raw materials in parts by weight: 40-60 parts of simethicone, 20-30 parts of silicon dioxide, 0.3-0.5 part of stearamide, 0.3-0.5 part of potassium iodide, 0.3-0.5 part of sodium carbonate, 0.4-0.6 part of tributyl phosphate, 4-6 parts of clinoptilolite powder, 0.3-0.4 part of sodium tripolyphosphate, 0.3-0.5 part of mannitol, 2-3 parts of common salt, 0.3-0.6 part of barium stearate, 1-3 parts of glycerine, 0.4-0.6 part of copper sulfate, 0.5-0.7 part of activated carbon and 10-20 parts of water.

Description

A kind of organic silicon defoamer with bactericidal action

Technical field

The present invention relates to technical field of chemical synthesis, more particularly, to a kind of organic silicon defoamer with bactericidal action.

Background technology

During commercial production, if with the presence of substantial amounts of foam, many troubles can be brought, such as in production process Production capacity can greatly be restricted；Cause the waste of raw material and product；Impact product quality；Pollution environment etc., therefore, How to efficiently control foam in production process, become researcher emphasis of interest.Typically now eliminated with defoamer The foam producing in commercial production.

Industrial conventional defoamer generally can be divided into organic defoamer, organic silicon defoamer and polyether-type defoamer etc. three Class.Organic silicon defoamer is composited by a certain percentage by dimethicone and SiO2.The defoamer so made has insoluble Yu Shui, quite difficult emulsifying, surface viscosity is low, surface tension surface bullet that is lower than some surfactants and can disturbing foam film The characteristics such as property, especially preferable to the defoaming effect of oil-soluble solution；The diffusibility of modified composite organic defoaming emulsion, froth breaking energy Power and effect propety are more preferable.Belonging to such a large amount of defoamer using at present both at home and abroad more.

In current organic silicon defoamer, such as Chinese patent database, CN103830938B discloses. a kind of organic silicon defoamer Preparation method, more complicated etc., its technological process, can not froth breaking, suds simultaneously, be unfavorable for being promoted the use of.And study Show that the froth breaking of organic silicon defoamer and suds suppressing properties depend not only on the viscosity of used silicone oil, also disperseed by the middle of silicone oil Granule hydrophobicity determine..

Content of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of organosilicon froth breaking with bactericidal action Agent.

The present invention is achieved by the following technical solutions：

A kind of organic silicon defoamer with bactericidal action, it is to be obtained by the raw material of following weight parts：Dimethicone 40- 60, silicon dioxide 20-30, stearmide 0.3-0.5, potassium iodide 0.3-0.5, sodium carbonate 0.3-0.5, tributyl phosphate 0.4- 0.6th, clinoptilolite powder 4-6, sodium tripolyphosphate 0.3-0.4, Mannitol 0.3-0.5, Sal 2-3, barium stearate 0.3-0.6, sweet Oily 1-3, copper sulfate 0.4-0.6, activated carbon 0.5-0.7, water 10-20.

A kind of described organic silicon defoamer with bactericidal action, preparation method comprises the following steps：

（1）In concentration, the hydrochloric acid solution for 3-5% soaks 4-6 hour to clinoptilolite powder, drains extruding in flakes, then uses rotary drying Device activates 20-30 minute at 230-250 DEG C, obtains activated powder standby after being ground into 150-250 mesh；

（2）After activated powder is mixed with silicon dioxide, stearmide, add suitable quantity of water, be uniformly dispersed under 300-500rpm, Again slurry is dried, ball milling 1.5-2h under the rotating speed under 200-400rpm, cross 100-200 mesh sieve, the powder of gained and phosphoric acid Tributyl and copper sulfate, barium stearate mix, and ball milling 0.5-2h under the rotating speed of 200-400rpm obtains hydrophobic material standby；

（3）Dimethicone is placed in reactor, dimethicone in reactor is warmed up to 120-140 DEG C, keep reaction 80-90 rev/min of kettle rotating speed, adds Mannitol, Sal, stirs 4-6 minute, adds hydrophobic material, be warming up to 150-160 DEG C, 50-60 rev/min of rotating speed, stirs 8-12 minute, adds remaining raw material and be cooled to 120-130 DEG C, 70-80 rev/min of rotating speed, stirring After 30-50 minute, obtain final product.

It is an advantage of the invention that：（1）The present invention with the addition of the materials such as copper sulfate so that the present invention has certain sterilization work With by adding the materials such as dispersant so that product of the present invention has the good compatibility in defoamer, antifoaming speed is fast, suds Ability is strong, stable performance, adaptability are good, consumption is few.

（2）The present invention carries out ball milling hydrophobically modified process after activating powder together with silicon dioxide, and the material obtaining is dredged The good filler of aqueouss, redispersion, in silicone oil, can preferably increase froth breaking, the foam-inhibiting effect of the present invention.

（3）The defoamer of the present invention, not only froth breaking is fast, rejection is good, fundamental property that is not affecting bubbling system, and Diffusibility, good penetrability, stable chemical nature, corrosion-free, nontoxic, no adverse side effect, safe.

Specific embodiment

A kind of organic silicon defoamer with bactericidal action, it is to be obtained by the raw material of following weight parts：Dimethicone 40, silicon dioxide 20, stearmide 0.3, potassium iodide 0.3, sodium carbonate 0.3, tributyl phosphate 0.4, clinoptilolite powder 4, trimerization Sodium phosphate 0.3, Mannitol 0.3, Sal 2, barium stearate 0.3, glycerol 1, copper sulfate 0.4, activated carbon 0.5, water 10.

A kind of described organic silicon defoamer with bactericidal action, preparation method comprises the following steps：

（1）Clinoptilolite powder soaks 4 hours in the hydrochloric acid solution that concentration is 3%, drains extruding in flakes, then is existed with revolving drier Activate 20 minutes at 230 DEG C, obtain activated powder after being ground into 150 mesh standby；

（2）After activated powder is mixed with silicon dioxide, stearmide, add suitable quantity of water, be uniformly dispersed at 300 rpm, then will Slurry is dried, ball milling 1.5h under rotating speed at 200 rpm, crosses 100 mesh sieves, the powder of gained and tributyl phosphate and copper sulfate, Barium stearate mixes, and ball milling 0.5h under the rotating speed of 200rpm obtains hydrophobic material standby；

（3）Dimethicone is placed in reactor, dimethicone in reactor is warmed up to 120 DEG C, keep reactor to turn 80 revs/min of speed, adds Mannitol, Sal, stirs 4 minutes, adds hydrophobic material, be warming up to 150 DEG C, and 50 revs/min of rotating speed stirs Mix 8 minutes, add remaining raw material and be cooled to 120 DEG C, 70 revs/min of rotating speed, after stirring 30 minutes, obtain final product.

The performance measurement of the present embodiment：Take expanding foam solution 100ml in the graduated cylinder marking graduated 250ml, in Vertical Vibrating Swing in device with the hunting of frequency 5min of 300 times/min, be subsequently added into 0.2ml the present embodiment organic

Silicon defoaming agent；Test takes conventional commercial organic silicon defoamer equally to be processed as a comparison；Record the wink of the present embodiment Between froth breaking speed be 24.32ml/s, foam time 65s, suds time 82s；Moment better than conventional commercial organic silicon defoamer Froth breaking speed is 29.42ml/s, foam time 70s, suds time 79s.

Claims (2)

1. a kind of organic silicon defoamer with bactericidal action it is characterised in that：It is to be obtained by the raw material of following weight parts：Two Methyl-silicone oil 40-60, silicon dioxide 20-30, stearmide 0.3-0.5, potassium iodide 0.3-0.5, sodium carbonate 0.3-0.5, phosphoric acid Tributyl 0.4-0.6, clinoptilolite powder 4-6, sodium tripolyphosphate 0.3-0.4, Mannitol 0.3-0.5, Sal 2-3, barium stearate 0.3-0.6, glycerol 1-3, copper sulfate 0.4-0.6, activated carbon 0.5-0.7, water 10-20.

2. a kind of organic silicon defoamer with bactericidal action according to claim 1 it is characterised in that：Preparation method bag Include following steps：

（1）In concentration, the hydrochloric acid solution for 3-5% soaks 4-6 hour to clinoptilolite powder, drains extruding in flakes, then uses rotary drying Device activates 20-30 minute at 230-250 DEG C, obtains activated powder standby after being ground into 150-250 mesh；

（2）After activated powder is mixed with silicon dioxide, stearmide, add suitable quantity of water, be uniformly dispersed under 300-500rpm, Again slurry is dried, ball milling 1.5-2h under the rotating speed under 200-400rpm, cross 100-200 mesh sieve, the powder of gained and phosphoric acid Tributyl and copper sulfate, barium stearate mix, and ball milling 0.5-2h under the rotating speed of 200-400rpm obtains hydrophobic material standby；

（3）Dimethicone is placed in reactor, dimethicone in reactor is warmed up to 120-140 DEG C, keep reaction 80-90 rev/min of kettle rotating speed, adds Mannitol, Sal, stirs 4-6 minute, adds hydrophobic material, be warming up to 150-160 DEG C, 50-60 rev/min of rotating speed, stirs 8-12 minute, adds remaining raw material and be cooled to 120-130 DEG C, 70-80 rev/min of rotating speed, stirring After 30-50 minute, obtain final product.