CN105000827A - Water-resistant putty powder and preparation method thereof - Google Patents

Abstract

The invention discloses water-resistant putty powder and a preparation method thereof and relates to the field of coatings. The water-resistant putty powder is prepared from modified epidesmine powder, kaolin powder, polished rice gel powder, silica dihydrate, cellulose, aluminum-magnesium silicate, crosslinked starch and a pigment. The preparation method comprises crushing natural zeolite, mixing the crushed zeolite and hydrochloric acid, carrying out immersion, washing the crushed zeolite by distilled water until pH is 7, carrying out drying, mixing the dried zeolite and AgNO3, carrying out immersion, carrying out high pressure steam treatment, preparing polished rice gel powder, orderly mixing the modified epidesmine powder, kaolin powder, polished rice gel powder, silica dihydrate and crosslinked starch to obtain a uniform mixture, adding cellulose, aluminum-magnesium silicate and pigment into the mixture and carrying out stirring to obtain a uniform mixture. Through use of epidesmine powder, polished rice gel powder and silica dihydrate powder, adhesion is strong, hollowing, peeling and fracturing after affection with damp are avoided, and indoor formaldehyde content is effectively reduced.

Description

Water-proof putty powder and preparation method thereof

Technical field

The present invention relates to technical field of coatings, especially a kind of water-proof putty powder and preparation method thereof.

Background technology

Putty is the one decoration gel material of smooth surface of wall, and being a kind of thick slurry coating material, is that coating whitewashes front requisite a kind of product; The object of brushing putty is fill the hole of construction surface and correct the curve deviation of construction surface; lay a solid foundation for obtaining level and smooth, uniform lacquer painting; so; putty should have good cementability and water tolerance; there will not be the phenomenons such as peeling, hollowing and cracking to occur under the long-term corrosion ensureing water vapour in atmosphere, play decoration and provide protection.

And existing putty powder, some cementabilities are lower, poor adhesive force; Some water resistances poor, easy peeling, hollowing and cracking; Some meetings discharge toxic and harmful in air; Along with the progress of society, the raising of people's consciousness, people focus on environmental protection day by day, and therefore environmental protection is the trend of the times of coating industry development, present human consumer is more and more higher for the requirement of environmental protection, so environment-friendly type and have the selection that functional putty material has become more and more human consumer concurrently.

Summary of the invention

Problem to be solved by this invention be to provide a kind of can effective water-proof putty powder reducing indoor formaldehyde content and preparation method thereof.

In order to solve the problems of the technologies described above, scheme of the present invention is:

It is made up of the raw material of following weight part:

Modified red stilbite powder 10-20 part, kaolin powder 30-45 part, polished rice gel powder 5-10 part, two hydrated SiO 2 5-10 parts, Mierocrystalline cellulose 1-2 part, neusilin 0-0.7 part, cross-linking starch 2-5 part, pigment 0.5-1 part.

In technique scheme, scheme can also be more specifically: the fineness particle diameter of described kaolin powder is 500-800 order; The fineness particle diameter of described polished rice gel powder is 500-800 order; Described Mierocrystalline cellulose is one in Vltra tears or Natvosol or mixture, and viscosity was not less than for 50,000 milli handkerchief seconds.

Further: described pigment is that phenol cyanines are blue, phenol cyanines are green, any one in chrome yellow, iron oxide red, chromoxide green or titanium dioxide.

In such scheme, its preparation process is:

Step 1, natural zeolite pre-treatment: eluriated in natural parastilbite ore deposit, be then crushed to 900-1200 order;

Step 2, hydrochloric Acid Modification process: under normal temperature, being that 1:10 mixing is soaked by the natural zeolite of step 1 gained and 1.5 mol/ L hydrochloric acid by solid-to-liquid ratio, when constantly stirring through the process of 12 hours, filtering, with distilled water, modified red stilbite is washed till neutrality again, dry for standby;

Step 3, silver-colored load and steam modification: by step 2 gained acid modified red stilbite and 0.05 mol/ L AgNO ₃solution soaks by solid-to-liquid ratio 1:5 mixing, through process in 2 hours under constantly stirring, filters, then with distilled water flushing to neutral, shifts as in autoclave, through 180-200 DEG C of steam treatment 2 hours, takes out, dried for standby;

The preparation of step 4, polished rice gel powder: warm water polished rice being put into 5-10 times amount soaks 12-24 hour, by rice and immersion water pulping, refilter, drainage is brewed into paste, cooling, crushed after being dried become powder, for subsequent use;

Prepared by step 5, putty powder: by weight, successively the polished rice gel powder of the modified red stilbite powder of step 3 gained and kaolin powder, step 4 gained, two hydrated SiO 2s and cross-linking starch five kinds of aniseed are added in stirrer, after being uniformly mixed, add Mierocrystalline cellulose, neusilin and pigment three kinds of small powders more successively in stirrer, continuing stirring makes it fully mix, qualified rear packing, to obtain final product after testing.

Further: in step 5, the time of carrying out stirring after adding aniseed is 20 minutes, after adding small powder, and the time of carrying out stirring is 10 minutes.

The said stellerite of the present invention (Stellerite) its structure is moisture rack-like aluminosilicate, its chemical composition (%): SiO ₂58.76, Al ₂o ₃14.13, CaO8.80, K ₂o 0.11, Na ₂o 0.18, Fe ₂o ₃0.44, H ₂o ⁺16.87, H ₂o ^-1.25, calculational chemistry formula is: (K _{0. 017}na _{0. 042}ca _{1. 13}) _{1. 189}[Al _{1. 997}si _{7. 05}o ₁₈] 6. 75H ₂o).Natural parastilbite is the aluminium silicate mineral of a kind of moisture basic metal or alkaline-earth metal, the tectosilicate be made up of silicon-oxy tetrahedron and aluminum-oxygen tetrahedron, there are cavity and the passage of many openings in mineral inside, there is very large specific surface area, hole and duct account for 45% of cumulative volume, it is made to have stronger ion-exchange capacity and adsorptive power, good sorbing material and fungistat, modified through peracid, effectively can remove the plug ion in passage, and improve zeolite specific surface area comprehensively, increase the ability of its adsorbed gas.Afterwards again by loaded Ag modification, promote the performance of its catalyzed degradation formaldehyde

Two hydrated SiO 2 powder used, be unformed powder, tasteless, water insoluble or sour, tool unreactiveness, has thickening power, can greatly strengthen the indexs such as putty powder filling power, splitting resistance in this product, improves brightness and the exquisiteness of metope.

Mierocrystalline cellulose used as thickening material, dispersion agent and stablizer, all has good intermiscibility in coatings industry in water or organic solvent.Its water retention property makes putty powder can not chap because doing too fast after smearing.

The present invention compared with prior art, has following beneficial effect:

1, this putty powder is owing to the addition of modified red stilbite powder, red can have continuous print cavity passage in the three dimensional skeletal structure of zeolite powder, there is more uniform aperture, there is great specific surface area, have larger loading capacity, and load there is catalyst A g, can objectionable impurities in absorbed air and moisture, there is the effect of the indoor air humidity that purifies air, regulates, effectively can reduce indoor formaldehyde content; Owing to the addition of polished rice gel powder and two hydrated SiO 2 powder, its cohesiveness is strong, without hollowing, peeling, crack performance after making moist by water.

2, the thermostability had, use safety, both the effect played and fill up and fill and lead up and be convenient to coating application can be used in finishing, can be reacted by the formaldehyde in absorbed air again and be removed, reduce the content of indoor formaldehyde greatly, reducing the harm to HUMAN HEALTH, is environment-friendly type aqueous coating.

3, cheap, open up the purposes of brand-new natural parastilbite ore.

Embodiment

Below in conjunction with specific examples, the invention will be further described:

Embodiment 1:

The raw material adopted is: 10 kilograms, modified red stilbite powder, kaolin powder 45 kilograms, polished rice gel powder 10 kilograms, two hydrated SiO 2s 10 kilograms, Mierocrystalline cellulose 2 kilograms, neusilin 0.7 kilogram, cross-linking starch 2 kilograms, pigment 1 kilogram,

Wherein, the fineness particle diameter of kaolin powder is 500 orders; Mierocrystalline cellulose is Vltra tears, and viscosity was 50,000 milli handkerchief seconds; Pigment is that phenol cyanines are blue;

Preparation process is:

Step 1, natural zeolite pre-treatment: eluriated in natural parastilbite ore deposit, be then crushed to 900 orders;

Step 2, hydrochloric Acid Modification process: under normal temperature, being that 1:10 mixing is soaked by the natural zeolite of step 1 gained and 1.5 mol/ L hydrochloric acid by solid-to-liquid ratio, when constantly stirring through the process of 12 hours, filtering, with distilled water, modified red stilbite is washed till neutrality again, dry for standby;

Step 3, silver-colored load and steam modification: by step 2 gained acid modified red stilbite and 0.05 mol/ L AgNO ₃solution soaks by solid-to-liquid ratio 1:5 mixing, through process in 2 hours under constantly stirring, filters, then with distilled water flushing to neutral, shifts as in autoclave, through 180-200 DEG C of steam treatment 2 hours, takes out, dried for standby;

The preparation of step 4, polished rice gel powder: warm water polished rice being put into 5 times amount soaks 12 hours, by rice and immersion water pulping, refilter, drainage is brewed into paste, cooling, crushed after being dried become 500 object fine powders, for subsequent use;

Prepared by step 5, putty powder: by weight, successively the polished rice gel powder of the modified red stilbite powder of step 3 gained and kaolin powder, step 4 gained, two hydrated SiO 2s and cross-linking starch five kinds of aniseed are added in stirrer, stir after within 20 minutes, mixing, add Mierocrystalline cellulose, neusilin and pigment three kinds of small powders more successively in stirrer, continuing stirring makes it fully mix in 10 minutes, qualified rear packing, to obtain final product after testing.

Embodiment 2:

The raw material adopted is:

20 kilograms, modified red stilbite powder, kaolin powder 30 kilograms, polished rice gel powder 5 kilograms, two hydrated SiO 2s 5 kilograms, Mierocrystalline cellulose 1 kilogram, neusilin 0.5 kilogram, cross-linking starch 5 kilograms, pigment 0.5 kilogram,

Wherein, the fineness particle diameter of kaolin powder is 800 orders; Mierocrystalline cellulose is Natvosol, and viscosity was 60,000 milli handkerchief seconds; Pigment is that phenol cyanines are green;

Preparation process is:

Step 1, natural zeolite pre-treatment: eluriated in natural parastilbite ore deposit, be then crushed to 900 orders;

Step 2, hydrochloric Acid Modification process: under normal temperature, being that 1:10 mixing is soaked by the natural zeolite of step 1 gained and 1.5 mol/ L hydrochloric acid by solid-to-liquid ratio, when constantly stirring through the process of 12 hours, filtering, with distilled water, modified red stilbite is washed till neutrality again, dry for standby;

Step 3, silver-colored load and steam modification: by step 2 gained acid modified red stilbite and 0.05 mol/ L AgNO ₃solution soaks by solid-to-liquid ratio 1:5 mixing, through process in 2 hours under constantly stirring, filters, then with distilled water flushing to neutral, shifts as in autoclave, through 180-200 DEG C of steam treatment 2 hours, takes out, dried for standby;

The preparation of step 4, polished rice gel powder: warm water polished rice being put into 10 times amount soaks 24 hours, by rice and immersion water pulping, refilter, drainage is brewed into paste, cooling, crushed after being dried become 800 object fine powders, for subsequent use;

Prepared by step 5, putty powder: by weight, successively the polished rice gel powder of the modified red stilbite powder of step 3 gained and kaolin powder, step 4 gained, two hydrated SiO 2s and cross-linking starch five kinds of aniseed are added in stirrer, stir after within 20 minutes, mixing, add Mierocrystalline cellulose, neusilin and pigment three kinds of small powders more successively in stirrer, continuing stirring makes it fully mix in 10 minutes, qualified rear packing, to obtain final product after testing.。

measure of merit:

one, to dispel formolite test:

At 1 1m ³in complete hermetic glass chest customized, but be reserved with and add sampling window.Putty powder this patent embodiment 1 produced is criticized respectively and is scraped on each of cabinet interior, putty thickness is about 2mm, after putty drying, close chest, spray into the formaldehyde solution that 5ml concentration is 36% simultaneously, when formaldehyde volatilizees completely in airtight chest, carry out the content of first time sampling and measuring formaldehyde.Then after 4 hours, 12 hours, 24 hours and 48 hours, get a sample respectively, measure the content of formaldehyde in air in casing.

Formaldehyde in air assay method: vapor-phase chromatography

Condition determination: stainless steel column, column length 2m, internal diameter 3mm, in-built 2%OV-17+1.5%QF-1 (0.246 ~ 0.175mm), column temperature 190 DEG C, temperature of vaporization chamber 200 DEG C, detector temperature 250 DEG C; Carrier gas (N ₂) flow velocity 50mlmin ^-1.

Measurement result is as follows:

Result shows, patent Example of the present invention can play the effect of formaldehyde of well dispelling.

Two, water tolerance test

Being criticized by putty powder obtained for embodiment 2 scrapes on interior wall, and putty thickness is about 2mm, and after putty drying, to metope trickle, keep metope moist in 96 hours, wall surface putty is without exception.

Claims (5)

1. a water-proof putty powder, is characterized in that being made up of the raw material of following weight part:

Modified red stilbite powder 10-20 part, kaolin powder 30-45 part, polished rice gel powder 5-10 part, two hydrated SiO 2 5-10 parts, Mierocrystalline cellulose 1-2 part, neusilin 0-0.7 part, cross-linking starch 2-5 part, pigment 0.5-1 part.

2. water-proof putty powder according to claim 1, is characterized in that: the fineness particle diameter of described kaolin powder is 500-800 order; The fineness particle diameter of described polished rice gel powder is 500-800 order; Described Mierocrystalline cellulose is one in Vltra tears or Natvosol or mixture, and viscosity was not less than for 50,000 milli handkerchief seconds.

3. water-proof putty powder according to claim 1 and 2, is characterized in that: described pigment is that phenol cyanines are blue, phenol cyanines are green, any one in chrome yellow, iron oxide red, chromoxide green or titanium dioxide.

4. a preparation method for water-proof putty powder, is characterized in that the raw material adopting following weight part:

Modified red stilbite powder 10-20 part, kaolin powder 30-45 part, polished rice gel powder 5-10 part, two hydrated SiO 2 5-10 parts, Mierocrystalline cellulose 1-2 part, neusilin 0-0.7 part, cross-linking starch 2-5 part, pigment 0.5-1 part;

Its preparation process is:

Step 1, natural zeolite pre-treatment: eluriated in natural parastilbite ore deposit, be then crushed to 900-1200 order;

Step 2, hydrochloric Acid Modification process: under normal temperature, being that 1:10 mixing is soaked by the natural zeolite of step 1 gained and 1.5 mol/ L hydrochloric acid by solid-to-liquid ratio, when constantly stirring through the process of 12 hours, filtering, with distilled water, modified red stilbite is washed till neutrality again, dry for standby;

Step 3, silver-colored load and steam modification: by step 2 gained acid modified red stilbite and 0.05 mol/ L AgNO ₃solution soaks by solid-to-liquid ratio 1:5 mixing, through process in 2 hours under constantly stirring, filters, then with distilled water flushing to neutral, shifts as in autoclave, through 180-200 DEG C of steam treatment 2 hours, takes out, dried for standby;

The preparation of step 4, polished rice gel powder: warm water polished rice being put into 5-10 times amount soaks 12-24 hour, by rice and immersion water pulping, refilter, drainage is brewed into paste, cooling, crushed after being dried become powder, for subsequent use;

Prepared by step 5, putty powder: by weight, successively the polished rice gel powder of the modified red stilbite powder of step 3 gained and kaolin powder, step 4 gained, two hydrated SiO 2s and cross-linking starch five kinds of aniseed are added in stirrer, after being uniformly mixed, add Mierocrystalline cellulose, neusilin and pigment three kinds of small powders more successively in stirrer, continuing stirring makes it fully mix, qualified rear packing, to obtain final product after testing.

5. the preparation method of water-proof putty powder according to claim 4, is characterized in that: in step 5, and the time of carrying out after adding aniseed stirring is 20 minutes, after adding small powder, and the time of carrying out stirring is 10 minutes.