CN102382572A

CN102382572A - Preparation process of low-cost environment-friendly inner wall coating

Info

Publication number: CN102382572A
Application number: CN2011103072493A
Authority: CN
Inventors: 徐梅
Original assignee: Individual
Current assignee: 5Elem Hi Tech Corp Technology Co Ltd
Priority date: 2011-10-11
Filing date: 2011-10-11
Publication date: 2012-03-21
Anticipated expiration: 2031-10-11
Also published as: CN102382572B

Abstract

The invention discloses a preparation process of a low-cost environment-friendly inner wall coating, which comprises three steps: preparation of straw powder, preparation of mixtures and preparation of the coating. The preparation process is simple, the preparation condition scope is wider, and the operation is easy. As adopted raw material has a wide source, the cost is low, and particularly a large proportion of reproducible straw powder is used, the cost of the coating can be greatly reduced, and the coating is environment friendly.

Description

A kind of preparation technology of low-cost environmental-protecting interior wall coating

Technical field

The present invention relates to the architectural decorative and fitting materials field, particularly a kind of preparation technology of low-cost environmental-protecting interior wall coating.

Background technology

The trade sales coating that China produces at present mainly contains two big types: the one, and the synthetic resin emulsion class comprises vinyl acetate-acrylic latex paint, styrene-acrylic latex coating, vinylchlorid-vinylidene chloride rubber-emulsion paint, polyvinyl acetate lacquer, epoxy-acrylic latex coating etc.; The 2nd, the inorganic polymer class mainly comprises with silicate, silicon sol serving as the various inorganic architectural coatings of basis preparation.

Along with house decorative material is used more and more widely, it is the third generation pollution period of sign that the present mankind begin to get into the indoor pollution.Generally acknowledge that in the world indoor pollution is to the maximum place of public health harm.The characteristics of room air pollution are following: the obnoxious flavour that distributes in indoor building materials and the furniture, and amount of positive ions is many, and negative ion is few, and CO content is high, the refuse waste gas of people and animal etc.The harmful substances that mainly contains of indoor generation has the generations such as incomplete combustion by volatilization, household fuel and the tobacco leaf of material of construction, house decorative material and daily necessities of 1. formaldehyde-mainly.2. ammonia-by evaporating in finishing material, building structure such as the body of wall.3. VOC VOC-is less than or equal to any organic cpds of 250 ℃ from boiling point or fusing point, like sharp paint, coating, tackiness agent, and ground, decorative material for wall surface etc.4. ozone-because generations such as uviolizings, electrical equipment use.5. carbonic acid gas-human body is breathed out and the waste gas of fuel combustion.

At present, domestic, especially in the area that are fairly developed economically; Some can discharge the low-grade construction coating for internal wall of toxic gas; Superseded basically in market, generally use medium-to-high grade environmental-protection construction coating for internal wall such as aq. type, latex type, be added with various additives in some high-grade paint to eliminate various pollutions targetedly; Like anti-methanal paint, remove the coating of benzene etc.These coating have good film-forming property, film have excellent water tolerance, weathering resistance, anti-stain characteristic, environmental pollution be very little.But these coating remain in some shortcomings: the one, and raw materials cost is higher, has particularly added the coating of the additive with activeconstituents, often adds the Nano titanium dioxide powder in the methanal paint as removing, and causes price more expensive; The 2nd, production technique need heat, energy consumption is big; The 3rd, production technique is complicated; The 4th, some auxiliary agent that adds in producing still can discharge toxic gas, though environmental pollution is less, but still can produce certain negative impact.The high price of this type coating causes many Rural areass and economic backward area, still at a large amount of low-grade construction coating for internal wall that environment had pollution that use.

Summary of the invention

To the deficiency of prior art, one of the object of the invention is to provide the preparation technology of low-cost environmental-protecting interior wall coating, have coating problem with high costs now to solve, and this is simple for process, the prepared coating environmental protection.

To achieve these goals, the technical scheme that the present invention adopted is following:

A kind of preparation technology of low-cost environmental-protecting coating, this technology comprises the steps:

D. prepare straw powder material: straw is cleaned; Then with an amount of chlorinated lime bleaching; Clean with clear water again; Use 12-15% high-purity zinc oxide aqueous solution soaking 36-60 hour then,, will be soaked with zinc oxide and dried stalk at last and be ground into ultrafine powder through kibbler then at 120-150 ℃ of drying treatment 12-18 hour.

E. prepare compound: with the wilkinite of the magnesiumcarbonate of the lime carbonate of the straw powder material of a step of 30-40% preparation and 10-15%, 10-15%, 10-15% in ball mill ball mill mixing 8-12 hour; Be prepared into uniform compound; Wherein content is weight percentage, and its content is the ratio that accounts for last coating gross weight;

F. prepare coating: mix in having the container of whisking appliance with the said compound and the 2-3% Natvosol of b step preparation, 3-5% white glue with vinyl with in the water of per-cent surplus, and got final product in 60-90 minute with 500-800 rev/min stirring velocity stirring.

The concentration of the high-purity zinc oxide of preferred said a step is 12-14%, further preferred 13%; Preferred said soak time is 40-50 hour, further preferred 45 hours; Preferably at 130-140 ℃ of dry 14-16 hour, further preferably 135 ℃ of dryings 15 hours.

Preferred said b step said ball mill mixing 9-11 hour, further preferred 10 hours.

Preferred said c step stirred 70-80 minute with 600-700 rev/min stirring velocity, and further preferred stirring velocity with 650 rev/mins stirred 75 minutes.

Described lime carbonate, magnesiumcarbonate, wilkinite, Natvosol and white glue with vinyl are technical grade.

The beneficial effect of book preparation technology of institute of the present invention and prepared coating is:

1. preparation technology is simple, and preparation condition a wider range is easy to operate.

2. creationaryly in coating, add reproducible biomaterial: straw powder material, it soaks the back and sterilization and anticorrosion after the pyroprocessing through ZPO, can satisfy user demand, and nontoxic, but and moisture absorption protection against the tide after adding in the coating.

In the material therefor except that a small amount of Natvosol and white glue with vinyl as caking agent as thickening material; The zinc oxide of lime carbonate, magnesiumcarbonate and wilkinite and immersion usefulness is the inorganic materials of nontoxic pollution-free; And stalk powder belongs to biological recyclable materials, so the prepared coating environmental protection.

4. because the raw material sources that adopted are extensive; With low cost; Particularly wherein reproducible straw powder material occupies larger proportion; Therefore significantly reduce the cost of coating, its cost of tool measuring and calculating only is equivalent to the 1/3-1/5 of generic latex lacquer such as styrene-acrylic latex coating, has been equivalent to add the 1/8-1/10 of functional additive coating.Therefore, even also can bear and use this coating fully to Rural areas and economic backward area.

Embodiment

Embodiment one

A. prepare straw powder material: straw is cleaned; Then with an amount of chlorinated lime bleaching; Clean with clear water again; Use 12% high-purity zinc oxide aqueous solution soaking 36 hours then,, will be soaked with zinc oxide and dried stalk at last and be ground into ultrafine powder through kibbler then 120 ℃ of drying treatment 12 hours.

B. prepare compound: with the wilkinite of the magnesiumcarbonate of the lime carbonate of the straw powder material of a step of 30-40% preparation and 10-15%, 10-15%, 10-15% ball mill mixing 8 hours in ball mill; Be prepared into uniform compound; Wherein content is weight percentage, and its content is the ratio that accounts for last coating gross weight;

C. prepare coating: mix in having the container of whisking appliance with the said compound and the 2-3% Natvosol of b step preparation, 3-5% white glue with vinyl with in the water of per-cent surplus, and got final product in 60 minutes with 500 rev/mins stirring velocity stirring.

Embodiment two

A. prepare straw powder material: straw is cleaned; Then with an amount of chlorinated lime bleaching; Clean with clear water again; Use 15% high-purity zinc oxide aqueous solution soaking 60 hours then,, will be soaked with zinc oxide and dried stalk at last and be ground into ultrafine powder through kibbler then 120-150 ℃ of drying treatment 18 hours.

B. prepare compound: with the wilkinite of the magnesiumcarbonate of the lime carbonate of the straw powder material of a step of 30-40% preparation and 10-15%, 10-15%, 10-15% ball mill mixing 12 hours in ball mill; Be prepared into uniform compound; Wherein content is weight percentage, and its content is the ratio that accounts for last coating gross weight;

C. prepare coating: mix in having the container of whisking appliance with the said compound and the 2-3% Natvosol of b step preparation, 3-5% white glue with vinyl with in the water of per-cent surplus, and got final product in 90 minutes with 800 rev/mins stirring velocity stirring.

Embodiment three

A. prepare straw powder material: straw is cleaned; Then with an amount of chlorinated lime bleaching; Clean with clear water again; Use 13% high-purity zinc oxide aqueous solution soaking 45 hours then,, will be soaked with zinc oxide and dried stalk at last and be ground into ultrafine powder through kibbler then 135 ℃ of drying treatment 15 hours.

B. prepare compound: with the wilkinite of the magnesiumcarbonate of the lime carbonate of the straw powder material of a step of 30-40% preparation and 10-15%, 10-15%, 10-15% ball mill mixing 10 hours in ball mill; Be prepared into uniform compound; Wherein content is weight percentage, and its content is the ratio that accounts for last coating gross weight;

C. prepare coating: mix in having the container of whisking appliance with the said compound and the 2-3% Natvosol of b step preparation, 3-5% white glue with vinyl with in the water of per-cent surplus, and got final product in 75 minutes with 650 rev/mins stirring velocity stirring.

Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.

Claims

1. the preparation technology of a low-cost environmental-protecting coating is characterized in that, this technology comprises the steps:

A. prepare straw powder material: straw is cleaned; Then with an amount of chlorinated lime bleaching; Clean with clear water again; Use 12-15% high-purity zinc oxide aqueous solution soaking 36-60 hour then,, will be soaked with zinc oxide and dried stalk at last and be ground into ultrafine powder through kibbler then at 120-150 ℃ of drying treatment 12-18 hour;

B. prepare compound: with the wilkinite of the magnesiumcarbonate of the lime carbonate of the straw powder material of a step of 30-40% preparation and 10-15%, 10-15%, 10-15% in ball mill ball mill mixing 8-12 hour; Be prepared into uniform compound; Wherein content is weight percentage, and its content is the ratio that accounts for last coating gross weight;

C. prepare coating: mix in having the container of whisking appliance with the said compound and the 2-3% Natvosol of b step preparation, 3-5% white glue with vinyl with in the water of per-cent surplus, and got final product in 60-90 minute with 500-800 rev/min stirring velocity stirring.

2. the preparation technology of a kind of low-cost environmental-protecting coating as claimed in claim 1, the concentration of the high-purity zinc oxide of wherein said a step are 12-14%; Said soak time is 40-50 hour; And at 130-140 ℃ of dry 14-16 hour; Said b step said ball mill mixing 9-11 hour; Said c step stirred 70-80 minute with 600-700 rev/min stirring velocity.

3. the preparation technology of a kind of low-cost environmental-protecting coating as claimed in claim 2, the concentration of the high-purity zinc oxide of wherein said a step are 13%; Said soak time is 45 hours; And 135 ℃ of dryings 15 hours; The said ball mill mixing of said b step 10 hours; Said c step stirred 75 minutes with 650 rev/mins stirring velocity.