Summary of the invention
The present invention aims to provide a kind of super scrubbable inner wall surface lacquer, and this wall paint also is based on the protection HUMAN HEALTH simultaneously, and the protection environment improves the performance of indoor decoration coating and develops.Product of the present invention also has the excellent properties that this area like product is possessed except having above-mentioned outstanding scrub resistance.For example, product of the present invention does not use heavy metal material and compound and additives such as formaldehyde, halogenide, solvent or aromatics, hydrocarbon polymer and lead, cadmium, chromium, mercury in formulating of recipe and production process, be the decorative material for internal wall of a kind of health and environment-friendly type.
The present invention also provides the preparation method of this super scrubbable inner wall surface lacquer.
The present invention is used for the water resistant type pure acrylic acid emulsion of high-weatherability, high gloss of paint for outer surface of wall as the filmogen of inner wall surface lacquer.Indexs such as the oil number by adjusting pigment and filler in the prescription, specific surface area, settling volume, the selection oil number is respectively 16~18 and 30~35 titanium dioxide and water-ground limestone, the pigment volume concentration (PVC) of prescription is controlled between 18~28, to reach best paint film compactness.
To achieve these goals, the present invention realizes according to following technical scheme:
A kind of raw material of super scrubbing-tolerant internal wall wall paint consists of: 240~300 parts of water, 2~5 parts of defoamers, 1~2 part of wetting agent, 1~1.5 portion of sanitas, 5~7 parts of dispersion agents, 1~2.5 part of pH adjusts agent, 200~300 parts of oil numbers are the titanium dioxide of 16-18,50~100 parts of oil numbers are the water-ground limestone of 30-35,8~12 parts of film coalescence aid, 20~30 parts of propylene glycol, 15~18 parts of diethylene glycol monobutyl ethers, 2.5~3.5 parts of Natvosols, 350~450 parts of pure acrylic acid emulsions, 40~50 parts of overcovers, 1~1.5 part of Sodium Benzoate, 2~4 parts of mould inhibitors, 2~4 parts of alkali swelling thickening materials and 0.2~0.5 part of essence, above consumption is all in weight part.
More than various raw materials can use conventional products well known by persons skilled in the art, wherein preferred described defoamer is defoamer CF-246; Preferred described wetting agent is wetting agent X-405; Preferred described sanitas is sanitas LXE; Preferred described dispersion agent is a dispersion agent 1124; Preferred described titanium dioxide is rutile titanium white powder R-595; The order number of preferred described water-ground limestone is between 1000~1500 orders; Preferred described mould inhibitor is mould inhibitor EPW; Preferred described pure acrylic acid emulsion is that solid content accounts for 48~51% AC-261; Preferred described alkali swelling thickening material is thickening material TT-935, and it is a kind of acrylic acid alkali swelling thickening material that is used for.
It is alkaline reagents that described pH adjusts agent, as ammoniacal liquor and AMP-95, preferably uses AMP-95, and the total addition level of AMP-95 is 1 ‰~2.5 ‰.
Described film coalescence aid is propylene glycol phenylate or alcohol ester-12, preferred propylene glycol phenylate, and the propylene glycol phenylate can be absorbed by emulsion particle, forms excellent filming continuously, gives product coalescent performance.
Described overcover is a kind of emulsion OP-62 of the hollow spheres polymkeric substance that is formed by styrene polymerization, and the solid content of emulsion is 30%, and viscosity is 65~70KU, and the particle diameter of sphere polymers is 0.3 μ m.
The preparation method of super scrubbing-tolerant internal wall wall paint of the present invention may further comprise the steps:
(1) joins lacquer
Amounts of components (weight part)
Water 200~250
Defoamer 1~2
Wetting agent 1~2
Sanitas 1~1.5
Dispersion agent 5~7
PH adjusts agent 0.5~1.5
Oil number is the rutile titanium white powder 200~300 of 16-18
Oil number is the water-ground limestone 50~100 of 30-35
Film coalescence aid 8~12
Propylene glycol 20~30
Diethylene glycol monobutyl ether 15~18
Defoamer 0.5~1.5
Above-mentioned raw materials is added in the stirring tank of high speed dispersor in order successively, start high speed dispersor, preferred 40~80 rev/mins of rotating speed, more preferably 60 rev/mins, preferred 5~20 minutes of jitter time more preferably 10 minutes, makes all auxiliary agents and pigment, filler fully wetting;
(2) thickening and high speed dispersion
2.5~3.5 parts of Natvosol thickening materials are added in the mixture that steps (1) obtain, improve gradually and disperse rotating speed to 1000~1500 rev/min, preferred 1320 rev/mins, high speed dispersion 25~35 minutes, hierarchy of control temperature is below 60 ℃;
(3) paint
Slurry scattered in the step (2) is moved in the paint cylinder of stirrer, stirs down the following raw material of adding successively:
Amounts of components (weight part)
Pure acrylic acid emulsion 350~450
Overcover 40~50
Defoamer 0.5~1.5
PH adjusts agent 0.5~1
Water 40~50
Sodium Benzoate 1~1.5
Mould inhibitor 2~4
Alkali swelling thickening material 2~4
Essence 0.2~0.5
Stirred 15~25 minutes, and detected viscosity, standard is 95~100KU, if the higher proper amount of clear water that just adds of viscosity is transferred rare; If viscosity is on the low side, just use the dilution in 1: 1 of alkali swelling thickening material and water slowly to add, till the viscosity of regulation, filter, preferably using the aperture is that 120 purpose filtering nets filter, and promptly obtains desired product.
The construction technology of product of the present invention is:
Putty must be solid, firm, and higher-strength is arranged, in order to avoid disadvantages such as shedding, cracking, poor adhesive force occur, is sure not the excessive water that adds during dilute with water, in order to avoid constructional deficiencies such as sagging, dry film shedding, opacifying power difference when construction occurring.
Owing to used the pure acrylic resin of water resistant type, and control suitable pigment volume concentration (PVC), after product of the present invention is applied to metope and drying, the membranaceous structure of matter that one deck has good water tolerance and compactness can be on metope, formed, up to ten thousand times scouring can be stood.Stable performance of the present invention is not with acid, alkaloid substance generation chemical reaction.In addition, the present invention is pollution-free to air, can not be detrimental to health, and is a kind of inner wall surface lacquer of environment-friendly type.
The performance of product of the present invention detects by national standard " synthetic resins interior wall coating) " GB/T9756-2001, and contrasts with national standard, the results are shown in Table 1:
Table 1
Project |
Index |
Premium grads |
Acceptable end product |
Salable product |
Product detected value of the present invention |
Condition in container application property low-temperature stability drying time (surface drying)/h≤appearance of film contrast ratio (white and light color) 〉=alkali resistance scrub resistance/time 〉= |
No lump is uniform state and brushes accessible 2 normal 0.95 0.93 0.90 24h that never degenerate in two roads and do not have unusual 1,000 500 200 after the stirring |
The ≈ 1 normal ≈ 0.95 that meets the requirements meets the requirements 〉=and 10000 |
As seen from Table 1, product of the present invention has surpassed the technical indicator, particularly scrubbing resistance number of times of the premium grads that national standard requires considerably beyond national standard, and has substantially exceeded the scrubbing resistance number of times of commercially available like product.
Product of the present invention contain hazardous substance is as shown in table 2 by the result that national standard " limits of harmful substances in the indoor decorating material interior wall coating " GB/18582 detects, and contrasts with national standard:
Table 2
Project |
The value of limiting the quantity of |
Product detected value of the present invention |
Volatile organic compounds (VOC)/(g/L) |
200 |
≈58 |
Free formaldehyde/(g/Kg) |
0.1 |
≈0.02 |
Heavy metal/(mg/Kg) |
Dissoluble lead Pb≤90 |
Do not detect |
Soluble cadmium Cd≤75 |
Do not detect |
Soluble chromium Co≤60 |
Do not detect |
Soluble mercury Hg≤60 |
Do not detect |
By the result in the table 2 as can be known, the index that the harmful substance contents of product of the present invention requires well below national standard, so product of the present invention is the decorative material for internal wall of a kind of health, safety and environment-friendly type.
Embodiment
Below in conjunction with specific embodiment content of the present invention is described in detail, but should be appreciated that content of the present invention is not subjected to the specifically described restriction of embodiment.
Purity grade and manufacturer raw materials used among the embodiment are as follows:
Defoamer CF-246: England Blackburn chemical company
Wetting agent X-405: Dow Chemical company limited
Sanitas LXE: U.S. Rhom and Hass
Dispersion agent 1124: U.S. Rhom and Hass
PH adjusts agent AMP-95: Dow Chemical company limited
Rutile titanium white powder R-595: U.S. Mei Lilian company
Water-ground limestone 1000 orders: the brilliant good fortune superfine powder in Jiangling factory
Propylene glycol phenylate: Shanghai Jinshan Chemical Co., Ltd.
Propylene glycol: Dow Chemical company limited
Diethylene glycol monobutyl ether: German BASF chemical company
Natvosol thickening material 250 HBR: Long company is striden the Asia by the U.S.
Pure acrylic acid latex A C-261: U.S. Rhom and Hass
Overcover OP-62: U.S. Rhom and Hass
Sodium Benzoate: Wuhan Youji Industrial Company Limited
Mould inhibitor EPW: Britain Sol company
Alkali swelling thickening material TT-935: U.S. Rhom and Hass
Essence: the glad sunshine essence in Shuande, Guangdong essence corporation
Above raw material is technical grade.
Embodiment 1
Amounts of components (weight part)
Water 210
Defoamer CF-246 1.5
Wetting agent X-405 1.5
Sanitas LXE 1
Dispersion agent 1,124 6
PH adjusts agent AMP-95 1
Rutile titanium white powder R-595 200
Water-ground limestone 1000 orders 65
Propylene glycol phenylate 10
Propylene glycol 25
Diethylene glycol monobutyl ether 15
Defoamer CF-246 0.5
Above various raw materials are added in order successively in the stirring tank of high speed dispersor (JFJ450, the mechanical company limited of the good letter of Yixing City), start high speed dispersor, rotating speed disperseed 10 minutes about 600 rev/mins, made all auxiliary agents and pigment, filler fully wetting.
Add simultaneously Natvosol thickening material 250 HBR (Long company is striden the Asia by the U.S.) of 2.5 weight parts lentamente at dispersive, improve gradually again and disperse rotating speed to 1320 rev/min, high speed dispersion 30 minutes, hierarchy of control temperature is below 60 ℃.
Scattered slurry is moved in the paint cylinder of high speed dispersor, rotating speed adds following material successively at 80 rev/mins:
Amounts of components (weight part)
Pure acrylic acid latex A C-261 380
Overcover OP-62 40
Defoamer CF-246 1
PH adjusts agent AMP-95 0.5
Water 33.8
Sodium Benzoate 1
Mould inhibitor EPW 3
Alkali swelling thickening material TT-935 4
Essence (flowers and fruits type) 0.2
Stirred 20 minutes, after testing, viscosity is 98KU.
Embodiment 2
Amounts of components (weight part)
Water 215
Defoamer CF-246 1
Wetting agent X-405 1
Sanitas LXE 1
Dispersion agent 1,124 6.5
PH adjusts agent AMP-95 1
Rutile titanium white powder R-595 240
Water-ground limestone 1000 orders 40
Propylene glycol phenylate 10
Propylene glycol 22
Diethylene glycol monobutyl ether 14
Defoamer CF-246 0.5
Above various raw materials are added in order successively in the stirring tank of high speed dispersor (JFJ450, the mechanical company limited of the good letter of Yixing City), start high speed dispersor, rotating speed disperseed 10 minutes about 600 rev/mins, made all auxiliary agents and pigment, filler fully wetting.Scattered slurry is moved in the paint cylinder of high speed dispersor, rotating speed adds following material successively at 100 rev/mins:
Amounts of components (weight part)
Pure acrylic acid latex A C-261 360
Overcover OP-62 50
Defoamer CF-246 1
PH adjusts agent AMP-95 0.5
Water 29.1
Sodium Benzoate 1
Mould inhibitor EPW 3
Alkali swelling thickening material TT-935 3
Essence (odor type yesterday) 0.2
Stirred 20 minutes, after testing, viscosity is 100KU.
Embodiment 1 gathers with the performance of embodiment 2 products