A kind of environment-friendly waterproof outer wall building coating and preparation method thereof
Technical field
The invention belongs to building coating technical field, relate to a kind of environment-friendly waterproof outer wall building coating and preparation method thereof, be mainly used in building external paint field.
Background technology
Building external paint kind has styrene-acrylic coating, pure acrylate dope, acrylic coating, epoxy coating, fluorocarbon coating etc. at present; The main problem existing is easily to produce the defects such as crack, snappiness, poor flexibility.Most of building masonry walls are taking cement sand plaster as basic unit, and in the time that the factor such as temperature variation, freeze-thaw cycle that is subject to affects, body of wall can produce crack conventionally, along with crackle generation and the expansion of basic unit cause coating also to produce cracking; Along with gathering of time lengthening and above-mentioned destructive factor, crack can further be strengthened, be deepened, and not only affects attractive in appearancely, the more important thing is the buildings even harm that has a negative impact.The high-grade outer wall building coating of environment-friendly waterproof of applicant's development can overcome above-mentioned shortcoming.This coating environmental protection snappiness is good, there is water tolerance and scrub resistance and the artificial ageing resistance of high resistance to acids and bases, uniqueness, freedom from cracking water-impervious, the advantages such as dirt-resisting dustproof, volatile organic compounds, free formaldehyde, dissoluble lead, mercury, chromium etc. all meet every limit of harmful substance index of state compulsory standard GB18582-2001 regulation.There is certain economic benefit and using value, have good development prospect.
Summary of the invention
The object of the invention is the problem for above-mentioned existence, a kind of novel environment friendly water proof exterior wall building coating and preparation method thereof is provided.
For achieving the above object, the present invention realizes the technical scheme that object adopts and is:
A kind of environment-friendly waterproof outer wall building coating, content is 8~15% by component water by mass percentage, S-05 pure-acrylic emulsion is 20~25%, JN-30 silicon sol is 8~15%, SD-518 elastic cement modified emulsion is 7~11%, propylene glycol frostproofer is 3~7%, alcohol ester 12 film coalescence aid are 2~5%, Rutile type Titanium Dioxide is 12~17%, coarse whiting is 3~6%, silica powder is 2~5%, calcite in powder is 5~9%, talcum powder is 5~9%, multi-functional thickening material is 0.1~0.3%, wetting agent AD-405 is 0.1~0.3%, powerful dispersion agent is 0.1~0.3%, Cognis sanitas is 0.1~0.3%, defoamer S – 220 is 0.1~0.3% composition.
Wherein said Rutile type Titanium Dioxide, coarse whiting, silica powder, calcite in powder, talcous powder footpath are 1250 mesh sieves.
For achieving the above object, the present invention realizes another technical scheme that object adopts and is:
The preparation method of environment-friendly waterproof outer wall building coating of the present invention, comprises the following steps:
1. under the speed conditions with 800r/min, by formulating of recipe consumption, tap water is added in stirred pot, then respectively Rutile type Titanium Dioxide, coarse whiting, silica powder are added to stirring at low speed 20-25min;
2. add respectively S-05 pure-acrylic emulsion, talcum powder, calcite in powder by formulating of recipe consumption again, with the rotating speed high-speed stirring 20-30min of 2500r/min;
3. press formulating of recipe consumption, more respectively JN-30 silicon sol, SD-518 elastic cement modified emulsion, propylene glycol frostproofer, alcohol ester 12 film coalescence aid, powerful dispersion agent, wetting agent are added to continuation high-speed stirring 35-45min;
4. press formulating of recipe consumption, more respectively Cognis sanitas, multi-functional thickening material, defoamer are added to continuation high-speed stirring 45-50min, obtain the high-grade outer wall building coating of environment-friendly waterproof.
Embodiment
Further describe technical scheme of the present invention below by specific embodiment:
The source of the each component of embodiment: tap water (this locality), S-05 pure-acrylic emulsion (Nantong Shengda Chemical Co., Ltd.'s technical grade product), JN-30 silicon sol (Qingdao Yu Rui Chemical Co., Ltd. technical grade product), SD-518 elastic cement modified emulsion (Nantong Shengda Chemical Co., Ltd.'s technical grade product), propylene glycol frostproofer (Jinan Ju You Chemical Co., Ltd. technical grade product), alcohol ester 12 film coalescence aid (U.S. EASTMAN Yi Shiman technical grade product), Rutile type Titanium Dioxide (Langfang Landtek Chemical Co., Ltd. technical grade product) coarse whiting (city of south china Gui Bao powder limited liability company technical grade product), silica powder (Anda mine industrial capital investment company limited of Nanning section technical grade product) calcite in powder (Lian Xiang of autonomous county of Bama of Guangxi Yao nationality industry park technical grade product), talcum part (Changxing Qing Shenggai industry company limited technical grade product), wetting agent AD-405 (Guangzhou Ang Di Chemical Co., Ltd. technical grade product), multi-functional thickening material (Beijing Gongda Weiye Sci-Tech Research Center's technical grade product), powerful dispersion agent (powerful dispersion agent), Cognis sanitas (German Ke Ning chemical company technical grade product), defoamer S – 220 (source, Jinsui River chemical engineering industry level product).
One, content formula is as shown in the table by mass percentage for embodiment 1-5:
Each component concentration |
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Embodiment 4 |
Embodiment 5 |
Tap water |
10 |
11 |
8 |
10 |
15 |
S-05 pure-acrylic emulsion |
20 |
22 |
23 |
24 |
25 |
JN-30 silicon sol |
15 |
10 |
11 |
12 |
8 |
SD-518 elastic cement modified emulsion |
10 |
8 |
9 |
11 |
7 |
Propylene glycol frostproofer |
4 |
5 |
3 |
6 |
7 |
Alcohol ester 12 film coalescence aid |
3 |
4 |
5 |
2 |
3 |
Rutile type Titanium Dioxide (1250 order) |
15 |
16 |
17 |
12 |
14 |
Coarse whiting (1250 order) |
5 |
5 |
4 |
6 |
3 |
Silica powder (1250 order) |
4 |
5 |
3 |
2 |
3 |
Talcum powder (1250 order) |
8 |
7 |
9 |
6 |
5 |
Calcite in powder 1250 orders) |
5 |
6 |
7 |
8 |
9 |
Multi-functional thickening material |
0.2 |
0.1 |
0.3 |
0.2 |
0.3 |
Wetting agentAD-405
|
0.2 |
0.2 |
0.1 |
0.3 |
0.2 |
Powerful dispersion agent |
0.2 |
0.3 |
0.1 |
0.2 |
0.3 |
Defoamer S – 220 |
0.2 |
0.1 |
0.3 |
0.2 |
0.1 |
Cognis
Sanitas |
0.2 |
0.3 |
0.2 |
0.1 |
0.1 |
Two, the preparation method of embodiment 1-5
The preparation method of environment-friendly waterproof outer wall building coating of the present invention, comprises the following steps:
1. under the speed conditions with 800r/min, by formulating of recipe consumption, tap water is added in stirred pot, then respectively Rutile type Titanium Dioxide, coarse whiting, silica powder are added to stirring at low speed 20-25min;
2. add respectively S-05 pure-acrylic emulsion, talcum powder, calcite in powder by formulating of recipe consumption again, with the rotating speed high-speed stirring 20-30min of 2500r/min;
3. press formulating of recipe consumption, more respectively JN-30 silicon sol, SD-518 elastic cement modified emulsion, propylene glycol frostproofer, alcohol ester 12 film coalescence aid, powerful dispersion agent, wetting agent are added to continuation high-speed stirring 35-45min;
4. press formulating of recipe consumption, more respectively Cognis sanitas, multi-functional thickening material, defoamer are added to continuation high-speed stirring 45-50min, obtain the high-grade outer wall building coating of environment-friendly waterproof.
Three, environment-friendly waterproof outer wall building coating performance test results is as following table
Adopt above-mentioned preparation method, develop environment-friendly waterproof outer wall building coating, this coating environmental protection snappiness is good, there is high resistance to acids and bases, water tolerance, scrub resistance and artificial ageing resistance, freedom from cracking water-impervious, the advantages such as dirt-resisting dustproof, have certain economic benefit and using value, have good development prospect.