Summary of the invention
For the defect existing in prior art, the object of this invention is to provide a kind of coating for wall surface and preparation method.
Described a kind of coating for wall surface, is characterized in that this coating is made up of the component of following weight part: water 200-400 part, pulp mixture 10-40 part, defoamer 2-4 part, titanium dioxide 50-150 part, synthetic resin emulsion 100-350 part, soda acid modulator 2-5, vegetable jelly composition 20-50 part, plant milk extract 3-5 part.
Described a kind of coating for wall surface, is characterized in that described coating is made up of the component of following weight part: 250 parts, water, 20 parts of pulp mixtures, 100 parts of titanium dioxides, 170 parts of synthetic resin emulsions, 3 parts of soda acid modulators, 35 parts of vegetable jelly compositions, 4 parts of plant milk extracts.
Pulp mixture bamboo pulp, straw pulp, rag stock that the present invention adopts, each component proportions is: bamboo pulp: straw pulp: rag stock=1:2:1, this pulp mixture tool can improve the cured article content of coating, the effectively viscosity of adjusting coating; Defoamer adopts mineral oil antifoam agent, and froth breaking ability is strong, is easy to other batchings and mixes, and can not cause side reaction in film process; Titanium dioxide adopts nano grade titanium white powder, and covering effect is good, easily disperses, and in order to reduce production costs, titanium dioxide also can replace with GR composite titanium dioxide pigment.
Synthetic resin emulsion is selected pure acrylic latex according to coating class top grade, low grade can be selected polyvinyl acetate liquid, also can the two be mixed in proportion, this synthetic resin emulsion is with water-based system, there is no organic solvent, zero or the water-borne coatings of low VOC volatilization, there is fine environmental-protecting performance, this kind of performance is that other compositions are as vegetable jelly composition, under plant milk extract cooperation is collaborative, can further give play to superior performance, under the state of subatmospheric high humidity, metope absorbs airborne portion of water, in the situation that room air is dried, the body of wall originally moisture of storage will be discharged in air, thereby form aquatic respiration function.Meanwhile, also can effectively suppress the generation of inner wall surface mould, play the antibacterial effect of insect protected, provide useful environment to people.
Described a kind of coating for wall surface, is characterized in that described soda acid modulator.Adopt the compound alkali of high alkalinity, can regulate pH value, also have the effect of breakdown of emulsion and raising coagulation, and can form precipitation of hydroxide with heavy metal, removal heavy metal, makes coating health environment-friendly.
Described a kind of coating for wall surface, is characterized in that described vegetable jelly composition is the mixture of fenugreek gum and agar-agar, and both are than classifying fenugreek gum as: agar-agar=1:1.Vegetable jelly composition selects the fenugreek gum of extracted form natural plant and agar-agar to mix, and under resin emulsion synergy, does not need to add film coalescence aid and gets final product film forming.
Described a kind of coating for wall surface, it is characterized in that described plant milk extract is the alcohol extract of following composition, the banksia rose, Chinese yam, gynostemma pentaphylla, bamboo, valerian, ramulus mori, each component proportions is: the banksia rose: Chinese yam: gynostemma pentaphylla: bamboo: valerian: ramulus mori=1:1:1:2:2:1.
The preparation method of described a kind of coating for wall surface, is characterized in that adopting following steps:
1) measure the banksia rose, Chinese yam, gynostemma pentaphylla, bamboo, valerian, ramulus mori by formula, after pulverizing, mix, with soaking under 65% alcohol at normal temperature one week, the plant milk extract of pulverizing to obtain after leach liquor is concentrated, dry, for subsequent use;
2) by pulp mixture bamboo pulp, straw pulp, rag stock, each component proportions is pressed 1:2:1 mixing, smashes rear thin up put into reaction unit with hollander, adds defoamer to stir and carries out froth breaking;
3) in reaction unit, continue to add titanium dioxide, synthetic resin emulsion, stir, and be milled to fineness of materials below 50um;
4) to continuing in reaction unit to add the defoamer of Activities of Some Plants glue composition, surplus and plant milk extract to reaction unit, stir;
5) finally add soda acid modulator and water to regulate acid base equilibrium, cross 200 mesh sieves.
The preparation method of described a kind of coating for wall surface, the ratio that it is characterized in that each component in step 1) is the banksia rose: Chinese yam: gynostemma pentaphylla: bamboo: valerian: ramulus mori=1:1:1:2:2:1; Step 2) in the mass parts consumption of each component be: water 200-400 part, defoamer 2-4 part; In step 3), the mass parts consumption of each component is: titanium dioxide 50-150 part, synthetic resin emulsion 100-350 part; In step 4), the mass parts consumption of each component is: vegetable jelly composition 20-50 part, plant milk extract 3-5 part, defoamer 2-4 part; In step 5), the mass parts consumption of each component is: soda acid modulator 2-5 part, water 200-400 part.
The preparation method of described a kind of coating for wall surface, is characterized in that described vegetable jelly composition is the mixture of fenugreek gum and agar-agar, and both are than classifying fenugreek gum as: agar-agar=1:1.
The preparation method of a kind of coating for wall surface described in 6, is characterized in that step 2) in mixing speed be 700-900 rev/min, stir 10-30 minute; In step 3), mixing speed is 500-1200 rev/min, and churning time is 20-30 minute; Step 4) is to stir 15-30 minute under the condition of 400-800 rev/min at rotating speed; In step 5), pH value is adjusted to 6-7.
In the present invention, ethanol working concentration is 65%; the coating that adopts the inventive method and formula to make; construction proportioning is coating: water=100:(80-20); the coating gas mould making is plentiful; possess good decoration functions and protection of environment function, all have good effect at smell, environmental protection, aspect of performance, smell is pure and fresh; can not distribute the obnoxious flavoures such as formaldehyde, benzene, ammonia, TVOC, heavy metal free material.
A kind of coating for wall surface of the present invention and preparation method thereof, employing pulp mixture cost is lower, preparation technology is simple, and paper synthetic resin emulsion, plant milk extract and vegetable jelly are used in conjunction with, and play good mildew-resistant, expelling parasite, sterilization efficacy, and smell is pure and fresh simultaneously; Adopt the compound alkali of high alkalinity as soda acid modulator, can regulate pH value, also there is the effect of breakdown of emulsion and raising coagulation, and can form precipitation of hydroxide with heavy metal, removal heavy metal, make coating health environment-friendly, product of the present invention is not containing toxic substances such as formaldehyde, benzene, ammonia, and volatile toxic substance reaches zero release; Production cost is low, nontoxic, environmental protection there is fungistatic effect to the human health environmentally friendly interior wall coating that do not have a negative impact.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1
It is characterized in that this coating is made up of the component of following weight part:
Take bamboo pulp 15kg, straw pulp 30kg, rag stock 15kg mixes, the 300kg that adds water after smashing with hollander, dilution is put in reactor, adds defoamer 1.5kg, is to stir 15 minutes under the condition of 700-900 rev/min at rotating speed; Add again 100kg titanium dioxide, 230kg pure acrylic latex,, be churning time 20-30 minute under the condition of 500-1200 rev/min at rotating speed, cross sand milling to fineness of materials below 50um; 35kg vegetable jelly composition, 1.5kg defoamer, 4kg plant milk extract, to reactor, are to stir 15-30 minute under the condition of 400-800 rev/min at rotating speed; Finally the compound alkali of high alkalinity of use 1.5kg regulates pH value to 6-7, excessively after 200 mesh sieves, is qualified product, encapsulates preservation.
The preparation of vegetable jelly composition: take fenugreek gum 35kg, agar-agar 35kg, both mixing are obtained to vegetable jelly composition.Wherein fenugreek gum and agar-agar are market and buy.
The preparation of plant milk extract: take banksia rose 2kg, Chinese yam 2 kg, gynostemma pentaphylla 2 kg, bamboo 4kg, valerian 4kg, ramulus mori 2 kg, after pulverizing, mix, with soaking under 65% alcohol at normal temperature one week, the plant milk extract of pulverizing to obtain after leach liquor is concentrated, dry.
Embodiment 2
Take bamboo pulp 15kg, straw pulp 30kg, rag stock 15kg mixes, the 300kg that adds water after smashing with hollander, dilution is put in reactor, adds defoamer 1.5kg, is to stir 15 minutes under the condition of 700-900 rev/min at rotating speed; Adding titanium dioxide, the 230kg polyvinyl acetate liquid of 100kg, is churning time 20-30 minute under the condition of 500-1200 rev/min at rotating speed again, cross sand milling to fineness of materials below 50um; 35kg vegetable jelly composition, 1.5kg defoamer, 4kg plant milk extract, to reactor, are to stir 15-30 minute under the condition of 400-800 rev/min at rotating speed; Finally the compound alkali of high alkalinity of use 1.5kg regulates pH value to 6-7, excessively after 200 mesh sieves, is qualified product, encapsulates preservation.
The preparation of vegetable jelly composition: take fenugreek gum 35kg, agar-agar 35kg, both mixing are obtained to vegetable jelly composition.Wherein fenugreek gum and agar-agar are market and buy.
The preparation of plant milk extract: take banksia rose 2kg, Chinese yam 2 kg, gynostemma pentaphylla 2 kg, bamboo 4kg, valerian 4kg, ramulus mori 2 kg, after pulverizing, mix, with soaking under 65% alcohol at normal temperature one week, the plant milk extract of pulverizing to obtain after leach liquor is concentrated, dry.
Embodiment 3
Take bamboo pulp 10kg, straw pulp 20kg, rag stock 10kg mixes, the 200kg that adds water after smashing with hollander dilution is put in reactor, adds defoamer 1kg, is to stir 15 minutes under the condition of 700-900 rev/min at rotating speed; Add again 70kg titanium dioxide, 180kg pure acrylic latex,, be churning time 20-30 minute under the condition of 500-1200 rev/min at rotating speed, cross sand milling to fineness of materials below 50um; 30kg vegetable jelly composition, 1kg defoamer, 2kg plant milk extract, to reactor, are to stir 15-30 minute under the condition of 400-800 rev/min at rotating speed; Finally the compound alkali of high alkalinity of use 1kg regulates pH value to 6-7, excessively after 200 mesh sieves, is qualified product, encapsulates preservation.
The preparation of vegetable jelly composition: take fenugreek gum 30kg, agar-agar 30kg, both mixing are obtained to vegetable jelly composition.Wherein fenugreek gum and agar-agar are market and buy.
The preparation of plant milk extract: take banksia rose 1kg, Chinese yam 1 kg, gynostemma pentaphylla 1kg, bamboo 2kg, valerian 2kg, ramulus mori 1 kg, after pulverizing, mix, with soaking under 65% alcohol at normal temperature one week, the plant milk extract of pulverizing to obtain after leach liquor is concentrated, dry.
experimental example:the each embodiment coating that adopts formula of the present invention and method to prepare, carries out each side index and performance test with traditional coating, the results are shown in Table 1.
Table 1
Test item |
Embodiment 1-3 |
Traditional Architecture Decoration coating |
Smell |
Smell is pure and fresh, nature |
Smell is pungent |
Paint film appearance |
White, soft not dazzling, paint film is water-fast, acidproof, alkaline-resisting, anti-yellowing change, go mouldy, there is texture and fullness ratio |
Micro-yellow, paint film easily turn to be yellow, mildew |
Paint film property |
Plant milk extract and combinations of plant glue are used in conjunction with, and can decompose airborne formaldehyde, and Vermins-proof mildew-proof becomes, and keep indoor temperature and humidity balance |
Do not possess any function |
Duration of service after brushing |
With brushing with use |
Brushing rear venting two weeks left and right is used |
Water tolerance |
108h is without extremely |
48h is without extremely |
Alkali resistance |
96h is without extremely |
36h is without extremely |
Existing coating products is the limits of harmful substances standard that is no more than national regulation mostly, but in coating products, more or less all contain certain objectionable impurities, and the coating products that formula of the present invention and preparation method produce, the content of objectionable impurities is all examined and is not measured, and detected result is in table 2.
Table 2
The coating that embodiment of the present invention 1-3 provides send national building materials test center, and detected result is in table 3.
Table 3