A kind of Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle
Technical field
The present invention relates to antibiotic paint technical field, disclose a kind of Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle.
Background technology
New demand of antibacterial epoch: in recent years, emerge in an endless stream because of the generation of bacterium transmission of infection hazardous events, the mankind are for the more deep understanding of antibacterial importance, therefore for 3C electronic product, people's livelihood articles for use, underskirt trousers for example, socks, infant's adult diaper, women sanitary articles, as sanitary cotton pad, articles for use between sanitation of bath-room, as sanitising agent, clean hand breast, hand lotion, disinfecting liquid, house protective articles, as mouth mask, air air-conditioning system cleans filter screen, medical treatment product, as bandage, wound patch, synthetic leather, antibiotic and sterilizing salt solution etc., the health requirements of house building materials etc., from raw-material environmental protection, safety, avoid the contact of traditional preservatives to use, further rise to antibacterial requirement.Add that people's life quality promotes and requirement, the product with antibacterial has formed an important link.
At present, traditional emulsion paint is not killed and restraining effect common microorganism, streptococcus aureus (MRSA), streptococcus pneumoniae, Candida albicans, Pseudomonas aeruginosa, black aspergillus etc., use that can not be relieved safely in the time of people's use, and select general antibiotic emulsion paint effectively not better people's living environment.
While utilizing positively charged zine ion to contact with bacterium, because cytolemma/wall of bacterium is pulled open, produce broken hole, make bacterium cannot carry out cytolemma/wall and pulled open and produce broken hole, make bacterium carry out the generation of cytolemma/wall and affect breeding.When zine ion is entered in bacterial body by negative charge sound-absorbing, be combined with the functional group such as inner thiol group (SH), hydroxy, make bacterium because of protein denaturization, cannot normally carry out other reaction of catalysis and affect metabolic function, until bacterium is dead and completely dissolve only.There is the interpolation of high activity, approximately 0.05% Nano-Zinc particle, can cause five kinds of common pathogenic bacterias of human infection, as multiple drug resistance streptococcus aureus (MRSA), streptococcus pneumoniae, Candida albicans, Pseudomonas aeruginosa, black aspergillus etc. produce 99.99% sterilization effect, superbacteria, H1N1, veteran bacterium etc. are also had to manifest function.
Summary of the invention
The invention provides a kind of Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle, safe and reliable, sterilization effect is strong, and the antibiotic effect hold-time is long.
In order to reach above technique effect, technical scheme of the present invention is as follows:
An Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle, its moiety comprises following component with weight percent:
Nano zinc powder liquid 0.3-2%;
Suspended dispersed liquid 1-2%;
Resin 40-70%;
Pigment 0-20%;
Thinner 30-50%;
Adhesive agent 0-1.5%;
Film coalescence aid 2-4%;
Freeze preventing agent 0-1.5%;
Defoamer 0-1%.
Preferably, moiety comprises following component with weight percent:
Nano zinc powder liquid 0.5%;
Suspended dispersed liquid 1.5%;
Resin 50%;
Pigment 10%;
Thinner 32.5%;
Adhesive agent 1%;
Film coalescence aid 3%;
Freeze preventing agent 1%;
Defoamer 0.5%.
Preferably, described nano zinc powder liquid is that the nano zinc powder that 5~15nm, tap density are 7.1~7.2g/m3 is made by the dilution proportion of 1:10 by particle diameter.
Preferably, described suspended dispersed liquid is acrylic copolymer suspension dispersive agent.
Preferably, described resin is one or more the combination in epoxy resin, Synolac or acrylic resin.
Preferably, described thinner is water.
Preferably, described film coalescence aid be butyl glycol ether and Texanol ester alcohol in mass ratio 1:2 ratio mix.
Preferably, described in, freezing preventing agent is propylene glycol.
Apply a kind of Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle of the present invention; there is following technique effect: (1) environmental protection; to the nontoxic nonirritant of human body, acute oral toxicity test (LD50 > 2000mg/kg), irritation test (PII=0); (2) sterilization effect is by force by SGS JIS Z 2801 antibacterial test standards, and antibacterial effect surpasses 99.9%; (3) the antibiotic effect hold-time long, by SGS ASTM F1980, test, possess 5 years above antibiotic effects; (4) have the ability of high mildew-resistant, after tested, mildew-resistant grade reaches grade 0(without mould-growth).
The present invention also provides a kind of preparation method of the Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle, comprises the following steps:
(1) nano zinc powder liquid, suspended dispersed liquid, resin and thinner are proportionally mixed, obtain the first mixture;
(2) by pigment, film coalescence aid, freeze preventing agent and adhesive agent and slowly add in the first mixture and stir, obtain the second mixture;
(3) defoamer is added into the second mixture and stirs with vacuum defoamation stirrer, obtain the Antibacterial Waterborne Emulsion Paint product based on Nano-Zinc particle of the present invention;
In above three steps, temperature keeps 35 ℃~60 ℃.
Adopt preparation method of the present invention, technological process is simple, and the explained hereafter time is short.
Embodiment
Below in conjunction with specific embodiment, describe technical scheme of the present invention in detail, in this illustrative examples of the present invention and explanation, be used for explaining technical scheme of the present invention, but not as a limitation of the invention.
Embodiment 1:
An Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle, its moiety comprises following component with weight percent:
Nano zinc powder liquid 0.5%;
Suspended dispersed liquid 1.5%;
Resin 50%;
Pigment 10%;
Thinner 32.5%;
Adhesive agent 1%;
Film coalescence aid 3%;
Freeze preventing agent 1%;
Defoamer 0.5%.
Described nano zinc powder liquid is that the nano zinc powder that 5~15nm, tap density are 7.1~7.2g/m3 is made by the dilution proportion of 1:10 by particle diameter.
Described suspended dispersed liquid is acrylic copolymer suspension dispersive agent; Described resin is epoxy resin; Described thinner is water; Described film coalescence aid be butyl glycol ether and Texanol ester alcohol in mass ratio 1:2 ratio mix; The described preventing agent of freezing is propylene glycol.
The preparation method of a kind of Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle of the present invention is as follows:
Step 1, proportionally mixes nano zinc powder liquid, suspended dispersed liquid, resin and thinner, obtains the first mixture;
Step 2, by pigment, film coalescence aid, freeze preventing agent and adhesive agent and slowly add in the first mixture and stir, obtains the second mixture;
Step 3, is added into the second mixture by defoamer and stirs with vacuum defoamation stirrer, obtains the Antibacterial Waterborne Emulsion Paint product based on Nano-Zinc particle of the present invention;
In above three steps, temperature keeps 35 ℃~60 ℃.
Apply a kind of Antibacterial Waterborne Emulsion Paint based on Nano-Zinc particle of the present invention; there is following technique effect: (1) environmental protection; to the nontoxic nonirritant of human body, acute oral toxicity test (LD50 > 2000mg/kg), irritation test (PII=0); (2) sterilization effect is by force by SGS JIS Z 2801 antibacterial test standards, and antibacterial effect surpasses 99.9%; (3) the antibiotic effect hold-time long, by SGS ASTM F1980, test, possess 5 years above antibiotic effects; (4) have the ability of high mildew-resistant, after tested, mildew-resistant grade reaches grade 0(without mould-growth).
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.