CN104098997B - A kind of preparation method without benzene clean taste type scratch resistance PU gloss varnish - Google Patents
A kind of preparation method without benzene clean taste type scratch resistance PU gloss varnish Download PDFInfo
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- CN104098997B CN104098997B CN201310123855.9A CN201310123855A CN104098997B CN 104098997 B CN104098997 B CN 104098997B CN 201310123855 A CN201310123855 A CN 201310123855A CN 104098997 B CN104098997 B CN 104098997B
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- clean taste
- resin
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Abstract
The present invention relates to a kind of preparation method without benzene clean taste type scratch resistance PU gloss varnish, be made up of the first and second bi-components, the weight proportion of the first and second components is 1:0.5；Lacquer type organic coating first component is by forming without benzene clean taste alkyd resin, acrylic resin, aldehyde ketone resin, chelating levelling agent, defoamer and solvent without vegetable oil (aliphatic acid)；Second component is made up of curing agent and solvent.The present invention prepare without benzene clean taste type scratch resistance PU gloss varnish aromatic-free, without ketone, without heavy metal, coating film forming did not remain discomfort smell after 48 hours；Gloss of film is high simultaneously, perception as crystal jade, glittering and translucent, paint film is abundant texture, decorative effect as smooth, as bright as a sixpence, build pure and fresh, plain, succinct, a quiet space, bring unique enjoyment that you are relaxed and joyful, adapt to the Aesthetic View of modern, very by the favor in market and liking of client.It is widely used in the surface protection decoration of the goods such as woodenware, metal, plastics.
Description
Technical field
The present invention relates to the preparation method of a kind of scratch-resistant polyurethane gloss varnish, particularly relate to a kind of anti-without benzene clean taste type
Scratch PU gloss varnish.
Background technology
Along with the raising of people's material and cultural life, the painting effect of furniture is required more and more higher by consumer,
Thus driven the quick growth of domestic woodwork coating.Along with the tightest to the attention of environmental protection and various countries' environmental regulation of people
Lattice, after the manufacturer of coating and coating user environmental requirement, organic solvent and the application to coating, goods smell is particularly paid attention to.
In suite room furniture field of coating, a difficult problem of puzzlement industry is that furniture is delivered to during installation in terminal client man anti-
Reflecting smell big, pungent unpleasant, many customer requirements are returned goods or exchange goods.In the coating process of furniture, the smell of job site is different
Normal is two kinds of different states with furniture smell after application.The former is the different workmens sensitivity to different organic solvents
Odor type and the penetrating odor sensory difference of different solvents are caused job site smell to be complained because of different personnel by degree, and this passes through
Match different diluents and just can solve problem；The latter is the discomfort smell pair that dried coating film remained after 48 hours after application
The impact of client is maximum, therefore develops that a kind of have very much to the demand meeting market without benzene clean taste type scratch-resistant polyurethane woodcare paint must
Want.
Summary of the invention
The present invention select acid number≤10mgKOH/g without benzene clean taste scratch resistance alkyd resin, this resin does not contains vegetable oil (fat
Fat acid), improve resin film forming clean taste effect；This resin, possibly together with rigid radical, has scratch resistance, hardness height, quick-drying, wear-resisting
Etc. feature, additionally containing more primary hydroxyl in resin structure, sterically hindered little, reactivity is high, and vitrification point is high, favorably
Discharge in solvent, thus accelerate convection current and the increase of top layer viscosity of film internal solvent, reduce smell；This resin is without benzene simultaneously
Without ketone, good leveling property, thus improve the gloss of film, transparency, richness and anti-scratch performance.
The present invention selects aromatic free high hydroxyl value Hydroxylated acrylic resin, can improve the gloss of paint film, richness, hard
Degree, anti scuffing performance, improve the performance such as rate of drying and resist sagging simultaneously.
Due to gloss varnish be easiest to occur secretly to steep, the defect such as prickly heat or ghost, conventional levelling agent such as polyethers or polyester
Modified organosilicon levelling agent is provided that the preferable levelability of paint film and sliding sense, but foam stability is strong, the dark bubble of difficult elimination or prickly heat；And
Polyacrylate flow agent or fluorine richness polyacrylate flow agent can not be effectively improved long wave phenomenon, ghost or hand shadow occur not
Evanescence.The present invention selects aromatic free chelate modified polymer levelling agent or organosilicon-modified acrylic copolymer levelling
Agent, its both unstable bubble, it is provided that again the levelability of excellence eliminating secretly steeps and prickly heat.Special work due to titanate esters group
With, it being substantially improved the long wave levelling of paint film, eliminate after paint film is done and " big wave " phenomenon occurs, it is smooth that prepared paint film has minute surface
Effect.And organosilicon-modified acrylic copolymer levelling agent, there is the strong surface tension reducing wet film, good recoatability and
Ply adhesion, without ghost, improves slipping and scratch resistant.Additionally titanate esters group or organosilicon radical have and improve paint film and resist quiet
Electrical property, plays certain dustproof effect, makes paint film keep as bright as a sixpence effect for a long time.
Aromatic free modified siloxane type defoamer selected by defoamer of the present invention, can effectively eliminate bubble and will not produce again
Surface atomizing and shrinkage cavity phenomenon.
In order to solve techniques as described above problem, the present invention takes techniques below scheme: the present invention relates to a kind of without benzene
Clean taste type scratch resistance PU gloss varnish, is made up of first component resin paint and second curing components agent, and the weight proportion of the first and second components is
1:0.5；Described first component resin enamel-cover containing alkyd resin 50%～85%, acrylic resin 6%～16%, aldehyde ketone resin 5%～10%,
Chelating levelling agent 0.1%～1.0%, defoamer 0.1%～0.6% and solvent 5%～15%；Described second component comprise curing agent 65～
75% and solvent 25～35%.
Wherein, alkyd resin select acid number ＜ 10mgKOH/g without vegetable oil (aliphatic acid) without benzene clean taste scratch resistance alcohol
Acid resin.
Acrylic resin selects hydroxyl value ＞ 100mgKOH/g, acid number ＜ 5mgKOH/g without benzene Hydroxylated acrylic resin.
Aldehyde ketone resin select hydroxyl value >=110mgKOH/g, free formaldehyde content≤0.3% there is high brightness, high-light-fastness
Aldehyde ketone resin.
Chelating levelling agent selects aromatic free titanate esters modified organic silicon levelling agent, titanate esters modified polyacrylate stream
Flat agent, the one of organosilicon-modified acrylic copolymer levelling agent or a combination thereof.
Aromatic free modified siloxane defoamer selected by defoamer.
Solvent is chosen with butyl acetate, ethyl acetate, dimethyl thiacyclohexane, PMA, DBE, HDBE, hydrogenation dearomatization D40 solvent
One or a combination thereof.
Curing agent selects TDI < 0.4%, aromatic-free, the TDI-HDI mixed trimer without heavy metal, TDI/TMP addition
Thing, the one of HDI trimer or a combination thereof.
The present invention proposes a kind of preparation method without benzene clean taste type scratch resistance PU gloss varnish, and its preparation technology is as follows: press
Formulation weight, than meter, adds mixed solvent in dispersion bucket, adds alkyd resin, acrylic resin, aldehyde ketone resin under stirring, high
Speed dispersion 30～50min is uniformly dissolved to resin, adds levelling agent, defoamer, solvent under stirring at low speed, and stirring and adjusting is glued well
Degree, filters and packages and i.e. prepares one without benzene clean taste type scratch resistance PU gloss varnish.
The present invention prepare without benzene clean taste type scratch resistance PU gloss varnish, aromatic-free, without ketone, without heavy metal, be coated with
Dress up film and do not remain discomfort smell after 48 hours, be a kind of environmental protection clean taste type polyurethane woodcare paint；Do not precipitate when storage,
High-solid lower-viscosity, good leveling property, one-pass film-forming is thick and does not produce sagging, has gloss of film high, and the perception as crystal jade is sparkling and crystal-clear
Exquisitely carved, paint film is abundant texture, smooth, as bright as a sixpence as decorative effect, build one pure and fresh, plain, succinct, quiet
Space, brings unique enjoyment that you are relaxed and joyful, adapts to the Aesthetic View of modern, very by the favor in market and liking of client.
The surface protection decoration being widely used in the goods such as woodenware, metal, plastics is used.
Detailed description of the invention
Embodiment 1:
By formulation weight than dispersion bucket in add mixed solvent 9.3 parts, add 85% admittedly contain alkyd resin 72 parts, 70%
Admittedly the Hydroxylated acrylic resin contained 10 parts, 60% aldehyde ketone resin admittedly contained 8 parts, high-speed stirred is uniformly dispersed, high speed dispersion 30～
40min, adds titanate esters modified organic silicon chelating levelling agent 0.3 part, organosilicon-modified acrylic copolymer under stirring at low speed
Levelling agent 0.2 part, modified siloxane defoamer 0.2 part, stir the most qualified after filter and package i.e. prepare without benzene clean taste type anti-
Scratch PU gloss varnish first component.
Embodiment 2:
In dispersion bucket, addition TDI/TMP addition product 40 parts, HDI trimer 30 parts, mixed solvent 30 parts stir, warp
Detect qualified after filter and package i.e. prepare without benzene clean taste type scratch resistance PU gloss varnish second component.
According to first component: second component=1:0.5 proportioning paint, add the viscosity that diluent is transferred to brush.
According to relevant national standard, the performance without benzene clean taste type scratch resistance PU gloss varnish i.e. prepared the present invention is carried out
Detection, product environmental protection index complies fully with country GB18581-2001 " solvent-borne type woodcare paint limits of harmful substances standard ", test
Result is as shown in table 1.
Table 1 is surveyed and environmental protection index test result without benzene clean taste type scratch resistance PU gloss varnish performance
| Test event | Test result |
| Paint film appearance | Light is smooth, uniform |
| Surface drying/min | 24 |
| Do solid work/h | 20 |
| Pencil hardness | 2H |
| Adhesive force/level | 1 |
| Gloss % | 102～106 |
| Richness | Good |
| The transparency | Good |
| Feel | Good |
| Levelability | Excellent |
| Scratch resistant | Good |
| Recoatability | Good |
| Sag resistance | Good, not sagging |
| Free acid content | ≤1.0% |
| Content of formaldehyde | ND |
| VOC content | ≤320g/L |
| Triphen total amount | ≤1.0% |
| Heavy metal | ND |
| TDI | <0.4% |
| Film smell | Odorlessness after 48h |
Although the present invention has been explained in detail and has quoted as proof embodiment, but for those of ordinary skill in the art, aobvious
So the various schemes made, can revise and change as specified above, should be construed as being included within the scope of claim.
Claims (4)
1. one kind without benzene clean taste type scratch resistance PU gloss varnish, it is characterised in that: by first component resin paint and second curing components agent
Composition, the weight proportion of the first and second components is 1: 0.5；Described first component resin enamel-cover containing clean taste type alkyd resin 50%～85%,
Acrylic resin 6%～16%, aldehyde ketone resin 5%～10%, chelating levelling agent 0.1%～1.0%, defoamer 0.1%～
0.6% and solvent 5%～15%；Described second component comprises curing agent 65～75% and solvent 25～35%；
Wherein, described clean taste type alkyd resin is that the acid number ＜ 10mgKOH/g clean taste type without vegetable oil, benzene-free ketone-free is anti-zoned
Hinder alkyd resin；Described acrylic resin is hydroxyl value ＞ 100mgKOH/g, acid number ＜ 5mgKOH/g is without benzene hydroxy acrylic acid tree
Fat；Described aldehyde ketone resin is hydroxyl value >=110mgKOH/g, the light aldehyde ketone resin of free formaldehyde content≤0.3%；Described
Curing agent is TDI content ＜ 0.1%, aromatic-free, TDI-HDI mixed trimer without heavy metal, TDI/TMP addition product,
The combination of one or more of HDI trimer.
2. as claimed in claim 1 a kind of without benzene clean taste type scratch resistance PU gloss varnish, it is characterised in that: described chelating stream
Flat agent is aromatic free titanate esters modified organic silicon levelling agent, titanate esters modified polyacrylate flow agent, organic-silicon-modified
The combination of one or more of acrylic copolymer levelling agent.
3. as claimed in claim 1 a kind of without benzene clean taste type scratch resistance PU gloss varnish, it is characterised in that: described defoamer
For aromatic free modified siloxane defoamer.
4. as claimed in claim 1 a kind of without benzene clean taste type scratch resistance PU gloss varnish, it is characterised in that: described solvent is
Butyl acetate, ethyl acetate, dimethyl thiacyclohexane, PMA, DBE, HDBE, the group of one or more of hydrogenation dearomatization D40 solvent
Close.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123855.9A CN104098997B (en) | 2013-04-10 | 2013-04-10 | A kind of preparation method without benzene clean taste type scratch resistance PU gloss varnish |
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| CN201310123855.9A CN104098997B (en) | 2013-04-10 | 2013-04-10 | A kind of preparation method without benzene clean taste type scratch resistance PU gloss varnish |
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| CN104098997A CN104098997A (en) | 2014-10-15 |
| CN104098997B true CN104098997B (en) | 2016-08-31 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403553A (en) * | 2014-11-19 | 2015-03-11 | 上海展辰涂料有限公司 | Sprayed and coated odorless polyurethane floor paint |
| CN104892880B (en) * | 2015-06-17 | 2017-09-08 | 合众（佛山）化工有限公司 | A kind of preparation method of the TDI tripolymer light curing agent of low free monomer content |
| CN105153923A (en) * | 2015-08-28 | 2015-12-16 | 东来涂料技术（上海）有限公司 | Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof |
| CN105419599B (en) * | 2015-12-03 | 2018-09-28 | 陕西宝塔山油漆股份有限公司 | A kind of high solid aliphatic acrylic polyurethane coating and preparation method |
| CN109627957A (en) * | 2018-10-31 | 2019-04-16 | 澳达树熊涂料(惠州)有限公司 | A kind of plentiful color inhibition showering glossy varnish coating of PU high and preparation method thereof |
| CN112592651A (en) * | 2021-01-05 | 2021-04-02 | 惠州市创彩新材料有限公司 | PU full-odor-free furniture paint |
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| CN1699486A (en) * | 2004-05-17 | 2005-11-23 | 陈日云 | Solvent type double-component PU white gloss woodenware paint |
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Denomination of invention: Preparation method of benzene-free net-flavour scratch-resistant polyurethane (PU) gloss varnish Effective date of registration: 20200103 Granted publication date: 20160831 Pledgee: Guangdong Nanhai rural commercial bank Limited by Share Ltd Sanshui branch Pledgor: Hezhong (Foshan) Chemical Co., Ltd.|Foshan woertai Chemical Co., Ltd Registration number: Y2020980001441 |