CN102532336B - Modified vegetable glue, preparation method thereof and application of modified vegetable glue to preparation of emulsion paint - Google Patents
Modified vegetable glue, preparation method thereof and application of modified vegetable glue to preparation of emulsion paint Download PDFInfo
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- CN102532336B CN102532336B CN201110421433.0A CN201110421433A CN102532336B CN 102532336 B CN102532336 B CN 102532336B CN 201110421433 A CN201110421433 A CN 201110421433A CN 102532336 B CN102532336 B CN 102532336B
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Abstract
The invention discloses modified vegetable glue and a preparation method thereof. The preparation method comprises the following steps of: a, heating deionized water to 80-85 DEG C, and adding the vegetable glue for dissolving; b, adding an organic silicon monomer, a catalyst accelerator and a plant monomer 1 hour after the vegetable glue is put, heating to 220-240 DEG C, and preserving heat for 4.5-5.5 hours; and c, adjusting the Ph value to 6-7, wherein 300 parts of water, 150-180 parts vegetable glue, 35-40 parts of an organic silicon monomer, 25 parts of a plant monomer and 0.5-0.8 parts of a catalyst accelerator are used in the steps according to parts by weight; and the plant monomer is a plant monomer which corresponds to the vegetable glue. The modified vegetable glue prepared with the preparation method is a milky liquid in appearance, the solid content is 45-48 percent, the Ph value is 6-7, and the viscosity measured by using a coating-4 cup is 16-20 seconds. The invention further discloses an application of the modified vegetable glue to the preparation of emulsion paint.
Description
Technical field
The present invention relates to a kind of vegetable jelly, particularly a kind of modified plant gum; The invention still further relates to preparation method and the purposes of this modified plant gum in emulsion paint preparation of this modified plant gum.
Background technology
Water-base resin is used the history that has had more than 20 year at home and abroad, but many is all to use oil downstream monomer to synthesize, make on the molecular chain of its whole resin hydrophilic radical in grafting, can with water mixing, thereby with the use of water to replace organic solvent, common ACRYLIC EMULSION for example.Because raw material is the derived product of oil, thereby the impact that water-base resin industry is subject to oil factor clearly.
In order to find certain product can reduce the dependence of water-borne coatings to petroleum products, reduce the material cost of product simultaneously, contriver has carried out a series of trial, and this is comprising renewable vegetable jelly is applied to the trial of water-borne coatings.
Vegetable jelly is a kind of natural plant, comprises sesbania gum, guar gum, flax gum, fenugreek gum etc.The main component of vegetable jelly has: polygalactomannan, protein, Mierocrystalline cellulose, moisture, Ca and Mg etc., polygalactomannan wherein, is a kind of polysaccharide that has comprised mannose backbone and semi-lactosi side chain.Well-known, the thermostability of vegetable jelly, water-soluble, rheological, thickening property, salt tolerance, resistance to acids and bases are all fine, but there is certain defect in the aspects such as its stability in storage, film-forming properties, bonding stability, brushing resistance, when vegetable jelly is applied to water-borne coatings, need to carry out modification and just can reach the performance of emulsion type water-base coating products.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of modified plant gum and preparation method thereof is provided.
In order to achieve the above object, the technical scheme that the preparation method of modified plant gum of the present invention adopts is:
Modified plant gum, its preparation method comprises following steps:
A) intensification deionized water, to 80-85 ℃, drops into subsequently vegetable jelly and makes its dissolving;
B) drop into after vegetable jelly 1 hour, add organosilane monomer, catalytic promoter and plant monomer, and be warming up to 220-240 ℃, subsequently constant temperature 4.5-5.5 hour;
C) regulate Ph value to 6-7;
Wherein, the consumption of the material of above steps calculates and is respectively by weight: 300 parts, water, vegetable jelly 150-180 part, organosilane monomer 35-40 part, 25 parts of plant monomers, catalytic promoter 0.5-0.8 part; Described plant monomer is and the corresponding plant monomer of vegetable jelly.
Preferably as the vegetable jelly of raw material, be selected from any in sesbania gum, guar gum, flax gum and fenugreek gum.
Preferred above-mentioned organosilane monomer is selected from any in methyl chlorosilane, phenyl chlorosilane, methyl ethylene chlorosilane, ethyl trichlorosilane, propyltrichlorosilan, vinyl trichloro silane and γ-chloropropyl trichloro-silane.
Further preferred described plant monomer is powder.
The modified plant gum making according to above-mentioned preparation method that the present invention will provide has following character:
Outward appearance: milky white liquid;
Solid content: 45-48%;
Ph value: 6-7;
Viscosity: 16-20s(is coated with-4 glasss).
In addition, this modified plant gum also has following character: Calcium ion stability is qualified, and brushing resistance can show well, and film forming properties performance is good.
The invention still further relates to the purposes of above-mentioned modified plant gum in emulsion paint preparation.
Embodiment
Below in conjunction with embodiment, the preferred embodiment of the present invention is further detailed.
First the detection method of the Calcium ion stability of mentioning in this specification sheets is described, what described detection method adopted is following steps:
The modified plant gum that adds 5ml in 10ml test tube, then adds the calcium chloride solution of 1ml 5wt%, shakes up standingly, after 1 hour, 24 hours, observes, and as found layering, the phenomenons such as precipitation flocculation are defective, otherwise are qualified.
It should be noted that in addition, following degree is all weight percentage.
Embodiment 1:
The guar gum of take is prepared modified plant gum as raw material.
Prepare according to the following steps modified plant gum:
A) intensification 300g deionized water to 80 ℃, drops into subsequently 150g guar gum and makes its dissolving;
B) drop into after guar gum 1 hour, add 35g methyl chlorosilane, 0.5g catalytic promoter and 25g guar-bean monomer, and be warming up to 220 ℃, constant temperature is 4.5 hours subsequently;
C) regulate Ph value to 6.
The modified plant gum of the present embodiment product has following character:
Outward appearance: milky white liquid;
Solid content: 45%;
Ph value: 6;
Viscosity: 20s(is coated with-4 glasss);
Calcium ion stability: qualified;
Brushing resistance energy: good;
Film forming properties: good.
Embodiment 2:
The fenugreek gum of take is prepared modified plant gum as raw material.
Prepare according to the following steps modified plant gum:
A) intensification 300g deionized water to 85 ℃, drops into subsequently 180g fenugreek gum and makes its dissolving;
B) drop into after fenugreek gum 1 hour, add 35g propyltrichlorosilan, 0.8g catalytic promoter and 25g tonka-bean monomer, and be warming up to 240 ℃, constant temperature is 5.5 hours subsequently;
C) regulate Ph value to 7.
The modified plant gum of the present embodiment product has following character:
Outward appearance: milky white liquid;
Solid content: 48%;
Ph value: 7;
Viscosity: 16s(is coated with-4 glasss);
Calcium ion stability: qualified;
Brushing resistance energy: good;
Film forming properties: good.
As the preferred exemplary of the vegetable jelly of raw material, except guar gum and fenugreek gum that embodiment 1,2 mentions, can also be sesbania gum or flax gum.
In addition, methyl chlorosilane in embodiment 1 is replaceable is the propyltrichlorosilan in embodiment 2, otherwise also can.Thereby as a kind of summary, so long as organosilane monomer all can solve the technical problem to be solved in the present invention.That is to say, except methyl chlorosilane and propyltrichlorosilan, also can select any in phenyl chlorosilane, methyl ethylene chlorosilane, ethyl trichlorosilane, vinyl trichloro silane and γ-chloropropyl trichloro-silane.
Embodiment 3:
Embodiment 3 is that the modified plant gum that embodiment 1 is made carries out emulsion paint preparation.
According to the component of appointment in table 1 and content, according to following step, prepare emulsion paint:
1) tripolyphosphate salt brine solution, Natvosol and ammoniacal liquor are dropped in deionized water, fully stir and reach even thick liquid;
2) drop into successively auxiliary agent, pigment and filler; Wherein said auxiliary agent comprises: 5040 dispersion agents, AMP-95 multifunctional assistant, 309A defoamer, and described pigment comprises: titanium dioxide, zinc sulfide white, described filler comprises: ultrafine heavy calcium, talcum powder, fine particle calcium carbonate;
3) material is fully stirred, and be ground to fineness and be less than 80 μ m;
4) modified plant gum the stirring that add embodiment 1 to make;
5) add film coalescence aid, and utilize ammoniacal liquor to adjust Ph value to 8-9;
6) under being less than the condition of 800 revs/min, fully stirs rotating speed;
7) drop into thickening material adjusting viscosity;
8) mix colours after adding mould inhibitor, making sheet.
Table 1
| Component | Percentage composition (unit: %) | Remarks |
| Deionized water | 25.00 | ? |
| 10% tripolyphosphate salts solution | 1.10 | ? |
| Natvosol | 0.10 | 30000s |
| 5040 dispersion agents | 0.10 | Shenzhen Hai Chuan chemical company |
| AMP-95 multifunctional assistant | 0.10 | U.S. Mykrolis Corp |
| 309A defoamer | 0.10 | Shenzhen Hai Chuan chemical company |
| Titanium dioxide | 17.00 | Rutile-type |
| Zinc sulfide white | 5.00 | 800 orders |
| Ultrafine heavy calcium | 8.00 | 800 orders |
| Talcum powder | 5.00 | 800 orders |
| Fine particle calcium carbonate | 5.00 | 800 orders |
| Modified plant gum | 32.00 | Embodiment 1 makes |
| Film coalescence aid | 1.00 | Yi Siman chemical industry |
| Ammoniacal liquor | 0.20 | ? |
| Thickening material | 0.20 | Shenzhen Hai Chuan chemical company |
| Mould inhibitor | 0.10 | Shenzhen Hai Chuan chemical company |
Embodiment 4:
Repeat embodiment 3, difference is that the modified plant gum that embodiment 1 is made replaces with the modified plant gum that embodiment 2 makes.
Embodiment 5:
The emulsion paint that embodiment 3, embodiment 4 are made carries out the color compatibility experiment of coating products, and the experimental result obtaining is referring to table 2:
Table 2
| Color | Embodiment 3 | Embodiment 4 |
| Phthalocyanine blue is dark | Well | Well |
| Phthalein is dark green dark | Well | Well |
| Carbon black | Well | Well |
| Organic red | Well | Well |
| Yellow | Well | Well |
By above-mentioned test-results, can be drawn, modified plant gum of the present invention can well be applicable to water-borne coatings field.
Embodiment 6:
Emulsion paint product to the miscible experiment of color of embodiment 5 carries out emulsion paint stability test, and storage vessel is vial, is respectively the stability test data of bimestrial stability test data and half a year.Wherein, bimestrial stability test data are referring to table 3:
Table 3
| Color | Embodiment 3 | Embodiment 4 |
| Phthalocyanine blue is dark | Layering, slightly flocculation | Layering, slightly flocculation |
| Phthalein is dark green dark | Layering, slightly flocculation | Layering, slightly flocculation |
| Carbon black | Well | Well |
| Organic red | Well | Well |
| Yellow | Well | Well |
The stability test data of half a year are referring to table 4:
Table 4
| Color | Embodiment 3 | Embodiment 4 |
| Phthalocyanine blue is dark | Layering, slightly flocculation | Layering, slightly flocculation |
| Phthalein is dark green dark | Layering, slightly flocculation | Layering, slightly flocculation |
| Carbon black | Well | Well |
| Organic red | Well | Well |
| Yellow | Well | Well |
By above-mentioned experimental result, can be learnt, for example, when the organic dark colour of configuration (phthalocyanine blue is dark and the dark green dark color of phthalein), in its stability test, there is the phenomenon of layering and slight flocculation, but for example, while configuring other colors (carbon black, organic red, yellow), all do not occurred this class problem.
In addition, aspect the stability of emulsion paint, contriver found through experiments, and emulsion paint prepared by the modified plant gum stability after storing 6 months is significantly subject to the impact of auxiliary agent, and the auxiliary agent of some alkali swellings is because the volatilization of basic ion can cause emulsion paint to occur demixing phenomenon.
In conjunction with embodiment, the present invention has been done to detailed explanation above, but the present invention is not limited to this, any those skilled in the art, in possessed ken, under the prerequisite without prejudice to aim of the present invention, can make various distortion and modification to it.
Claims (5)
1. the preparation method of modified plant gum, is characterized in that comprising following steps:
Intensification deionized water, to 80-85 ℃, drops into subsequently vegetable jelly and makes its dissolving;
Drop into after vegetable jelly 1 hour, add organosilane monomer, catalytic promoter and plant monomer, and be warming up to 220-240 ℃,
Constant temperature 4.5-5.5 hour subsequently;
Regulate pH value to 6-7;
Wherein, the consumption of the material of above steps calculates and is respectively by weight: 300 parts, water, and vegetable jelly 150-180 part,
Organosilane monomer 35-40 part, 25 parts of plant monomers, catalytic promoter 0.5-0.8 part; Described plant monomer is and the corresponding plant monomer of vegetable jelly;
The organosilane monomer dropping into is selected from any in methyl chlorosilane, phenyl chlorosilane, methyl ethylene chlorosilane, ethyl trichlorosilane, propyltrichlorosilan, vinyl trichloro silane and γ-chloropropyl trichloro-silane.
2. according to the preparation method of the modified plant gum described in claim 1, it is characterized in that: the vegetable jelly of input is selected from any in sesbania gum, guar gum, flax gum and fenugreek gum.
According to described in claim 1-2 any one preparation method, it is characterized in that: described plant monomer is powder.
4. the modified plant gum making according to the preparation method of modified plant gum described in claim 1-2 any one, is characterized in that: described modified plant gum has following character:
Outward appearance: milky white liquid;
Solid content: 45-48%;
PH value: 6-7;
Viscosity: 16-20s;
Described viscosity is used-4 glasss of paintings to measure.
5. the purposes of modified plant gum according to claim 4 in emulsion paint preparation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110421433.0A CN102532336B (en) | 2011-12-16 | 2011-12-16 | Modified vegetable glue, preparation method thereof and application of modified vegetable glue to preparation of emulsion paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110421433.0A CN102532336B (en) | 2011-12-16 | 2011-12-16 | Modified vegetable glue, preparation method thereof and application of modified vegetable glue to preparation of emulsion paint |
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| CN102532336B true CN102532336B (en) | 2014-09-03 |
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| CN105440815A (en) * | 2015-11-28 | 2016-03-30 | 惠州卫生职业技术学院 | Preparation method of antirust emulsion paint |
| CN106243841B (en) * | 2016-08-10 | 2018-07-20 | 广州市英源文化用品有限公司 | A kind of preparation method of the nontoxic water based paint of toy for children |
| CN109536065A (en) * | 2017-07-26 | 2019-03-29 | 刘若慧 | A kind of medical adhesive tape and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977012A (en) * | 2004-06-30 | 2007-06-06 | 大日本油墨化学工业株式会社 | Aqueous coating composition |
| CN101443512A (en) * | 2005-12-19 | 2009-05-27 | 蓝星有机硅法国公司 | Fibrous support comprising a silicone coating |
| CN101555663A (en) * | 2009-03-31 | 2009-10-14 | 江西博大化工有限公司 | Modified vegetable gum sizing material and preparation technique thereof |
| CN101712854A (en) * | 2008-10-07 | 2010-05-26 | 吉林市道特化工科技有限责任公司 | Adhesion agent containing natural plant collagen |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977012A (en) * | 2004-06-30 | 2007-06-06 | 大日本油墨化学工业株式会社 | Aqueous coating composition |
| CN101443512A (en) * | 2005-12-19 | 2009-05-27 | 蓝星有机硅法国公司 | Fibrous support comprising a silicone coating |
| CN101712854A (en) * | 2008-10-07 | 2010-05-26 | 吉林市道特化工科技有限责任公司 | Adhesion agent containing natural plant collagen |
| CN101555663A (en) * | 2009-03-31 | 2009-10-14 | 江西博大化工有限公司 | Modified vegetable gum sizing material and preparation technique thereof |
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