CN104151960A - High-thixotropy modified white glue containing glass fiber micropowder - Google Patents
High-thixotropy modified white glue containing glass fiber micropowder Download PDFInfo
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- CN104151960A CN104151960A CN201410363703.0A CN201410363703A CN104151960A CN 104151960 A CN104151960 A CN 104151960A CN 201410363703 A CN201410363703 A CN 201410363703A CN 104151960 A CN104151960 A CN 104151960A
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Abstract
The invention discloses high-thixotropy modified white glue containing glass fiber micropowder. The glass fiber micropowder with a specific length-diameter ratio is added in a white glue formula; the white glue comprises the following components in percentage by weight: (a) 50%-75% of polyvinyl acetate emulsion, (b) 10%-25% of inorganic fillers, (c) 1%-5% of glass fiber micropowder with specific length-diameter ratio of (20: 1) to (30: 1), (d) 1%-2% of sodium hydroxide and (e) 10%-30% of purified water. The white glue is filled and modified with the glass fiber micropowder with the specific length-diameter ratio, so that the storage and transport stability of the white glue and the thixotropy of the white glue during application are remarkably improved; the formula of the modified white glue can be widely used in polyvinyl acetate white glue with various proportions, and the storage and transport performance and glue applying performance of the white glue are effectively improved on the premise of not changing a basic formula, a production process and production equipment of the white glue.
Description
Technical field
The present invention relates to a kind of modification white glue, particularly relate to a kind of high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist and newly fill a prescription.
Background technology
Thixotropy refers to that liquid can become the state that mobility is larger from thickness state under shearing action, and after shearing action is cancelled, liquid returns to the performance of original thickness state again.The thixotropic quality of white glue has determined white glue production, the stability of storage and the difficulty or ease of glue-applying technique.Good thixotropy is conducive to the stability in coating storage and transportation, and can promote white glue in Process of Applying Glue, to have good mobility, is conducive to improve the even coating of white glue, reduces applying glue difficulty, improves coating quality.Therefore, the thixotropic property of raising white glue is the important method that improves white glue package stability and reduce applying glue difficulty, raising white glue coating quality.
At present, glass fibre micro mist is mainly that the waste silk producing during by glass fiber wire-drawing prepares through industrial means such as ball millings.Due to its relatively cheap price, glass fibre micro mist is used mainly as the compatibilization filler of matrix material at present.According to different ball-milling technologies and working method, can obtain the glass fibre micro mist of different length-to-diameter ratios.Wherein, the glass fibre micro mist of length-to-diameter ratio between 20:1-30:1 is the glass fibre micro mist compared with high length-diameter ratio.Glass fibre micro mist is never used in coating or other industry as thixotropic agent.
Summary of the invention
The object of the present invention is to provide a kind of high thixotropic modification white glue that contains glass fibre micro mist, adopt the glass fibre micro mist of specific length-to-diameter ratio to carry out filling-modified to white glue, can significantly improve the thixotropy of modification white glue, thereby improve, white glue is stored and the stability of transportation, reduces applying glue difficulty, improves white glue coating quality.
The object of the invention is to realize by following measures:
A high thixotropic modification white glue that contains glass fibre micro mist, is characterized in that, by weight percentage, described white glue is comprised of following component:
(a) aqueous polyvinyl acetate emulsion, consumption is 50-75%;
(b) mineral filler, consumption is 10-25%;
(c) the glass fibre micro mist of length-to-diameter ratio between 20:1-30:1, consumption is 1-5%;
(d) sodium hydroxide, consumption is 1-2%;
(e) pure water, consumption is 10-30%.
By above-mentioned mixing of materials and stir to get final product and to obtain described high thixotropic modification white glue.
Aqueous polyvinyl acetate emulsion of the present invention is that commercially available solid content is the emulsion of 50 wt%-60 wt%.
Mineral filler of the present invention comprises one or more in the titanium dioxide, calcium carbonate, aluminium sesquioxide, silicon-dioxide of market sale.
Specific length-to-diameter ratio glass fibre micro mist of the present invention, as the thixotroping conditioning agent in white glue formula, refers in particular to length-to-diameter ratio between 20:1-30:1, the glass fibre micro mist that diameter is 7-11um, and there is sale in market.
Applicant finds under study for action, when length-to-diameter ratio is between 20:1-30:1, and thixotropy tool the increase significantly effect of glass fibre micro mist to white glue formula.The present invention, according to above-mentioned discovery, adds the glass fibre micro mist of length-to-diameter ratio between 20:1-30:1 in conventional white glue formula.The glass fibre micro mist of this length-to-diameter ratio scope add can form after white glue certain sterically hindered, avoid the reunion again of mineral filler in white glue, improve to a certain extent the quiet viscosity of white glue, thereby effectively reduce the sedimentation of white glue mineral filler in preparation and storage and transport process, improve the stability of white glue.And in Process of Applying Glue, the glass fibre micro mist of this length-to-diameter ratio scope can obviously decline the shear viscosity of white glue rapidly along shearing action direction ordered arrangement under external force shearing action, thereby be conducive to the even coating of white glue, reduce applying glue difficulty.
In the present invention, using the glass fibre micro mist of specific length-to-diameter ratio (20:1-30:1) is key problem in technology key element wherein.If while using length-to-diameter ratio to be greater than the glass fibre micro mist of 30:1, larger length-to-diameter ratio can cause the entanglement of glass fibre micro mist self, causes white glue viscosity too high, preparation difficulty strengthens; Meanwhile, under shearing action, the excessive glass fibre micro mist of length-to-diameter ratio is also difficult to realize ordered arrangement along shearing action direction, cannot realize the thixotropic raising of white glue.And when using length-to-diameter ratio to be less than the glass fibre micro mist of 20:1, too short length-to-diameter ratio makes this sterically hindered effect be difficult to embody, and under shearing action, promote the effect of white glue viscosity degradation to be difficult to manifest, thereby cannot realize, improve the thixotropic object of white glue.
Prioritization scheme of the present invention is: the aqueous polyvinyl acetate emulsion 50g that is 50-60% by solid content, and 25g titanium dioxide, 20g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 25:1, the glass fibre micro mist of diameter 10um, said components is mixed and is stirred.The white glue of this formula preparation, due to the sterically hindered effect of glass fibre micro mist, makes white glue have better static stability, can effectively avoid the generation of coating mineral filler sedimentation in preparation and accumulating, improves stability and the storage time of white glue.And the ordered arrangement of glass fibre micro mist under shearing action, has improved the thixotropy of white glue, is more conducive to the reduction of white glue applying glue difficulty and the lifting of sizing efficiency.
Beneficial effect of the present invention: the present invention adds the glass fibre micro mist of the specific length-to-diameter ratio of length-to-diameter ratio between 20:1-30:1 as the thixotropy conditioning agent in white glue formula in conventional white glue formula, has significantly improved the thixotropy of modification white glue.Modification white glue preparation technology of the present invention is simple, and processing ease, without extra additional investment and scrap build.White glue prepared by formula according to the present invention, sterically hindered effect due to glass fibre micro mist, make white glue there is better static stability, can effectively avoid the generation of coating mineral filler sedimentation in preparation and accumulating, improve stability and the storage time of white glue.And the ordered arrangement of glass fibre micro mist under shearing action, has improved the thixotropy of white glue, is more conducive to the reduction of white glue applying glue difficulty and the lifting of sizing efficiency.And the waste silk preparation that the glass fibre micro mist using in this formula is produced for glass fibre, cheap, raw material is easy to get, and can not increase the production cost of product.
In a word, the high thixotropic modification white glue formula that contains glass fibre micro mist of the present invention can be widely used in the polyvinyl acetate (PVA) white glue of various proportionings, under the prerequisite of basic components, production technique and production unit that does not change white glue, effectively improve accumulating performance and the sizability of white glue.
Below in conjunction with specific embodiment, describe the present invention.Protection scope of the present invention is not limited with embodiment, but is limited by claim.
Accompanying drawing explanation
The micronization modified white glue thixotropy of glass fibre of the different length-to-diameter ratios of Fig. 1 improves proportional curve.
Embodiment
Embodiment 1:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 50g that solid content is 60%, 25g titanium dioxide, 20g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 25:1, the glass fibre micro mist of diameter 10um.Said components stir and obtain described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 23%, thixotropy improves 25%.
Embodiment 2:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 60g that solid content is 50%, 20g calcium carbonate, 15g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 30:1, the glass fibre micro mist of diameter 7um.Said components stir and obtain described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 21%, thixotropy improves 23%.
Embodiment 3:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 50g that solid content is 60%, 14g aluminium sesquioxide, 30g pure water, 1g sodium hydroxide, 5g length-to-diameter ratio is 20:1, the glass fibre micro mist of diameter 7um.Said components stir and obtain described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 14%, thixotropy improves 16%.
Embodiment 4:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 75g that solid content is 50%, 13g aluminium sesquioxide, 10g pure water, 1g sodium hydroxide, 1g length-to-diameter ratio is 30:1, the glass fibre micro mist of diameter 7um.Said components stir get final product described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity does not become substantially, and 100
-stime shear viscosity reduce by 17%, thixotropy improves 17%.
Embodiment 5:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 60g that solid content is 50%, 18g calcium carbonate, 16g pure water, 1g sodium hydroxide, 5g length-to-diameter ratio is 25:1, the glass fibre micro mist of diameter 11um.Said components stir get final product described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 21%, thixotropy improves 23%.
Embodiment 6:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 68g that solid content is 50%, 10g aluminium sesquioxide, 16g pure water, 1g sodium hydroxide, 5g length-to-diameter ratio is 25:1, the glass fibre micro mist of diameter 11um.Said components stir get final product described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 23%, thixotropy improves 25%.
Embodiment 7:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 55g that solid content is 60%, 25g silicon-dioxide, 15g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 25:1, the glass fibre micro mist of diameter 11um.Said components stir get final product described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 20%, thixotropy improves 22%.
Embodiment 8:
A high thixotropic modification white glue that contains specific length-to-diameter ratio glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 55g that solid content is 60%, 15g calcium carbonate, 10g titanium dioxide, 14g pure water, 1g sodium hydroxide, 5g length-to-diameter ratio is 25:1, the glass fibre micro mist of diameter 8um.Said components stir get final product described in contain glass fibre micro mist high thixotropic modification white glue.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 22%, thixotropy improves 24%.
Comparative example 1
A modification white glue that contains glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 50g that solid content is 60%, 25g titanium dioxide, 20g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 10:1, the glass fibre micro mist of diameter 10um.Said components stirs and obtains the modification white glue that contains glass fibre micro mist.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 1%, thixotropy improves 3%.
Comparative example 2
A modification white glue that contains glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 50g that solid content is 60%, 25g titanium dioxide, 20g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 18:1, the glass fibre micro mist of diameter 10um.Said components stirs and obtains the modification white glue that contains glass fibre micro mist.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 2%, 100
-stime shear viscosity reduce by 3%, thixotropy improves 5%.
Comparative example 3
A modification white glue that contains glass fibre micro mist, it consists of: the aqueous polyvinyl acetate emulsion 50g that solid content is 60%, 25g titanium dioxide, 20g pure water, 1g sodium hydroxide, 4g length-to-diameter ratio is 32:1, the glass fibre micro mist of diameter 10um.Said components stirs and obtains the modification white glue that contains glass fibre micro mist.
Above-mentioned modification white glue is compared with the white glue that does not add glass fibre micro mist, and 0 shear viscosity improves 15%, 100
-stime shear viscosity improve 6%.Although thixotropy improves 9%, viscosity rise under high shear rate, applying glue difficulty improves, and modification is unsuccessful.
Claims (4)
1. a high thixotropic modification white glue that contains glass fibre micro mist, is characterized in that, by weight percentage, described white glue is comprised of following component:
(a) aqueous polyvinyl acetate emulsion, consumption is 50-75%;
(b) mineral filler, consumption is 10-25%;
(c) the glass fibre micro mist of length-to-diameter ratio between 20:1-30:1, consumption is 1-5%;
(d) sodium hydroxide, consumption is 1-2%;
(e) pure water, consumption is 10-30%.
2. the high thixotropic modification white glue that contains glass fibre micro mist according to claim 1, is characterized in that, described aqueous polyvinyl acetate emulsion is that commercially available solid content is the emulsion of 50 wt %-60 wt %.
3. the high thixotropic modification white glue that contains glass fibre micro mist according to claim 1, is characterized in that, described mineral filler is one or more in commercially available titanium dioxide, calcium carbonate, aluminium sesquioxide, silicon-dioxide.
4. the high thixotropic modification white glue that contains glass fibre micro mist according to claim 1, is characterized in that, described glass fibre micro mist be commercially available length-to-diameter ratio between 20:1-30:1, the glass fibre micro mist that diameter is 7-11um.
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| CN201410363703.0A CN104151960B (en) | 2014-07-29 | 2014-07-29 | A kind of high thixotropic modification white glue containing glass fibre micropowder |
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| CN201410363703.0A CN104151960B (en) | 2014-07-29 | 2014-07-29 | A kind of high thixotropic modification white glue containing glass fibre micropowder |
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| CN104151960B CN104151960B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111378410A (en) * | 2018-12-28 | 2020-07-07 | 浙江荣泰科技企业有限公司 | Single-component rheologically stable high-strength epoxy encapsulating resin adhesive and preparation method thereof |
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| CN103122174A (en) * | 2013-03-14 | 2013-05-29 | 四川城际轨道交通材料有限公司 | Flame-retardant damping paste for high-speed train and preparation method of flame-retardant damping paste |
| CN103484040A (en) * | 2013-09-22 | 2014-01-01 | 抚顺哥俩好化学有限公司 | Environment-friendly nail-free glue for construction and preparation method thereof |
| CN103787626A (en) * | 2012-10-31 | 2014-05-14 | 深圳市爱思宝科技发展有限公司 | Sound insulation binder |
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2014
- 2014-07-29 CN CN201410363703.0A patent/CN104151960B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563292A (en) * | 2004-04-22 | 2005-01-12 | 南京大学表面和界面化学工程技术研究中心 | Composite inorganic nano stabilizer for coal water slurry and coke water slury |
| CN102044709A (en) * | 2010-11-05 | 2011-05-04 | 华南师范大学 | Storage battery colloidal electrolyte and preparation method thereof |
| CN103787626A (en) * | 2012-10-31 | 2014-05-14 | 深圳市爱思宝科技发展有限公司 | Sound insulation binder |
| CN103122174A (en) * | 2013-03-14 | 2013-05-29 | 四川城际轨道交通材料有限公司 | Flame-retardant damping paste for high-speed train and preparation method of flame-retardant damping paste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111378410A (en) * | 2018-12-28 | 2020-07-07 | 浙江荣泰科技企业有限公司 | Single-component rheologically stable high-strength epoxy encapsulating resin adhesive and preparation method thereof |
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| CN104151960B (en) | 2016-08-24 |
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Effective date of registration: 20210128 Address after: 210000 no.90-16, YingYuan South Road, Xuanwu District, Nanjing, Jiangsu Province Patentee after: Jiangsu Chuangshi Technology Co.,Ltd. Address before: 210097, No. 122, Ning Hai Road, Gulou District, Jiangsu, Nanjing Patentee before: NANJING NORMAL University |
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