CN101391865A - Sizing agent special for high moisturizing efficiency medium-alkali chopped strand and preparing method thereof - Google Patents
Sizing agent special for high moisturizing efficiency medium-alkali chopped strand and preparing method thereof Download PDFInfo
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- CN101391865A CN101391865A CNA2008101214727A CN200810121472A CN101391865A CN 101391865 A CN101391865 A CN 101391865A CN A2008101214727 A CNA2008101214727 A CN A2008101214727A CN 200810121472 A CN200810121472 A CN 200810121472A CN 101391865 A CN101391865 A CN 101391865A
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Abstract
The invention discloses a special size of medium-alkali chopped strand with high moisture rate and a preparation method thereof. The special size comprises water-soluble ureido silane coupling agent, cation lubricant, non-ion lubricant, moisturizing agent, organic weak acid and water; the ureido silane coupling agent accounts for 3 to 8 percent of the solid weight of the size, the cation lubricant accounts for 40 to 60 percent thereof, the non-ion lubricant accounts for 10 to 20 percent thereof, the moisturizing agent accounts for 10 to 30 percent thereof, the organic weak acid accounts for 0.5 to 2 percent thereof, the content of the water accounts for 95 to 99 percent the total weight of the size and the pH value of the size is 3.0 to 5.0. The ureido silane coupling agent adopts urea propyl trialk-oxysilane, the cation lubricant adopts amido salt with ring structure, the moisturizing agent adopts one or two of polyvinyl alcohol and polyethylene glycol, and the organic weak acid adopts one of glacial acetic acid, acetic acid, methanoic acid and citric acid. The invention also comprises the preparation method of the size, has good hydrophilicity, can prevent the medium-alkali glass from being corroded by water and does not have influence on the strength of the glass fibre.
Description
Technical field:
The present invention relates to alkali special sizing agent for chopped strands and compound method thereof in a kind of high rate of preserving moisture, the production of alkali wet chopped fiber in being mainly used in.
Background technology:
Fiber glass industry is born in eighties of last century thirties, through 70 years of development, has become a new industry with vigorous vitality.In the glass fibre ultimate production, about 70% is used to do the strongthener of matrix material, wherein is mainly used in plastics and strengthens.Compare with other fortifying fibres such as carbon fiber, aramid fiber, natural fiber, it all accounts for absolute dominant position in a plurality of fields.Had more than 5000 kind at present, more than 60000 specification purposes spreads all over electronics, communication, building, chemical industry, metallurgy, nuclear energy, Aeronautics and Astronautics, weapons, naval vessels, car and boat, ocean exploitation, and high-technology field such as genetic engineering.And medium-alkali glass fibre is widely used in battery separator owing to possess good acid resistance, roofing felt, fields such as chemical storage tank surface felt and enhancing gypsum.This chopped strand is by wire drawing, applies treating compound, and weak point is cut into the certain-length fiber, directly packs then to form.
The complete processing of above product is generally in water or in the aqueous solution disperses, and requires glass fibre that good dispersiveness is arranged in water or in the aqueous solution.And a dispersed water ratio that important indicator is exactly a glass fibre of influence owing to fail after this glass fibre production to use at once, is easy to dry out in storage or long-distance transport process, and is special even more serious under the weather of sweltering heat.In the process that dries out, glass fibre is bonding mutually, finally influences the dispersiveness in the water or the aqueous solution.Because the widespread use of this product, when transporting all parts of the world to, when finding to transport country variant to, because haulage time is different with environment, this product moisture before use is all different, finally also has very big difference at water or aqueous solution dispersiveness.
In order to address this problem, with the storage rate of the moisture of alkali chopped strand in storage or transportation in improving, traditional mode is to adopt vacuum packaging.This way normally product vacuum pumping in the packing bag, is pricked sack dead in wrapping process then.Though this way is effect to some extent within a certain period of time, also has some undesirable limitation.Mainly be that this method is easy to make yarn bundle conglutinate in vacuum, the alkali chopped strand is deposited the easily intensity of reduction self of back in the water midium or long term in the while, and traditional treating compound can not play a very good protection.
Summary of the invention:
Technical problem to be solved by this invention is to overcome existing above-mentioned deficiency in the prior art, and provide alkali special sizing agent for chopped strands and compound method thereof in a kind of high rate of preserving moisture, can be convenient for production, do not need additionally to increase equipment, and in the intensity that guarantees not reduce when moisture loses not really soon glass fibre.
The present invention solves the problems of the technologies described above the technical scheme that is adopted and comprises: this height alkali special sizing agent for chopped strands in the rate of preserving moisture, it is characterized in that comprising water miscible urea groups silane coupling agent, cationic lubricant, non-ionic lubricant, wetting Agent for Printing Inks, organic monoacid and water, the urea groups silane coupling agent accounts for 3～8% for the treatment of compound solid masses, cationic lubricant accounts for 40～60% for the treatment of compound solid masses, non-ionic lubricant accounts for 10～20% for the treatment of compound solid masses, wetting Agent for Printing Inks accounts for 10～30% for the treatment of compound solid masses, organic monoacid accounts for 0.5～2% for the treatment of compound solid masses, the content of water accounts for 95～99% for the treatment of compound gross weight, and the pH value for the treatment of compound is 3.0～5.0.
Urea groups silane coupling agent of the present invention can adopt the urea propyl trialkoxy silane.The urea groups silane coupling agent contains the hydrolyzable bond or the hydrolysate of a silane Siliciumatom, helps to improve product strength.
Cationic lubricant of the present invention can adopt the ring texture amide salt.The existence of cationic lubricant makes in the short glass fiber production process wire-drawing operation more stable.
Wetting Agent for Printing Inks of the present invention adopts one or both in polyvinyl alcohol, the polyoxyethylene glycol.
Organic monoacid of the present invention adopts a kind of in Glacial acetic acid, acetate, formic acid and the citric acid, uses Glacial acetic acid the best.
The present invention solves the problems of the technologies described above the technical scheme that is adopted and also comprises the preserve moisture compound method of alkali special sizing agent for chopped strands in the rate of a kind of aforesaid height, it is characterized in that may further comprise the steps: in a clean container, add half total amount deionized water, and then add half amount of organic monoacid in the treating compound composition, fully stir after 2～5 minutes, slowly add the urea groups silane coupling agent in the treating compound composition again, continue to stir 20～30 minutes; Cationic lubricant in the treating compound composition is heated to the fully dilution of 60～80 degree in second half organic monoacid, add an amount of deionized water at room temperature dilution postcooling again and add container again to room temperature; Wetting Agent for Printing Inks in the treating compound composition abundant agitation and dilution postcooling in 60～80 degree hot deionized waters adds container again to room temperature; Non-ionic lubricant in the treating compound composition fully adds container after the dilution in deionized water at room temperature; If the treating compound pH value can not reach optimum range, add an amount of organic monoacid and adjust and stir, reach optimum range until pH value.This treating compound composition is applicable to the fiber of producing mat.
The present invention can not influence plain boiled water (white water) system that the client uses, the long-time use, and the white-water system that disperses chopped strand to use is still very stable, and can recycle.This treating compound composition has also improved the physicals of fibre reinforced composites products.No easy volatile material in the treating compound composition of the present invention helps to make treating compound to become to be divided into eco-friendly raw material.
Embodiment:
The invention relates to alkali special sizing agent for chopped strands in a kind of high rate of preserving moisture, the middle alkali chopped strand that scribbles this treating compound composition is applicable to the surperficial felt of FRP, roofing felt, the floor felt, store battery with felt and PCB with felt etc., this treating compound has good hydrophilicity, and intercepts the erosion of water centering alkali glass again, finally can't influence the intensity of goods.
Embodiment of the invention treating compound contains one or both at least a urea groups silane (aminosi lane) coupling agent, a kind of cationic lubricant, a kind of non-ionic lubricant, polyvinyl alcohol and the polyoxyethylene glycol, a kind of organic monoacid.Above material solid quality accounts for the 1-5% for the treatment of compound total mass, all the other materials are water, the content of water accounts for 95～99% for the treatment of compound gross weight, the urea groups silane coupling agent accounts for 3～8% for the treatment of compound solid masses, cationic lubricant account for the treating compound solid masses 40～60%, non-ionic lubricant accounts for 10～20% for the treatment of compound solid masses, wetting Agent for Printing Inks accounts for 10～30% for the treatment of compound solid masses, organic monoacid accounts for 0.5～2% for the treatment of compound solid masses, the pH value for the treatment of compound is between 3.0～5.0, and 3.5～4.5 better.
The coupling agent that uses in the silane combination comprises and contains Si (OR)
2The silicomethane of structure, Si (OR)
2In R be a kind of organic group such as alkyl.Low alkyl such as methyl, ethyl and sec.-propyl etc. are preferable.The effect of silane coupling agent is the adhesion that improves membrane-forming agent and glass fibre, fracture of wire and filoplume situation when reducing later process.The urea groups silane coupling agent that is applicable to the silane combination includes, but is not limited to urea propyl trialkoxy silane (gamma-ureidopropyltrialkoxysilane) (A-1160 of MOMENTIVE).
This treating compound composition comprises at least a non-ionic lubricant.Non-ionic lubricant serves as moistening lubrication prescription, in drawing process glass fibre is played a protective role.The example of the particularly suitable of non-ionic lubricant comprises PEG200, PEG600, PEG18000 and PEG20000.In an illustrated embodiments, non-ionic lubricant is PEG18000.
Also comprise at least a cationic lubricant in this treating compound composition, cationic lubricant can reduce the wearing and tearing between glass fibre.The example that cationic lubricant is suitable includes, but is not limited to the ring texture amide salt.The amount of cationic lubricant preferably is enough to provide the active lubricant of certain level, forms coating, reduces the formation of filoplume, and with white-water system good matching is arranged.
Also comprise at least a wetting Agent for Printing Inks in this treating compound composition, wetting Agent for Printing Inks is a kind of high molecular weight water soluble polymer, and for example polyvinyl alcohol, polyoxyethylene glycol are best with the polyvinyl alcohol.
The combustible content of glass fibre (being that treating compound is coated on the ratio that amount on the glass fibre accounts for the glass fibre quality) is controlled at 0.1～0.5%.
The compound method for the treatment of compound described in the present invention:
(size is decided according to amount of preparation at a clean container, requirement carry can speed governing agitator be good) in add half total amount deionized water, and then add half amount of organic monoacid in the treating compound composition, fully stir after 2-5 minute, slowly add the water-soluble urea groups silane coupling agent in the treating compound composition again, continue to stir (stirring velocity is the best not produce vortex) 20-30 minute;
Cationic lubricant in the treating compound composition is heated to the fully dilution of 60～80 degree in second half organic monoacid, add an amount of deionized water at room temperature dilution postcooling again and add container again to room temperature;
Wetting Agent for Printing Inks in the treating compound composition abundant agitation and dilution postcooling in 60～80 degree hot deionized waters adds container again to room temperature;
Non-ionic lubricant in the treating compound composition fully adds container after the dilution again in deionized water at room temperature;
If the treating compound pH value can not reach optimum range, add an amount of organic monoacid and adjust and stir, reach optimum range until pH value.
The present invention compared with prior art can improve the rate of preserving moisture under the situation that satisfies short cutting process requirement, prolonged the shelf-time, has improved the flexibility and the mechanical mechanics property of goods simultaneously.
Treating compound representative formula of the present invention is as follows
| The treating compound composition | Solid masses per-cent (%) |
| The urea groups silane coupling agent | 3-8 |
| Cationic lubricant | 40-60 |
| Non-ionic lubricant | 10-20 |
| Wetting Agent for Printing Inks | 10-30 |
| Organic monoacid | 0.5-2.0 |
Wherein treating compound composition self solids content is as follows
| The treating compound composition | Self solid masses per-cent (%) |
| The urea groups silane coupling agent | 60-99 |
| Cationic lubricant | 80-100 |
| Non-ionic lubricant | 80-100 |
| Wetting Agent for Printing Inks | 90-100 |
The purity of organic monoacid of the present invention is 90～100%.
The explanation of embodiment of the invention determination of formula and experimental technique:
For alkali chopped strand in allowing reaches the high rate of preserving moisture, while energy stably manufactured, the requirement that satisfied weak point is cut, do not influence the dispersive white-water system again, we have selected the combination of urea groups silane coupling agent/cationic lubricant/non-ionic lubricant/wetting Agent for Printing Inks/organic monoacid for use, and such combination can guarantee the high rate of preserving moisture.
The fiber moisture retention is with a microwave and dispersed Instrument measuring among the present invention.Be glass fibre under the environment of certain humiture, temperature is controlled at (20-25) degree for good, and it is good that humidity is controlled at (50-70) %.Section is carried out dispersion experiment to the moisture in the glass fibre with in plain boiled water at regular intervals.
Among the present invention in the above-mentioned plain boiled water dispersion experiment method as follows:
Measuring the 1000ml shelf-time is no more than 1 day plain boiled water, pours in the glass beaker of 2000ml the glass fibre of weighing plain boiled water weight 0.1% then, disposable pouring in the beaker that fills plain boiled water into.To stir instrument and put into beaker, adjust rotating speed, stir 1 minute to 60rpm.
The plain boiled water that stirs and mixture of glass fibers slowly poured in the suction filtration cup together (put the thin iron wire filtering net of a slice in the suction filtration cup earlier), after moisture exhausts, glass fibre is put into oven for drying (oven temperature control can not surpass 100 degree) with net, is the best with (65-85).
Be the example and the test result (numerical value wherein is the per-cent for the treatment of compound solid weight) of some prescriptions below:
Annotate: after prescription solids content A refers to that each composition prepares according to a certain percentage in the treating compound, dry the per-cent number that resulting solid weight accounts for initial weight, unit is (%).
Size content B assignment makes the back treating compound and is coated to the per-cent number that solid weight behind the fiberglass surfacing accounts for the total glass fibre weight, and unit is (%).
From above prescription test case, we can find out therefrom that example 1,2,3 meets designing requirement substantially, and wherein example 2 is better, and above ratio still has the space of optimization.
The embodiment of the invention is according to the technical characterstic of moisture retention and use, screening by the treating compound raw material, optimization of formulation, adopt general wet chopped production technique and common technology of the package, just can produce the humectant weak point and cut product, do not need the extra packing of preserving moisture that increases, end article can satisfy the demand of high-end market.
Claims (6)
1, alkali special sizing agent for chopped strands in a kind of high rate of preserving moisture, it is characterized in that: comprise water miscible urea groups silane coupling agent, cationic lubricant, non-ionic lubricant, wetting Agent for Printing Inks, organic monoacid and water, the urea groups silane coupling agent accounts for 3～8% for the treatment of compound solid masses, cationic lubricant accounts for 40～60% for the treatment of compound solid masses, non-ionic lubricant accounts for 10～20% for the treatment of compound solid masses, wetting Agent for Printing Inks accounts for 10～30% for the treatment of compound solid masses, organic monoacid accounts for 0.5～2% for the treatment of compound solid masses, the content of water accounts for 95～99% for the treatment of compound gross weight, and the pH value for the treatment of compound is 3.0～5.0.
2, alkali special sizing agent for chopped strands in a kind of high rate of preserving moisture according to claim 1 is characterized in that: described urea groups silane coupling agent adopts the urea propyl trialkoxy silane.
3, alkali special sizing agent for chopped strands in a kind of high rate of preserving moisture according to claim 1 is characterized in that: described cationic lubricant adopts the ring texture amide salt.
4, alkali special sizing agent for chopped strands in a kind of high rate of preserving moisture according to claim 1 is characterized in that: described wetting Agent for Printing Inks adopts one or both in polyvinyl alcohol, the polyoxyethylene glycol.
5, alkali special sizing agent for chopped strands in a kind of high rate of preserving moisture according to claim 1 is characterized in that: described organic monoacid adopts a kind of in Glacial acetic acid, acetate, formic acid and the citric acid.
6, the described height of the arbitrary claim of a kind of claim 1～5 compound method of alkali special sizing agent for chopped strands in the rate of preserving moisture, it is characterized in that may further comprise the steps: in a clean container, add half total amount deionized water, and then add half amount of organic monoacid in the treating compound composition, fully stir after 2～5 minutes, slowly add the urea groups silane coupling agent in the treating compound composition again, continue to stir 20～30 minutes; Cationic lubricant in the treating compound composition is heated to the fully dilution of 60～80 degree in second half organic monoacid, add an amount of deionized water at room temperature dilution postcooling and add container again to room temperature; Wetting Agent for Printing Inks in the treating compound composition abundant agitation and dilution postcooling in 60～80 degree hot deionized waters adds container again to room temperature; Non-ionic lubricant in the treating compound composition fully adds container after the dilution in deionized water at room temperature; If the treating compound pH value can not reach optimum range, add an amount of organic monoacid and adjust and stir, reach optimum range until pH value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101214727A CN101391865B (en) | 2008-10-06 | 2008-10-06 | Sizing agent special for high moisturizing efficiency medium-alkali chopped strand and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101214727A CN101391865B (en) | 2008-10-06 | 2008-10-06 | Sizing agent special for high moisturizing efficiency medium-alkali chopped strand and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101391865A true CN101391865A (en) | 2009-03-25 |
| CN101391865B CN101391865B (en) | 2011-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701604A (en) * | 2012-05-23 | 2012-10-03 | 安徽丹凤集团桐城玻璃纤维有限公司 | Warp slurry of fiberglass electronic textile yarn |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933381A (en) * | 1987-08-27 | 1990-06-12 | Owens-Corning Fiberglas Corporation | Resin compatible size composition for small diameter glass fibers |
| CN1041622C (en) * | 1992-04-29 | 1999-01-13 | 国家建筑材料工业局南京玻璃纤维研究设计院 | Infiltrant of glass fibre used for wet felt |
| US5773146A (en) * | 1995-06-05 | 1998-06-30 | Ppg Industries, Inc. | Forming size compositions, glass fibers coated with the same and fabrics woven from such coated fibers |
| US6228281B1 (en) * | 1998-10-30 | 2001-05-08 | Owens Corning Fiberglas Technology | Sizing for glass fibers having low nonionic and cationic lubricant content |
| CN1232464C (en) * | 2003-12-11 | 2005-12-21 | 章峻 | Water dispersable glass fiber sizing material |
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2008
- 2008-10-06 CN CN2008101214727A patent/CN101391865B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701604A (en) * | 2012-05-23 | 2012-10-03 | 安徽丹凤集团桐城玻璃纤维有限公司 | Warp slurry of fiberglass electronic textile yarn |
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