CN111943527B - Starch type impregnating compound for electronic yarn and preparation method and application thereof - Google Patents
Starch type impregnating compound for electronic yarn and preparation method and application thereof Download PDFInfo
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- CN111943527B CN111943527B CN202010721872.2A CN202010721872A CN111943527B CN 111943527 B CN111943527 B CN 111943527B CN 202010721872 A CN202010721872 A CN 202010721872A CN 111943527 B CN111943527 B CN 111943527B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/465—Coatings containing composite materials
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/25—Non-macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/40—Organo-silicon compounds
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Abstract
The invention relates to a starch type impregnating compound for electronic yarn, which is characterized by comprising the following components in percentage by weight: 4-8% of starch type film forming agent, 0.2-1.0% of plasticizer, 0.5-2.5% of lubricant, 0.05-0.25% of emulsifier, 0.06-0.1% of antistatic agent, 0.04-0.08% of coupling agent and water: 88.07% -95.15%; wherein the starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch. The glass fiber electronic yarn prepared by coating the starch type impregnating compound for the electronic yarn can effectively improve the wire drawing opening rate, improve the utilization rate of the impregnating compound, and has obvious advantages in the aspects of reducing the hairiness rate of tube yarns, reducing the defects of electronic cloth myriames and improving the A1 grade product rate of weaving shafts.
Description
Technical Field
The invention relates to the technical field of glass fiber manufacturing, in particular to the technical field of electronic spun yarn production, and specifically relates to a starch type impregnating compound for electronic yarn and a preparation method and application thereof.
Background
The glass fiber electronic yarn is manufactured by drawing, forming and twisting glass melt, is brittle and easy to break after being cooled, and can have related use functions only after being coated with a sizing agent. The starch type impregnating compound is a textile type impregnating compound taking starch as a main film forming agent, can enable yarns to have the characteristics of high bundling property, good flexibility, excellent lubricating property and the like, has direct influence on the performance of a subsequent electronic cloth product, and is a mainstream type impregnating compound used in the electronic yarn industry at present. Starch can be divided into high-temperature starch and low-temperature starch according to different cooking temperatures, and the starch which is generally required to be cooked at a temperature of more than 100 ℃ to have a use function is called high-temperature starch; starch that can be used by cooking at a temperature below 100 ℃ is called low temperature starch.
The starch type electronic yarn impregnating compound raw materials that present conventional use have nontoxic, to the human body nonirritant, have and wash easily, decomposition temperature low grade advantage, and the glass fiber cloth cover after the processing is clean white, level, and good to glass fiber protection effect tied in a bundle, the broken filament is few when returning to the degradation weaving:
certain starch type electronic yarn impregnating compounds researched in China produce glass fibers with good bundling property, moderate yarn stiffness and stable flight property, and can reduce the air permeability of grey cloth and reduce the production cost; some electronic yarn impregnating compounds researched in China have excellent film-forming property, starch films formed after the impregnating compounds are coated on glass fibers can effectively reduce hairiness of the glass fibers, have excellent antistatic effect, and can increase the strength of the glass fibers, so that the glass fibers have good tensile property.
However, the impregnating compound for the electronic yarn generally has the defects of low opening rate and utilization rate of the impregnating compound, low weaving shaft A-grade yield and the like in the production and application processes.
Therefore, in order to improve the starting rate and the utilization rate of the impregnating compound in the production process and simultaneously improve the A-grade product rate of the beam of a product, a novel impregnating compound needs to be developed, so that the glass fiber and the product thereof which are coated, prepared and produced by the impregnating compound can obviously realize the purposes in the production, and the production and market requirements are better met.
Disclosure of Invention
The invention aims at the problems and provides a novel starch type impregnating compound, in particular a low-temperature starch type impregnating compound, which is coated to produce glass fiber electronic yarns and has the advantages of high production start-up rate, high impregnating compound utilization rate, low oil-containing mobility, high cop strength and the like.
According to one aspect of the invention, a starch type impregnating compound for electronic yarn is provided, which comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent
Plasticizer: 0.2 to 1.0 percent
Lubricant: 0.5 to 2.5 percent
Emulsifier: 0.05 to 0.25 percent
Antistatic agent: 0.06 percent to 0.1 percent
Coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
Wherein the starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch.
Preferably, the impregnating compound comprises the following components in percentage by weight:
starch type film forming agent: 5 to 7 percent of
Plasticizer: 0.4 to 0.8 percent
Lubricant: 0.8 to 1.6 percent
Emulsifier: 0.08 to 0.16 percent
Antistatic agent: 0.06 to 0.1 percent
Coupling agent: 0.04 to 0.08 percent
Water: 90.26-93.62 percent
Wherein the starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch.
Preferably, the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferably, the plasticizer is one or more of modified epoxy resin, tributyl citrate and chlorinated paraffin.
Preferably, the lubricant is a mixture of one or more of oleic acid, stearic acid and a fatty acid amide.
Preferably, the emulsifier is one or more of polyoxyethylene ether, polyoxypropylene ether and polyalcohol fatty acid ester.
Preferably, the coupling agent is one or more of epoxy silane coupling agent, vinyl silane coupling agent and amino silane coupling agent.
Preferably, the antistatic agent is one or more of a tetraalkylammonium salt, an alkyl betaine, and a glycerin fatty acid ester.
Preferably, the impregnating compound comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent of
Modified epoxy resin: 0.2 to 1.0 percent
Stearic acid: 0.5 to 2.5 percent
Polyoxyethylene ether: 0.05 to 0.25 percent
Tetraalkylammonium salt: 0.06 percent to 0.1 percent
Epoxy silane coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferably, the impregnating compound comprises the following components in percentage by weight:
starch type film forming agent: 5 to 7 percent of
Modified epoxy resin: 0.4 to 0.8 percent
Stearic acid: 0.8 to 1.6 percent
Polyoxyethylene ether: 0.08 to 0.16 percent
Tetraalkylammonium salt: 0.06 percent to 0.1 percent
Epoxy silane coupling agent: 0.04 to 0.08 percent
Water: 90.26-93.62 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
The film forming agent is a starch type film forming agent, and the starch has the effects of coating the film, bonding glass fiber strands, endowing the yarn with stiffness, improving the bundling property of the yarn and the like. Preferably, the starch type film forming agent used in the invention is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the mixture can be fully gelatinized at a lower temperature, so that the yarn has better bonding performance and excellent yarn bundling performance.
The invention further improves the use effect of the sizing agent by controlling the mass ratio of the phosphate modified starch to the hydroxyalkyl modified starch. Preferably, the mass ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1; more preferably, the mass ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 1-2: 1.
The plasticizer provided by the invention can effectively reduce the brittleness of modified starch and improve the flexibility of a starch film. Wherein the plasticizer is preferably one or more of modified epoxy resin, tributyl citrate and chlorinated paraffin. More preferably, the plasticizer is a modified epoxy resin. Specifically, the plasticizer can be one or more of HYDRA P-70, DER331, DRDSE251, 820-40 CX; illustratively, the plasticizer may be HYDRA P-70. The content range of the plasticizer used in the invention is 0.2-1.0%; preferably 0.4 to 0.8%.
The lubricant of the invention is used for improving the flexibility and the lubricating property of the impregnating compound film. Preferably, the lubricant is one or more of oleic acid, stearic acid and a fatty acid amide. The oleic acid, the stearic acid and the fatty acid amide are long carbon chain polymers, the molecular chains can rotate freely, the bonding performance of the lubricant and the starch is improved, the bonding force of the film forming agent and the lubricant is effectively improved, and the impregnating compound film has excellent flexibility and lubricity. The content range of the lubricant used in the invention is 0.5-2.5%; preferably 0.8 to 1.6%.
The emulsifier of the invention mainly has an emulsifying effect on the lubricant. Preferably, the emulsifier is one or more of polyoxyethylene ether, polyoxypropylene ether and polyol fatty acid ester. More preferably, the emulsifier is polyoxyethylene ether, and specifically, the emulsifier can be one or more of AEO, JFC, NP, TWEEN. The polyoxyethylene ether can ensure that the lubricant of the application is stably kept in a micron-sized emulsion state. The content range of the emulsifier used in the invention is 0.05-0.25%, preferably 0.08-0.16%.
The glass fiber is an inorganic non-metallic material and has excellent insulating property, but a large amount of static electricity can be generated in the production process, so the impregnating compound also comprises an antistatic agent. Preferably, the antistatic agent is one or more of tetraalkylammonium salt, alkyl betaine, and glycerin fatty acid ester. More preferably, the antistatic agent is a tetraalkylammonium salt, and particularly, the antistatic agent may be one or more of cetyltrimethylammonium bromide, dioctadecyldimethylammonium chloride, cetyltrimethylammonium chloride and dodecyltrimethylammonium chloride. The content range of the antistatic agent used in the invention is 0.06% -0.1%.
The coupling agent can play a role in bridging between organic matters and inorganic matters, so that the associativity of the glass fiber and the film-forming agent is further improved, and the waste of the impregnating compound in the forming process of the protofilament is reduced. The coupling agent of the present invention is preferably one or more of an epoxy-based silane coupling agent, a vinyl-based silane coupling agent and an aminosilane coupling agent. The coupling agents can effectively maintain the bonding strength between the glass fiber and the plasticizer after the precursor is conditioned, and reduce the hairiness rate of the cop. The content range of the coupling agent used by the invention is 0.04-0.08%.
The water in the invention is used as the disperse phase of each component in the impregnating compound. Among them, deionized water is preferable.
According to a second aspect of the invention, a preparation method of the starch type impregnating compound for the electronic yarn is provided, which specifically comprises the following steps:
1S: adding the emulsifier and 5-10% of water into the melted lubricant, emulsifying and homogenizing to obtain stable lubricant emulsion;
2S: adding the phosphate modified starch and hydroxyalkyl modified starch into 10-30% of normal-temperature water, stirring, dispersing, heating, keeping the temperature for a period of time, and cooling to obtain gelatinized modified starch;
3S: and (3) adding the coupling agent, the plasticizer, the lubricant emulsion and the antistatic agent into the modified starch obtained in the step 2S in sequence, adding the rest water, and stirring uniformly.
Preferably, the specific steps in step 2S are: and adding the phosphate modified starch and the hydroxyalkyl modified starch into 10-30% of normal-temperature water, stirring and dispersing, heating to 86-96 ℃, preserving heat for 30-40 minutes, and cooling to 60-70 ℃ to obtain gelatinized modified starch.
According to a third aspect of the invention, a glass fiber product produced by coating the electronic yarn with a starch-based sizing agent is provided.
According to a fourth aspect of the invention, the application of the starch-type impregnating compound for the electronic yarn in the field of electronic yarn production is provided.
The following is an example of preferable value ranges of each component included in the starch-based sizing agent for electronic yarn according to the present invention.
Preferred example 1
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent of
Plasticizer: 0.2 to 1.0 percent
Lubricant: 0.5 to 2.5 percent
Emulsifier: 0.05 to 0.25 percent
Antistatic agent: 0.06 to 0.1 percent
Coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferred examples two
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 5 to 7 percent of
Plasticizer: 0.4 to 0.8 percent
Lubricant: 0.8 to 1.6 percent
Emulsifier: 0.08 to 0.16 percent
Antistatic agent: 0.06 percent to 0.1 percent
Coupling agent: 0.04 to 0.08 percent
Water: 90.26-93.62 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferred example three
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent of
Modified epoxy resin: 0.2 to 1.0 percent
Stearic acid: 0.5 to 2.5 percent
Polyoxyethylene ether: 0.05 to 0.25 percent
Tetraalkylammonium salts: 0.06 to 0.1 percent
Epoxy silane coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferred example four
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent
Modified epoxy resin: 0.2 to 1.0 percent
Stearic acid: 0.5 to 2.5 percent
Polyoxyethylene ether: 0.05 to 0.25 percent
Tetraalkylammonium salt: 0.06 percent to 0.1 percent
Epoxy silane coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 1-2: 1.
Preferred example five
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 5 to 7 percent of
Modified epoxy resin: 0.4 to 0.8 percent
Stearic acid: 0.8 to 1.6 percent
Polyoxyethylene ether: 0.08 to 0.16 percent
Tetraalkylammonium salt: 0.06 percent to 0.1 percent
Epoxy silane coupling agent: 0.04 to 0.08 percent
Water: 90.26-93.62 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferred example six
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 5 to 7 percent of
Modified epoxy resin: 0.4 to 0.8 percent
Stearic acid: 0.8 to 1.6 percent
Polyoxyethylene ether: 0.08 to 0.16 percent
Tetraalkylammonium salt: 0.06 to 0.1 percent
Epoxy silane coupling agent: 0.04 to 0.08 percent
Water: 90.26-93.62 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 1-2: 1.
Preferred example seven
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent of
Tributyl citrate: 0.2 to 1.0 percent
Oleic acid: 0.5 to 2.5 percent
Polyol fatty acid ester: 0.05 to 0.25 percent
Tetraalkylammonium salt: 0.06 percent to 0.1 percent
Amino silane coupling agent: 0.04 to 0.08 percent
Water: 88.07-93.15 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Preferred example eight
The starch type impregnating compound for the electronic yarn comprises the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent of
Modified epoxy resin: 0.2 to 1.0 percent
Fatty acid amide: 0.5 to 2.5 percent
Polyoxypropylene ether: 0.05 to 0.25 percent
Alkyl betaines: 0.06 percent to 0.1 percent
Vinyl silane coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
The starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch, and the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
Compared with the prior art, the invention has the following beneficial effects:
based on a large amount of laboratory researches and production applications, the starch type impregnating compound for the electronic yarn is reasonably controlled to contain various components and the proportion thereof, and the components are mutually cooperated, so that the binding force of a film forming agent and a lubricant is effectively improved, the impregnating compound film has excellent flexibility and lubricating property, the impregnating compound can be firmly coated on glass fibers in the spinning process, the starting rate of a machine is improved, the utilization rate of the impregnating compound is improved, the oil-containing mobility is reduced, and the strength of the cop is effectively improved.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention, and it is obvious that the described embodiments are some but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Examples
In embodiments 1 to 7 of the present invention, the plasticizer is a modified epoxy resin; the lubricant is stearic acid; the emulsifier is fatty alcohol polyoxyethylene ether (AEO); the antistatic agent is tetraalkylammonium salt; the coupling agent is an epoxy silane coupling agent;
in embodiments 8 to 10 of the present invention, the plasticizer is tributyl citrate; the lubricant is oleic acid; the emulsifier is polyol fatty acid ester; the antistatic agent is tetraalkylammonium salt; the coupling agent is an aminosilane coupling agent;
in embodiments 11 to 12 of the present invention, the plasticizer is a modified epoxy resin; the lubricant is fatty acid amide; the emulsifier is polyoxypropylene ether; the antistatic agent is alkyl betaine; the coupling agent is vinyl silane coupling agent.
It should be noted that: the specific types and amounts of the selected components do not limit the scope of the present application.
The contents of the components in the examples of the starch-based sizing agent for electronic yarn of the present invention are shown in table 1.
TABLE 1
| Components | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Phosphate modified starch | 1.9 | 3.6 | 1.5 | 3.0 | 3.4 | 2.4 |
| Hydroxyalkyl modified starch | 2.1 | 1.2 | 3.0 | 3.0 | 2.6 | 4.8 |
| Plasticizer | 0.2 | 0.5 | 0.4 | 0.6 | 0.6 | 0.8 |
| Lubricant agent | 2.5 | 1.8 | 2.2 | 1.5 | 1.2 | 0.9 |
| Emulsifying agent | 0.25 | 0.18 | 0.22 | 0.15 | 0.12 | 0.09 |
| Antistatic agent | 0.1 | 0.08 | 0.09 | 0.08 | 0.08 | 0.07 |
| Coupling agent | 0.04 | 0.06 | 0.05 | 0.06 | 0.06 | 0.07 |
| Water (W) | 92.91 | 92.58 | 92.54 | 91.61 | 91.94 | 90.87 |
TABLE 1 (continuation)
| Components | Example 7 | Example 8 | Example 9 | Example 10 | Example 11 | Example 12 |
| Phosphate modified starch | 4.8 | 1.5 | 3.0 | 3.4 | 3.0 | 3.2 |
| Hydroxyalkyl modified starch | 3.2 | 3.0 | 3.0 | 2.6 | 3.0 | 2.8 |
| Plasticizer | 1.0 | 0.4 | 0.6 | 0.6 | 0.6 | 0.6 |
| Lubricant agent | 0.5 | 2.2 | 1.5 | 1.2 | 1.5 | 1.2 |
| Emulsifier | 0.05 | 0.22 | 0.15 | 0.12 | 0.15 | 0.12 |
| Antistatic agent | 0.06 | 0.09 | 0.08 | 0.08 | 0.08 | 0.08 |
| Coupling agent | 0.08 | 0.05 | 0.06 | 0.06 | 0.06 | 0.06 |
| Water (W) | 90.31 | 92.54 | 91.61 | 91.94 | 91.61 | 91.94 |
In order to further illustrate the beneficial effects of the invention, two formulas (comparative example 1 and comparative example 2) of the sizing agent for the electronic yarn are selected as comparative examples, and the contents of the components in the comparative examples 1-2 are as follows:
comparative example 1:
corn starch: 2.5 percent
Potato starch: 2.5 percent
Vegetable oil emulsion (soybean oil emulsion): 0.4 percent
Plasticizer (phthalate): 0.3 percent of
Cationic softener (quaternary pyridinium salt): 0.3 percent of
Deionized water: 94 percent of
Comparative example 2:
phosphate modified starch: 1.2 percent of
Hydroxyalkyl modified starch: 1.2 percent of
Plasticizer (modified epoxy resin): 1.5 percent
Lubricant (stearic acid:) 3.0%
Emulsifier (fatty alcohol polyoxyethylene ether): 0.3 percent of
Antistatic agent (tetraalkylammonium salt): 0.03 percent
Coupling agent (epoxy silane coupling agent): 0.10 percent
Deionized water: 92.67 percent
Performance detection
The comparative tests of the performance of the embodiment and the comparative example are carried out, and the test method comprises the following steps:
the impregnating agents of the examples 1-12 and the comparative examples 1-2 are respectively coated on the produced products, a 2000H bushing plate is adopted in the production process, the multi-split drawing process is adopted, the oiling linear speed is 12m/min, the head rotating speed is 4000rpm, the protofilament conditioning time is 24 hours, the spindle speed of a twisting machine is 5000rpm, the oil content of the cop is controlled to be 1.0 +/-0.10%, and the sizing finishing speed is 500 rpm. The produced products were subjected to performance tests, and the test results are shown in table 2.
TABLE 2 results of the Performance test of each of the examples and comparative examples
TABLE 2 (continuation) results of the performance test of each example and comparative example
As can be seen from Table 2, the average impregnating compound utilization rate of the glass fiber electronic yarn prepared from the starch type impregnating compound for the electronic yarn is improved to 73.49-76.70%, and the glass fiber electronic yarn has remarkable advantages in the aspects of reducing the hairiness rate of cop, reducing the defects of ten-thousand-meter electronic cloth and improving the grade A1 of a beam, wherein the performance of example 4 is optimal.
In conclusion, the formula and the process of the starch impregnating compound for the electronic yarn provided by the invention are scientific and reasonable, and the components are mutually cooperated, so that the impregnating compound can be firmly coated on glass fiber in the spinning process, the starting rate of a machine table is improved, the utilization rate of the impregnating compound is improved, the oil-containing mobility is reduced, and the strength of a cop is effectively improved; the hairiness rate of the cop and the defect rate of ten-thousand-meter defects of the electronic cloth are effectively reduced, and the grade A1 product rate of the warp beam is improved.
Various technical features of the above-mentioned embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the above-mentioned embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present disclosure should be considered as being described in the present specification.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The starch impregnating compound for the electronic yarn is characterized by comprising the following components in percentage by weight:
starch type film forming agent: 4 to 8 percent of
Plasticizer: 0.2 to 1.0 percent
Lubricant: 0.5 to 2.5 percent
Emulsifier: 0.05 to 0.25 percent
Antistatic agent: 0.06 percent to 0.1 percent
Coupling agent: 0.04 to 0.08 percent
Water: 88.07-95.15 percent
Wherein the starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch;
the plasticizer is one or more of modified epoxy resin, tributyl citrate and chlorinated paraffin;
the lubricant is one or more of oleic acid, stearic acid and fatty acid amide.
2. The starch type impregnating compound for electronic yarn according to claim 1, which is characterized by comprising the following components in percentage by weight:
starch type film forming agent: 5 to 7 percent of
Plasticizer: 0.4 to 0.8 percent
Lubricant: 0.8 to 1.6 percent
Emulsifier: 0.08 to 0.16 percent
Antistatic agent: 0.06 percent to 0.1 percent
Coupling agent: 0.04 to 0.08 percent
Water: 90.26-93.62 percent
Wherein the starch type film forming agent is a mixture of phosphate modified starch and hydroxyalkyl modified starch.
3. The electronic yarn starch type impregnating compound according to claim 1, wherein the weight ratio of the phosphate modified starch to the hydroxyalkyl modified starch is 1: 2-3: 1.
4. The starch-based size for electronic yarn as claimed in claim 1, wherein said emulsifier is one or more selected from the group consisting of polyoxyethylene ether, polyoxypropylene ether and polyol fatty acid ester.
5. The starch-based sizing agent for electronic yarn as recited in claim 1, wherein said antistatic agent is one or more of tetraalkylammonium salt, alkyl betaine, and glycerin fatty acid ester.
6. The starch type sizing agent for electronic yarn as claimed in claim 1, wherein said coupling agent is one or more of an epoxy silane coupling agent, a vinyl silane coupling agent and an aminosilane coupling agent.
7. The preparation method of the starch type impregnating compound for the electronic yarn according to any one of claims 1 to 6, which is characterized by comprising the following steps:
1S: adding the emulsifier and 5-10% of water into the melted lubricant, emulsifying and homogenizing to obtain stable lubricant emulsion;
2S: adding the phosphate modified starch and hydroxyalkyl modified starch into 10-30% of normal-temperature water, stirring, dispersing, heating, keeping the temperature for a period of time, and cooling to obtain gelatinized modified starch;
3S: and (3) adding the coupling agent, the plasticizer, the lubricant emulsion and the antistatic agent into the modified starch obtained in the step 2S in sequence, adding the rest water, and stirring uniformly.
8. A glass fiber product produced by coating the electronic yarn of any one of claims 1 to 6 with a starch-based sizing agent.
9. The use of the starch-based sizing agent for electronic yarn as claimed in any one of claims 1 to 6 in the field of electronic yarn production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN116535111B (en) * | 2023-02-09 | 2024-01-05 | 巨石集团有限公司 | Impregnating compound for low-twist electronic grade glass fiber, preparation method and application thereof |
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| CN110294600A (en) * | 2019-07-04 | 2019-10-01 | 巨石集团有限公司 | A kind of glass fiber infiltration agent and its preparation method and application |
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