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Adhesive for electronic grade glass fiber yarn and preparation method thereof

A glass fiber yarn and adhesive technology, used in cellulose adhesives, non-polymer adhesive additives, adhesives, etc., can solve the problems of easy re-breakage of yarns, lowering of fabric quality, and high temperature resistance of adhesives. , to achieve the effect of low wire breaking rate and warping rate, reducing downtime and high temperature resistance.

Active Publication Date: 2021-08-06
山东兴国大成电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First of all, the existing adhesives have low adhesion, which leads to the problem of warped joints. Not only will the woven fabric surface be uneven, but the joints with warped joints are easy to break again (referred to as broken wires). parking treatment
Joints that are repeatedly bonded and broken not only reduce production efficiency, but also affect the appearance quality of products
In the prior art, in order to improve the firmness of the joint, the method of increasing the lap length of the joint is often adopted. The lap length of the existing joint is 10-12 cm. Although the adhesive force has been improved, the joint becomes long and Obviously, obvious defects are formed on the cloth surface, which reduces the quality of the cloth and affects the selling price
[0005] Secondly, the existing adhesives have poor flexibility after drying, resulting in too hard joints and difficult stretching. During the weaving process, the yarn is not easy to pass through the gap of the reed that controls the warp density, and the joints that are too hard are difficult to bend, and the yarn is easy to reassemble. fracture
Finally, the existing adhesives are not resistant to high temperature, and there are many residues after sintering
When the electronic cloth is sintered at a high temperature above 300°C, the existing adhesive residue is relatively high, and obvious, light yellow stains will be formed on the surface of the cloth after sintering, which will affect the appearance and price of the electronic cloth.
At the same time, when the existing adhesive-bonded yarn is surface-treated at a steam temperature of 140°C, after the joint is passed through the coupling agent, there are still light yellow traces, which are very obvious on the cloth surface of the electronic cloth, as marked, the joint Location
Affect the appearance quality of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Adhesive for electronic grade glass fiber yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Examples 1 to 5 are specific examples of an adhesive for electronic grade glass fiber yarn and its preparation method according to the present invention, and Example 1 is the best implementation mode.

[0027] Ethyl cellulose, manufacturer: Sinopharm Chemical Reagents; CAS number: 9004-57-3, density 1.07 g / cm3;

[0028] Sodium carboxymethyl cellulose, manufacturer: Sinopharm Chemical Reagents;

[0029] Dibutyl phthalate, manufacturer: Tianjin Zhiyuan Chemical Reagent Co., Ltd., CAS No.: 84-74-2.

[0030] Example 1

[0031] The adhesive of this embodiment includes the following raw materials in parts by weight: 1.5 parts of ethyl cellulose, 6.5 parts of 40v / v% ethanol aqueous solution, 2.7 parts of sodium carboxymethyl cellulose, and 0.7 parts of dibutyl phthalate;

[0032] The preparation method of the present embodiment adhesive comprises the following steps:

[0033] 1) Put 1.5 parts of ethanol aqueous solution into the stirrer, turn on the stirrer, pour ethyl cell...

Embodiment 2

[0038] The adhesive of this embodiment includes the following raw materials in parts by weight: 1.3 parts of ethyl cellulose, 6.3 parts of 50v / v% ethanol aqueous solution, 2.8 parts of sodium carboxymethyl cellulose, and 0.6 parts of dibutyl phthalate;

[0039] The preparation method of the present embodiment adhesive comprises the following steps:

[0040] 1) Put 2.6 parts of ethanol aqueous solution into the stirrer, turn on the stirrer, pour ethyl cellulose in parts by weight, rotate at 80 rpm, and stir for 2 hours to obtain ethyl cellulose solution;

[0041] 2) Put 3.7 parts of ethanol aqueous solution into the stirrer, turn on the stirrer, pour sodium carboxymethyl cellulose in parts by weight, rotate at 80 rpm, and stir for 2 hours to obtain sodium carboxymethyl cellulose solution;

[0042] 3) Pour the sodium carboxymethylcellulose solution into the ethylcellulose solution at a speed of 120 rpm and stir for 2 hours to obtain a mixed solution;

[0043] 4) Add dibutyl pht...

Embodiment 3

[0045] The adhesive of this embodiment includes the following raw materials in parts by weight: 1.8 parts of ethyl cellulose, 7 parts of 45v / v% ethanol aqueous solution, 2.3 parts of sodium carboxymethyl cellulose, and 0.8 parts of dibutyl phthalate;

[0046] The preparation method of the present embodiment adhesive comprises the following steps:

[0047] 1) Put 2.7 parts of ethanol aqueous solution into the stirrer, turn on the stirrer, pour ethyl cellulose in parts by weight, rotate at 120 rpm, stir for 1.5 hours, and obtain ethyl cellulose solution;

[0048] 2) Put 4.3 parts of ethanol aqueous solution into the stirrer, turn on the stirrer, pour sodium carboxymethyl cellulose in parts by weight, rotate at 120 rpm, and stir for 1.5 hours to obtain sodium carboxymethyl cellulose solution;

[0049] 3) Pour the sodium carboxymethylcellulose solution into the ethylcellulose solution at a speed of 80 rpm, and stir for 3 hours to obtain a mixed solution;

[0050] 4) Add dibutyl pht...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

An adhesive used for electronic grade glass fiber yarn and a preparation method thereof belong to the technical field of electronic grade glass fiber. The following raw materials are included in parts by weight: 1-2 parts of ethyl cellulose, 6-8 parts of ethanol aqueous solution, 2-3 parts of sodium carboxymethyl cellulose, and 0.5-1.0 parts of dibutyl phthalate. The preparation method comprises the following steps: 1) mixing and stirring ethanol and ethyl cellulose to obtain an ethyl cellulose solution; 2) mixing and stirring ethanol and sodium carboxymethyl cellulose to obtain a sodium carboxymethyl cellulose solution; 3) ) Pour the sodium carboxymethyl cellulose solution into the ethyl cellulose solution, and stir for 2 to 3 hours to obtain a mixed solution; 4) Add dibutyl phthalate to the mixed solution in parts by weight, and stir evenly to obtain an adhesive agent. The adhesive used for the electronic grade glass fiber yarn of the present invention has strong adhesive force and high temperature resistance, and the joint is not easy to harden after bonding, and is not easy to change color and remain.

Description

technical field [0001] An adhesive used for electronic grade glass fiber yarn and a preparation method thereof belong to the technical field of electronic grade glass fiber. Background technique [0002] Electronic grade glass fiber is an important basic source material for electronic information, aerospace and other industries. It appears in almost every electronic component and is distributed in various fields of national economy and national defense industry. Electronic glass fiber cloth woven from electronic grade glass fiber, referred to as electronic cloth, is an indispensable basic material for the copper clad laminate and printed circuit board industry, and its performance largely determines the electrical properties of the copper clad laminate and printed circuit board. Performance, mechanical properties, dimensional stability and other important properties. [0003] The existing electronic-grade glass fiber yarn is prone to fluff and end breakage during the proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J101/28C09J11/06
CPCC08L2201/08C08L2205/02C09J11/06C09J101/286C08L1/28C08K5/12
Inventor 王登宝李宝明崔淑利郑木松鹿贵滨王玉东
Owner 山东兴国大成电子材料有限公司
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