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Temperature-resistant fiber impregnating compound and preparation method thereof as well as modified basalt fiber and preparation method thereof

A technology of sizing agent and fiber, which is applied in the field of temperature-resistant fiber sizing agent and its preparation, modified basalt fiber and its preparation, and can solve the problems of embrittlement of protective materials, easy wear and tear of fabric fibers, carbonization, etc.

Pending Publication Date: 2022-07-12
江苏天龙玄武岩连续纤维股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the basalt fiber produced by traditional textile sizing and enhanced textile sizing has poor flexibility, resulting in low molding density and number of pressing passes, high density and porosity of the fiber mat, which will reduce the insulation of the basalt fiber mat. Thermal properties, and the mechanical properties of fiber mats are greatly reduced due to the brittle fracture of basalt fibers
In addition, the traditional sizing agent is also poor in temperature resistance. Under high temperature conditions, it is easy to decompose, carbonize and peel off, resulting in the loss of the protective layer on the fiber surface, resulting in easy wear and tear between the fabric fibers, and serious embrittlement of the protective material.

Method used

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  • Temperature-resistant fiber impregnating compound and preparation method thereof as well as modified basalt fiber and preparation method thereof

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preparation example Construction

[0035] The present invention also provides the preparation method of the temperature-resistant fiber sizing agent described in the above technical scheme, comprising the following steps:

[0036] (1) mixing silicone resin emulsion, silicone oil and part of diluent to obtain film-forming agent emulsion;

[0037] (2) mixing the antistatic agent with part of the diluent to obtain an antistatic solution;

[0038] (3) mixing the film-forming agent emulsion obtained in the step (1) and the antistatic solution obtained in the step (2) with the temperature-resistant filler and the remaining diluent, and then adding a pH adjuster to obtain a temperature-resistant fiber sizing agent ;

[0039] The steps (1) and (2) are in no particular order.

[0040] In the present invention, the silicone resin emulsion, silicone oil and part of the diluent are mixed to obtain the film-forming agent emulsion.

[0041] In the present invention, the parts by weight of the part of the diluent mixed wit...

Embodiment 1

[0061] A temperature-resistant fiber sizing agent provided in this embodiment is composed of the following components in parts by weight: 25 parts of silicone resin emulsion (methyl phenyl silicone resin emulsion, selected from MP50E), 5 parts of silicone oil (tetramethyl benzene) tetravinylcyclotetrasiloxane), 2 parts of pH adjuster (mixed solution of hydrochloric acid and ammonium chloride), 2 parts of temperature resistant filler (nano-SiO 2 and nano-CaO, the mass ratio is 1:1), 1 part of antistatic agent (NH 4 Cl) and 65 parts of diluent (ethyl acetate).

[0062] The preparation method of the above-mentioned temperature-resistant fiber sizing agent, consists of the following steps:

[0063] (1) the silicone resin emulsion, silicone oil and part of the diluent are mixed to obtain the film-forming agent emulsion; wherein, the part by weight of the diluent is 25 parts, and the operation of mixing is stirring, and the temperature of mixing is 50 ° C, the time of mixing is 30...

Embodiment 2

[0070] A temperature-resistant fiber sizing agent provided in this embodiment is composed of the following components by weight: 20 parts of silicone resin emulsion (acrylic-modified methyl phenyl silicone resin, selected from SH-9606), silicone oil 5 parts (methyl vinyl cyclosiloxane), 1 part of pH adjuster (mixed solution of hydrochloric acid and ammonium chloride), 1.5 parts of temperature resistant filler (nano-SiO 2 ), 1 part of antistatic agent (NH 4 Cl) and diluent 71.5 parts (ethyl acetate).

[0071] The preparation method of the above-mentioned temperature-resistant fiber sizing agent, consists of the following steps:

[0072] (1) mixing silicone resin emulsion, silicone oil and part of diluent to obtain film-forming agent emulsion; wherein, part of diluent by weight is 20 parts, and the operation of mixing is stirring, and the temperature of mixing is 50 ° C, the time of mixing is 30min;

[0073] (2) antistatic agent and part of diluent are mixed to obtain antista...

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Abstract

The invention provides a temperature-resistant fiber impregnating compound and a preparation method thereof as well as a modified basalt fiber and a preparation method thereof, and belongs to the technical field of functional materials. The temperature-resistant fiber impregnating compound provided by the invention comprises the following components in parts by weight: 5-30 parts of an organic silicon resin emulsion, 5-10 parts of silicone oil, 1-7 parts of a pH regulator, 0.5-2 parts of a temperature-resistant filler, 0.1-1 part of an antistatic agent and 60-90 parts of a diluent. Experimental results show that the diameter of the modified basalt fiber prepared by adopting the temperature-resistant fiber impregnating compound provided by the invention is 9 microns, the natural minimum ring diameter of a single fiber obtained by testing is 4.85-5.26 mm, and the tensile strength is 0.32-0.35 N / tex; the high-temperature weight loss (500 DEG C, 3 hours) rate of the temperature-resistant fiber impregnating compound is 21.25-23.88%.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a temperature-resistant fiber sizing agent and a preparation method thereof, as well as modified basalt fibers and a preparation method thereof. Background technique [0002] Basalt fiber is a new type of inorganic fiber, which has a series of advantages such as high strength, high temperature resistance, corrosion resistance, etc. However, compared with traditional organic fibers, inorganic materials have the disadvantages of high brittleness and easy damage during production and use. Therefore, basalt fiber usually needs to be implemented by sizing coating technology to improve the basalt fiber bundle, wear resistance, temperature resistance and soften the fiber. The sizing formulation technology has always been one of the core technologies of the basalt fiber manufacturing industry, and the sizing formulation directly affects the performance of the final product. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/16C03C25/47C03C25/42C03C25/40
CPCC03C25/16C03C25/47C03C25/42C03C25/40
Inventor 薛晓薇邓志华刘细军张成勇邬惠娟王帅陈太福
Owner 江苏天龙玄武岩连续纤维股份有限公司