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Preparation method of direct twistless roving

A non-twisted roving, direct technology, applied in the field of direct non-twisted roving preparation, can solve problems such as poor wear resistance, and achieve the effects of less hairiness, high bending breaking strength, and tight network

Active Publication Date: 2021-07-23
SHANDONG FIBERGLASS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fiberglass is an inorganic non-metallic material with excellent performance. It has good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but it is brittle and poor in wear resistance.

Method used

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  • Preparation method of direct twistless roving
  • Preparation method of direct twistless roving
  • Preparation method of direct twistless roving

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing direct untwisted roving, comprising the following steps: weighing raw materials according to the formula of Example 1 in Table 1, putting them into a glass melting furnace, performing vitrification, melting treatment at 1300-1400°C, and then carrying out the process at a temperature of 1200-1300°C Spinning to obtain glass fibers. After cooling, apply the sizing agent, and then wind it into a direct roving by a direct roving drawing machine and dry it at 110°C; wherein: the amount of the sizing agent is 0.1% of the weight of the glass fiber; and each group of the sizing agent The dosage is shown in Example 1 in Table 2. The properties of the prepared direct roving were tested, and the results are shown in Table 3.

Embodiment 2-8

[0030] The raw materials were weighed according to the formulas of Examples 2-8 in Table 1, and the dosage of each component of the wetting agent was shown in Examples 2-8 in Table 2, and the rest of the conditions were the same as in Example 1.

[0031] In order to further illustrate the beneficial effects of the present invention, due to limited space, only Example 3 is used as an example to construct a comparative example as follows.

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PUM

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Abstract

The invention discloses a preparation method of direct twistless roving, and belongs to the technical field of inorganic non-metallic materials. The preparation method of the direct twistless roving comprises the following steps: weighing the raw materials according to the proportion, putting the raw materials into a glass melting furnace, carrying out vitrification and melting treatment, then carrying out spinning molding to obtain glass fibers, cooling the glass fibers, coating the glass fibers with an impregnating compound, winding the glass fibers into the direct twistless roving by a direct twistless roving drawing machine, and drying the direct twistless roving. The direct twistless roving which is high in breaking strength and pultrusion bar bending strength and small in hairiness amount is successfully obtained by limiting the glass fiber raw materials and limiting the components of the coating impregnating compound.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic materials, in particular to a method for preparing direct untwisted roving. Background technique [0002] Fiberglass is an inorganic non-metallic material with excellent performance. It has good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength, but it is brittle and poor in wear resistance. It is made of pyrophyllite, quartz sand, limestone, dolomite, boronite, and boronite as raw materials through high-temperature melting, wire drawing, winding, and weaving. The diameter of the single filament is several 1 micron to more than 20 microns, which is equivalent to 1 / 20-1 / 5 of a hair, and each bundle of fiber filaments is composed of hundreds or even thousands of monofilaments. Glass fibers are usually used as reinforcing materials in composite materials, electrical insulation materials, thermal insulation materials, circuit substrates and oth...

Claims

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Application Information

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IPC IPC(8): C03C13/02C03C3/095C03C25/36C03C25/323
CPCC03C13/00C03C3/095C03C25/36C03C25/323
Inventor 刘兴月崔宝山
Owner SHANDONG FIBERGLASS GRP