Enhancement soakage agent for thin glass fiber bulked yarn

Abstract

The invention discloses a bulky spinning wetting agent, which comprises the following parts: 2.0-3.5% soluble film former, 0.64-1.05% lubricant, 0.2-0.5% organic silane coupling agent, 0.1-0.22% pH value adjusting agent. The agent can be allocated and used under normal temperature.

Description

technical field [0001] The invention discloses a reinforced sizing agent for bulked yarns of fine glass fibers, which belongs to the field of glass fiber sizing agents, and in particular relates to a sizing agent for bulked yarns. Background technique [0002] Glass fiber bulked yarn is a kind of soft and fluffy glass fiber yarn which is expanded (deformed) by continuous glass fiber yarn under the action of high-pressure airflow. It not only retains the general properties of ordinary continuous glass fiber, but also has the bulkiness of short fiber. It is a new type of glass fiber product with temperature resistance, corrosion resistance, low thermal conductivity, low bulk density, weavable, low filtration resistance and soft hand feeling. It can be used as a variety of packaging materials, wall decoration materials, as a reinforcing material for friction products instead of asbestos, and can also be used as high-temperature filter materials, fiber-reinforced plastic materia...

AI Technical Summary

Problems solved by technology

At present, when using these two types of sizing agents, there are still the following problems: First, their preparation process is complicated and requires high-temperature cooking, and the storage container and delivery pipeline also need to be continuously kept warm throughout the entire process; the composition of the sizing agent itself affects the bulked yarn. Combined with the interface of the base material of the product, when it is used to reinforce the material, heat treatment is required, resulting in waste of energy, environmental pollution and decrease in the strength of the composite material; neither of the two sizing systems contains a coupling agent, so The interface bonding effect between the bulked yarn and the product substrate is poor

[0005] Some manufacturers at home and abroad also try to use the existing reinforced sizing agent to produce glass fiber bulked yarn sizing agent, but the application of this sizing agent is limited to the pultrusion process of relatively thicker diameter fibers (fiber diameter above 14 microns). In the production of alkali-free glass fiber bulked yarn, when it is used in the production of fine-diameter glass fiber bulked yarn below 11 microns, its friction resistance and flex resistance cannot meet the requirements of its post-processing technology, which will affect its products. Performance, so far, there is still no special enhanced sizing for the production of glass fiber expanded yarn below 11 microns

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