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Wet-process chopped strand sizing agent and preparation method thereof

A technology of chopped strands and sizing, applied in the chemical industry, can solve the problem of "tow" being unable to disperse, and achieve the effects of low cost, increased sales, and good dispersibility

Inactive Publication Date: 2019-06-21
陕西华特新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem in the prior art that the chopped strands cannot be dispersed on the surface of the wet felt, the present invention proposes a wet chopped strand sizing agent and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This example is a wet-laid chopped strand sizing. The wet chopped strand sizing agent includes 0.2-0.4% acetic acid, 0.5-0.6% coupling agent, 0.02-0.10% cellulose ether, 0.01-0.08% dispersant, 0.01-0.03% lubricant and 0.002-0.008% preservative, and the balance is deionized water; the stated percentages are all percentages by weight.

[0033] In this embodiment, acetic acid is 0.3%, coupling agent is 0.55%, cellulose ether is 0.03%, dispersant is 0.05%, lubricant is 0.01%, preservative is 0.003%, and the balance is deionized water.

[0034] Divide the deionized water into two parts, the first part is 50.6% of the total amount of deionized water, and the second part is 49.4% of the total amount of deionized water.

[0035] The coupling agent is KH-560, the cellulose ether is hydroxypropyl methylcellulose, the dispersant is aliphatic carboxylic acid DSC-1, the lubricant is fatty acid amide CQ-304, and the preservative is formaldehyde with a content of 40% formalin, said ...

Embodiment 2

[0046] This embodiment is a wet chopped strand sizing agent; wherein: 0.3% acetic acid, 0.55% coupling agent, 0.5% cellulose ether, 0.07% dispersant, 0.03% lubricant, and 0.03% preservative 0.005%, and the balance is deionized water; the percentages mentioned are all mass percentages.

[0047] Divide the deionized water into two parts, the first part is 50.7% of the total amount of deionized water, and the second part is 49.3% of the total amount of deionized water.

[0048] The coupling agent is KH-570, the cellulose ether is hydroxypropyl methylcellulose, the dispersant is aliphatic carboxylic acid DSC-1, the lubricant is fatty acid amide CQ-304, and the preservative is formaldehyde with a content of 40% formalin, said percentage is a mass percentage.

[0049] The amount of the wet chopped strand sizing agent prepared in this embodiment is one ton. The specific process is:

[0050] Step 1, prepare hydroxypropyl methylcellulose solution.

[0051] The concentration of the hy...

Embodiment 3

[0059] This embodiment is a wet chopped strand sizing agent; wherein: 0.3% acetic acid, 0.56% coupling agent, 0.6% cellulose ether, 0.08% dispersant, 0.025% lubricant, and 0.025% preservative 0.008%, and the balance is deionized water; said percentages are mass percentages.

[0060] Divide the deionized water into two parts, the first part is 50.8% of the total amount of deionized water, and the second part is 49.2% of the total amount of deionized water.

[0061] The coupling agent is KH-570, the cellulose ether is hydroxypropyl methylcellulose, the dispersant is aliphatic carboxylic acid DSC-1, the lubricant is fatty acid amide CQ-304, and the preservative is formaldehyde with a content of 40% formalin, said percentage is a mass percentage.

[0062] The amount of the wet chopped strand sizing agent prepared in this embodiment is one ton. The specific process is:

[0063] Step 1, prepare hydroxypropyl methylcellulose solution.

[0064] The concentration of the hydroxyprop...

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Abstract

The invention relates to a wet-process chopped strand sizing agent and a preparation method thereof. The wet-process chopped strand sizing agent comprises acetic acid, a coupling agent, cellulose ether, a dispersant, a lubricant, a preservative, and the balance of deionized water. According to the invention, a dispersing function of the chopped strand is considered from a drawing process, and a component with dispersing property is added into the sizing agent, and is matched with a chemical raw material used when a wet-process felt disperses the chopped strand, so that the drawing has suitablelubricating and protecting functions, and the chopped strand has better dispersing performance, thus fundamentally solving the problem that a large number of 'strands' cannot be dispersed, ensuring astable state of a drawing operation, and reducing strands on a felt surface from about 3 to 0.1 or even no strand per square meter in a felting process; in addition, the cost is low, the production of chopped strand felts is expanded for enterprises, and a positive role in promoting profits is played.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a sizing agent coated on the fiber surface during the drawing process of glass fiber raw filaments. Background technique [0002] The production of glass fiber is inseparable from the sizing agent. The main function is to provide lubrication and protection to the raw silk and reduce the wear between the single filaments during the drawing process. The first type is a sizing agent suitable for textile; the second type is an enhanced sizing The third type is thixotropic sizing, which mainly reduces the water content in the raw fiber tube and the energy required to dry them and reduces the sizing component in the raw fiber. Migration on the barrel. The performance of the existing chopped strand sizing is mainly suitable for glass fiber drawing type. It is used for wet chopped strands. During the felting process after wet chopped strands, a large number of white "tows" appear on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/465
Inventor 睢彻车王扶春王克谦
Owner 陕西华特新材料股份有限公司
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