Processing technology of low-static glass fiber chopped strands with good bundling property

A technology of glass fiber and processing technology, which is applied in the field of processing technology of finely bundled and low-static glass fiber chopped strands. It can solve the problems of low bundleability and difficult dispersion of finishing agents, and achieve the effect of enhancing dispersion

Inactive Publication Date: 2022-08-02
五河县维佳复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) Use sizing agent and silane coupling agent to pretreat the glass fiber precursors, then cut them into short filaments with a cutting device, spray the cut short filaments with a finishing agent, and then carry out boring and awakening in sequence treatment, and finally sealed and packaged to obtain the good bundled low-static glass fiber chopped strands, which solves the problem of static electricity in the existing glass fiber chopped strands during the production process and subsequent processing and use, and the finishing agent is not stable during antistatic treatment. easily dispersed problems;

Method used

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  • Processing technology of low-static glass fiber chopped strands with good bundling property
  • Processing technology of low-static glass fiber chopped strands with good bundling property
  • Processing technology of low-static glass fiber chopped strands with good bundling property

Examples

Experimental program
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Effect test

Embodiment 1

[0052] This embodiment is the processing technology of the good bundled low-static glass fiber chopped strands, and the good bundled low-static glass fiber chopped strands are prepared by the following steps:

[0053] S1: Use sizing agent and silane coupling agent to pretreat glass fiber strands, and then use a cutting device to cut into short filaments;

[0054] S2: Use finishing agent to spray the cut filaments;

[0055] S3: performing stuffing and wake-up treatments in sequence, and finally sealing and packaging to obtain the good bundled low-static glass fiber chopped strands;

[0056] The finishing agent includes the following components in parts by weight:

[0057] 0.5 part of coupling agent, 2 parts of emulsifier, 2 parts of antistatic agent, 0.1 part of softener, 95.4 parts of non-ionic water;

[0058] The emulsifier is prepared by the following steps:

[0059] S11: adopt a vacuum distillation device, 4-hexylphenol is distilled, and the colorless transparent fractio...

Embodiment 2

[0072] The difference between this embodiment and Embodiment 1 is:

[0073] The finishing agent includes the following components in parts by weight:

[0074] 0.4 part of coupling agent, 1 part of emulsifier, 1 part of antistatic agent, 0.6 part of softener, and 97 parts of non-ionic water;

[0075] The emulsifier is prepared by the following steps:

[0076] S11: adopt a vacuum distillation device, 4-hexylphenol is distilled, and the colorless transparent fraction distilled is collected for subsequent use;

[0077] S12: put 20g of Na 2 SO 3 and 13g of NaHSO 3 Dissolved in distilled water and placed in a reaction four-necked flask equipped with an electric stirring device, a thermometer and a condensing device, at a temperature of 40 ° C, add 9 g of epichlorohydrin dropwise, and control the rate of addition to be 2 drops / s. After the addition, it was cooled with an ice-water bath and continued to react for 4 h, filtered under reduced pressure, and dried in vacuo to obtain ...

Embodiment 3

[0089] The difference between this embodiment and Embodiment 1 is:

[0090]The finishing agent includes the following components in parts by weight:

[0091] 0.2 part of coupling agent, 1.5 part of emulsifier, 1 part of antistatic agent, 0.4 part of softener, 96.9 parts of non-ionic water;

[0092] The emulsifier is prepared by the following steps:

[0093] S11: adopt a vacuum distillation device, 4-hexylphenol is distilled, and the colorless transparent fraction distilled is collected for subsequent use;

[0094] S12: put 20g of Na 2 SO 3 and 13g of NaHSO 3 Dissolved in distilled water and placed in a reaction four-necked flask equipped with an electric stirring device, a thermometer and a condensing device, at a temperature of 30 ° C, add 9 g of epichlorohydrin dropwise, and control the rate of addition to be 1 drop / s. After the addition, it was cooled with an ice-water bath and continued to react for 4 h, filtered under reduced pressure, and dried in vacuo to obtain In...

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Abstract

The invention discloses a processing technology of good-bundling low-static glass fiber chopped strands, and relates to the field of glass fiber chopped strands, glass fiber precursors are pretreated by using an impregnating compound and a silane coupling agent, then the glass fiber precursors are cut into short strands by using a cutting device, and the cut short strands are sprayed by using a finishing agent to obtain the good-bundling low-static glass fiber chopped strands. The low-static glass fiber chopped strand with the good bundling property is obtained by sequentially carrying out material covering and material waking treatment, and the problems that in the production process and the subsequent processing and using process of existing glass fiber chopped strands, static electricity exists, and a finishing agent is not prone to being dispersed in the antistatic treatment process are solved. The impregnating compound is used for pretreating the glass fiber chopped strands, and then the finishing agent is used for performing antistatic treatment on the glass fiber chopped strands, so that the finishing agent is uniformly dispersed, the dispersity among the glass fiber chopped strands is enhanced, the intermolecular conductivity is increased, electrons can be effectively dispersed, and the antistatic purpose of the glass fiber chopped strands is achieved.

Description

technical field [0001] The invention relates to the field of glass fiber chopped strands, in particular to a processing technology of glass fiber chopped strands with good bundled properties and low static electricity. Background technique [0002] Glass fiber chopped strands, also known as chopped glass fibers, are raw strands drawn with a special sizing agent and are chopped online by a wet method. They are mainly used to strengthen thermoplastics. Because of their good cost performance, they are especially suitable for resins. It is used as a reinforcing material for the shell of automobiles, trains and ships, and is used for high temperature resistant needle-punched felt, automobile sound-absorbing sheet, hot-rolled steel, etc. Its products are widely used in automobiles, construction, aviation daily necessities and other fields. Typical products There are auto parts, electronic and electrical products, mechanical products, etc., and can also be used to strengthen the in...

Claims

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Application Information

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IPC IPC(8): C03C25/14C03C25/25C03B37/16
CPCC03C25/14C03C25/25C03B37/16Y02W30/91
Inventor 范兴仕张杨代习文陈继银
Owner 五河县维佳复合材料有限公司
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