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Preparation method for modified inorganic fiber cloth

A technology of inorganic fiber modification, applied in the field of preparation of modified inorganic fiber cloth, can solve the problems of limited temperature resistance and easy aging of silane coupling agent, achieve high temperature resistance, strengthen mechanical bonding, and simple configuration easy effect

Active Publication Date: 2014-11-26
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the silane coupling agent has limited temperature resistance and is prone to aging at high temperatures greater than 200°C

Method used

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  • Preparation method for modified inorganic fiber cloth
  • Preparation method for modified inorganic fiber cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare surface treatment agent:

[0027] components

Mass percentage, %

PTFE

25

Lanthanum chloride

0.3

Finishing agent Ori Fluoro 7713

2

Dispersion Stabilizer FSN-100

1

Penetrant JFC

1

water

margin

[0028] Mix the above components evenly to obtain the surface treatment agent.

[0029] Use ultrasonic cleaning in 3wt% amylase solution at 90°C for 5 minutes to remove the wetting agent on the glass fiber cloth, then soak the glass fiber cloth in the surface treatment agent for 1 minute, and finally dry it at 180°C for 2 minutes. Bake at 260°C for 10 minutes to obtain.

Embodiment 2

[0031] Prepare surface treatment agent:

[0032] components

Mass percentage, %

PTFE

5

Cerium nitrate

4

Finishing agent Ori Fluoro OC

1

Dispersion stabilizer FSO-100

0.5

Penetrant JFC-1

0.5

water

margin

[0033] Mix the above components evenly to obtain the surface treatment agent.

[0034] Remove the sizing agent on the glass fiber cloth by sintering at 250°C for 24h, then soak the glass fiber cloth in the surface treatment agent for 0.5min, dry at 200°C for 4min, and bake at 280°C for 8min , that is.

Embodiment 3

[0036] Prepare surface treatment agent:

[0037] components

Mass percentage, %

PTFE

40

Lanthanum chloride

0.05

Cerium nitrate

0.05

Olivier SLA-NEW

4

Dispersion stabilizer FSO-100

0.01

Penetrant JFC-2

4

water

margin

[0038] Mix the above components evenly to obtain the surface treatment agent.

[0039] Use the hot cleaning method at 400°C for 45s to remove the sizing agent on the basalt fiber cloth, then soak the basalt fiber cloth in the surface treatment agent for 3 minutes, dry at 220°C for 5 minutes, and bake at 260°C for 15 minutes. Instantly.

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Abstract

The invention relates to a preparation method for modified inorganic fiber cloth. The preparation method comprises the steps as follows: firstly, removing a soaking agent on inorganic fiber cloth; secondly, soaking the inorganic fiber cloth in a surface treating agent; and lastly, drying and baking to obtain the modified inorganic fiber cloth, wherein the surface treating agent is prepared by uniformly mixing the following components: 5-40 wt% of PTFE (polytetrafluoroethylene), 0.05-5 wt% of rare earth surface modifier, 0.5-5 wt% of fluorine-containing three-proofing finishing agent, 0.01-2 wt% of dispersion stabilizer, 0.1-5 wt% of penetrating agent and the balance of water. According to the preparation method, the bonding performance of the PTFE and the inorganic fiber surface is improved by the rare earth surface modification technology, and the prepared inorganic fiber cloth has the advantages of more excellent surface coating state, better corrosion resistance, mechanical property, fold resistance and wear resistance, and longer service life.

Description

technical field [0001] The invention relates to a preparation method of a modified inorganic fiber cloth, which belongs to the technical field of fine chemicals. Background technique [0002] Coupling agents can be divided into four categories according to their chemical structure and composition: organic chromium complexes, silanes, titanates and aluminate compounds. The domestic inorganic fiber industry widely uses silane coupling agents as surface modifiers for the interface properties between inorganic fibers and polytetrafluoroethylene (PTFE). Due to the inertness of PTFE, the modification effect of silane coupling agents is limited, resulting in inorganic fibers The coating state of the surface is not good, and the temperature resistance, corrosion resistance, mechanical properties and torture resistance of the inorganic fiber cloth are limited, which also restricts the service life of the inorganic fiber cloth. [0003] For the silane coupling agent, first, the silan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/256D06M11/65D06M11/17D06M11/45C08L27/18C08K9/04C08K9/02C08K7/14C08K7/10B01D39/08
Inventor 周诚费传军项朝卫范凌云赵东波黄箭玲邓志刚杨溪宋尚军白耀宗
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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