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Preparation method of clean muddy filler

A mud-like filler and clean technology, applied in fiber types, textiles and papermaking, fiber treatment, etc., can solve unsatisfactory problems, achieve good fluidity and self-lubrication, good sealing effect, and clean color

Inactive Publication Date: 2021-04-09
浙江国泰萧星密封材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing mud-like fillers are generally added with graphite, relying on the physical properties of worm graphite to achieve sealing, so they cannot meet the requirements of corresponding laws and regulations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment is a preparation method of a clean muddy filler, which includes the following steps:

[0026] A, get an appropriate amount of man-made fibers to chop;

[0027] B, the man-made fiber of completing step A is mixed with the concentrate; the concentrate is a polytetrafluoroethylene emulsion; the mixing method is: by weight, the man-made fiber accounts for 10% to 15%, and the remainder is the concentrate, and The fiber is put into the dipping tank, mixed with the concentrate and stirred evenly;

[0028] C, drying the man-made fibers processed through step B;

[0029] D. Mix and stir the dried fiber with grease and inorganic filler;

[0030] E, put the material processed in step D into a high-speed rotary mixer and whip into fluffy and dispersed fiber strips;

[0031] F. Packaging and storage.

[0032] In this example, the man-made fibers selected are polytetrafluoroethylene long fibers, cut to 6mm with a cutting machine, and pre-mixed with 50% concentrati...

Embodiment 2

[0034] This embodiment is a preparation method of a clean muddy filler, which includes the following steps:

[0035] A, get an appropriate amount of man-made fibers to chop;

[0036] B, the man-made fiber of completing step A is mixed with the concentrate; the concentrate is a polytetrafluoroethylene emulsion; the mixing method is: by weight, the man-made fiber accounts for 10% to 15%, and the remainder is the concentrate, and The fiber is put into the dipping tank, mixed with the concentrate and stirred evenly;

[0037] C, drying the man-made fibers processed through step B;

[0038] D. Mix and stir the dried fiber with grease and inorganic filler;

[0039] E, put the material processed in step D into a high-speed rotary mixer and whip into fluffy and dispersed fiber strips;

[0040] F. Packaging and storage.

[0041]In this example, the man-made fibers selected are polytetrafluoroethylene long fibers, which are cut to 10mm with a cutting machine, and pre-mixed with 50% c...

Embodiment 3

[0043] This embodiment is a preparation method of a clean muddy filler, which includes the following steps:

[0044] A, get an appropriate amount of man-made fibers to chop;

[0045] B, the man-made fiber of completing step A is mixed with the concentrate; the concentrate is a polytetrafluoroethylene emulsion; the mixing method is: by weight, the man-made fiber accounts for 10% to 15%, and the remainder is the concentrate, and The fiber is put into the dipping tank, mixed with the concentrate and stirred evenly;

[0046] C, drying the man-made fibers processed through step B;

[0047] D. Mix and stir the dried fiber with grease and inorganic filler;

[0048] E, put the material processed in step D into a high-speed rotary mixer and whip into fluffy and dispersed fiber strips;

[0049] F. Packaging and storage.

[0050] In this example, the man-made fibers selected are polyacrylonitrile long fibers, which are cut to 8mm with a cutting machine, and pre-mixed with the polytet...

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PUM

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Abstract

The invention discloses a preparation method of a clean muddy filler. The preparation method comprises the following steps: A, taking a proper amount of artificial fibers and chopping; b, mixing the artificial fibers obtained in the step A with a concentrated solution; wherein the concentrated solution is polytetrafluoroethylene emulsion with the concentration of 50%; wherein the mixing mode is as follows: in parts by weight, the artificial fibers account for 10%-15%, the rest is the concentrated solution, and the fibers are put into a dipping barrel and are uniformly mixed and stirred with the concentrated solution; c, drying the artificial fibers treated in the step B; d, mixing and stirring the dried fibers, lubricating grease and inorganic filler; f, packaging and warehousing. The preparation method has the beneficial effects that the materials are all qualified safe materials, and the prepared muddy filler is clean in color and luster, good in flowability and self-lubricating property and good in sealing effect.

Description

technical field [0001] The invention relates to the technical field of sealing materials, in particular to a preparation method of clean mud filler. Background technique [0002] Mud packing is a new type of dynamic sealing element. The "Proceedings of the Twelfth International Friction and Sealing Material Technology Exchange and Product Exhibition" published in May 2010 disclosed the author Wang Shijiang's "New Dynamic Sealing Element-Mud-like Packing", which introduced the mud-like packing: Mud filler is a mud-like substance mixed with high-grade synthetic fibers and various oils, fats and viscose. It is a special mixture of fibers and viscose. It needs to be injected into the stuffing box of the equipment through a high-pressure gun when used. The basic sealing principle is: during the use of the mud-like filler, the shear force generated by the movement between the fibers in the middle and the shaft makes the fibers gradually wrap around the shaft as the shaft rotates,...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L33/20C08L91/00C08K3/30C08K3/26D06M15/256D06M101/22D06M101/28
CPCC08L27/18C08L33/20D06M15/256D06M2101/22D06M2101/28C08K2003/3045C08K2003/265
Inventor 孙利杰
Owner 浙江国泰萧星密封材料股份有限公司