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Waterproof needled felt and preparation method thereof

A needle-punched felt and performance technology, applied in the field of needle-punched felt, can solve problems such as poor thermal insulation performance, achieve good thermal insulation effect, improve tensile strength and softness, and improve filtration efficiency.

Inactive Publication Date: 2019-03-19
江苏三元环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the direct multi-layer glass fiber composite layer is made by carding, etc. The disadvantage is that although the needle felt has flame retardancy, its thermal insulation performance is poor, because the water absorption rate of the aluminum silicate needle felt is as high as 85%. Above, easy to disperse after contact with water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of needle-punched felt with waterproof performance of the present embodiment comprises the following raw materials in parts by weight:

[0026] 5 parts of modified polyester staple fiber, 50 parts of glass fiber, 2 parts of dyed modified polyester staple fiber, 3 parts of surface treatment agent, 1.2 parts of waterproofing agent, 5 parts of plantain fiber, and 3 parts of PTFE fiber.

[0027] The surface treatment agent is prepared according to the mass ratio of the following raw materials: 3 parts of polytetrachlorethylene emulsion, 2 parts of polyacrylate emulsion, 0.5 part of coupling agent, 0.1 part of antistatic agent, and the balance is deionized water.

[0028] The waterproofing agent is composed of 0.5 part of silicone oil emulsion, 1 part of hydrogen-containing silicone oil emulsion, and 1 part of phenyltrimethoxysilane.

[0029] The plantain fiber has a length of 10-20cm and a fineness of 1.5D-4.0D.

[0030] A method for preparing a needle-punched felt ...

Embodiment 2

[0038] In this embodiment, a needle-punched felt with waterproof performance includes the following raw materials in parts by weight:

[0039] 15 parts of modified polyester staple fiber, 55 parts of glass fiber, 7 parts of dyed modified polyester staple fiber, 7 parts of surface treatment agent, 3.5 parts of waterproofing agent, 10 parts of plantain fiber, and 5 parts of PTFE fiber.

[0040] The surface treatment agent is formulated according to the mass ratio of the following raw materials: 3 to 5 parts of polytetrachlorethylene emulsion, 2 to 4 parts of polyacrylate emulsion, 0.5 to 1.5 parts of coupling agent, and 0.1 to 0.3 parts of antistatic agent , and the balance is deionized water.

[0041] The waterproofing agent consists of 0.5-1.4 parts of silicone oil emulsion, 1-2.5 parts of hydrogen-containing silicone oil emulsion, and 1-2.4 parts of phenyltrimethoxysilane.

[0042] The plantain fiber has a length of 10-20cm and a fineness of 1.5D-4.0D.

[0043] A method for...

Embodiment 3

[0051] A kind of needle-punched felt with waterproof performance of the present embodiment comprises the following raw materials in parts by weight:

[0052] 7 parts of modified polyester staple fiber, 52 parts of glass fiber, 3 parts of dyed modified polyester staple fiber, 4 parts of surface treatment agent, 2.5 parts of water repellent, 7 parts of plantain fiber, 3.5 parts of PTFE fiber.

[0053] The surface treatment agent is formulated according to the mass ratio of the following raw materials: 3 to 5 parts of polytetrachlorethylene emulsion, 2 to 4 parts of polyacrylate emulsion, 0.5 to 1.5 parts of coupling agent, and 0.1 to 0.3 parts of antistatic agent , and the balance is deionized water.

[0054] The waterproofing agent consists of 0.5-1.4 parts of silicone oil emulsion, 1-2.5 parts of hydrogen-containing silicone oil emulsion, and 1-2.4 parts of phenyltrimethoxysilane.

[0055]The plantain fiber has a length of 10-20cm and a fineness of 1.5D-4.0D.

[0056] A meth...

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Abstract

The invention relates to the technical field of needled felts, particularly to a waterproof needled felt and a preparation method thereof. The waterproof needled felt is prepared from raw materials of, by weight part, 5-15 parts of modified polyester staple fiber, 50-55 parts of glass fiber, 2-7 parts of dyed modified polyester staple fiber, 3-7 parts of surfactant, 1.2-3.5 parts of waterproof agent, 5-10 parts of abaca fiber and 3-5 parts of PTFE (polytetrafluoroethylene) fiber. Compared with the prior art, the waterproof needled felt has the advantages of being leakage-proof, indiffusible and good in heat insulating effects and can avoid water adhesion but form waterdrops on the surface and improve the tensile strength and the service life; filtered powder can be cleared from a membranesurface of the waterproof needled felt, so that the waterproof needled felt can reduce the dust cleaning intensity during application, prolong the service life of filtering materials, reduce the operation costs, greatly improve the filtering efficiency up to higher than 99.9% and further achieve high promotional values.

Description

technical field [0001] The invention relates to the technical field of needle felt, in particular to a waterproof needle felt and a preparation method thereof. Background technique [0002] Composite glass fiber needle-punched felt is a filter sheet with superior performance. It is used to make filter bags with different performances and specifications. Boiler soot dust removal, etc. have been widely used, making outstanding contributions to the collection of powder products and environmental protection. [0003] In the prior art, the direct multi-layer glass fiber composite layer is made by carding, etc. The disadvantage is that although the needle felt has flame retardancy, its thermal insulation performance is poor, because the water absorption rate of the aluminum silicate needle felt is as high as 85%. Above, easy to disperse after contact with water. Contents of the invention [0004] The object of the present invention is to provide a waterproof needle felt and it...

Claims

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Application Information

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IPC IPC(8): B01D46/00B01D39/08D06M15/256D06M15/263D06M15/643D06M13/513D06M101/32D06M101/04D06M101/22
CPCB01D39/083B01D46/0001D06M13/513D06M15/256D06M15/263D06M15/643D06M2101/04D06M2101/22D06M2101/32
Inventor 曹苗苗
Owner 江苏三元环保科技有限公司
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