Unlock instant, AI-driven research and patent intelligence for your innovation.

Vibrationally compressed glass fiber and/or other material fiber mats and methods for making the same

A technology of glass fiber and fiber mat, which is applied in the field of vibration-compressed fiber mat, which can solve the problems of destroying fiber characteristics, more expensive wet-laid web-forming process, and insufficient density of fiber mat.

Inactive Publication Date: 2006-04-12
KVG TECH INC
View PDF28 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, needling alone to achieve the desired density in a dry-laid fiber mat is not sufficient and such processing increases the pores in the mat and requires additional equipment / steps for processing the mat product
[0008] While wet-laid fiber mats can meet such density requirements, the wet-laid process is more expensive and requires an additional step that often destroys fiber properties

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vibrationally compressed glass fiber and/or other material fiber mats and methods for making the same
  • Vibrationally compressed glass fiber and/or other material fiber mats and methods for making the same
  • Vibrationally compressed glass fiber and/or other material fiber mats and methods for making the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0082] Role of orbital diameter and vibration rate as a function of time on fiber layer compression

[0083] This example describes a device that can be used for vibratory compression of fiber mats such as glass or polymeric mats, further demonstrating that prefabricated fiberglass mats can be rapidly compressed (eg, in less than about 30 seconds) using two different vibratory compression regimes to about 80% of its original thickness. That is, the thickness of the felt increases so that the total thickness after vibratory compression is about 80% of the thickness before compression.

[0084] A device comprising two opposing 10.2 x 15.2 cm horizontal platens was used in this example. The first platen is mounted on a bracket that prevents it from vertically moving downward, and the second platen is disposed above it and is vertically aligned with the first platen. The second platen is free to move vertically downward in contact with the first platen. A 10.2 x 15.2 cm piece o...

example 2

[0090] Comparison of Vibration Compression Conditions

[0091]The apparatus described in Example 1 was used to compress "dry" (such as in Example 1) or "wet" after the conditions were met that glass fibers were approximately 25% by weight of the mat and water was 75%. Fiberglass mat. Conditioning of the felt involves spraying water on the surface of the felt until the proper moisture content is achieved. In some cases the contact material on the platen is coarse sandpaper, in some cases fine sandpaper. In some cases, the force applied to the second platen was 9.07kg; in some cases, the force was 27.2kg. In all cases, the felt was compressed by vibration and force (9.07 kg and 27.2 kg) for 20 seconds.

[0092] sample

[0093] When (1) the "down" force on the second platen is 9.06 kg together with the orbital running vibration; (2) when the "down" force on the second platen is 27.3 kg together with the orbital running vibration kg; (3) When the felt is dry; (4) Whe...

example 3

[0100] Vibratory Compression Device Including Stops Between Platens

[0101] A device similar to that described in Example 1 was modified with the addition of a stop extending 3 mm below the bottom surface of the second platen. This modified apparatus was used to compress dry or wet fiberglass mats as described in Examples 1 and 2 having a moisture content of about 75% conditioned. When the stops hit the first platen, they prevent further movement of the second platen towards the first platen so that at the end of each compression the two platens are kept at least 3mm apart. In some cases, the sandpaper on the platen is coarse, and in other cases, fine sandpaper.

[0102]

[0103] From the data in the above table at a pressure of 10 kPa, calculate the average value of the thickness of the felt in mm. , (1) when the felt is dry; (2) when the felt is wet; (3) when coarse sandpaper is used on the platen; (4) when fine sandpaper is used on the platen; (5) when the trac...

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

Methods for enhancing one or more physical properties of wet-laid or dry-laid fiber mats, such as a glass fiber, cellulosic or polymeric fiber mats are disclosed and fiber mats made according to such processes. Certain embodiments of the methods involve vibrational compression of a wet-laid or dry-laid fiber mat. In some embodiments the methods produce a fiber mat having increased apparent density and / or tensile strength as compared to a mat that has not been vibrationally compressed. Exemplar fiber mats suitable for use in the disclosed methods include, for example, glass, polyolefin, ethylene terephthalate, or cellulose fibers, or mixtures thereof. Glass, cellulosic or polymeric fiber mats that are structurally improved by the disclosed methods are also disclosed.

Description

[0001] related applications [0002] This application claims priority to US application US 10 / 960,628, filed October 6, 2004, the entire contents of which are incorporated herein. technical field [0003] The present invention relates to a vibration-compressed fiber mat of glass fibers and / or fibers of other materials, and a method of making the same. Background technique [0004] Fiberglass (and / or other fibrous materials, such as polymeric fibers or cellulose fibers) mats have a variety of uses, for example, for liquid or air filtration, battery separators, thermal insulation, low temperature insulation, and electrical insulation. Fiberglass mats can be produced from glass fibers (or fiberglass bundles). Making glass fiber bundles from molten glass generally involves drawing the attenuated fibers from orifices in a device operably connected to a glass melting furnace. The extruded glass fibers are made into desired diameters and lengths (often by mechanical means) and co...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/46D04H17/00D04H1/4218B29C43/22D04H1/4226
CPCB29C43/228D04H13/008D04H1/4226D04H1/732Y10T442/697Y10T442/60Y10T442/698Y10T442/681Y10T442/696Y10T442/68B06B1/02B29C43/22
Inventor 拉里·K·库恩乔治·兹古里斯帕特里克·斯沃博达
Owner KVG TECH INC