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Three-dimensional net structure with sound attenuation and high elasticity performance

A three-dimensional mesh, elastomer technology, applied in non-woven fabrics, textiles and papermaking, etc., can solve problems such as uncontrollable indentation hardness, and achieve the effect of enhancing adaptability

Active Publication Date: 2016-08-10
JIANGYIN HETRON ELASTOMER NEW MATERIALS TECHNOLOGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the fiber joints of the three-dimensional network structure are more, the sound of network structure compression will be quieter, but more joints indicate higher product density, and the required indentation hardness cannot be controlled

Method used

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  • Three-dimensional net structure with sound attenuation and high elasticity performance
  • Three-dimensional net structure with sound attenuation and high elasticity performance
  • Three-dimensional net structure with sound attenuation and high elasticity performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A three-dimensional network structure with sound-absorbing and high-elastic properties. The spinneret type of the structure includes hollow fibers and solid special-shaped fibers interlaced. The hole ratio of hollow fiber and solid special-shaped fiber is 56:44. The specific preparation method is that the A-1 raw material is fed into the extruder, heated to a molten state of 230°C in the extruder, and then transported to the spinneret after being metered by a metering pump. Infrared heat preservation is used between the spinneret and the water tank to avoid The thinner solid special-shaped fibers are solidified early before interlacing, and the woven fibers are compressed into a mold in warm water at 50°C to obtain a three-dimensional network structure. By controlling the traction rate, the density of the three-dimensional network structure is controlled at 55kg / m3. The compression hardness of the network structure is 255N after 40% compression, the permanent deformatio...

Embodiment 2

[0024] The specific preparation method is similar to that of Example 1. The heating temperature is set to 210°C in a molten state, and it is transported to the spinneret by a metering pump. Infrared heat insulation is used between the spinneret and the water tank to avoid early solidification of thinner solid shaped fibers before interlacing. , the woven fibers are molded in cold water at 20°C to obtain a three-dimensional network structure. By controlling the traction rate, the density of the three-dimensional network structure is controlled at 73kg / m3, and the compression hardness of the three-dimensional network structure is 234N at 40% compression. The compression set rate is 4.8%, and the hardness loss rate after fatigue-resistant repeated compression is 34.1%. When the compression test is repeated, the sound is quite small, and the noise reduction evaluation is rated as excellent.

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Abstract

The invention relates to a three-dimensional net structure with sound attenuation and high elasticity performance. The structure is made of a thermoplastic elastomer, the material hardness is in a range of 80-98 A, the density of the three-dimensional net structure is 20-100 kg / m<3>, and the structure is made of two different types of fibers including (1) hollow fibers which have the wire diameter of 0.3-2 mm and account for 40%-95% of all hole counts and (2) solid special-shaped fibers which have the wire diameter of 0.05-0.6 mm and account for 5%-60% of all hole counts. The compressive deformation durability, resilience, adaptability and sound attenuation performance of a support product are improved, so that the three-dimensional net structure has the longer service life and sound attenuation comfort when used as a buffer material.

Description

technical field [0001] The invention relates to a three-dimensional network structure used as a support, in particular to a three-dimensional network structure with sound attenuation and high elastic performance. Background technique [0002] The three-dimensional network structure belongs to the molded product of the elastic structure. The thermoplastic elastomer is used as the raw material to make long fibers, and the long fibers are then curled into a three-dimensional network structure. The material can be reprocessed and recycled. The structure contains a large number of voids and has a relatively Good air permeability and lightweight performance, used as a support pad can replace the traditional thermosetting polyurethane foam cotton, not only can reduce the environmental burden, but also give the product better comfort. However, when the three-dimensional network structure is compressed and restored, it will produce certain noises. These noises are caused by the frict...

Claims

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Application Information

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IPC IPC(8): D04H3/007D04H3/009D04H3/011D04H3/018D04H3/03
CPCD04H3/007D04H3/009D04H3/011D04H3/018D04H3/03D10B2321/02D10B2331/02D10B2331/10
Inventor 瞿一锋徐明明胡军
Owner JIANGYIN HETRON ELASTOMER NEW MATERIALS TECHNOLOGY CO LTD
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