One-way moisture permeable and heat preservation composite material and preparation method thereof

A composite material and moisture-permeable technology, applied in the textile field, can solve the problems of non-unidirectional moisture permeability and single function, and achieve the effect of ensuring heat preservation and easy control of hydrophilic effect

Active Publication Date: 2018-09-04
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a one-way moisture-permeable and heat-preserving composite material and its preparation method, which solves the technical problem that the fiber composite material in the prior art has a single function and does not have one-way moisture-permeable and heat-preserving functions

Method used

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  • One-way moisture permeable and heat preservation composite material and preparation method thereof
  • One-way moisture permeable and heat preservation composite material and preparation method thereof
  • One-way moisture permeable and heat preservation composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Preparation of coarse denier fiber layer

[0036] The viscose fiber, ES fiber and three-dimensional crimped polyester fiber (pet) were mixed according to the ratio shown in Table 1, opened, carded and cross-laid into a coarse denier fiber layer, and deposited on the receiving net curtain; Rubber fiber is 1.67dtex, 38mm; ES fiber (PE / PP sheath-core bicomponent fiber) is 3.3dtex, 38mm; PET fiber is 6.7dtex, 38mm;

[0037] Table 1

[0038]

[0039] (2) Preparation of nanofiber layer

[0040] Put 5 parts of PVA resin into 95 parts of water at 90°C and stir for 30 minutes to obtain a spinning solution; add the spinning solution to the electrospinning device, and set the spinning voltage at the high-voltage power supply to 35KV to ensure that the wires are connected The spinning voltage between the spinning needle and the grounding device can ensure the continuous ejection of nanofibers. The ambient temperature is set at 26°C, and the flow rate of the spinning needle...

Embodiment 2

[0047] The difference between Example 2 and Example 1 lies in the different proportions of cotton fibers, ES fibers and three-dimensional crimped polyester fibers (pet) in the blended fiber layer, as shown in Table 2.

[0048] Table 2

[0049] .

Embodiment 3

[0051] The difference between embodiment 3 and embodiment 1 is that the proportions of hemp fiber, ES fiber and three-dimensional crimped polyester fiber (pet) in the blended fiber layer are different, as shown in table 3;

[0052] table 3

[0053] .

[0054] Product performance testing and analysis

[0055] The thermal insulation test adopts the YG606 flat-plate heat preservation instrument, the moisture permeability test adopts the moisture absorption method, and the YG501N-II textile moisture permeability tester is used, and the air permeability test adopts the YG461E-IIL automatic air permeability tester.

[0056] Table 4 Product Parameters

[0057]

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Abstract

The invention belongs to the technical field of textiles, relates to a preparation method of composite materials, in particular to a one-way moisture permeable and heat preservation composite materialand a preparation method thereof. The one-way moisture permeable and heat preservation composite material comprises a fluffy layer and an air-tight sealing layer, the fluffy layer is formed by the arrangement of nano fiber layers and coarse denier fiber layers at intervals, the air-tight sealing layer is PET-PA6 double-component ultrafine fiber non-woven fabric, the nano fiber layers are PVA nanofiber layers, and the coarse denier layers are fiber layers blended and carded by PE/PP sheath-core double-component fiber, three-dimensional curved terylene and hydrophilic fiber. The fiber composite material prepared by means of the method has ideal one-way moisture permeable and heat preservation effects and is suitable for liners of cold-proof garments and blankets, building heat preservationmaterials, high fluffiness heat-preserving layers for heat preservation of pipelines and the like.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a preparation method of a composite material, in particular to a one-way moisture-permeable and thermal insulation composite material and a preparation method thereof. Background technique [0002] As a porous medium composed of fibers, fibrous composite materials have the characteristics of light weight, looseness and porosity, and use the air that does not flow inside to block heat conduction. As a typical fibrous material, non-woven materials can be directly formed by a variety of different types of fibers through mechanical fixing methods, thermal fixing methods and other processing methods, with a certain thickness and unique structure, and have a transparent It is a flexible fiber material with high performance, and has a wide range of applications in thermal insulation, filtration and other fields. The thermal insulation and moisture conductivity of fibrous materials are a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4374D04H1/4382D04H1/46D04H1/435D04H1/425D04H1/4258D01D5/00B32B27/02B32B27/12B32B27/32B32B27/30B32B27/36
CPCB32B5/08B32B5/26B32B2262/0223B32B2262/0253B32B2262/0284B32B2262/062B32B2262/065B32B2262/14B32B2419/00D01D5/003D01D5/0084D04H1/425D04H1/4258D04H1/435D04H1/4374D04H1/4382D04H1/46
Inventor 张恒甄琪李贺王晓姣廖喜林张一风宋卫民肖鹏远刘让同章伟
Owner ZHONGYUAN ENGINEERING COLLEGE
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