A special nylon material for Velcro and its preparation method

A Velcro and nylon technology, applied in the field of nylon materials, can solve the problems of poor crystallization behavior and mold release, and achieve the effect of reducing surface energy, improving fluidity, and reducing the degree of easy dirt and sticky dust

Active Publication Date: 2021-05-11
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the toughened modified nylon material is prepared by extrusion / molding method, there is a problem that the crystallization behavior of the material and the release property are affected by the amorphous toughener, which limits the toughened modified nylon material. In the application of extruded / molded Velcro, how to solve this problem has always been the appeal of the industry

Method used

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  • A special nylon material for Velcro and its preparation method
  • A special nylon material for Velcro and its preparation method
  • A special nylon material for Velcro and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0062] The polyamide of embodiment 2 selects PA6, η=2.8, Zhonglun SC28; Toughening agent selects 10% Jiayong CMG9801 and 10% Dupont E100 for use; Dendrimer selects CYD-701M for use; Nucleating agent selects Bruggmann for use P22; 2% white oil and 0.5% calcium stearate are selected as the release agent; N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) is selected as the antioxidant Hexamethylenediamine; other additives include 0.1% anti-hydrolysis agent, 0.2% coupling agent and 0.2% plasticizer.

Embodiment 3

[0063] The polyamide of embodiment 3 selects PA6, η=2.8, Zhonglun SC28 for use; Toughener selects DuPont E100 for use; Dendrimer selects CYD-701D for use; Nucleating agent selects calcium montanic acid salt CAV102 for use; Release agent selects stearic acid for use Calcium; N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine is selected as an antioxidant; other additives include 0.1% coupling agent and 0.1% lubricant.

Embodiment 4

[0064] The polyamide of embodiment 4 selects PA6, η=2.4, Xinhui Meida M2400; Toughener selects DuPont N416 for use; Dendrimer selects CYD-701D for use; Nucleating agent selects calcium montanic acid salt CAV102 for use; Release agent selects silicon for use Ketone powder; N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine is selected as the antioxidant; other additives include 0.2% anti-hydrolysis agent, 0.1 % plasticizer and 0.2% pigment.

[0065] The present invention also provides the comparative example 1-4 raw material proportioning (each component is by weight percentage) as table 2:

[0066] Table 2

[0067]

[0068]

[0069] Among them, the polyamide of comparative example 1 is selected: PA6, η=2.4, Xinhui Meida M2400; the release agent is selected: white oil 1% and calcium stearate 0.5%; the antioxidant is selected: N, N'-bis- (3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine; other additives include: 0.1% antistat...

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Abstract

The invention provides a special nylon material for velcro and a preparation method thereof. The special nylon material for velcro comprises in weight percentage: 67%-88% polyamide, 10%-25% toughening agent, 0.3%-1% Dendrimer, 0.1%-3% nucleating agent, 0.5%-5% mold release agent, 0.2%-1% antioxidant, 0-3% other additives, wherein the toughening agent is a polar branched chain of polyolefins. The toughening system used in the special nylon material for Velcro has little effect on the crystallization rate of polyamide; under the action of a nucleating agent, the polyamide achieves rapid crystallization at a relatively high temperature, and is suitable for the preparation of nylon Velcro by extrusion / molding; Under the dual action of the release agent, the material can be smoothly demolded during the extrusion and calendering process, without adhesion to the mold, the hook of the Velcro is not broken, not pulled, and the demoulding noise is small. The prepared nylon Velcro It has excellent cold resistance, heat resistance, beautiful appearance and durability.

Description

technical field [0001] The invention relates to the field of nylon materials, in particular to a special nylon material for Velcro and a preparation method thereof. Background technique [0002] Velcro, also known as Velcro, is composed of hook surface and wool surface. The commonly used materials are nylon and polypropylene. Traditional Velcro is made by weaving or weaving. For example, the patent CN1393189A discloses a method for making a hook and loop fastener. First, the surface of the nylon thread is dry-fired after waterproofing with a waterproofing agent; then, the surface of the waterproof layer is coated, sprayed or soaked with polyurethane resin. Form a water pressure-resistant layer; finally, weave the treated nylon yarn into a plurality of ring-shaped bodies arranged at equal intervals, and cut a hook-shaped buckle end on an appropriate side of the ring-shaped body. The method for preparing the hook and loop fastener is cumbersome, and the production efficiency ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L51/06C08L67/00C08K3/34C08K5/20C08K5/098C08K13/02
Inventor 戴益婷
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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