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A halogen-free flame-retardant nylon composite material capable of laser marking and preparation method thereof

A laser marking and flame-retardant nylon technology, which is applied in the field of halogen-free flame-retardant nylon composite materials and its preparation, can solve the problems of red phosphorus flame retardants turning red, failing to meet environmental protection requirements, and affecting product appearance. Stable quality, good laser marking effect, and the effect of reducing heat retention time

Active Publication Date: 2022-07-15
东莞市东翔塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing halogen-free flame-retardant nylon materials, most of them use red phosphorus flame retardants, but red phosphorus flame retardants often have problems such as reddish color, poor dyeing ability, and easy precipitation after a long time. It is easy to produce phosphine, which cannot meet the environmental protection requirements, and more gas gas is likely to be attached to the surface of the mold during the injection molding process to form mold scale, causing mold pollution and affecting the appearance of the product

Method used

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  • A halogen-free flame-retardant nylon composite material capable of laser marking and preparation method thereof
  • A halogen-free flame-retardant nylon composite material capable of laser marking and preparation method thereof
  • A halogen-free flame-retardant nylon composite material capable of laser marking and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A halogen-free flame retardant nylon composite material that can be laser marked, the nylon composite material includes the following raw materials by weight:

[0043]

[0044] The nylon resin is polyhexamethylene adipamide (PA66), and the intrinsic viscosity of the nylon resin PA66 is 2.7 dL / g.

[0045] The halogen-free flame retardant is aluminum diethylphosphinate, and the flame retardant synergist is vinyl-functional polymethylsilsesquioxane (AR-511A).

[0046] Each part of the laser marking powder is a mixture of modified titanium dioxide and montmorillonite in a weight ratio of 1:0.80, wherein the preparation of the modified titanium dioxide includes the following steps:

[0047] Step A1: Mix and stir tetrabutyl titanate, acetic acid, and absolute ethanol in a volume ratio of 10:1:12 to prepare solution A, and then add lanthanum nitrate with a doping amount of 0.5 wt% to the volume ratio of ethanol and water In the mixed solution of 10:1, add nitric acid dropw...

Embodiment 2

[0060] A halogen-free flame retardant nylon composite material that can be laser marked, the nylon composite material includes the following raw materials by weight:

[0061]

[0062] The nylon resin is a mixture of polycaprolactam (PA6) and PA12 (polylaurolactam), the intrinsic viscosity of the nylon resin PA6 is 1.8 dL / g, and the intrinsic viscosity of the nylon resin PA12 is 2.2 dL / g.

[0063] The halogen-free flame retardant is aluminum methyl ethyl phosphinate, and the flame retardant synergist is polymethylsilsesquioxane (3224).

[0064] Each part of the laser marking powder is a mixture of modified titanium dioxide and montmorillonite in a weight ratio of 1:0.85, wherein the preparation of the modified titanium dioxide includes the following steps:

[0065] Step A1: Mix and stir tetrabutyl titanate, acetic acid, and absolute ethanol in a volume ratio of 10:2:14 to prepare solution A, and then add cerium nitrate with a doping amount of 0.5wt% to the volume ratio of et...

Embodiment 3

[0078] A laser-markable halogen-free flame-retardant nylon composite material, the nylon composite material comprising the following raw materials by weight:

[0079]

[0080] The nylon resin is a mixture of polyhexamethylene adipamide (PA66) and polysebacic acid decanediamide (PA1010). The intrinsic viscosity of the nylon resin PA66 is 2.2 dL / g, and the nylon resin PA1010 The intrinsic viscosity of 1.6dL / g.

[0081] The halogen-free flame retardant is aluminum diethyl phosphinate, and the flame retardant synergist is polymethylsilsesquioxane (3224).

[0082] Each part of the laser marking powder is a mixture of modified titanium dioxide and montmorillonite in a weight ratio of 1:0.9, wherein the preparation of the modified titanium dioxide includes the following steps:

[0083] Step A1: Mix and stir tetrabutyl titanate, acetic acid, and anhydrous ethanol in a volume ratio of 10:2:14 to prepare solution A, and then add 0.5wt% cerium nitrate to the volume ratio of ethanol a...

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Abstract

The invention relates to the technical field of laser-marked polymer materials, in particular to a laser-markable halogen-free flame-retardant nylon composite material and a preparation method thereof. The nylon composite material includes nylon resin, halogen-free flame retardant, flame retardant synergist, laser marking powder, black masterbatch, adsorbent, glass fiber, antioxidant and lubricant, so that the obtained nylon composite material has the following characteristics: It has excellent flame retardancy and high temperature and high humidity resistance, good tensile strength and bending strength, and good laser marking effect. In addition, the material has a simple preparation process, is environmentally friendly and clean, and has low cost, and can be directly laser marked in the product processing process to realize continuous and automatic industrial production.

Description

technical field [0001] The invention relates to the technical field of laser-marked polymer materials, in particular to a laser-markable halogen-free flame-retardant nylon composite material and a preparation method thereof. Background technique [0002] Flame retardant nylon materials are widely used due to their good mechanical properties, electrical insulation properties and heat resistance, but for the fields of electrical and electronic and household appliances, with the improvement of global environmental awareness, flame retardant nylon materials are required to be halogen-free and non-toxic. , Environmental protection and flame retardant and efficient direction development. Furthermore, as a new generation of precision machining marking method, laser marking has the characteristics of good durability, non-contact processing, high flexibility, and effective anti-counterfeiting. With the refined production and development of products, laser marking technology will be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L77/02C08L83/07C08L61/06C08K5/5313C08K9/04C08K9/02C08K3/22C08K3/34C08K9/10C08K7/24C08K9/06C08K7/14C08K5/13C08K5/103C08K13/06
CPCC08L77/06C08L77/02C08K2003/2241C08L2201/02C08L2201/08C08L2205/025C08L83/04C08L61/06C08K5/5313C08K9/04C08K9/02C08K3/22C08K3/346C08K9/10C08K7/24C08K9/06C08K7/14C08K5/13C08K5/103C08K13/06
Inventor 陈林陈哲周宇肖仙娥徐伟俞福建
Owner 东莞市东翔塑胶有限公司
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