Production of trimeric-cyanamide cyanurate fire-retardant nylon material

A technology of melamine cyanurate and flame-retardant nylon, which is applied in the field of polymer flame-retardant material preparation, can solve problems such as complex methods and high raw material costs, and achieve the effects of simple operation process, good fluidity, and good mechanical properties

Inactive Publication Date: 2009-10-14
SHENYANG GRAND INJECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods not only have high cost of raw materials, but also complicated methods

Method used

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  • Production of trimeric-cyanamide cyanurate fire-retardant nylon material
  • Production of trimeric-cyanamide cyanurate fire-retardant nylon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Mix the materials, 100 parts of nylon 6, 6 parts of melamine cyanurate, and 0.3 part of antioxidant 1010 in a high-speed mixer,

[0027] 2) Extrusion process: After the materials are mixed evenly, the materials are put into the twin-screw extruder, the extrusion temperature is 230°C, the rotation speed of the host is 480r / min, and the reaction is 1 to 2 minutes. Granules were dried in vacuum at 80°C for 8 hours. Relative density 1.123g / cm 3 , the melt flow rate is 1.61 (g / 10min), the flame retardant effect reaches UL94V-1 level, and the mechanical properties are shown in Table 3.

Embodiment 2

[0029] 1) The materials, 100 parts of nylon 6, 10 parts of melamine cyanurate, and 0.3 parts of antioxidant 1010, were mixed evenly in a high-speed mixer.

[0030] 2) Extrusion process: after the materials are mixed evenly, put the materials into the twin-screw extruder, the extrusion temperature is 225°C, the rotation speed of the host is 480r / min, react for 1 to 2 minutes, and go through stretching, cooling, cutting Granules were dried in vacuum at 100°C for 5 hours. Relative density 1.113g / cm 3 , the melt flow rate is 1.72 (g / 10min), the flame retardant effect reaches UL94V-0 level, and the mechanical properties are shown in Table 3.

Embodiment 3

[0032] 1) The materials, 100 parts of nylon 6, 16 parts of melamine cyanurate, and 0.3 parts of antioxidant 1010, were mixed evenly in a high-speed mixer.

[0033] 2) Extrusion process: After the materials are mixed evenly, the materials are put into the twin-screw extruder, the extrusion temperature is 230°C, the rotation speed of the host is 480r / min, and the reaction is 1 to 2 minutes. Granules were dried in vacuum at 100°C for 5 hours. Relative density 1.084g / cm 3 , the melt flow rate is 1.88 (g / 10min), the flame retardant effect reaches UL94V-0 level, and the mechanical properties are shown in Table 3.

[0034] table 3

[0035]

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Abstract

The invention relates to the preparation of melamine cyanurate flame-retardant nylon material. The preparation method of the flame retardant material is as follows: mix nylon 6, melamine cyanurate, flame retardant synergist, and antioxidant according to the weight ratio, and mix them uniformly in a high-speed mixer; after the materials are evenly mixed, the materials Throw it into a twin-screw extruder, the extrusion temperature is 200-240°C, the rotation speed of the main engine is 400r / min-580r / min, and react for 1-2 minutes. Vacuum dry at 120°C for 2-6 hours. The melamine cyanurate flame-retardant nylon material can be obtained by the method. Adding 10% MCA by this method can make the flame retardant effect of the system reach the level of UL94V-0, and at the same time maintain good mechanical properties of the material system as a whole. The invention has low raw material cost and simple method.

Description

Technical field: [0001] The invention relates to the field of preparation methods of polymer flame-retardant materials, in particular to the preparation of melamine cyanurate flame-retardant nylon materials. Background technique: [0002] With the development of the electrical and electronic industry, the demand for flame-retardant nylon keeps growing rapidly. Although halogen-containing flame retardants have good flame retardant effects, they generate a large amount of smoke when burned, and produce toxic gases, causing secondary pollution. Melamine cyanurate, referred to as MCA, is a polymer formed by the polymerization of melamine and cyanuric acid. It is considered to be the lowest bromine-antimony substitute in terms of price / performance index, and has aroused the interest of the international flame retardant industry. . As a nitrogen-based flame retardant, compared with halogen-based flame retardants, it has lower toxicity and has excellent comprehensive flame-retard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08K5/21B29C47/40B29C47/92C08K5/10C08K5/3492B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/40B29C2948/92561B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 吕通健张向东葛春华关宏宇吴爽王艳秋
Owner SHENYANG GRAND INJECTION TECH CO LTD
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