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A kind of phosphorus-containing copolymer nylon and its preparation method and application

A technology of nylon and copolymer, which is applied in the field of phosphorus-containing copolymerized nylon and its preparation, to achieve long-lasting flame-retardant effects, excellent application prospects, and improved flame-retardant and elongation at break effects

Active Publication Date: 2022-07-12
JINCHUANGJING NEW MATERIAL TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of large amount of flame retardants used in the prior art, melt dripping and poor spinnability of flame retardant polymers, the present invention provides a phosphorus-containing nylon, its preparation method and application, that is, in the nylon polymerization process Introduce macromolecular phosphorus-containing components to maximize the compatibility of the system, reduce the problems that are prone to occur in blending modification, reduce the amount of flame retardants, and significantly improve the flame retardancy and spinnability of nylon , and this method is simple and easy to produce on a large scale

Method used

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  • A kind of phosphorus-containing copolymer nylon and its preparation method and application
  • A kind of phosphorus-containing copolymer nylon and its preparation method and application
  • A kind of phosphorus-containing copolymer nylon and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Example 1: Flame Retardant Nylon I

[0089] Take 10g of phosphonate-carbonate copolymer (FRX Polymer Noifa OL5000), 0.5g of tris(2.4-di-tert-butylphenyl) (Beijing Jiyi Chemical Co., Ltd., 168), 89g of nylon 6 (Baling Petrochemical, BL2340) ) after blending evenly, then add 0.5g of aliphatic epoxy (Jiangsu Tetel New Material Technology Co., Ltd., ERL4221) and mix evenly for a second time, melt and blend in the mixing chamber of the torque rheometer respectively, and the rotor is Sigma type, the temperature was set to 230 °C, the rotor speed was set to 50 rpm, 40 g was added each time, and after the torque was balanced, the melt-blending was continued for 6 min, and the samples were collected to obtain flame-retardant nylon I.

[0090] The curve and data of torque change with time such as figure 1 As shown in the middle curve (a), with the introduction of difunctional aliphatic epoxy, the viscosity of the system obviously increases gradually with time, indicating that th...

Embodiment 2

[0091] Example 2: Flame Retardant Nylon II

[0092] Take 13g of phosphonate-carbonate copolymer (FRX Polymer Noifa OL5000), 0.5g of tris(2.4-di-tert-butylphenyl) (Beijing Jiyi Chemical Co., Ltd., 168), 86g of nylon 6 (Baling Petrochemical, BL2340) ) after blending uniformly, then add 0.5 g of aliphatic epoxy (Jiangsu Taiter New Material Technology Co., Ltd., ERL4221) and mix uniformly for the second time. The formulations were melt-blended in the mixing chamber of the torque rheometer, the rotor was a Sigma type, the temperature was set to 230°C, the rotor speed was set to 50rpm, 40g was added each time, and after the torque was balanced, the melt-blending was continued for 6min. The samples were collected to obtain flame retardant nylon II.

[0093] Save the torque curve and data over time such as figure 1 As shown in the middle curve (b), with the introduction of difunctional aliphatic epoxy, the viscosity of the system obviously increases gradually with time, indicating t...

Embodiment 3

[0094] Example 3: Flame Retardant Nylon III

[0095] Take 16g of phosphonate-carbonate copolymer (FRX Polymer Noifa OL5000), 0.5g of tris(2.4-di-tert-butylphenyl) (Beijing Jiyi Chemical Co., Ltd., 168), 89g of nylon 6 (Baling Petrochemical, BL2340) ) after blending uniformly, then add 0.5 g of aliphatic epoxy (Jiangsu Taiter New Material Technology Co., Ltd., ERL4221) and mix uniformly for the second time. The formulations were melt-blended in the mixing chamber of the torque rheometer, the rotor was a Sigma type, the temperature was set to 230° C., the rotor speed was set to 50 rpm, 40 g was added each time, and after the torque was balanced, the melt-blending was continued for 6 min. The samples were collected to obtain flame retardant nylon III.

[0096] Save the torque curve and data over time such as figure 1 As shown in the middle curve (c), with the introduction of difunctional aliphatic epoxy, the viscosity of the system obviously increases gradually with time, indic...

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Abstract

The invention provides a phosphorus-containing copolymerized nylon and a preparation method and application thereof. The nylon and polyphosphonate are melt-mixed, and the phosphorus-containing nylon is prepared by an exchange reaction in the presence of an accelerator. The introduction of macromolecular phosphine-containing components in the nylon polymerization process can maximize the compatibility of the system, reduce the problems that are easy to occur in the blending modification, and reduce the amount of flame retardants, which can significantly improve the flame retardant of nylon. The method is simple in process, easy to produce on a large scale, and more suitable for applications in the field of spinning fibers, wires and cables, and 3D printing.

Description

technical field [0001] The present invention relates to a phosphorus-containing copolymerized nylon and a preparation method and application thereof, in particular to the preparation of a phosphorus-containing flame-retardant and drip-resistant nylon material which can be formed into fibers by a melt-blending method. Background technique [0002] Polyamide (PA, commonly known as nylon) has good comprehensive properties and is an important raw material for synthetic fibers. When used as fibers, it has the advantages of good wear resistance, high resilience, high breaking strength, and good dyeability. However, when polyamide is used in synthetic fibers, it has poor heat resistance and may be flammable in harsh environments, which limits its application in many fields. Therefore, the flame-retardant modification and anti-drip modification of nylon are particularly important. . [0003] In the field of engineering plastics, the flame retardant modification of nylon is mainly c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L85/02
CPCC08L77/02C08L2201/02C08L85/02
Inventor 林云志周波谢丰鸣
Owner JINCHUANGJING NEW MATERIAL TECH SHANGHAI