Phosphorus-containing copolymerized nylon as well as preparation method and application thereof

A technology for nylon and flame-retardant nylon, which is applied in the field of phosphorus-containing copolymerized nylon and its preparation, and achieves the effects of little influence on mechanical properties, easy process, and excellent application prospects

Active Publication Date: 2020-05-01
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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  • Phosphorus-containing copolymerized nylon as well as preparation method and application thereof
  • Phosphorus-containing copolymerized nylon as well as preparation method and application thereof
  • Phosphorus-containing copolymerized nylon as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Embodiment 1: flame retardant nylon I

[0088] Get 10g phosphonate-carbonate copolymer (FRX Polymer Noifa OL5000), 0.5g three (2.4-di-tert-butylphenyl) (Beijing extremely easy Chemical Co., Ltd., 168), 89g nylon 6 (Baling Petrochemical, BL2340 ) after blending evenly, then add 0.5g aliphatic epoxy (Jiangsu Taitel New Material Technology Co., Ltd., ERL4221) and mix evenly for the second time, melt and blend in the mixing chamber of the torque rheometer respectively, and the rotor is Sigma type, the temperature was set at 230°C, the rotor speed was set at 50rpm, and 40g was added each time. After the torque was balanced, the melt-mixing was continued for 6 minutes, and samples were collected to obtain flame-retardant nylon I.

[0089] The curve and data of torque 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 it has ach...

Embodiment 2

[0090] Example Two: Flame Retardant Nylon II

[0091] Get 13g phosphonate-carbonate copolymer (FRX Polymer Noifa OL5000), 0.5g three (2.4-di-tert-butylphenyl) (Beijing extremely easy chemical industry Co., Ltd., 168), 86g nylon 6 (Baling petrochemical, BL2340 ) after blending evenly, then add 0.5g aliphatic epoxy (Jiangsu Taitel New Material Technology Co., Ltd., ERL4221) and mix evenly for the second time. Melt and blend the formulations in the mixing chamber of the torque rheometer, the rotor is Sigma type, the temperature is set at 230°C, the rotor speed is set at 50rpm, 40g is added each time, and the blending is continued for 6 minutes after the torque is balanced. Collect samples to obtain flame retardant nylon II.

[0092] 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 that it has achieved t...

Embodiment 3

[0093] Example Three: Flame Retardant Nylon III

[0094] Get 16g phosphonate-carbonate copolymer (FRX Polymer Noifa OL5000), 0.5g three (2.4-di-tert-butylphenyl) (Beijing extremely easy Chemical Co., Ltd., 168), 89g nylon 6 (Baling Petrochemical, BL2340 ) after blending evenly, then add 0.5g aliphatic epoxy (Jiangsu Taitel New Material Technology Co., Ltd., ERL4221) and mix evenly for the second time. Melt and blend the formulations in the mixing chamber of the torque rheometer, the rotor is Sigma type, the temperature is set at 230°C, the rotor speed is set at 50rpm, 40g is added each time, and the blending is continued for 6 minutes after the torque is balanced. Samples were collected to obtain flame retardant nylon III.

[0095] 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, indicating that it has achieved...

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Abstract

The invention provides phosphorus-containing copolymerized nylon as well as a preparation method and application thereof. Nylon and polyphosphonate are melted and mixed and subjected to an exchange reaction in the presence of an accelerant to prepare phosphorus-containing nylon. Macromolecular phosphine-containing components are introduced in the polymerization process of nylon, the compatibilityof the system is improved to the maximum extent, the problems easily occurring in blending modification are reduced, the using amount of a flame retardant is reduced, the flame retardant performance and spinnability of nylon can be remarkably improved, and the method is simple in process, easy for large-scale production and more suitable for being applied to the fields of spinning fibers, wires and cables and 3D printing.

Description

technical field [0001] The invention relates to a phosphorus-containing copolymerized nylon and its preparation method and application, in particular to a phosphorus-containing flame-retardant and anti-dripping nylon material capable of being prepared into fibers by a 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 a fiber, it has the advantages of good abrasion resistance, high resilience, high breaking strength, and good dyeability. However, when polyamide is used for 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-dripping modification of nylon are particularly important . [0003] In the field of engineering plastics, flame retardant modification of nylon is mainly carried out by twin-screw mel...

Claims

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Application Information

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Patent Type & Authority Applications(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
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