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A kind of halogen-free flame-retardant copolymerized polyamide 66 resin and preparation method thereof

A technology for copolymerizing polyamide and polyamide, applied in the direction of single-component polyamide rayon, etc., can solve the problems affecting the flame retardant performance and mechanical performance of flame retardant polyamide 66, and the decomposition of flame retardant, and achieve high mechanical performance. , Improve the flame retardant performance, improve the effect of flame retardant and elongation at break

Active Publication Date: 2018-02-09
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it does not solve the problem that the flame retardant in the polyamide 66 is decomposed due to high temperature during the polymerization and processing, which affects the flame retardancy and mechanical properties of the flame retardant polyamide 66.

Method used

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  • A kind of halogen-free flame-retardant copolymerized polyamide 66 resin and preparation method thereof
  • A kind of halogen-free flame-retardant copolymerized polyamide 66 resin and preparation method thereof
  • A kind of halogen-free flame-retardant copolymerized polyamide 66 resin and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-1

[0056] The phosphine oxide dibasic acid BCPPO and 1,6-hexamethylenediamine were selected as reactants, and the temperature in the heating interval was set at 80°C to prepare 910 mol / time of organic phosphine ammonium salt (1#) for future use.

Embodiment 1-2

[0058] The phosphine oxide dibasic acid BBPPO and 1,6-hexanediamine were selected as reactants, and the temperature in the heating interval was set at 80°C to prepare 860 mol / time of organic phosphine ammonium salt (2#) for future use.

Embodiment 1-3

[0060] Select phosphine oxide dibasic acid CEMPO and 1,6-hexanediamine as reactants, and set the temperature in the heating interval to 80°C to prepare 900 moles of organic phosphonium ammonium salt (3#) for future use.

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Abstract

The invention discloses a halogen-free flame-retardant copolymerized polyamide 66 resin and a preparation method thereof. Copolymerization is carried out to prepare a halogen-free copolymerization flame-retardant polyamide 66 resin. The halogen-free copolymerized flame-retardant polyamide 66 resin of the present invention is a milky white non-crystalline glass-like polymer, the melting range is 260-270°C, and the relative viscosity is 2.75-2.90; The phosphorus content is 0.6% to 0.8%, the flame retardant level is UL-94V-0, the tensile strength is not less than 80.0MPa, and the elongation at break is 64.5% to 68.5%. The halogen-free copolymerized flame-retardant polyamide 66 resin of the present invention has the characteristics of halogen-free flame retardancy, high viscosity, no droplet and high mechanical strength, and can be widely used in the fields of fibers and textiles.

Description

technical field [0001] The invention belongs to polyamide and its preparation. It relates to a halogen-free flame-retardant copolymerized polyamide 66 resin and a preparation method thereof. The halogen-free flame-retardant copolymerized polyamide 66 resin of the present invention has the characteristics of halogen-free flame retardancy, high viscosity, no droplet and high mechanical strength, and can be widely used in the fields of fibers and textiles. Background technique [0002] At present, the halogen-free flame retardant of polyamide is mainly achieved through two ways: (1) using additive flame retardant in polyamide resin, that is, adding flame retardant to polyamide by mechanical blending method, so that It obtains flame retardancy; whether flame-retardant polyamide fibers or flame-retardant engineering plastics are prepared by this method, it has a certain impact on the application of flame-retardant polyamide resins. At present, the flame retardant modification o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/42D01F6/90
Inventor 余莉袁港李建学贾锐
Owner SICHUAN DONGFANG INSULATING MATERIAL
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