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A low-odor and low-emission whiteness red phosphorus flame retardant masterbatch for whiteness red phosphorus and nylon and its preparation method

A flame retardant masterbatch, low odor technology, applied in the field of polymer materials, can solve the problems of easy oxidative deterioration, easy moisture absorption, oxidized phosphoric acid, etc., and achieve the effect of overcoming easy moisture absorption, low odor characteristics, and reducing TVOC

Active Publication Date: 2021-09-03
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it also has some disadvantages, such as easy to oxidize and deteriorate in the air, easy to absorb moisture when exposed to the air, oxidize to generate phosphoric acid and release highly toxic phosphine gas, and its own purplish red has limitations for the preparation of light-colored plastic products sex

Method used

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  • A low-odor and low-emission whiteness red phosphorus flame retardant masterbatch for whiteness red phosphorus and nylon and its preparation method
  • A low-odor and low-emission whiteness red phosphorus flame retardant masterbatch for whiteness red phosphorus and nylon and its preparation method

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specific Embodiment approach

[0025] Below by the description of specific embodiment, the present invention is further described, and whiteness red phosphorus used in each embodiment below and odor adsorption masterbatch are all prepared by following method:

[0026] Preparation of whitened red phosphorus: 30% red phosphorus, 10% aluminum sulfate, 5% urea, 50% water, 5% oil-soluble phenolic resin. Aluminum hydroxide coating process: first add aluminum sulfate to water, stir to dissolve it completely, then add red phosphorus, stir for 20 minutes, then transfer to a ball mill to grind until the diameter of red phosphorus particles is 5-10um, and then transfer to reaction In the kettle, slowly add caustic soda (10wt% solution) while stirring until the PH of the system = 5-6, then add coagulant polyacrylamide, stir evenly, keep warm at 75-85°C for 1.5h, and finally pass Filter, wash, and dry to obtain aluminum hydroxide-coated red phosphorus. Phenolic resin coating process: first dilute the oil-soluble phenol...

Embodiment 1

[0029] Pour 40 parts of whiteness red phosphorus, 55 parts of nylon 6, 3 parts of hydrophobic odor absorption masterbatch, 0.6 part of silane coupling agent, 0.2 part of antioxidant 1098, 0.2 part of antioxidant 168 and 1 part of silicone powder Put it into a high-speed mixer, stir at a high speed, mix until uniform, add it to a twin-screw extruder, melt and extrude, and then granulate to prepare a low-odor, low-emission, whiteness red phosphorus flame-retardant masterbatch for nylon.

[0030] Among them, the temperature of the first zone of the twin-screw extruder is 200°C, the temperature of the second zone is 210°C, the temperature of the third zone is 220°C, the temperature of the fourth zone is 230°C, the temperature of the fifth zone is 240°C, and the temperature of the sixth zone is 250°C; The host speed is 350rpm.

Embodiment 2

[0032] Pour 20 parts of whiteness red phosphorus, 77 parts of nylon 6, 1 part of hydrophobic odor absorption masterbatch, 0.8 part of silane coupling agent, 0.5 part of antioxidant 1098, 0.5 part of antioxidant 168 and 0.2 part of silicone powder Put it into a high-speed mixer, stir at a high speed, mix until uniform, add it to a twin-screw extruder, melt and extrude, and then granulate to prepare a low-odor, low-emission, whiteness red phosphorus flame-retardant masterbatch for nylon.

[0033] Among them, the temperature of the first zone of the twin-screw extruder is 230°C, the temperature of the second zone is 230°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 250°C, and the temperature of the sixth zone is 250°C; The host speed is 500rpm.

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Abstract

The invention discloses a low-odor, low-emission, whiteness red phosphorus flame-retardant masterbatch for nylon and a preparation method thereof, which is prepared from the following components in parts by weight: 50-85 parts of whiteness red phosphorus , Hydrophobic odor adsorption masterbatch 1-5 parts, antioxidant 0.2-1.0 parts, lubricant 0.2-1 parts. The red phosphorus flame-retardant masterbatch prepared by the invention has wide versatility, high active ingredients, no obvious odor, low addition amount, and simple preparation method. At the same time, it also breaks through the limitation of color, so that the product is not limited to dark-colored products, and It can effectively reduce dust pollution and improve the working environment.

Description

technical field [0001] The invention relates to a modified red phosphorus flame-retardant nylon material with whiteness, low odor and low emission and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Nylon is a general-purpose engineering plastic with excellent comprehensive properties. It has excellent mechanical properties and the advantages of wear resistance, solvent resistance, and oil resistance. It is widely used in various industries. However, nylon is a flammable material. In order to meet the requirements of flame retardant products, a lot of research on flame retardant is required. Red phosphorus is an excellent halogen-free and environmentally friendly flame retardant with high flame retardant efficiency. Compared with other flame retardants, it requires less addition to achieve the same flame retardant level, so it has little effect on the physical and mechanical properties of materials. But it a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K3/02C08L77/02C08K13/06C08K3/34C08K3/04C08K7/26C08K9/04C08K3/36C08J3/22
CPCC08J3/226C08J2377/02C08J2477/02C08K3/02C08K9/10C08K2003/026C08K2201/011C08L77/02C08L2201/02C08L2205/025C08L2205/03C08K13/06C08K3/34C08K3/04C08K7/26C08K9/08C08K3/36
Inventor 杨桂生苏荣锦吕励耘
Owner HEFEI GENIUS NEW MATERIALS
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