Low-halogen flame-retardant PP (polypropylene) material as well as preparation method and application thereof

A flame retardant, phosphorus nitrogen flame retardant technology, applied in the field of polymer modified materials, can solve the problem of not being able to maintain a good impact strength retention rate, and achieve good impact performance retention rate, low dosage, and good flame retardant performance. Effect

Pending Publication Date: 2022-07-12
KINGFA SCI & TECH CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of existing polypropylene PP materials that cannot maintain a good impact strength retention rate while improving flame retardancy, and provide a low-halogen flame-retardant PP m...
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Method used

In comparative example 4, there is no compounding nitrogen-phosphorus flame retardant synergistic effect, added antimony white as flame retardant synergistic composition, antimony white can chemicall...
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Abstract

The invention discloses a low-halogen flame-retardant PP (polypropylene) material as well as a preparation method and application thereof, and belongs to the technical field of polymer modified materials. The low-halogen flame-retardant PP material is prepared from the following components in parts by weight: 80 to 98 parts of PP resin, 0.5 to 3 parts of phosphorus-nitrogen flame retardant and 0.025 to 0.1 part of halogen flame retardant, and the bromine content of the halogen flame retardant is 200 to 900 ppm. According to the low-halogen flame-retardant PP material, the use amount of the halogen-containing flame retardant is low, the low-halogen requirement is met, the problem of environmental pollution of the halogen-containing flame retardant is solved, the halogen-containing flame retardant with the bromine content of 200-900 ppm and the phosphorus-nitrogen flame retardant are compounded, the low-halogen flame-retardant PP material can have the good impact property retention rate and the good flame retardant property, and the impact property retention rate is 85% or above.

Technology Topic

HalogenChemistry +5

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  • Low-halogen flame-retardant PP (polypropylene) material as well as preparation method and application thereof
  • Low-halogen flame-retardant PP (polypropylene) material as well as preparation method and application thereof

Examples

  • Experimental program(12)
  • Comparison scheme(1)

Example

[0060] Examples 1 to 4
[0061] A low-halogen flame-retardant PP material, in parts by weight, includes the components shown in Table 1 below.
[0062] Table 1
[0063] serial number Example 1 Example 2 Example 3 Example 4 PP resin-1 80 98 85 96 Phosphorus nitrogen flame retardant-1 3 0.5 3 0.5 Halogenated flame retardant-1 0.025 0.1 0.030 0.035
[0064] The specific preparation methods of the low-halogen flame-retardant PP materials of the above-mentioned embodiments 1-4 are as follows:
[0065] The PP resin, phosphorus nitrogen flame retardant and halogenated flame retardant are put into the first section of the twin-screw extruder according to the proportion. After being heated and melted by the twin-screw extruder, they are extruded into strips through the die. Then water-cooled and air-dried, and cut into pellets to obtain a low-halogen flame-retardant PP material.

Example Embodiment

[0066] Example 5
[0067] A low-halogen flame retardant PP material, in parts by weight, includes the same components and contents as those in Example 3, except that the phosphorus-nitrogen flame retardant is phosphorus-nitrogen flame retardant-2.
[0068] The specific preparation method of the low halogen flame retardant PP material is the same as that in Example 3.

Example Embodiment

[0069] Example 6
[0070] A low-halogen flame retardant PP material, in parts by weight, includes the same components and contents as those in Example 3, except that the phosphorus-nitrogen flame retardant is phosphorus-nitrogen flame retardant-3.
[0071] The specific preparation method of the low halogen flame retardant PP material is the same as that in Example 3.

PUM

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Description & Claims & Application Information

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