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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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI 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 material, which can be used through phosphorus-nitrogen flame retardants and The compounding of halogenated flame retardants can effectively maintain the impact performance retention rate of PP materials while improving the flame retardant performance of PP materials

Method used

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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
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Effect test

Embodiment 1~4

[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.

Embodiment 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.

Embodiment 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.

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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.

Description

technical field [0001] The invention relates to the technical field of polymer modified materials, and more particularly, to a low-halogen flame-retardant PP material and a preparation method and application thereof. Background technique [0002] Polypropylene (PP) is a thermoplastic synthetic resin with excellent performance. It has the advantages of excellent physical properties, chemical resistance, easy molding and processing. At the same time, it is light in weight and low in price. , packaging and many other fields have been widely used, with the continuous improvement of environmental protection and safety requirements, flame retardant PP has also been widely used. [0003] At present, 80% of flame retardant PP is a halogen flame retardant. During the combustion process, a large amount of smoke and toxic corrosive gases are generated, which affect human health and pollute the environment. The development of halogen-free or low-halogen antimony-free flame retardant PP ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L25/06C08L63/00C08K3/32C08K5/03C08K5/06
CPCC08L23/12C08K3/32C08K5/03C08K5/06C08L2201/02C08L63/00C08L25/06
Inventor 江翼陈平绪叶南飚杨霄云陆湛泉
Owner KINGFA SCI & TECH CO LTD
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