Polypropylene halogen-free flame-retardant anti-static material, and preparation method and applications thereof

A flame retardant and antistatic, polypropylene technology, applied in the field of polypropylene halogen-free flame retardant and antistatic material and its preparation, can solve the problem of large addition of conductive polymer fillers, large addition of inorganic conductive fillers, and high environmental humidity dependence. and other problems, to achieve excellent mechanical properties and processability, optimized flame retardant effect, and excellent antistatic properties.

Inactive Publication Date: 2017-08-29
应急管理部四川消防研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of antistatic, the existing polypropylene flame retardant and antistatic pipeline materials mainly use methods such as adding surfactants, conductive polymer fillers and inorganic conductive fillers, but these technologies and products have some defects in use, such as surfactants Antistatic agents have problems such as poor durability and high dependence on environmental humidity. Conductive polymer fillers have problems such as large additions and high costs. Inorganic conductive fillers have problems such as large additions that affect flame retardant effects.

Method used

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  • Polypropylene halogen-free flame-retardant anti-static material, and preparation method and applications thereof
  • Polypropylene halogen-free flame-retardant anti-static material, and preparation method and applications thereof
  • Polypropylene halogen-free flame-retardant anti-static material, and preparation method and applications thereof

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preparation example Construction

[0033] The present invention also provides a method for preparing a polypropylene halogen-free flame-retardant antistatic material described in any one of the above-mentioned technical solutions, comprising the following steps:

[0034] mixing the above raw materials to obtain a raw material mixture;

[0035] The raw material mixture is melt-extruded to obtain a polypropylene halogen-free flame-retardant antistatic material.

[0036] In the present invention, the above-mentioned raw materials are mixed to obtain a raw material mixture. In the present invention, the mixing is preferably performed in a high-speed mixer. The present invention does not have any special requirements on the mixing order of the raw materials, and can be mixed in any order. In the present invention, the mixing speed of the mixing is independently preferably 1000-1800rpm, more preferably 1200-1600rpm, most preferably 1400rpm; the mixing time of the mixing is independently preferably 1-10min, more pre...

Embodiment

[0042] In all embodiments of the present invention, the conductive carbon black is a conductive material with permanent conductivity, its average particle size is 10-40nm, and its specific surface area should be greater than 200m 2 / g. The diameter of the outer surface of the carbon nanotube is 5-40 nm, and the length is 10-60 μm.

[0043] Raw material composition in table 1 embodiment 1~4 and comparative example 1

[0044]

[0045] Each raw material was weighed according to the mass parts in Table 1, mixed according to the parameters in Table 2, and then melted and extruded by a twin-screw extruder to prepare a polypropylene halogen-free flame-retardant antistatic material.

[0046] Process parameter and performance parameter result in table 2 embodiment 1~4 and comparative example 1

[0047]

[0048] It can be known from the above examples that the present invention provides a polypropylene halogen-free flame-retardant antistatic material and its preparation method a...

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Abstract

The invention provides a polypropylene halogen-free flame-retardant anti-static material, and a preparation method and applications thereof. According to the preparation method, a halogen-free intumescent flame retardant is adopted for flame retardant treatment, the halogen-free intumescent flame retardant contains no halogen, is more safe, and is more friendly to the environment; reasonable adjustment of the formula of the halogen-free intumescent flame retardant is carried out, so that flame resistance is improved, material oxygen index is capable of reaching 32%, vertically burning is capable of reaching V0 grade; conductive carbon black and carbon nanotube are capable of providing the polypropylene halogen-free flame-retardant anti-static material with permanent antistatic performance, the antistatic performance is excellent, and cost is relatively low; adding of carbon nanotube is capable of increasing the electrical conduction efficiency of conductive carbon black, and improving the antistatic performance; and material surface resistance is capable of reaching 106omega at an extremely low conductive filling material content.

Description

technical field [0001] The invention relates to the technical field of pipeline materials, in particular to a polypropylene halogen-free flame-retardant antistatic material and a preparation method and application thereof. Background technique [0002] Polypropylene is one of the general-purpose plastics with the largest output and consumption. It has the advantages of good comprehensive performance and strong processability. It is widely used in many fields such as construction, industrial production, daily necessities and transportation. Its products include pipes, plates, injection products, fibers, etc. The limiting oxygen index of polypropylene is only 18, which is a flammable material and has a high fire hazard; at the same time, polypropylene is an insulating material. Because the surface resistivity is as high as 106Ω, it is easy to accumulate static electricity on the surface of the product, resulting in dust collection, Phenomena such as electric shock or spark di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/24C08K3/04C08K3/32C08K5/06C08K3/34C08K7/26C08K13/06C08K9/10
CPCC08K3/04C08K3/32C08K3/346C08K5/06C08K7/24C08K7/26C08K9/10C08K13/04C08K13/06C08K2003/323C08K2201/001C08K2201/003C08K2201/004C08K2201/006C08K2201/011C08L2201/02C08L2201/04C08L2201/22C08L2203/18C08L23/12
Inventor 尹朝露葛欣国张翔李平立
Owner 应急管理部四川消防研究所
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