High-performance polypropylene material flame retardant

Abstract

The invention discloses a high-performance polypropylene material flame retardant prepared by the following methods: (1) modifying basalt fiber; (2) preparing modified attapulgite; (3) mixing the basalt fiber obtained in step (1) and the modified attapulgite obtained in step (2), and carrying out superfine grinding to obtain the flame retardant. By combination of the modified basalt fiber and theattapulgite, the compatibility of the flame retardant in PP materials is improved, the flame retardancy of the polypropylene material is significantly improved, and the mechanical properties of composite materials are improved.

Description

Technical field

[0001] The invention belongs to the technical field of modified plastics, and specifically relates to a high-performance polypropylene material flame retardant. Background technique

[0002] In recent years, the application fields of polypropylene (PP) materials have become more and more extensive, and at the same time, the requirements for its performance have become higher and higher. The fiber-reinforced polypropylene composite material has attracted people's attention because of its superior properties such as high strength and high modulus, making it one of the hotspots of current research.

[0003] As one of the five general plastics, polypropylene has the advantages of low density, easy processing, low moisture absorption, good comprehensive mechanical properties, chemical corrosion resistance, and good electrical insulation properties. It is widely used in building materials, electrical engineering, communications, transportation, and household appliances. ...

Examples

Embodiment Construction

[0015] A high-performance polypropylene material flame retardant, and its preparation method includes the following steps:

[0016] (1) Modification of basalt fiber;

[0017] Soak the basalt fiber with 25% hydrochloric acid solution for 15-20min, wash with water, add 1-2% KH550 coupling agent solution, mechanically stir for 25-30min, put it in a 60-62℃ constant temperature water bath Let it stand in the pot for 3-4h, after rotary evaporation, put it in a vacuum drying oven at 80-83℃ for 4-6h, after cooling, obtain the basalt fiber treated with coupling agent;

[0018] (2) Preparation of modified attapulgite;

[0019] Add attapulgite to the ethanol solution with a mass fraction of 15%, ultrasonically shake for 15-20min, then add the silane coupling agent A151 with 0.02% ethanol solution mass to the solution, stir at 300r / min for 30min, filter, Dry the attapulgite to a constant weight to obtain modified attapulgite;

[0020] (3) The basalt fiber obtained in step (1) and the modified att...

Technical field

[0001] The invention belongs to the technical field of modified plastics, and specifically relates to a high-performance polypropylene material flame retardant. Background technique

[0002] In recent years, the application fields of polypropylene (PP) materials have become more and more extensive, and at the same time, the requirements for its performance have become higher and higher. The fiber-reinforced polypropylene composite material has attracted people's attention because of its superior properties such as high strength and high modulus, making it one of the hotspots of current research.

[0003] As one of the five general plastics, polypropylene has the advantages of low density, easy processing, low moisture absorption, good comprehensive mechanical properties, chemical corrosion resistance, and good electrical insulation properties. It is widely used in building materials, electrical engineering, communications, transportation, and household appliances. ...

Examples

Embodiment Construction

[0015] A high-performance polypropylene material flame retardant, and its preparation method includes the following steps:

[0016] (1) Modification of basalt fiber;

[0017] Soak the basalt fiber with 25% hydrochloric acid solution for 15-20min, wash with water, add 1-2% KH550 coupling agent solution, mechanically stir for 25-30min, put it in a 60-62℃ constant temperature water bath Let it stand in the pot for 3-4h, after rotary evaporation, put it in a vacuum drying oven at 80-83℃ for 4-6h, after cooling, obtain the basalt fiber treated with coupling agent;

[0018] (2) Preparation of modified attapulgite;

[0019] Add attapulgite to the ethanol solution with a mass fraction of 15%, ultrasonically shake for 15-20min, then add the silane coupling agent A151 with 0.02% ethanol solution mass to the solution, stir at 300r / min for 30min, filter, Dry the attapulgite to a constant weight to obtain modified attapulgite;

[0020] (3) The basalt fiber obtained in step (1) and the modified att...