Flame retardant polypropylene material and preparation method thereof

Abstract

The invention relates to a flame retardant polypropylene material and a preparation method thereof. The flame retardant polypropylene material is prepared from the following components in parts by weight: 60-90 parts of polypropylene, 10-40 parts of an intumescent flame retardant, 0.1-5 parts of a flame retardant synergist, 0.01-2 parts of an antioxidant and 0-5 parts of a lubricating agent. The flame retardant polypropylene material has the advantages that a flame retardant effect can be obtained by virtue of the intumescent flame retardant, charing amount can be increased, formation of a porous intumescent carbon foam layer is catalyzed, and the flame retardant effect of the polypropylene material is greatly enhanced;a target flame retardant effect can be obtained under the condition that the additive amount of the flame retardant is relatively small, and the additive amount of the flame retardant in the material is effectively reduced, so that material cost is reduced, harms of the flame retardant on the environment and human body are reduced, and influence of the flame retardant on mechanical properties of the material is reduced.

Description

technical field

[0001] The invention relates to a flame-retardant polypropylene material and a preparation method thereof. Background technique

[0002] Polypropylene material is widely used in the fields of automobile materials, electronic appliances, building materials and packaging materials due to its advantages of light weight, low price, good processing performance and good mechanical properties. However, the oxygen index of polypropylene is only 18%, which is a flammable material, and there are many safety hazards in the use process. Once a fire occurs, a large number of molten droplets will be generated, which will promote the spread of the fire. Therefore, in some special fields, polypropylene is required to have better flame retardant effect.

[0003] At present, the commonly used flame retardants are halogen flame retardants, which are widely used in flame-retardant polypropylene modified materials due to their high-efficiency flame-retardant effect. However, th...

Examples

Embodiment 1

[0022] Put 80 kg of polypropylene PP 425 powder, 30 kg of intumescent flame retardant Doher-6000, 2 kg of nano-sized zinc sulfide, 0.2 kg of antioxidant 1010 and 0.2 kg of antioxidant 168, and 2 kg of lubricant calcium stearate in Melt, mix and disperse in a twin-screw extruder for 10 minutes, and after all raw materials are blended, extruded and granulated, the polypropylene compound of this embodiment is obtained.

Embodiment 2

[0024] 70 kg of polypropylene BX3800, 20 kg of intumescent flame retardant Doher-6000, 1 kg of nano-scale zinc sulfide, 0.2 kg of antioxidant 1010, 0.1 kg of antioxidant 1076 and 0.1 kg of antioxidant DSTDP, 0.2 kg of lubricant hard Fatty acid, 0.2 kg of zinc stearate, 0.1 kg of polyethylene wax, and 0.1 kg of erucamide were melt-mixed and dispersed in a twin-screw extruder for 15 minutes, and all the raw materials were blended, extruded and granulated to obtain this example polypropylene compound.

Embodiment 3

[0026] 60 kg of polypropylene PP K9026, 10 kg of intumescent flame retardant Orient IFR-P603, 3 kg of nano-scale zinc sulfide, 1 kg of antioxidant 264, 0.5 kg of antioxidant 2246 and 0.5 kg of antioxidant DLTP, lubricant 0.2 kg of polypropylene wax, 0.2 kg of erucamide and 1 kg of N,N-ethylene bis stearic acid amide were melted, mixed and dispersed in a twin-screw extruder for 5 minutes, and all raw materials were blended, extruded and granulated to obtain The polypropylene composite of this example.

technical field

[0001] The invention relates to a flame-retardant polypropylene material and a preparation method thereof. Background technique

[0002] Polypropylene material is widely used in the fields of automobile materials, electronic appliances, building materials and packaging materials due to its advantages of light weight, low price, good processing performance and good mechanical properties. However, the oxygen index of polypropylene is only 18%, which is a flammable material, and there are many safety hazards in the use process. Once a fire occurs, a large number of molten droplets will be generated, which will promote the spread of the fire. Therefore, in some special fields, polypropylene is required to have better flame retardant effect.

[0003] At present, the commonly used flame retardants are halogen flame retardants, which are widely used in flame-retardant polypropylene modified materials due to their high-efficiency flame-retardant effect. However, th...

Examples

Embodiment 1

[0022] Put 80 kg of polypropylene PP 425 powder, 30 kg of intumescent flame retardant Doher-6000, 2 kg of nano-sized zinc sulfide, 0.2 kg of antioxidant 1010 and 0.2 kg of antioxidant 168, and 2 kg of lubricant calcium stearate in Melt, mix and disperse in a twin-screw extruder for 10 minutes, and after all raw materials are blended, extruded and granulated, the polypropylene compound of this embodiment is obtained.

Embodiment 2

[0024] 70 kg of polypropylene BX3800, 20 kg of intumescent flame retardant Doher-6000, 1 kg of nano-scale zinc sulfide, 0.2 kg of antioxidant 1010, 0.1 kg of antioxidant 1076 and 0.1 kg of antioxidant DSTDP, 0.2 kg of lubricant hard Fatty acid, 0.2 kg of zinc stearate, 0.1 kg of polyethylene wax, and 0.1 kg of erucamide were melt-mixed and dispersed in a twin-screw extruder for 15 minutes, and all the raw materials were blended, extruded and granulated to obtain this example polypropylene compound.

Embodiment 3

[0026] 60 kg of polypropylene PP K9026, 10 kg of intumescent flame retardant Orient IFR-P603, 3 kg of nano-scale zinc sulfide, 1 kg of antioxidant 264, 0.5 kg of antioxidant 2246 and 0.5 kg of antioxidant DLTP, lubricant 0.2 kg of polypropylene wax, 0.2 kg of erucamide and 1 kg of N,N-ethylene bis stearic acid amide were melted, mixed and dispersed in a twin-screw extruder for 5 minutes, and all raw materials were blended, extruded and granulated to obtain The polypropylene composite of this example.