Potassium titanate whisker reinforced and modified PP flame-retardant master batch and preparation method thereof

A technology of potassium titanate whiskers and flame retardant masterbatch, which is applied in the field of modified polymer materials, which can solve the problems of the influence of the surface finish of the workpiece, the wear of the screw and the mold, and the reduction of the fluidity of the matrix, and achieve excellent microscopic enhancement. and filling ability, reduction of molding shrinkage, and reduction of linear expansion coefficient

Inactive Publication Date: 2016-12-07
WUHAN KINGBULL ECONOMIC DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, glass fiber, carbon fiber, plant fiber, and basalt fiber will increase the viscosity of the system after filling PP, reduce the fluidity of the matrix, and cause great wear to the screw and mold, and also affect the surface finish of the part.

Method used

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  • Potassium titanate whisker reinforced and modified PP flame-retardant master batch and preparation method thereof
  • Potassium titanate whisker reinforced and modified PP flame-retardant master batch and preparation method thereof
  • Potassium titanate whisker reinforced and modified PP flame-retardant master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A potassium titanate whisker-reinforced modified PP flame-retardant masterbatch, prepared from the following raw materials in parts by weight:

[0024]

[0025] The above-mentioned potassium titanate whisker reinforced modified PP flame retardant masterbatch, the steps are:

[0026] 1) Take by weighing polypropylene copolymer, maleic anhydride grafted polypropylene, potassium hexatitanate whisker, melamine ammonium pyrophosphate, bismuth trioxide, polyethylene terephthalate and 2 according to the above proportioning ratio, 6-di-tert-butyl-4-aminophenol;

[0027] 2) Copolymerized polypropylene, maleic anhydride grafted polypropylene, potassium hexatitanate whisker, melamine ammonium pyrophosphate, bismuth trioxide, polyethylene terephthalate and 2,6-di-tert-butyl - Add 4-aminophenol to the twin-screw extruder for extrusion and granulation. Control the temperature of the first zone of the twin-screw extruder barrel to 170°C, the temperature of the second zone to 180°C...

Embodiment 2

[0029] A potassium titanate whisker-reinforced modified PP flame-retardant masterbatch, prepared from the following raw materials in parts by weight:

[0030]

[0031] The above-mentioned potassium titanate whisker reinforced modified PP flame retardant masterbatch, the steps are:

[0032] 1) Weigh copolymerized polypropylene, maleic anhydride grafted polypropylene, potassium hexatitanate whisker, melamine ammonium pyrophosphate, aluminum hydroxide, bismuth trioxide, polyethylene terephthalate according to the above ratio Esters and 2,6-di-tert-butyl-4-aminophenol;

[0033] 2) Copolymerized polypropylene, maleic anhydride grafted polypropylene, potassium hexatitanate whiskers, melamine ammonium pyrophosphate, aluminum hydroxide, bismuth trioxide, polyethylene terephthalate and 2,6- Di-tert-butyl-4-aminophenol is added to the twin-screw extruder for extrusion and granulation. The temperature of the first zone of the twin-screw extruder barrel is 170°C, the temperature of th...

Embodiment 3

[0035] A potassium titanate whisker-reinforced modified PP flame-retardant masterbatch, prepared from the following raw materials in parts by weight:

[0036]

[0037]

[0038] The above-mentioned potassium titanate whisker reinforced modified PP flame retardant masterbatch, the steps are:

[0039] 1) Weigh copolymerized polypropylene, maleic anhydride grafted polypropylene, potassium hexatitanate whisker, melamine ammonium pyrophosphate, expandable graphite, bismuth trioxide, polyethylene terephthalate according to the above ratio Esters and 2,6-di-tert-butyl-4-aminophenol;

[0040] 2) Copolymerized polypropylene, maleic anhydride grafted polypropylene, potassium hexatitanate whiskers, melamine ammonium pyrophosphate, expandable graphite, bismuth trioxide, polyethylene terephthalate and 2,6- Di-tert-butyl-4-aminophenol is added to the twin-screw extruder for extrusion and granulation. The temperature of the first zone of the twin-screw extruder barrel is 170°C, the tem...

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Abstract

The invention discloses a potassium titanate whisker reinforced and modified PP flame-retardant master batch and a preparation method thereof. The potassium titanate whisker reinforced and modified PP flame-retardant master batch is prepared from certain proportion of co-polypropylene, maleic anhydride grafted polypropylene, potassium titanate whiskers, a halogen-free flame retardant, a synergistic flame retardant, a plasticizer and a hindered phenol antioxidant. The preparation method comprises the steps that co-polypropylene, maleic anhydride grafted polypropylene, the potassium titanate whiskers, the halogen-free flame retardant, the synergistic flame retardant, the plasticizer the and hindered phenol antioxidant are added into a twin-screw extruder for extrusion pelletization, and the potassium titanate whisker reinforced and modified PP flame-retardant master batch is obtained. The PP flame-retardant master batch has the advantages of being high in strength, good in toughness, high in rigidity, good in bending resistance performance, good in flame retardance and the like. The preparation method is simple in technology, convenient to operate and low in cost.

Description

technical field [0001] The invention relates to the technical field of modified polymer materials, and more specifically relates to a potassium titanate whisker-reinforced modified PP flame-retardant masterbatch and a preparation method thereof. Background technique [0002] Random copolymerized PP is a semi-crystalline polymer with low density, corrosion resistance, good chemical stability, non-toxic and environmental protection. As one of the four general-purpose plastics, it is widely used in automobiles, pipes, home improvement and other fields . In order to improve the mechanical properties of PP, fiber filling is usually used. At present, the fibers reported as PP reinforcement include glass fiber, carbon fiber, plant fiber, and basalt fiber, among which glass fiber is the most widely used. The filling of fibers prevents the expansion and propagation of cracks inside the structure when the material is loaded, and greatly increases the energy required for material fra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/06C08L67/02C08K13/04C08K7/08C08K5/52C08K3/22C08K5/18C08K7/24
CPCC08L23/14C08L2201/02C08L2205/03C08L51/06C08L67/02C08K13/04C08K7/08C08K5/5205C08K3/22C08K5/18C08K2003/2227C08K7/24
Inventor 陈厚忠
Owner WUHAN KINGBULL ECONOMIC DEV
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