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Antibacterial glass fiber reinforced polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, applied in the field of plastics, can solve the problems of easy aging and non-antibacterial materials, and achieve the effect of improving warpage, obvious antibacterial effect, anti-mildew effect, and shrinkage difference

Inactive Publication Date: 2019-01-29
安庆市泽烨新材料技术推广服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are long glass fiber reinforced polypropylene materials that can meet the above requirements for the preparation of washing machine drums, the existing long glass fiber reinforced PP materials are prone to aging at high temperatures, and the materials themselves do not have antibacterial properties.

Method used

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  • Antibacterial glass fiber reinforced polypropylene composite material and preparation method thereof
  • Antibacterial glass fiber reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An antibacterial glass fiber reinforced polypropylene composite material, calculated in parts by weight, including the following components:

[0023] 61 parts of copolymerized polypropylene, 12 parts of long glass fiber, 25 parts of organic coated modified silicon carbide powder, 10 parts of tetrapod nano zinc oxide whiskers, 3 parts of dimethyl itaconate, 2 parts of antibacterial agent, isopropyl 2 parts of tris(dioctyl phosphate acyloxy) titanate, 9 parts of ethylene-octene copolymer, 0.9 parts of phenolic heat stabilizer, tetra[β-(3,5-di-tert-butyl-4 -Hydroxyphenyl)propionic acid]pentaerythritol ester 0.5 parts and zinc stearate 0.9 parts. Organically coated modified silicon carbide powder is obtained by first treating silicon carbide with a silane coupling agent and then grafting acrylamide onto the surface. The antibacterial agent is a mixture of cyclic polyformin hydrochloride and layered double hydroxide.

[0024] Preparation:

[0025] Copolymerized polypropylene, 36...

Embodiment 2

[0027] An antibacterial glass fiber reinforced polypropylene composite material, calculated in parts by weight, including the following components:

[0028] 55 parts of copolymerized polypropylene, 15 parts of long glass fiber, 20 parts of organic coated modified silicon carbide powder, 12 parts of tetrapod nano zinc oxide whiskers, 2 parts of dimethyl itaconate, 1.5 parts of antibacterial agent, isopropyl 1 part of tris(dioctyl phosphate acyloxy) titanate, 6 parts of ethylene-octene copolymer, 0.5 part of phenolic heat stabilizer, tris(2,4-di-tert-butylphenyl) phosphite 0.2 part of ester and 0.6 part of zinc stearate. Organically coated modified silicon carbide powder is obtained by first treating silicon carbide with a silane coupling agent and then grafting acrylamide onto the surface. The antibacterial agent is a mixture of cyclic polyformin hydrochloride and layered double hydroxide.

[0029] Preparation:

[0030] Copolymerized polypropylene, long glass fiber accounting for 3...

Embodiment 3

[0032] An antibacterial glass fiber reinforced polypropylene composite material, calculated in parts by weight, including the following components:

[0033] 65 parts of homopolypropylene, 10 parts of long glass fiber, 30 parts of organic coated modified silicon carbide powder, 8 parts of tetrapod nano zinc oxide whiskers, 4 parts of dimethyl itaconate, 3.5 parts of antibacterial agent, three parts 3 parts of isopropyl titanate isostearate, 12 parts of ethylene-propylene-diene copolymer, 1.2 parts of phosphite heat stabilizer, tetra[β-(3,5-di-tert-butyl-4-hydroxyl Phenyl) propionic acid] pentaerythritol ester 0.8 parts and polypropylene wax 1.8 parts. Organically coated modified silicon carbide powder is obtained by first treating silicon carbide with a silane coupling agent and then grafting acrylamide onto the surface. The antibacterial agent is a mixture of cyclic polyformin hydrochloride and layered double hydroxide.

[0034] Preparation:

[0035] The homopolypropylene, long gl...

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Abstract

The invention provides an antibacterial glass fiber reinforced polypropylene composite material and a preparation method thereof. The composite material comprises the following components in parts byweight: 55-65 parts of polypropylene resin, 10-15 parts of long glass fibers, 20-30 parts of organic coating modified silicon carbide powder, 8-12 parts of tetrapod-shaped nano zinc oxide whiskers, 2-4 parts of dimethyl itaconate, 1.5-3.5 parts of an antibacterial agent, 1-3 parts of a titanate coupling agent, 6-12 parts of a toughening agent, 0.5-1.2 parts of a heat stabilizer, 0.2-0.8 part of anantioxidant and 0.6-1.8 parts of a lubricant. The preparation method comprises the following steps: adding the polypropylene resin, the long glass fiber accounting for 30-40% of the total mass, the titanate coupling agent, the toughening agent, the heat stabilizer, the antioxidant and the lubricant into a double-screw extruder through a main feeding port, and adding the rest components into the double-screw extruder from a lateral feeding port, and carrying out melting extrusion and granulation, wherein the extrusion temperature is 210-250 DEG C. The composite material not only has low warpage and good friction resistance, but also has good antibacterial performance.

Description

Technical field [0001] The invention belongs to the technical field of plastics, and specifically relates to an antibacterial glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] As a general-purpose plastic, polypropylene has entered every corner of daily life. With its good rigidity, low shrinkage and deformation, polypropylene materials modified with mineral powder have been widely used in household appliances. The most commonly used method is to add elastomer materials to the polypropylene matrix to improve the impact strength. By introducing 10-40% talc, mica powder, wollastonite, kaolin and other fillers to improve the tensile strength, bending strength and bending mold The amount of scratch resistance can be improved by introducing scratch resistance agents such as silicone masterbatches and amide-containing resins. [0003] Polypropylene is one of the five general-purpose plastics with excellent properties....

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08L23/08C08K13/06C08K9/10C08K9/06C08K3/34C08K7/08C08K7/14C08K7/00C08K5/11C08J5/04
CPCC08J5/043C08J2323/12C08J2323/14C08J2423/08C08K3/34C08K5/11C08K7/00C08K7/08C08K7/14C08K9/06C08K9/10C08K13/06C08K2201/011C08J5/0405
Inventor 汪琦
Owner 安庆市泽烨新材料技术推广服务有限公司
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