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Polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of plastics, can solve the problems of easy water absorption and contamination, easy breeding of bacteria and mildew, restrictions on the selection and application of polypropylene materials, etc., to broaden the application field, excellent surface scratch resistance and mechanical properties , Improve the effect of antibacterial and mildew resistance

Inactive Publication Date: 2019-01-01
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

[0003] However, due to the addition of talcum powder, mica powder, wollastonite, kaolin and other fillers, the polypropylene material has a certain degree of water absorption, especially after a long period of application in washing machines, small household appliances, etc., the polypropylene material is prone to Water absorption and staining are more likely to breed bacteria and mildew, which greatly limits the selection and application of polypropylene materials

Method used

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  • Polypropylene composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A polypropylene composite material, calculated in parts by weight, comprises the following components:

[0021] 66 parts of polypropylene copolymer, 19 parts of talcum powder, 5 parts of nano-zinc oxide modified by silane coupling agent, 7 parts of silicone rubber, 2 parts of isopropyl tris(dioctyl phosphate acyloxy) titanate, ethylene-octyl 8 parts of vinyl copolymer, 0.5 parts of tris(2,4-di-tert-butylphenyl) phosphite and 1 part of polyethylene wax.

[0022] Preparation:

[0023] 1) First mix talcum powder, silicone rubber, isopropyl tris(dioctyl phosphate acyloxy) titanate, 35% of the total mass of polypropylene copolymer and 15% of the total mass of ethylene-octene copolymer Uniform, prepare masterbatch with internal mixer;

[0024] 2) the masterbatch obtained in step 1) and silane coupling agent modified nano-zinc oxide, tris(2,4-di-tert-butylphenyl) phosphite, polyethylene wax, remaining ethylene-octene copolymer and The remaining copolymerized polypropylene i...

Embodiment 2

[0026] A polypropylene composite material, calculated in parts by weight, comprises the following components:

[0027] 60 parts of homopolypropylene, 15 parts of talc powder, 3 parts of nano zinc oxide modified by silane coupling agent, 10 parts of silicone rubber, 1 part of isopropyl titanate triisostearate, 5 parts of ethylene-α-olefin polymer 0.2 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and 0.5 parts of polyethylene wax.

[0028] Preparation:

[0029] 1) First mix talcum powder, silicone rubber, isopropyl titanate triisostearate, homopolypropylene accounting for 30% of the total mass and ethylene-α-olefin polymer accounting for 20% of the total mass, and use a dense The masterbatch is prepared from the kneading machine;

[0030] 2) Mix the masterbatch obtained in step 1) with silane coupling agent modified nano-zinc oxide, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, polyethylene wax 1....

Embodiment 3

[0032] A polypropylene composite material, calculated in parts by weight, comprises the following components:

[0033] 35 parts of copolymerized polypropylene, 35 parts of homopolypropylene, 25 parts of talcum powder, 6 parts of nano zinc oxide modified by silane coupling agent, 5 parts of silicone rubber, isopropyl tri(dioctyl phosphate acyloxy) titanic acid 3 parts of ester, 10 parts of ethylene-octene copolymer, 0.8 part of dioctadecyl thiodipropionate and 1.5 parts of polyethylene wax.

[0034] Preparation:

[0035] 1) First mix talcum powder, silicone rubber, isopropyl tri(dioctyl phosphate acyloxy) titanate, polypropylene resin accounting for 40% of the total mass and ethylene-octene copolymer accounting for 10% of the total mass Uniform, prepare masterbatch with internal mixer;

[0036] 2) The masterbatch obtained in step 1) is mixed with silane coupling agent modified nano-zinc oxide, dioctadecyl thiodipropionate, polyethylene wax, remaining ethylene-octene copolymer...

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Abstract

The invention provides a polypropylene composite material and a preparation method thereof. The polypropylene composite material is prepared from the following components: 60 to 70 parts of polypropylene resin, 15 to 25 parts of talcum powder, 3 to 6 parts of modified nanometer zinc oxide, 5 to 10 parts of silicon rubber, 1 to 3 parts of titanate coupling agent, 5 to 10 parts of toughening agent,0.2 to 0.8 part of antioxidant and 0.5 to 1.5 parts of polyethylene wax. The preparation method comprises the following steps: 1) mixing the talcum powder, the silicon rubber, the titanate coupling agent, the polypropylene resin accounting for 30 to 40 percent of the total weight as well as the toughening agent accounting for 10 to 20 percent of the total weight, and preparing master batches by aninternal mixer; and 2) mixing the master batches obtained in the step 1), the modified nanometer zinc oxide, the antioxidant, the polyethylene wax, the remained toughening agent and the remained polypropylene resin, melting, mixing and dispersing at 210 to 240 DEG C by a double-screw extruding machine, and performing extrusion granulation. The composite material has high hydrophobicity and friction resistance.

Description

technical field [0001] The invention belongs to the technical field of plastics, and in particular relates to a polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene, as a general-purpose plastic, has entered every corner of daily life. Polypropylene modified with mineral powder has been widely used in household appliances due to its good rigidity, low shrinkage and deformation. The currently used method is to add elastomer materials to the polypropylene matrix to improve the impact strength, and to improve the tensile strength, bending strength and bending modulus by introducing 10-40% talcum powder, mica powder, wollastonite, kaolin and other fillers. The amount of scratch resistance is improved by introducing scratch resistance agents such as silicone masterbatches and amide-containing resins. Although such methods adjust the comprehensive properties by simultaneously applying elastomers, fillers and anti-scratch a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L83/04C08L23/08C08L23/06C08K13/06C08K9/06C08K3/22C08K3/34C08K5/526C08K5/134C08K5/372
CPCC08K2003/2296C08K2201/011C08L23/12C08L23/14C08L2205/02C08L2205/035C08L83/04C08L23/0815C08L23/06C08K13/06C08K9/06C08K3/22C08K3/34C08K5/526C08K5/1345C08K5/372
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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