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A kind of foamed polypropylene oil-absorbing material and preparation method thereof

A technology of foamed polypropylene and oil-absorbing materials, which is applied in the fields of environmental protection and polymer materials, can solve the problems of low oil absorption ratio and poor oil retention rate, and achieve the effects of improving oil absorption performance, preventing backflow, and high adsorption performance

Active Publication Date: 2017-04-12
安徽星贝达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the extrusion foaming process, it has modified the formula and improved the design of the die head, overcoming the problems of low oil absorption ratio and poor oil retention rate of traditional polypropylene foamed products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 95% by weight of homopolypropylene, 3% by weight of polystyrene, 2% by weight of talcum powder, and 1% by weight of hexadecyl pyridinium bromide are added to the mixer and mixed evenly, and then added with a diameter of 65mm and a long diameter In the feed port of a single-screw extruder with a ratio of 50, 20% by weight of liquid carbon dioxide is injected into the compression section of the extruder, and after being fully mixed, it is extruded through a circular die (1 mm in diameter), and then stretched, cooled, Cut into pellets. The foamed polypropylene oil-absorbing material has a density of 40g / L, a particle size of 3mm, and a porosity of 95%.

Embodiment 2

[0037] After mixing 85% by weight of polypropylene copolymer, 10% by weight of polymethacrylic acid, 3% by weight of nano silicon dioxide and 1% by weight of talcum powder with a mixer, add a mixture with a diameter of 65mm and an aspect ratio of 50 In the feeding port of the single-screw extruder, 15% by weight of nitrogen is injected into the compression section of the extruder, and after being fully mixed, it is extruded through a circular die (diameter 1mm), then stretched, cooled, and pelletized. The foamed polypropylene oil-absorbing material has a density of 40 g / L, a particle size of 3 mm, and an open porosity of 93%.

Embodiment 3

[0039] 80% by weight of homopolypropylene, 18% by weight of polyacrylate, 5% by weight of long-chain alkyl silicone oil and 0.5% by weight of kaolin are mixed uniformly by a mixer, and then added with a diameter of 65 / 90mm and an aspect ratio In the feeding port of a serial single-screw extruder with a diameter of 35, inject 20% by weight of butane in the compression section of the extruder, fully mix and extrude through a circular die (diameter 2.5mm), then stretch, cool, Cut into pellets. The foamed polypropylene oil-absorbing material has a density of 20 g / L, a particle size of 8 mm, and a porosity of 91%.

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PUM

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Abstract

The invention provides a foamed polypropylene oil-absorbing material and a preparation method thereof, which is extruded from a special extruder die head after mixing a polypropylene resin composition and a foaming agent, and then dragged, cooled, and pelletized And other equipment molding. The polypropylene resin composition is composed of polypropylene, a modifying agent, a nucleating agent and an lipophilic additive, and the weight of the foaming agent accounts for 1-20% of the weight of the polypropylene resin composition. The foamed polypropylene oil-absorbing material of the invention has an oil absorption rate as high as 30g / g; and can be reused, has high production process stability and superior material performance.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and polymer materials, and in particular relates to a foamed polypropylene oil-absorbing material which can be used to clean up oil and hydrocarbon leakage pollution and a preparation method thereof. Background technique [0002] As the use and transportation of crude oil and various oil products have become an inseparable part of modern life, oil spills of various scales have become more frequent. In recent years, oil tank leaks from oil tankers on the high seas have attracted great public attention . As we all know, oil pollution is extremely destructive to ecology and the environment, and oil film pollution can cause serious damage to aquatic organisms. This is because the oil film prevents oxygen from entering the water body, making the water body anoxic, and the oil washed to the beach will also damage the surrounding environment. organisms can be seriously affected. This j...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/16C08L33/08C08L25/06C08L75/04C08L33/02C08K3/26C08K3/32C08K3/36C08K3/30C08K3/04C08K5/092C08K5/3432C08J9/12C08J9/10C08J9/08B29B9/06
CPCC08J9/103C08J9/122C08J9/141C08J2203/04C08J2203/06C08J2203/14C08J2323/08C08J2323/12C08J2323/14C08J2425/06C08K2201/011C08L23/0815C08L23/12C08L23/14C08L2203/14C08L2205/03C08L2205/24C08L25/06C08K3/34C08K5/3432C08L33/02C08K3/36C08L33/04C08L83/04C08K3/346C08K2003/265C08L75/04C08K3/04
Inventor 戴苍松陶慷郭洪武高振兴李玉玲余莉花
Owner 安徽星贝达新材料科技有限公司