Cellulose fiber-dispersed polyolefin resin composite material, pellet and molded article using same, and method for producing cellulose fiber-dispersed polyolefin resin composite material

A technology of cellulose fiber and polyolefin resin, which is applied in the field of polyolefin resin composite materials, can solve the problems of uneven size and shape, difficulty in resin, etc.

Inactive Publication Date: 2020-04-24
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reuse such polyolefin film sheets as raw materials for resin products, sufficient drying treatment is required, and a large amount of energy is consumed for reuse.
In addition, the size and shape of the raw materials are not uniform, so it is difficult to knead them to obtain a resin with uniform composition and physical properties.

Method used

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  • Cellulose fiber-dispersed polyolefin resin composite material, pellet and molded article using same, and method for producing cellulose fiber-dispersed polyolefin resin composite material
  • Cellulose fiber-dispersed polyolefin resin composite material, pellet and molded article using same, and method for producing cellulose fiber-dispersed polyolefin resin composite material
  • Cellulose fiber-dispersed polyolefin resin composite material, pellet and molded article using same, and method for producing cellulose fiber-dispersed polyolefin resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0245] The present invention is further described based on examples, but the present invention is not limited to these aspects.

[0246] First, the measurement method and evaluation method of each index in the present invention will be described.

[0247] [Melt Flow Rate (MFR)]

[0248] The measurement was carried out in accordance with JIS-K7210 under the conditions of temperature=230° C. and load=5 kgf. The unit of MFR is "g / 10min".

[0249] [Shape of product (polyolefin resin composite material dispersed with cellulose and aluminum)]

[0250] The appearance of the cellulose fiber-dispersed polyolefin resin composite material after kneading was visually evaluated. The state of the bulk (bulk) was regarded as an acceptable product (O), and a powdery substance with a particle size of 2 mm or less, or a substance that ignited significantly after kneading was regarded as a non-acceptable product (×). The bulk specific gravity of the powdery material is small, so it is easy t...

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Abstract

Provided are: a cellulose fiber-dispersed polyolefin resin composite material obtained by dispersing cellulose fibers in a polyolefin resin which contains a polypropylene resin, wherein the proportionof cellulose fibers constitutes 1-70 parts by mass, inclusive, of the 100 parts by mass which is the total mass of the polyolefin resin and the cellulose fibers, and the water absorption rate satisfies the subsequent formula; a pellet and molded article which use the composite material; and a method for producing the composite material. Formula: (water absorption rate)<(cellulose effective mass ratio)2*0.01

Description

technical field [0001] The present invention relates to a polyolefin resin composite material in which cellulose fibers are dispersed, pellets and moldings using the composite material, and a method for producing a polyolefin resin composite material in which cellulose fibers are dispersed. Background technique [0002] The laminated paper constituting paper beverage containers such as milk packaging has the following laminate structure: a polyolefin film such as polyethylene or polypropylene is pasted on the surface of paper mainly composed of cellulose fibers to prevent beverages from It penetrates into the paper part, and in order to improve gas barrier properties, etc., an aluminum thin film layer is assembled as needed. In order to recycle this laminated paper, it is necessary to separate the paper part (pulp) and the polyolefin film part (polyolefin film sheet). [0003] The method of separation treatment is generally a method in which the laminated paper is stirred i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12B29B7/92B29B9/14B29B17/04C08J3/20C08K3/013C08K3/08C08L1/02
CPCB29B7/92B29B9/14B29B17/04C08J3/20C08K3/08C08L1/02C08L23/12C08K2003/0812Y02W30/62C08L1/00C08L51/06C08L23/0815B29B17/02B29B7/10B29B9/06B29C70/28B29B2017/0293B29B7/005B29B7/16B29K2001/00B29K2023/12B29K2105/26C08J3/215C08J2323/12C08J2401/02
Inventor 原英和广石治郎泽田由香太附雅巳铃木俊宏
Owner FURUKAWA ELECTRIC CO LTD
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