Polypropylene modified material for waste household appliances and preparation method thereof

A technology for waste polypropylene and modified materials, which is applied in the field of polypropylene modified materials for waste household appliances and its preparation, can solve problems such as difficulty in recycling and reduced mechanical properties, achieve good mechanical properties, and solve the effects of poor mechanical properties.

Active Publication Date: 2017-11-24
上海继尔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

However, the plastics in household appliances are affected by light, heat and oxygen during use, resulting in varying degrees of degradation of plastics used in household appliances, severely reducing their mechanical properties, and are difficult to directly recycle.

Method used

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  • Polypropylene modified material for waste household appliances and preparation method thereof
  • Polypropylene modified material for waste household appliances and preparation method thereof
  • Polypropylene modified material for waste household appliances and preparation method thereof

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Experimental program
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preparation example Construction

[0050] The present invention additionally provides a method for preparing a polypropylene modified material for waste household appliances, which uses any one of the above-mentioned polypropylene modified materials for waste household appliances, and the preparation method includes the following steps:

[0051] ① 100 parts by weight of polypropylene for waste household appliances, 0 to 2 parts by weight of organic peroxides, 0 to 10 parts by weight of epoxy functional monomers, and 0 to 10 parts by weight of styrene, prepared by melting and grafting waste and old polypropylene. branches;

[0052] ② 100 parts by weight of waste polypropylene grafts, 0-5 parts by weight of phenolic resin and 0-2 parts by weight of antioxidant 1010 are melt-blended to obtain a melt of waste and old polypropylene modified materials, which is cooled and granulated , drying and injection molding to obtain waste polypropylene modified materials.

[0053] In the preparation process of the waste polyp...

Embodiment 1

[0062] The polypropylene for waste household appliances is pulverized into a particle size of 5-15mm, and then the polypropylene for waste household appliances is placed in a vacuum drying oven and dried for 10 hours at a drying temperature of 100°C. After mixing 100g of polypropylene for waste household appliances, 0.1g of dicumyl peroxide, 4.5g of styrene and 4.5g of glycidyl methacrylate, they are added to a twin-screw extruder, and the twin-screw extruder is set. The temperature of each section from the feeding port to the head of the machine: 185°C, 190°C, 195°C, 200°C, 205°C, 205°C, 200°C, 190°C, 185°C, and the screw speed is 82r / min. The material is melt-extruded and granulated to prepare waste polypropylene grafts. The particle size of waste polypropylene grafts is 3-5 mm; the pellets of waste polypropylene grafts are placed in a vacuum drying oven and dried for 10 hours. The drying temperature was 100°C. Mix 100g of waste polypropylene grafts, 1g of phenolic resin HY...

Embodiment 2

[0065] The polypropylene for waste household appliances is pulverized into a particle size of 5-15mm, and then the polypropylene for waste household appliances is placed in a vacuum drying oven and dried for 10 hours at a drying temperature of 100°C. After mixing 100g of polypropylene for waste household appliances, 0.2g of dicumyl peroxide, 6g of styrene and 6g of glycidyl methacrylate, they were added to a twin-screw extruder, and the twin-screw extruder was set The temperature of each section from the feeding port to the machine head: 185°C, 190°C, 195°C, 200°C, 205°C, 205°C, 200°C, 190°C, 185°C, and the screw speed is 82r / min. The material is melt-extruded and granulated to prepare waste polypropylene grafts. The particle size of waste polypropylene grafts is 3-5 mm; the pellets of waste polypropylene grafts are placed in a vacuum drying oven and dried for 10 hours. The drying temperature was 100°C. Mix 100g of waste polypropylene grafts, 1g of phenolic resin HY-2045 and ...

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Abstract

The invention belongs to the field of a high polymer material, and particularly relates to a polypropylene modified material for waste household appliances and a preparation method thereof. The modified material is prepared from the following materials in parts by weight through melt blending; the materials include waste and old polypropylene graft, phenolic resin and antioxidants 1010, wherein the waste and old polypropylene graft is prepared from polypropylene for waste household appliances, organic peroxides, epoxy functional monomers and styrene through melt blending; the mass of all raw materials of the waste and old polypropylene graft is not zero. The polypropylene modified material for waste household appliances provided by the invention has good mechanical performance; experiments show that the tensile strength of the polypropylene modified material for waste household appliances provided by the invention is higher than 22MPa; the notch impact strength is higher than 4KJ/m<2>; the melt mass flow rate is lower than 12g/10 min.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a modified polypropylene (rPP) material for waste household appliances and a preparation method thereof. Background technique [0002] With the advancement of science and technology, plastics have been widely used in electronics and electrical products (see Table 1); and due to technological and industrial innovations, the development and upgrading of the electronic product industry and market have been accelerated. At the same time, a large amount of electronic and electrical waste is produced, and the disposal of these discarded electronic and electrical waste and the harm to the environment have gradually become problems that cannot be ignored. [0003] Table 1 Proportion of home appliance materials [0004] [0005] Regarding the disposal of waste plastics, extensive landfilling and incineration of waste plastics will not only cause secondary pollution to the environment,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L61/06C08K5/134C08F255/02C08F212/08C08F220/32B29B9/06
CPCB29B9/06C08F255/02C08K5/1345C08L51/06C08L61/06C08L2203/20C08L2207/20C08F220/325
Inventor 李迎春贾帅杜拴丽曹诺王文生符永高李洁贺茂勇霍志伟
Owner 上海继尔新材料科技有限公司
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