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A kind of polypropylene plastic used for trash can and its processing technology

A polypropylene plastic and processing technology, applied in the field of plastic products, can solve the problems of easy penetration of pollutants, damage to the side wall of the trash can, pollution, etc., and achieve the effect of improving the hydrophobic performance

Active Publication Date: 2022-06-24
上海雅承塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polypropylene substrate has the following disadvantages: the surface energy of the polypropylene substrate is low, its hydrophilicity is good, and the contact angle with water is generally 85-90°, so the sewage in the trash can easily adheres to the polypropylene substrate. The surface of the substrate, on the one hand, makes it difficult to clean the trash can, and on the other hand, it also causes the pollutants in the sewage to easily penetrate into the side wall of the trash can, causing the side wall of the trash can to be damaged or polluted

Method used

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  • A kind of polypropylene plastic used for trash can and its processing technology
  • A kind of polypropylene plastic used for trash can and its processing technology
  • A kind of polypropylene plastic used for trash can and its processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1, a polypropylene plastic for trash cans, including a polypropylene substrate. The inner surface of the polypropylene substrate is coated with a hydrophobic coating. The hydrophobic coating includes an adhesive layer coated on a polypropylene substrate and a wax-based hydrophobic material adsorbed on the adhesive layer. The processing technology of the polypropylene plastic includes the following steps:

[0059] S1. Process the polypropylene substrate separately by melt injection molding, and perform activation treatment on the side of the polypropylene substrate that needs to be coated with a hydrophobic coating;

[0060] S2. Coat the adhesive on the surface of the polypropylene substrate;

[0061] S3, preparing the wax-based hydrophobic material into a coating slurry, and immersing the polypropylene substrate in the coating slurry for 5 minutes, so that the wax-based hydrophobic material in the coating slurry is adsorbed on the surface of the plastic polypr...

Embodiment 2～14

[0075] Examples 2 to 14, a polypropylene plastic used for trash cans, differ from Example 1 in that the composition of the adhesive changes. The composition of the adhesive is shown in Table 1.

[0076] Table 1: Formulations of the adhesives in Examples 1-14

[0077]

[0078]

[0079] In the above embodiment, the model of the silane coupling agent is KH570, and the nonionic surfactant is glycerol monostearate.

Embodiment 18

[0080] Example 18, a polypropylene plastic for trash cans, differs from Example 8 in that the nonionic surfactant is Span 60.

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Abstract

The application relates to the technical field of plastic products, in particular to a polypropylene plastic used for trash cans; the application also relates to the processing technology of the polypropylene plastic. One of the polypropylene plastics used for trash cans comprises a polypropylene substrate coated with a hydrophobic coating, the hydrophobic coating comprising an adhesive layer and a wax-based hydrophobic material adsorbed on the adhesive layer. In this application, the surface of the polypropylene substrate has better water absorption, so sewage is not easy to adhere to the polypropylene plastic, so that the trash can made of the polypropylene plastic can be cleaned more easily, thereby improving the garbage collection efficiency. barrel durability.

Description

technical field [0001] The present application relates to the technical field of plastic products, in particular to a polypropylene plastic used for trash cans; the present application also relates to the processing technology of the polypropylene plastic used for trash cans. Background technique [0002] With the improvement of living standards, trash cans have been used in thousands of households, which play an important role in keeping the indoor environment clean and maintaining the sanitation of the living environment. [0003] Polypropylene is a non-toxic, odorless, light and easy-to-obtain material that is widely used in the manufacture of trash cans. However, the polypropylene substrate has the following disadvantages: the surface energy of the polypropylene substrate is low, its hydrophilicity is good, and the contact angle with water is generally 85-90°, so the sewage in the trash can easily adhere to the polypropylene The surface of the substrate, on the one hand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K3/34C08J7/04C08J7/043C08J7/12C09D123/02C09D175/04C09D129/04C09D191/06C09D7/61C09D7/63C09D5/16
CPCC08J7/042C08J7/043C08J7/123C08K3/34C09D123/02C09D175/04C09D7/61C09D7/70C09D7/63C09D191/06C09D5/1656C08J2323/12C08J2423/02C08J2475/04C08J2429/04C08J2491/06C08K2201/011C08L2205/025C08L2205/03C08L23/12C08L75/04C08L29/04C08L91/06C08K7/14C08K5/5425C08L23/02
Inventor 蓝小华颜栋王志强
Owner 上海雅承塑胶制品有限公司