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Preparation process of antibacterial polypropylene plastic

A kind of antibacterial polypropylene and preparation technology, which is applied in the direction of flat products, applications, household appliances, etc., can solve the problems of poor antibacterial effect and uneven distribution, achieve good antibacterial effect, good dispersion performance, and reduce deformation.

Inactive Publication Date: 2018-05-04
四川威亿塑胶制品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a preparation process for antibacterial polypropylene plastics, and solve the problems of poor antibacterial effect and uneven distribution

Method used

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  • Preparation process of antibacterial polypropylene plastic
  • Preparation process of antibacterial polypropylene plastic
  • Preparation process of antibacterial polypropylene plastic

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Embodiment Construction

[0041] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following description.

[0042] A preparation process for antibacterial polypropylene plastics, comprising the steps of:

[0043] S1 raw material pretreatment: put polypropylene into a vacuum oven, and vacuum dry to obtain pretreated materials for use;

[0044] S2 preheating treatment: Preheat the injection cylinder; install the injection mold, and preheat both the upper mold and the lower mold;

[0045] S3 hot melt stage:

[0046] S31: adding the pretreated substance into the injection molding cylinder and heating until melting;

[0047] S32: dropwise adding the mixed solution of antibacterial agent and auxiliary agent after melting in step S31;

[0048]S33: Melt again for 15-30 minutes after the step S32 is added dropwise to obtain a hot-melt plastic;

[0049] S4 inj...

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Abstract

The invention relates to a preparation process of antibacterial polypropylene plastic. The preparation process comprises the following steps that S1, raw materials are pretreated; S2, preheating treatment is conducted, specifically, an injection molding cylinder is preheated, injection moulds are mounted, and the upper mould and the lower mould are both preheated; S3, the hot melting stage is conducted, specifically, S31, pretreated objects are added into the injection molding cylinder to be heated to be melted, S32, after the objects in the step S31 are melted, a mixture solution of an antibacterial agent and an auxiliary is dropwise added, and S33, after dropwise adding in the step S32 is completed, melting is conducted again for 15-30 min to obtain hot-melted plastic; S4, the injectionmolding stage is conducted, specifically, the hot-melted plastic in the step S33 is injected to the preheated upper mould and lower mould in the step S3, and the pressure is maintained for 5-8 s; andS5, cooling forming is conducted, specifically, a plastic plate after pressure maintaining in the step S4 is placed into a cooling water tank to be cooled, and the plastic plate is obtained after themoulds are opened. The preparation process has the advantages that the antibacterial effect is good, dispersibility is good, the forming rate is high, and the process is simple.

Description

technical field [0001] The invention relates to the technical field of preparation technology of antibacterial plastics, in particular to a preparation technology of antibacterial polypropylene plastics. Background technique [0002] Due to the rapid development of the real estate industry, there is a great domestic demand for high-quality PP pipe materials. At present, only Yanshan Petrochemical's 4220 and B8101 can meet the requirements of domestic pipe production enterprises. The shortage needs to be imported. The main imported products are Nordic. RA130E of chemical industry, EP332C of BASELL, RP2400 of Korea Oil & Chemical, R200P of Korea Hyosung and R910 of Korea LG, etc. The main characteristics of this type of imported polypropylene are as follows: the molar mass is relatively large, and the MFR is less than 0.5g / 10min. Peak-shaped distribution for easy processing and production; finally, ethylene or other α-olefin copolymers are used to provide certain impact resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76B29C45/78B29B13/06C08L23/12C08K13/02C08K5/1535C08K3/08C08K5/1545C08K3/34B29L7/00
CPCB29C45/76B29B13/06B29C45/78B29C2945/76531B29C2945/76561B29C2945/76732B29C2945/76765B29L2007/002C08K3/08C08K3/34C08K5/1535C08K5/1545C08K13/02C08K2003/0806C08K2201/011C08L23/12
Inventor 易健
Owner 四川威亿塑胶制品有限公司
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