Antibacterial degradable functional film forming processing technology and equipment

A film forming and processing technology, which is applied in the field of functional film forming and processing technology and its equipment, can solve the problems of low preparation quality and poor antibacterial performance of decomposable films, and achieve the reduction of cytotoxicity, inhibition of bacterial growth, and preparation process perfect effect

Pending Publication Date: 2022-02-11
广东义发实业股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose an antibacterial and degradable functional film forming process and processing technology for the existing decomposable films in the background technology, which have poor antibacterial performance, low preparation quality, and inability to deal with metal impurities in raw materials. its equipment

Method used

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  • Antibacterial degradable functional film forming processing technology and equipment
  • Antibacterial degradable functional film forming processing technology and equipment
  • Antibacterial degradable functional film forming processing technology and equipment

Examples

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Embodiment 1

[0028] Such as figure 1 As shown, a kind of antibacterial and degradable functional film molding processing technology that the present invention proposes, processing technology comprises the following steps:

[0029] Step 1: In the preparation of film raw materials, antibacterial masterbatches are prepared by mixing quaternary ammonium salts with long-chain alkyl groups into PLA and PBAT, and adding antibacterial materials; the preparation process of antibacterial masterbatches is: long-chain alkyl quaternary ammonium salts Mixing and extruding with the initiator cerium ammonium nitrate and PBAT in extrusion granulation equipment, the temperature is 70°C, the reaction time is 1.5h, and the content of the cerium ammonium nitrate is 0.8%;

[0030] Step 2: Film masterbatch control: According to the required film layer structure requirements, control the type of masterbatch in the feeding hopper;

[0031] Step 3: Masterbatch treatment: before using the multilayer co-extrusion bl...

Embodiment 2

[0035] Such as Figure 2-3As shown, an antibacterial and degradable functional film forming and processing equipment proposed by the present invention, compared with Embodiment 1, the processing equipment of this embodiment includes a die body 1, a base 2 is installed on the bottom of the die body 1, and a base 2 The outer ring is provided with an exhaust fan 3 and a blower 4, and the exhaust fan 3 and the blower 4 are connected with an air duct, and the exhaust fan 3 is also connected with a waste gas exhaust pipe, which is used to discharge the generated waste gas to ensure that the equipment The safety of use, the air guide tube is connected with the base 2, the outer ring of the base 2 is provided with a feeding mechanism 5 along its circumference, there are multiple feeding mechanisms 5, the feeding mechanism 5 includes a feeding hopper 51, An injection molding machine 52 is installed at the bottom of the injection molding machine 52, and a pipe 53 is connected to one sid...

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Abstract

The invention relates to the technical field of film processing, and in particular, relates to an antibacterial degradable functional film forming processing technology and equipment. Aiming at the problems of poor antibacterial property, low preparation quality, incapability of treating metal impurities in raw materials and the like of an existing decomposable film, the invention provides the following technical scheme: the processing technology comprises the following steps: step 1, modifying a film raw material: mixing quaternary ammonium salt with long-chain alkyl into PLA and PBAT in the preparation of the film raw material, and adding an antibacterial material to form an antibacterial master batch; step 2, controlling a film master batch; step 3, carrying out master batch treatment; step 4, using an extrusion system; and step 5, collecting the film. The preparation technological process is complete, a basis is provided for preparation of the film, the preparation process is simple, preparation is convenient and efficient, the feeding speed is controlled when the film is fed, raw material blockage caused by concentrated feeding is avoided, metal impurities in the master batch are adsorbed, it is ensured that the raw materials are clean and free of impurities, the film quality is improved, and the technology is mainly applied to preparation of the film.

Description

technical field [0001] The invention relates to the technical field of film processing, in particular to an antibacterial and degradable functional film forming process and equipment thereof. Background technique [0002] At present, disposable foamed plastic shopping bags and tablecloths are widely used. Although they bring convenience to people's lives, they also cause serious white pollution to the environment. This kind of foamed tableware will go through decades or even go up in the soil. It takes a hundred years to degrade, and it can produce carcinogens such as dioxins after burning. The foam packaging will produce toxins at a temperature of 60°C, which shows how much it will damage people's living environment and health. In response to the above problems, the patent "CN102516605B" proposed "antibacterial and degradable film, production method and application". In this scheme, plant starch is used as the main raw material, which can be completely degraded under natura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/01B29B13/10B29C55/28C08L67/04C08L67/02C08J5/18
CPCB29D7/01B29B13/10B29C55/28C08J5/18C08J2367/04C08J2467/02C08J2367/02C08J2467/04
Inventor 郑烁楠郑泽凯马年方王丽宁郑锐江陈文俊
Owner 广东义发实业股份有限公司
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