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Antibacterial and antiviral polymer compositions, polymer blend, and film product

A polymer and composition technology, applied in the field of functional polymer materials, can solve the problems of weak antibacterial and antiviral properties, and achieve the effects of excellent antibacterial, avoiding uneven dispersion and good biodegradability

Pending Publication Date: 2021-09-21
河南功能高分子膜材料创新中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the antibacterial and antiviral properties of degradable packaging film substrates are relatively weak. How to combine the two is one of the problems that need to be studied urgently.

Method used

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  • Antibacterial and antiviral polymer compositions, polymer blend, and film product
  • Antibacterial and antiviral polymer compositions, polymer blend, and film product
  • Antibacterial and antiviral polymer compositions, polymer blend, and film product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 Preparation of biodegradable antibacterial and antiviral functional films

[0039]Step 1: Dissolve 6 g of antibacterial agent (the ratio of antimicrobial peptide to monolauric acid monoglyceride is 1:9, the antimicrobial peptide uses the product of Peptide 601125, the molecular weight is 2202.5, and the purity is ≥98%) in 500 ml of ethanol, magnetically Stir and heat to 55°C, add 70 g of calcium carbonate, stir well, cool to room temperature, and filter under reduced pressure to obtain a filter cake, which is powdered with a mortar, then add 500 ml of acetic acid solution with a mass percentage of 30%, and heat Fully dissolve at 60°C, quickly add 10 g of antioxidant 1010, 30 g of coupling agent KH550, and 5 g of compatibilizer (the ratio of ADR-4368 to isocyanate IPDI is 3:2) under the condition of mechanical stirring at 2000 rpm, Subsequently, the pH of the solution was adjusted to 7 with NaOH, filtered under reduced pressure, dried in a vacuum oven for 24 h,...

Embodiment 2

[0043] Embodiment 2 Preparation of biodegradable antibacterial and antiviral functional films

[0044] Step 1: Dissolve 3 g of antibacterial agent (the ratio of antimicrobial peptide to monolauric acid monoglyceride is 3:7, and the type of antimicrobial peptide is the same as in Example 1) in 500 ml of ethanol, heat to 55°C with magnetic stirring, and add 30 g Calcium carbonate and 10 g of lignin were stirred thoroughly, cooled to room temperature, and filtered under reduced pressure to obtain a filter cake, which was made into a powder in a mortar, then 500 ml of acetic acid solution with a mass percentage of 30% was added, and heated to 60°C to fully Dissolve, quickly add 5 g antioxidant 1076, 20 g coupling agent KR-TTS, 10 g compatibilizer (isocyanate TDI) under the condition of mechanical stirring at 1500 rpm, then adjust the pH of the solution to 7 with NaOH, pump under reduced pressure After filtering, put it in a vacuum oven to dry for 24 h, take it out and pulverize it...

Embodiment 3

[0048] Example 3 Preparation of biodegradable antibacterial and antiviral functional films

[0049] Step 1: Dissolve 5 g of antibacterial agent (the ratio of antimicrobial peptide to monolauric acid monoglyceride is 1:1, and the type of antimicrobial peptide is the same as in Example 1) in 500 ml of isopropanol, heat to 55°C with magnetic stirring, and add 30 g of calcium carbonate and 20 g of silicon dioxide were stirred thoroughly, cooled to room temperature, and filtered under reduced pressure to obtain a filter cake, which was powdered in a mortar, and then 500 ml of acetic acid solution with a mass percentage of 30% was added and heated to Fully dissolve at 60°C, quickly add 8 g of antioxidant 1010, 25 g of coupling agent KH550, and 8 g of compatibilizer (the ratio of AX8900 to isocyanate MDI is 3:2) under the condition of mechanical stirring at 1500 rpm, followed by NaOH The pH of the solution was adjusted to 7, filtered under reduced pressure, dried in a vacuum oven for...

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Abstract

The invention provides an antibacterial and antiviral polymer composition. The composition comprises the following components in parts by weight: 20-100 parts of PBAT, 5-30 parts of PLA and 10-50 parts of a coated auxiliary agent. The coated auxiliary agent comprises an antibacterial agent and a coating layer coating the antibacterial agent, and the coating layer comprises a filler, an antioxidant, a coupling agent and a compatilizer. The invention also provides an antibacterial and antiviral polymer blend and a film product. According to the polymer composition as well as the polymer blend and the film product prepared from the polymer composition provided by the invention, the antibacterial agent, the auxiliary agent and other components are prepared into a coating type, so that the obtained polymer product has excellent antibacterial and antiviral functions, meanwhile, keeps good biodegradability, has wider application range, and can be used in multiple industries and fields of mulching films, food packaging, logistics packaging and the like.

Description

technical field [0001] The invention relates to the field of functional polymer materials, in particular to a polymer composition with antibacterial and antiviral functions, as well as a polymer blend and a film product prepared from the polymer composition. Background technique [0002] With the implementation of the "Plastic Ban" policy, many countries and companies are committed to the development of degradable materials, but currently there are no alternatives to mass-produced degradable materials that can be used in flexible packaging. The biodegradable plastics that have been developed mainly include: chemically synthesized polylactic acid (PLA), polyadipate / butylene terephthalate (PBAT), aliphatic polyester (PBS), polyvinyl alcohol (PVA ), polyhydroxyalkanoate (PHA) synthesized by microorganisms, etc. [0003] In addition, in the field of food production, consumers have higher and higher requirements for product safety and hygiene, so it is necessary to continuously ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/04C08L77/00C08K9/10C08K5/103C08J5/18
CPCC08L67/02C08J5/18C08J2367/02C08J2467/04C08L2203/16C08L67/04C08L77/00C08K9/10C08K5/103
Inventor 聂夕冉闫银凤袁永浩李丽丽周宏涛黄晓谨
Owner 河南功能高分子膜材料创新中心有限公司
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