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Antibacterial and antistatic additive for PE and preparation method thereof

An additive, antibacterial and antistatic technology, which is applied in the field of antibacterial and antistatic additives for PE and its preparation, can solve the problems of unsustainable antistatic effect and easy to be affected by ambient temperature and humidity, and achieve excellent antistatic, improved antibacterial performance, Good compatibility and dispersion effect

Active Publication Date: 2022-05-13
山东亚新塑料包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing new antistatic agents in the domestic market are mainly surfactants, the antistatic effect is not durable, and they are easily affected by ambient temperature and humidity, etc.

Method used

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  • Antibacterial and antistatic additive for PE and preparation method thereof
  • Antibacterial and antistatic additive for PE and preparation method thereof
  • Antibacterial and antistatic additive for PE and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step (1) Dissolve the mixture of 1.2mol methoxy-heptaethylene glycol-propionic acid (B), 1.2mol dicyclohexylcarbodiimide and 2wt% 4-dimethylaminopyridine in 10mol N,N- Dimethylformamide is placed in a constant pressure dropping funnel, slowly added dropwise to N,N-dimethylformamide containing 1mol guanidine (A), at room temperature, magnetically stirred for 10h, left to stand, filtered, and reduced pressure distillation, vacuum drying, to obtain the intermediate product I (IR: 1648cm -1 : the presence of -C=O of the amide bond; 3318cm -1 、1625cm -1 :-NH exists);

[0036] Step (2) Dissolve 1 mol I and 1.2 mol maleic anhydride (C) in an organic solvent, heat and stir at 40°C for 5 hours and then cool down, distill the reaction product under reduced pressure, vacuum-dry the crude product, and use methanol / ether Recrystallize from a mixed solvent with a volume ratio of 1 / 1 to obtain the intermediate product II modified by maleic anhydride (IR: 1648cm -1 : the presence o...

specific Embodiment 2-6

[0038] Specific embodiment 2-6, other are with specific embodiment 1, difference is following table:

[0039]

[0040] The antibacterial and antistatic agent obtained in specific example 1 is used as the basic material of the application example, which is added to PE pellets and blown into a film to obtain an antibacterial and antistatic PE film.

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Abstract

The invention belongs to the field of plastic processing aids. The invention relates to an antibacterial and antistatic additive for PE and a preparation method thereof. The method uses methoxy-heptapolyethylene glycol-propionic acid, guanidine, maleic anhydride and polyethylene as raw materials to carry out multi-step amidation reaction. The new type of antibacterial and antistatic agent obtained by mixed extrusion and blow molding effectively improves the defects of existing antistatic agents such as durability and non-bacteria resistance, and at the same time has certain effects of flame retardancy and plasticization, prolonging its service life. It enriches its application fields and can be used as a food packaging film.

Description

technical field [0001] The invention relates to an antibacterial and antistatic additive for PE and a preparation method thereof. The invention belongs to the field of plastic processing aids. Background technique [0002] Due to its rich raw material resources, moderate price, stable and reliable production process, and superior product comprehensive performance, its application range is expanding day by day, especially in the packaging field. It occupies the first place in general-purpose plastic packaging materials. With the in-depth development of my country's modernization, various plastic packaging materials emerge in an endless stream, and their demand is also increasing. Among them, PE packaging film accounts for more than 30% of the total consumption of PE materials. More than one million tons of PE materials are consumed every year. However, due to the non-polar molecular structure of polyethylene materials, the molecular chains formed by its covalent bonds can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/32C08F110/06C08J5/18C08L23/06C08L23/36C07C277/08C07C279/22
CPCC08F8/32C08J5/18C07C277/08C08J2323/06C08J2423/36C08F110/02C07C279/22
Inventor 霍艳苓
Owner 山东亚新塑料包装有限公司