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Preparation method of biomass antibacterial PP master batch and product and application thereof

An antibacterial masterbatch, biomass technology, applied in the fields of botanical equipment and methods, chemicals for biological control, applications, etc., can solve the problem that biomass materials cannot be processed at high temperature, and achieve good market value and market value. Wide application and low price

Active Publication Date: 2018-01-05
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the current problem that biomass materials cannot be processed at high temperature, the purpose of the present invention is to provide a method for preparing biomass antibacterial PP masterbatch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Biomass antibacterial agent preparation: take the dry fruits, leaves and roots of the ten major contributions, mix them according to the ratio of fruit: leaf: root = 1:2:3, grind them to 500 nm with dry grinding equipment, and then mix them The powder is evenly dispersed in ethanol and atomized with an atomizing device; the top ten merit sprays are sequentially mixed with 1 wt% of 1,3-diamino-2-hydroxypropane-N, N, N ， , N ， -Tetraacetic acid, 5 wt% calcium chloride, and 3 wt% ammonium carbonate atomized solution were reacted for ten minutes each, dried and collected at 70°C to obtain a biomass antibacterial agent.

[0022] Masterbatch preparation: take 700 g isotactic polypropylene, 0.25 g antioxidant tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 0.25 g antioxidant tri[ 2,4-di-tert-butylphenyl] phosphite and 50 g of liquid paraffin are put into a high-mixer and mixed, and taken out for subsequent use; add the above-mentioned biomass...

Embodiment 2

[0025] Biomass antibacterial agent preparation: take the dried fruits, leaves and roots of the top ten contributions, mix them according to the ratio of fruit:leaf:root = 1:3:4, grind them to 500 nm with dry grinding equipment, and then mix them The powder is evenly dispersed in ethanol and atomized with an atomizing device; the Shidagonggong spray is sequentially reacted with 2 wt% m-chloroperbenzoic acid, 6 wt% calcium nitrate, and 4 wt% ammonia atomized solution for ten minutes each, The biomass antibacterial agent can be obtained by drying and collecting at 70°C.

[0026] Masterbatch preparation: 800 g atactic polypropylene, 0.3 g tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol, 0.6 g tris[2,4-di-tert-butyl phenyl] phosphite and 25 g of liquid paraffin, put it into a high-mixer for mixing, and take it out for later use; add the above-mentioned biomass antibacterial agent mixture, continue mixing to obtain an antibacterial mixture, and obtain an a...

Embodiment 3

[0028] Biomass antibacterial agent preparation: take dried fruits, leaves, and roots of the top ten contributions, mix them according to the ratio of fruit:leaf:root=1:5:7, grind them to 500 nm with dry grinding equipment, and then mix them The powder is uniformly dispersed in ethanol and atomized with an atomizing device. The top ten merit sprays were reacted with 3 wt% 1,8-diazabicyclo[4.3.0]undec-7-ene, 7 wt% calcium sulfate, and 5 wt% ammonium chloride atomized solution in sequence After ten minutes, dry and collect at 70°C, the biomass antibacterial agent can be obtained.

[0029] Masterbatch preparation: 850 g isotactic polypropylene, 0.5 g tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol, 1.5 g tris[2,4-di-tert-butyl phenyl] phosphite and 10 g of liquid paraffin, put into a high mixer for mixing, take out for later use; add the above-mentioned biomass antibacterial agent mixture, continue to mix to obtain an antibacterial mixture, and obtain a...

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Abstract

The invention provides a preparation method of biomass antibacterial PP master batch and a product and application thereof. The biomass antibacterial PP master batch contains blend components: matrixresin, a biomass antibacterial agent, 1-5 wt% of a lubricant and 0.05-0.2 wt% of a composite antioxidant. Main ingredients of the biomass antibacterial agent are fruit, leaf and root of dried Chinesemahonia at the ratio of fruit to leaf to root being 1: 2-5: 3-7. The biomass materials with an antibacterial effect are mineralized by the use of amorphous mineral, and account for 10-30 wt% of mass of the master batch. The preparation method of the invention comprises the following steps: firstly placing the matrix resin, the lubricant and the biomass antioxidant into a high-speed mixer and stirring uniformly; adding the biomass antibacterial agent, mixing at high speed until the materials are uniform, and prepared by a twin-screw extruder to obtain the master batch. The antibacterial masterbatch prepared by the above method has high antibacterial rate, is used for antibacterial modification of polypropylene, and helps solve the problem that a biomass antibacterial agent cannot undergo high-temperature processing.

Description

technical field [0001] The invention relates to a preparation method for polymer composite functional materials, in particular to a biomass antibacterial PP masterbatch and its preparation method and application. Background technique [0002] With the development of society, people pay more and more attention to the field of life and health, and polypropylene is widely used in people's daily life, such as water cups, lunch boxes, water pipes, etc. focus. [0003] Currently commonly used antibacterial agents are divided into inorganic antibacterial agents, organic antibacterial agents and natural antibacterial agents. Inorganic antibacterial agents usually refer to inorganic substances such as silver, copper, zinc, etc., which mainly use their oxidative activity and free ions to kill fungi. Among them, silver-based substances have the strongest bactericidal ability, but the presence of silver ions is slightly toxic, too active, and easy to change color. and other problems, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L91/06C08K5/134C08K5/526C08K5/00C08J3/22A01N25/08A01N65/08A01P1/00
Inventor 何丹农张现林琳陈超王岩岩金彩虹
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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