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Preparation method and application of pearl wool material for medical packaging

A technology of pearl cotton and medicine, which is applied in the field of packaging materials to achieve the effects of improved performance, good sealing performance, and strong antibacterial properties

Inactive Publication Date: 2018-11-27
苏州国立塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many pharmaceutical packaging materials in the pharmaceutical field require high corrosion resistance, airtightness and antibacterial properties. Traditional pearl cotton materials are difficult to achieve and cannot well meet the requirements of pharmaceutical product packaging.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Put 3 parts of attapulgite and 2 parts of aluminum hydroxide into a ball mill, add an appropriate amount of absolute ethanol to carry out wet ball milling, the speed of the ball mill is 800 rpm, and the ball milling time is 180 minutes to obtain a ball milling mixed slurry;

[0021] (2) Put the ball milling mixture slurry obtained in step (1) together with 8 parts of bamboo fiber and 12 parts of polyvinyl acetate into an ultrasonic disperser, add an appropriate amount of distilled water, stir evenly, and perform ultrasonic dispersion treatment. The ultrasonic frequency is 75 kHz, the ultrasonic power is 90 W, and the ultrasonic dispersion time is 25 minutes to obtain the preliminary mixture;

[0022] (3) Put 80 parts of low-density polyethylene, 20 parts of neopentyl glycol diacrylate, and 18 parts of hexamethylenetetramine into a mixer for one mixing at a temperature of 120°C. The time is 80 minutes, and then 10 parts of dibenzylidene sorbitol, 7 parts of sodium bi...

Embodiment 2

[0027] (1) Put 4 parts of attapulgite and 3 parts of aluminum hydroxide into a ball mill, add an appropriate amount of absolute ethanol to carry out wet ball milling, the speed of the ball mill is 850 rpm, and the ball milling time is 190 minutes to obtain a ball milling mixed slurry;

[0028] (2) Put the ball milling mixture slurry obtained in step (1) together with 9 parts of bamboo fiber and 14 parts of polyvinyl acetate into an ultrasonic disperser, add an appropriate amount of distilled water, stir evenly and perform ultrasonic dispersion treatment, the ultrasonic frequency is 75 kHz, the ultrasonic power is 90 W, and the ultrasonic dispersion time is 30 minutes to obtain the preliminary mixture;

[0029] (3) Put 90 parts of low-density polyethylene, 25 parts of neopentyl glycol diacrylate, and 20 parts of hexamethylenetetramine into a mixer for one mixing at a temperature of 135°C. The time is 90 minutes, and then 15 parts of dibenzylidene sorbitol, 8 parts of sodium bic...

Embodiment 3

[0034] (1) Put 5 parts of attapulgite and 4 parts of aluminum hydroxide into a ball mill, add an appropriate amount of absolute ethanol to carry out wet ball milling, the speed of the ball mill is 900 rpm, and the ball milling time is 200 minutes to obtain a ball milling mixed slurry;

[0035] (2) Put the ball-milling mixture slurry obtained in step (1) together with 10 parts of bamboo fiber and 16 parts of polyvinyl acetate into an ultrasonic disperser, add an appropriate amount of distilled water, stir evenly, and perform ultrasonic dispersion treatment. The ultrasonic frequency is 75 kHz, the ultrasonic power is 90 W, and the ultrasonic dispersion time is 35 minutes to obtain the preliminary mixture;

[0036] (3) Put 100 parts of low-density polyethylene, 30 parts of neopentyl glycol diacrylate, and 22 parts of hexamethylenetetramine into a mixer for one mixing at a temperature of 150°C. The time is 100 minutes, and then 20 parts of dibenzylidene sorbitol, 9 parts of sodium...

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PUM

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Abstract

The invention discloses a preparation method and application of a pearl wool material for medical packaging. The preparation method comprises the following steps of: carrying out wet ball milling on attapulgite, aluminum hydroxide and absolute ethyl alcohol, then carrying out ultrasonic dispersion on ball-milled mixed slurry, natural bamboo fibers and polyvinyl acetate to obtain an initial mixture, meanwhile carrying out primary mixing on low density polyethylene, neopentyl glycol diacrylate and hexamethylenamine, and adding dibenzylidene sorbitol, sodium bicarbonate and an activating agent for secondary mixing to obtain a secondary mixture, finally, causing the initial mixture and the secondary mixture to react with an antistatic agent and a foaming agent at a high temperature and a highpressure, carrying out extrusion molding and cooling to obtain the finished material. The prepared pearl wool material has a good sealing property and a strong antibacterial property; and as a packaging material, the pearl wool material has good application prospect.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a preparation method and application of pearl cotton materials used for medical packaging. Background technique [0002] EPE is a non-cross-linked closed-cell structure, which is composed of low-density polyethylene (LDPE) through physical foaming to produce countless independent cells. It has many advantages such as shockproof, sound insulation, heat preservation, water and moisture resistance, good plasticity and toughness. Following the traditional polystyrene foam EPS and polyurethane foam EPU, a new generation of foam materials is widely used in electronic appliances, instruments and meters, computers, audio, medical equipment, industrial control chassis, hardware lighting, handicrafts, glass, ceramics, home appliances, spraying , furniture, furniture, wine and resin and other high-end fragile gift packaging. However, many pharmaceutical packaging materials in t...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L31/04C08L97/02C08K13/02C08K3/34C08K3/22C08K5/103C08K3/26C08J9/10
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/0085C08J9/0095C08J9/103C08J9/105C08J2203/04C08J2323/06C08J2431/04C08J2497/02
Inventor 严国伟
Owner 苏州国立塑料制品有限公司
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