Antibacterial breathable film capable of being composted and degraded as well as a preparation method and application of antibacterial breathable film

A technology of compostable degradable and breathable membrane, which is applied in the field of antibacterial and compostable degradable breathable membrane and its preparation, which can solve the problems of difficulty in ensuring the quality consistency of the breathable membrane, slow heating without effect, and small skin air permeability, etc., to reduce The number of times of mold cleaning, the improvement of surface appearance, and the effect of ensuring shelf life

Pending Publication Date: 2021-11-23
合诚技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the breathable membranes filled with ultra-fine fillers on the market generally have the problem of large deviations in air permeability at different positions in the vertical and horizontal directions. Compared with the median air permeability of the film, the difference in air permeability at different positions is as high as 1000g/m 2 24hr, even greater
The existence of this problem will make it difficult to guarantee the quality consistency of the breathable membra

Method used

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  • Antibacterial breathable film capable of being composted and degraded as well as a preparation method and application of antibacterial breathable film
  • Antibacterial breathable film capable of being composted and degraded as well as a preparation method and application of antibacterial breathable film
  • Antibacterial breathable film capable of being composted and degraded as well as a preparation method and application of antibacterial breathable film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Example 1 Preparation of antibacterial and degradable breathable film

[0058] (1) carry out surface coating treatment to nano calcium carbonate (commercially available, average particle size is 50 nanometers) in high-speed mixer with surface modifier to obtain coated calcium carbonate, and the consumption of surface modifier is the total amount of nano calcium carbonate 2.0% (mass percentage) of the amount, the surface modifiers are isopropyl dioleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanate and isopropoxy two (octadecyloxy) aluminum ( The ratio of the two is a mass ratio of 1:1, wherein the isopropoxybis(octadecyloxy)aluminum is prepared according to Example 1 of the patent application document "CN85102942-New Type Aluminum System Coupling Agent"). The processing conditions were as follows: the rotational speed was 5000 r / min, the processing temperature was 100° C., and the processing time was 40 min.

[0059] (2) superfine calcium carbonate (commercial...

Embodiment 2

[0065] (1) carry out surface coating treatment to nano calcium carbonate (commercially available, average particle size is 150 nanometers) in a high-speed mixer with a surface modifier to obtain coated calcium carbonate, and the consumption of the surface modifier is the total amount of calcium carbonate 0.5% (mass percent), the surface modifier is bis(dioctyloxypyrophosphate) ethylene titanate and isopropoxybis(dodecyltoluenesulfonyloxy)aluminum (isopropyl) The oxybis(dodecyltoluenesulfonyloxy)aluminum was prepared according to Example 5 of the patent application document "CN85102942-New Type Aluminum System Coupling Agent"), and the ratio of the two was 2:1. The processing conditions were as follows: the rotational speed was 3000 r / min, the processing temperature was 120° C., and the processing time was 20 min.

[0066] (2) superfine calcium carbonate (commercially available, with an average particle size of 1.0 μm) is subjected to surface coating treatment in a high-speed m...

Embodiment 3

[0072] (1) carry out surface coating treatment to nano calcium carbonate (commercially available, average particle size is 100 nanometers) in a high-speed mixer with a surface modifier to obtain coated calcium carbonate, and the consumption of the surface modifier is the total amount of calcium carbonate 1.5% (mass percent), the surface modifier is bis(dioctyloxypyrophosphate) ethylene titanate and isopropoxybis(octadecyloxy)aluminum, and the ratio of the two is 2: 1. The processing conditions were as follows: the rotational speed was 4000 r / min, the processing temperature was 100 °C, and the processing time was 30 min.

[0073] (2) Surface coating treatment of ultrafine calcium carbonate (particle size of 5.0 μm) with surface modifier lauric acid and myristic acid (mass ratio of 1:1) in a high-speed mixer to obtain coated carbonic acid Calcium, the amount of surface modifier is 1.0% (mass percent) of the total calcium carbonate. The processing conditions were as follows: th...

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Abstract

The invention discloses an antibacterial breathable film capable of being composted and degraded as well as a preparation method and application of the antibacterial breathable film. The breathable film comprises biodegradable plastic, inorganic filler subjected to surface treatment, a macromolecular coupling agent of a bio-based carrier, a dispersing aid, an antibacterial master batch, an antioxidant and a fluorine-containing polymer processing aid. The uniformity of the air permeability (water vapor permeability) of the degradable breathable film can be effectively improved by compounding the nano calcium carbonate and the superfine calcium carbonate, and the prepared breathable film is completely degraded within 3-6 months in a compost state, does not cause any pollution to the environment, and has the social benefits of low carbon, environmental protection, reduction of environmental pollution and the like; and under the storage conditions of drying, moisture-proof sealing and normal temperature, the shelf life of three years can be ensured.

Description

technical field [0001] The invention belongs to the technical field of plastic modification, and particularly relates to an antibacterial, compostable and degradable breathable film and a preparation method and application thereof. Background technique [0002] Breathable membrane, also known as waterproof and breathable microporous membrane, is a new type of polymer material developed in the 1990s. In daily life, breathable film (waterproof breathable film) is more and more widely used in medical hot compress products such as warm palace stickers, moxibustion stickers, eye mask care, etc., medical protective products such as medical protective clothing, protective pads, isolation gowns, disposable Sex sheets and other clinical medical consumables, as well as personal hygiene protection products such as women's sanitary napkins, baby diapers, adult diapers and other disposable consumables. At present, the breathable film products on the market are generally based on polyole...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L51/08C08L101/04C08K9/04C08K3/26C08J5/18
CPCC08J5/18C08J2367/04C08J2367/02C08J2467/04C08J2467/02C08J2451/08C08J2400/102C08K2003/265C08K2201/014C08J2300/16Y02W90/10
Inventor 谢怀兴莫兹冠周开德徐伟容土光邱慧君张宇诸泉蒋文真
Owner 合诚技术股份有限公司
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