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Biodegradation time controlled plastic film and preparation method thereof

A biodegradable, plastic film technology, applied in flat products, other household appliances, applications, etc., can solve the problem of uncontrollable degradation time of biodegradable materials, and achieve the effects of controllable degradation time, simple production process and broad market prospects.

Active Publication Date: 2012-03-21
FUJIAN HENGAN HYGIENE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of uncontrollable degradation time of biodegradable materials in the prior art, the present invention is proposed

Method used

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  • Biodegradation time controlled plastic film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Place 70wt% of PBS (polybutylene succinate), 26wt% of PLA (polylactic acid), 1wt% of dispersant, and 1wt% of coupling agent in a high-speed mixer (rotating speed 1600rpm, temperature 125°C) and stir After 10 minutes, add 1.5wt% soft antibacterial agent and 0.5wt% antioxidant, and mix and stir for 5 minutes. Then it is evenly fed into a twin-screw extruder for extrusion, pelletizing, drying, and packaging.

[0040] The manufactured particles are then blown or cast into films.

Embodiment 2

[0042] The Ecoflex of 50wt% BASF, 25wt% TPS (thermoplastic starch), 7wt% PLA (polylactic acid) and 15wt% plasticizer were placed in a high-speed mixer (rotating speed 1800rpm, temperature 130°C) and stirred for 10 minutes, then Add 2.5wt% soft antibacterial agent and 0.5wt% antioxidant, mix and stir at high speed for 5 minutes. Then it is evenly fed into a twin-screw extruder for extrusion, pelletizing, drying, and packaging.

[0043] The manufactured particles are then blown or cast into films.

Embodiment 3

[0045] Place the dispersant of 65wt% PBS (polybutylene succinate), 15%PCL, 15wt% PHBV (polyhydroxybutyrate valeric acid copolymer) and 1wt% high-speed mixer (rotating speed 1800rpm, temperature 130 ℃) after stirring for 10 minutes, then add 3.5wt% soft antibacterial agent and 0.5wt% antioxidant and stir at high speed for 5 minutes. Then it is evenly mixed and then fed into a twin-screw extruder for extrusion, pelletizing, drying and packaging.

[0046] The manufactured particles are then blown or cast into films.

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Abstract

The invention discloses a biodegradation time controlled plastic film and a preparation method thereof. The biodegradation time controlled plastic film can be prepared through a blow molding method or a tape casting method; and the biodegradation time controlled plastic film mainly comprises a degradative resin and a time controlled soft antibacterial agent. The soft antibacterial agent is a long-chain quaternary ammonium compound consisting of three parts, namely long-chain alkyl, an easily-adjusted spacer and a terminal polar group (quaternary ammonium salt), and the inactivation half-life thereof at the temperature of 60 DEG C is at least more than 3h.

Description

technical field [0001] The invention relates to a plastic film with controllable biodegradation time and a preparation method thereof. Background technique [0002] With the development of the country and the gradual improvement of people's living standards, people's awareness of health and environmental protection is increasing. Creating a comfortable, clean, antibacterial and mildew-proof, and preventing the spread of diseases in living, learning and working environments is what people are passionate about. Automatic biodegradation of product waste without polluting the environment is also an urgent requirement of the current international environmental protection cause. However, while people are improving their own living environment, favorable conditions have also been created for the reproduction and growth of microorganisms and bacteria. Since most plastics derived from petroleum are not biodegradable, so-called "white pollution" is increasing, putting enormous press...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B7/28C08L101/16C08K5/20C08K5/3432C08K5/19B29C41/00B29L7/00B29C49/00C08K13/02
Inventor 张富山孙晓丽
Owner FUJIAN HENGAN HYGIENE MATERIAL
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