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Biodegradable plastic color masterbatch and preparation method thereof

A biodegradable plastic and color masterbatch technology, applied in the chemical industry, can solve the problems of incomplete degradation due to performance degradation, no biodegradable plastic color masterbatch, etc., and achieve the effects of protecting health and the environment, stable color, and good matching

Inactive Publication Date: 2016-03-16
HENAN TIANREN BIOMATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no biodegradable plastic masterbatch
Using ordinary non-degradable plastic masterbatches for coloring makes biodegradable plastics mixed with non-degradable plastic components, which brings the hidden dangers of performance degradation and incomplete degradation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A white columnar, PBAT-specific biodegradable plastic masterbatch, composed of the following components measured by weight percentage: PBAT: 70%, micron-sized SiO 2 : 6%, rutile titanium dioxide pigment: 20%, silane coupling agent: 1.25%, diethylene glycol adipate: 1.35%, oleic acid amide: 1.4%;

[0025] The preparation method of the above-mentioned biodegradable plastic masterbatch comprises the following steps:

[0026] (1) Add each component measured by weight percentage into a high-speed mixer, the speed of the mixer is 700 rpm, the temperature is not higher than 50°C, stir and mix for 20 minutes until uniform, and the mixed material is obtained;

[0027] (2) Put the mixed material obtained in step (1) into a twin-screw extruder, melt and extrude, air-cool and hot-cut to granulate, and the product is obtained.

[0028] Among them, PBAT is a common commercial product of BASF; the aspect ratio of the twin-screw extruder is 42:1, and the speed is 400 rpm; the twin-scr...

Embodiment 2

[0030] A yellow columnar, PLA-specific biodegradable plastic masterbatch, composed of the following components measured by weight percentage: PLA: 65%, micron-sized SiO 2 : 10%, permanent yellow pigment: 19%, silane coupling agent: 2%, diethylene glycol adipate: 2%, oleic acid amide: 2%;

[0031] The preparation method of the above-mentioned biodegradable plastic masterbatch comprises the following steps:

[0032] (1) Add each component measured by weight percentage into a high-speed mixer, the speed of the mixer is 800 rpm, the temperature is not higher than 50°C, stir and mix for 10 minutes until uniform, and obtain the mixed material;

[0033] (2) Put the mixed material obtained in step (1) into a twin-screw extruder, melt and extrude, air-cool and hot-cut to granulate, and the product is obtained.

[0034] Among them, PLA is a common commercially available product of NatureWorks; the aspect ratio of the twin-screw extruder is 48:1, and the rotating speed is 450 rpm; the t...

Embodiment 3

[0036] A black columnar, PBS-specific biodegradable plastic masterbatch, composed of the following components measured by weight percentage: PBS: 75%, micron-sized CaCO 3 : 4%, carbon black pigment: 15%, silane coupling agent: 1.9%, glycerin: 2%, erucamide: 2.1%;

[0037] The preparation method of the above-mentioned biodegradable plastic masterbatch comprises the following steps:

[0038] (1) Add the components measured by weight percentage into a high-speed mixer, the speed of the mixer is 600 rpm, the temperature is not higher than 50°C, stir and mix for 30 minutes until uniform, and obtain the mixed material;

[0039] (2) Put the mixed material obtained in step (1) into a twin-screw extruder, melt and extrude, air-cool and hot-cut to granulate, and the product is obtained.

[0040] Among them, PBS is an ordinary commercial product of Jiangsu Ruisheng Company; the aspect ratio of the twin-screw extruder is 48:1, and the speed is 350 rpm; the twin-screw extruder is evenly d...

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Abstract

The invention discloses biodegradable plastic color masterbatch and a preparation method thereof. The biodegradable plastic color masterbatch is prepared from, by weight, 60%-85% of biodegradable plastic carriers, 0-15% of filler, 5%-25% of pigment and 2%-9% of auxiliaries, all the components are weighed and added into a mixer, after even mixing is conducted, the mixed components are added into a screw extruder, melt extrusion is conducted, cooling and granulating are conducted, and the biodegradable plastic color masterbatch is obtained, wherein the biodegradable plastic carriers are one or two or more of polylactic acid, poly adipate-butylene terephthalate and poly butylenes succinate, the filler is silicon dioxide and / or calcium carbonate, the pigment is inorganic pigment or organic pigment, and the auxiliaries are composed of a coupling agent, a plasticizer and a lubricating agent. The prepared color masterbatch is excellent in physicochemical property, the situation that nondegradable plastic components are mixed in biodegradable plastics is avoided, and the problems that time and labor of coloring of the biodegradable plastics are consumed, and the pigment affects the biodegradable plastic performance are solved.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a biodegradable plastic color masterbatch and a preparation method thereof. Background technique [0002] With the continuous development of the plastics industry, the demand for plastics has also increased significantly. Since plastics are not easy to decompose and recycle, their wastes also become harmful garbage, polluting the environment. [0003] Biodegradable plastics can be widely used in various industries due to their good degradability. When plastic products are colored by pigment toner, the pigment is generally in powder form, and it is easy to fly when added and mixed. After being inhaled by the human body, it will affect the health of the operator and is not conducive to the cleanliness of the environment; users use toner to color bio-based degradable plastics , Time-consuming and labor-intensive, uneven color, and cause material performance degradation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08K13/02C08K3/36C08K3/22C08K5/11C08K5/20C08K3/26C08K3/04
CPCC08K13/02C08K3/04C08K3/22C08K3/26C08K3/36C08K5/11C08K5/20C08K2003/2241C08K2003/265C08L67/02C08L2201/06C08L2310/00C08L67/04
Inventor 冒彬汤永彬刘俊峰
Owner HENAN TIANREN BIOMATERIAL RES INST
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