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Biodegradable color master batch and preparation method thereof

A technology of biodegradation and color masterbatch, applied in the field of biodegradable color masterbatch and its preparation, can solve the problems of affecting the biodegradability of degradable plastics, affecting the dispersibility of degradable plastics, uneven color distribution of products, etc. Coloring effect, the effect of increasing plasticity

Active Publication Date: 2020-12-29
QINGDAO ZHOUSHI PLASTIC PACKAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some degradable plastics that have requirements for appearance color, a certain amount of color masterbatch needs to be added to them to achieve the purpose of coloring. However, most of the color masterbatches are currently based on traditional polymers (such as polyethylene) as carriers, but this The poor compatibility of color masterbatch and degradable plastics will affect its dispersion in degradable plastics, resulting in uneven color distribution of products, and the addition of traditional color masterbatches will also affect the biodegradability of degradable plastics

Method used

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  • Biodegradable color master batch and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0042]Preparation example 1 of modified titanium dioxide: ① Take calcium silicate, grind and siev it to obtain calcium silicate powder with a particle size of 1-5μm; add 0.1kg of silane to 10kg calcium silicate powder Coupling agent KH570 and 3kg lithium silicate were ground at a speed of 2000r / min for 4h to obtain a silicate mixture;

[0043]②Take the rutile type titanium dioxide, grind it and sieving it to obtain titanium dioxide fine powder with a particle size of 1-5μm; add 0.5kg polycarboxylate sodium salt dispersant and 200kg water to 10kg titanium dioxide fine powder. / min speed, stirring for 30min, obtain titanium dioxide slurry;

[0044]③Add 1-3kg of silicate mixture to the titanium dioxide slurry, stir for 30min at a speed of 2000r / min, and stand for 4-6h at a temperature of 70-80℃ to obtain a titanium dioxide-silicate slurry;

[0045]④Add 30kg, 5wt% aluminum sulfate solution to the titanium dioxide-silicate slurry within 1h. After the dripping is completed, adjust the pH to 7.0, a...

preparation example 2

[0047]Preparation example 2 of modified titanium dioxide: ① Take calcium silicate, grind and siev it to obtain calcium silicate powder with a particle size of 1-5μm; add 0.15kg KH570 to 10kg calcium silicate powder And 4kg lithium silicate, after grinding it at 3000r / min for 3h, a silicate mixture is obtained;

[0048]②Take the rutile titanium dioxide powder, grind it and sieving it to obtain titanium dioxide powder with a particle size of 1-5 μm; add 0.75 kg polycarboxylate sodium salt dispersant and 250 kg of water to 10 kg of titanium dioxide powder. / min speed, stirring for 30min, obtain titanium dioxide slurry;

[0049]③Add 2kg of silicate mixture to the titanium dioxide slurry, stir for 30min at a speed of 2000r / min, and stand for 5h at a temperature of 75°C to obtain a titanium dioxide-silicate slurry;

[0050]④Drop a 35kg, 5wt% aluminum sulfate solution into the titanium dioxide-silicate slurry within 1h. After the dripping is completed, adjust the pH to 7.2 and let stand at room tem...

preparation example 3

[0052]Preparation Example 3 of Modified Titanium Dioxide: ① Take calcium silicate, grind and siev it to obtain calcium silicate powder with a particle size of 1-5μm; add 0.1kg of silane to 10kg calcium silicate powder Coupling agent KH570, 0.1kg silane coupling agent KH791 and 5kg lithium silicate were ground at a speed of 4000r / min for 2h to obtain a silicate mixture;

[0053]②Take the rutile titanium dioxide powder, grind it and sieving it to obtain titanium dioxide powder with a particle size of 1-5μm; add 1kg polycarboxylate sodium salt dispersant and 300kg water to 10kg of titanium dioxide powder, at a rate of 2000r / Min. speed, stirring for 30 minutes to obtain titanium dioxide slurry;

[0054]③Add 3kg of silicate mixture to the titanium dioxide slurry, stir for 30min at a speed of 2000r / min, and stand still for 6h at a temperature of 80°C to obtain a titanium dioxide-silicate slurry;

[0055]④Drop 40kg, 5wt% of aluminum sulfate solution into the titanium dioxide-silicate slurry within...

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Abstract

The invention relates to the field of plastic additives, and particularly discloses a biodegradable color master batch and a preparation method thereof. The biodegradable color master batch is prepared from the following raw materials: poly(butyleneadipate-co-terephthalate), polycaprolactone, a pigment, a plasticizer, a dispersing agent and a compatilizer, wherein the plasticizer is prepared frommicrocrystalline cellulose, ethyl cellulose, tributyl citrate and castor oil in a weight ratio of 3-5:2-4: 1-2: 1-2; the preparation method comprises the following steps: premixing polycaprolactone and the plasticizer, adding the poly(butyleneadipate-co-terephthalate), and carrying out melting, extrusion and granulation to obtain a PBAT premix; and mixing the PBAT premix, the pigment, the dispersing agent and the compatilizer, and carrying out melting, extruding and granulating. The biodegradable color master batch disclosed by the invention can be used for dyeing degradable plastic products,and has the advantages of degradability and high dispersity in the plastic products.

Description

Technical field[0001]This application relates to the field of plastic additives, more specifically, it relates to a biodegradable color masterbatch and a preparation method thereof.Background technique[0002]Masterbatch, also known as color masterbatch and plastic masterbatch, is a plastic colorant made of a high proportion of pigments or dyes and thermoplastic resins after a good dispersion; for special masterbatch, because the same resin as plastic products is used As a carrier, it has good compatibility with plastic resins, and is easier to disperse in plastic products after heating and melting, which is beneficial to improve the color stability of plastic products.[0003]Under normal circumstances, the color masterbatch is composed of pigments, carriers, dispersants and additives; in the prior art, the patent application document with application number 200810122122.2 discloses a universal white masterbatch and its preparation method. This universal white The masterbatch is compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L1/04C08L1/28C08L91/00C08L51/06C08K13/06C08K5/11C08K3/22C08K3/04C08K5/00C08K9/10C08K9/02C08K9/04C08J3/22
CPCC08J3/226C08J2367/02C08J2467/02C08J2467/04C08J2401/04C08J2401/28C08J2491/00C08J2451/06C08K13/06C08K5/11C08K2003/2241C08K3/04C08K5/0041C08K9/10C08K9/02C08K9/04C08K9/08Y02W90/10
Inventor 李双利周锐
Owner QINGDAO ZHOUSHI PLASTIC PACKAGE
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