Plastic master batch capable of being fully degraded by environmental organisms, and preparation method thereof

A technology that degrades plastics and is all-biological. Applied in the field of plastics, it can solve the problems of poor mechanical properties, damage to the ecological environment, and easy aging of plastics, and achieve the effect of stable performance and enhanced mechanical properties.

Inactive Publication Date: 2019-06-18
山东天一生物降解塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, plastics are easy to age, and discarded plastics cannot be degraded naturally for decades or even hundreds of years, leading to the destruction of the ecological environment and threatening the normal life of organisms. This year, degradable plastics have received widespread attention, and various types of plastics that can accelerate degradation have been developed. However, due to the characteristics of the plastic itself, it cannot be completely degraded. The current green plastics have good degradability but poor mechanical properties. Therefore, a fully degradable plastic with stable performance is needed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An environmentally fully biodegradable plastic masterbatch, comprising the following raw materials in parts by weight: 15 parts of polybutylene succinate, 10 parts of polylactic acid, 5 parts of plasticizer, 40 parts of potato starch, 16 parts of banana fiber, 10 parts of wollastonite powder, 8 parts of tetrapolyricinoleic acid ester, 6 parts of sodium tripolyphosphate.

[0020] A method for preparing an environmentally fully biodegradable plastic masterbatch, comprising the following steps:

[0021] (1) Mix wollastonite powder and tetrapolyricinoleic acid ester, grind to 100 mesh, then heat to 60°C, add sodium tripolyphosphate and keep stirring for 1 hour;

[0022] (2) Add 30% water by mass to the potato starch, add banana fiber and stir evenly;

[0023] (3) Mix the product of step (1) and step (2) with polybutylene succinate, polylactic acid and plasticizer, and extrude and granulate at 140°C through a twin-screw extruder to obtain a plastic Masterbatch.

Embodiment 2

[0025] An environmentally fully biodegradable plastic masterbatch, comprising the following raw materials in parts by weight: 18 parts of polybutylene succinate, 14 parts of polylactic acid, 6 parts of plasticizer, 42 parts of potato starch, 17 parts of banana fiber, 11 parts of wollastonite powder, 9 parts of tetrapolyricinoleic acid ester, 7 parts of sodium tripolyphosphate.

[0026] A method for preparing an environmentally fully biodegradable plastic masterbatch, comprising the following steps:

[0027] (1) Mix wollastonite powder and tetrapolyricinoleic acid ester, grind to 115 mesh, then heat to 62°C, add sodium tripolyphosphate and keep stirring for 1.2h;

[0028] (2) Add 35% water by mass to the potato starch, add banana fiber and stir evenly;

[0029] (3) Mix the product of step (1) and step (2) with polybutylene succinate, polylactic acid and plasticizer evenly, extrude and granulate the plastic at 145°C through a twin-screw extruder Masterbatch.

Embodiment 3

[0031] An environmentally fully biodegradable plastic masterbatch, comprising the following raw materials in parts by weight: 20 parts of polybutylene succinate, 15 parts of polylactic acid, 7 parts of plasticizer, 45 parts of potato starch, 18 parts of banana fiber, 12 parts of wollastonite powder, 10 parts of tetrapolyricinoleic acid ester, 8 parts of sodium tripolyphosphate.

[0032] A method for preparing an environmentally fully biodegradable plastic masterbatch, comprising the following steps:

[0033] (1) Mix wollastonite powder and tetrapolyricinoleic acid ester, grind to 125 mesh, then heat to 70°C, add sodium tripolyphosphate and keep stirring for 1.5h;

[0034] (2) Add 40% water by mass to the potato starch, add banana fiber and stir evenly;

[0035] (3) Mix the product obtained from step (1) and step (2) with polybutylene succinate, polylactic acid and plasticizer evenly, and extrude and granulate through a twin-screw extruder at 150°C to obtain a plastic Masterb...

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PUM

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Abstract

The invention discloses a plastic master batch capable of being fully degraded by environmental organisms, and a preparation method thereof, and belongs to the field of plastics. The plastic master batch capable of being fully degraded by environmental organisms comprises, by weight, 15-25 parts of polybutylene succinate, 10-20 parts of polylactic acid, 5-10 parts of a plasticizer, 40-50 parts ofpotato starch, 16-20 parts of banana fibers, 10-14 parts of wollastonite powder, 8-12 parts of ricinoleate tetramer and 6-10 parts of sodium tripolyphosphate. A filler wollastonite powder is modifiedwith the sodium tripolyphosphate, and then cooperates with the banana fibers, so the mechanical properties of the plastic are enhanced, and the plastic keeps stable performances during use, can be used fully degraded by environmental organisms after being used, and is nontoxic, harmless and environmentally friendly.

Description

technical field [0001] The invention relates to a plastic, in particular to an environmentally fully biodegradable plastic masterbatch and a preparation method thereof. Background technique [0002] Plastics are polymer compounds that are polymerized from monomers through addition polymerization or polycondensation reactions. The composition and shape can be changed freely. It is composed of synthetic resins and fillers, plasticizers, stabilizers, lubricants, colorants and other additives. composition. Plastic is an important organic synthetic polymer material. Because of its strong corrosion resistance, no reaction with acid and alkali, low manufacturing cost, durability, waterproof, light weight and strong plasticity, it is widely used in various industries. [0003] However, plastics are easy to age, and discarded plastics cannot be degraded naturally for decades or even hundreds of years, leading to the destruction of the ecological environment and threatening the norma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L67/02C08L67/04C08L1/02C08L97/02C08L5/14C08K9/02C08K3/34C08J3/22
Inventor 白利华许杰王东燕
Owner 山东天一生物降解塑业有限公司
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