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Reusable biodegradable plastic and preparation method thereof

A technology of biodegradable plastics and raw materials, applied in the field of biodegradable plastics and its preparation, can solve the problems of insufficient material hardness and temperature resistance, lack of toughness and rigidity, low comprehensive performance of plastics, etc., achieve low cost, accelerate plastic degradation, Effect of improving impact toughness

Pending Publication Date: 2022-07-29
宁波金富亮塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a renewable biodegradable plastic and its preparation method, which solves the problems of inconvenient degradation, lack of toughness and rigidity, serious shortage of hardness and temperature resistance, and low comprehensive performance of existing plastics in the prior art. question

Method used

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  • Reusable biodegradable plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A recyclable biodegradable plastic, in weight percentage, comprising the following components:

[0038] 65wt% polypropylene PP raw material, 32wt% talc modifier, 1.0wt% compatibilizer, 1.5wt% toughening agent, 0.2wt% heat stabilizer, 0.3wt% lubricant.

[0039] Specifically, the talc modifier is selected from at least one particle size of 1250 mesh, 2000 mesh, 3000 mesh, 5000 mesh, and 20-100 nm.

[0040] The rigidity of polypropylene PP raw materials is improved by talc mineral inorganic ion polymerization technology, the flexural modulus reaches more than 3000 MPa, and the flexural strength reaches more than 37 MPa. The talc powder is unstable to light to accelerate the degradation of PP materials.

[0041] Specifically, the compatibilizer is selected from POE-g-MAH, SEBS-g-MAH, PP-g-MAH, silane coupling agent, titanate coupling agent, aluminate coupling agent, composite coupling agent at least one of the agents.

[0042] The main function of setting the compatibiliz...

Embodiment 2

[0056] A recyclable biodegradable plastic, in weight percentage, comprising the following components:

[0057] 50wt% polypropylene PP raw material, 38.5wt% talc modifier, 5.0wt% compatibilizer, 5.0wt% toughening agent, 0.5wt% heat stabilizer, 1.0wt% lubricant.

[0058] Specifically, the talc modifier is selected from at least two of the particle sizes of 1250 mesh, 2000 mesh, 3000 mesh, 5000 mesh, and 20-100 nm.

[0059] The rigidity of polypropylene PP raw materials is improved by talc mineral inorganic ion polymerization technology, the flexural modulus reaches more than 3000 MPa, and the flexural strength reaches more than 37 MPa. The talc powder is unstable to light to accelerate the degradation of PP materials.

[0060] Specifically, the compatibilizer is selected from POE-g-MAH, SEBS-g-MAH, PP-g-MAH, silane coupling agent, titanate coupling agent, aluminate coupling agent, composite coupling agent at least two of the agents.

[0061] The main function of setting the co...

Embodiment 3

[0075] A recyclable biodegradable plastic, in weight percentage, comprising the following components:

[0076] 58wt% polypropylene PP raw material, 35wt% talc modifier, 3.0wt% compatibilizer, 3.0wt% toughening agent, 0.35wt% heat stabilizer, 0.65wt% lubricant.

[0077] Specifically, the talc modifier is selected from at least one particle size of 1250 mesh, 2000 mesh, 3000 mesh, 5000 mesh, and 20-100 nm.

[0078] The rigidity of polypropylene PP raw materials is improved by talc mineral inorganic ion polymerization technology, the flexural modulus reaches more than 3000 MPa, and the flexural strength reaches more than 37 MPa. The talc powder is unstable to light to accelerate the degradation of PP materials.

[0079] Specifically, the compatibilizer is selected from POE-g-MAH, SEBS-g-MAH, PP-g-MAH, silane coupling agent, titanate coupling agent, aluminate coupling agent, composite coupling agent at least two of the agents.

[0080] The main function of setting the compatibil...

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Abstract

The invention relates to the technical field of biodegradable plastics, and particularly discloses a renewable biodegradable plastic and a preparation method thereof, the renewable biodegradable plastic comprises the following components by weight: 50 wt%-65 wt% of a polypropylene PP raw material, 30 wt%-45 wt% of a talcum powder modifier, 1.0 wt%-5.0 wt% of a compatilizer, 1.5 wt%-5.0 wt% of a flexibilizer, 0.2 wt%-0.5 wt% of a heat stabilizer, and 0.3 wt%-1.0 wt% of a lubricant; comprising the following steps: S1, weighing raw materials for later use; S2, carrying out surface treatment on the raw materials; S3, mixing the raw materials; S4, setting the material mixing temperature and time; the plastic degradation is accelerated by utilizing the characteristic that the talcum powder is unstable to light; the talcum powder and mineral substance special flaky crystals improve the rigidity of the polypropylene material, and the toughening agent is arranged to improve the toughness of the modified polypropylene material; the talcum powder and polypropylene are fully bonded through the coupling agent, the physical and chemical properties of the modified material are improved, regeneration use is facilitated, and the rigidity and the thermal deformation temperature of the material are superior to those of starch plastic, PLA, PBAT and PBS degradable plastic in the market at present.

Description

technical field [0001] The invention relates to the technical field of biodegradable plastics, in particular to a recyclable biodegradable plastic and a preparation method thereof. Background technique [0002] In order to solve the growing problem of plastic pollution, the use of plastics in certain occasions is currently reduced or even banned. Many plastic manufacturers have also developed various biodegradable plastics, such as corn starch plastics, polylactic acid PLA, PBAT, PBS and other degradable plastics, but these products have serious performance deficiencies compared with traditional plastics, and they are used in production and use. There are new contaminations and other obvious defects in the process. [0003] The existing starch plastics only add a certain proportion of starch, which not only cannot be degraded, but also loses the toughness and rigidity of plastics. [0004] PLA, PBAT, and PBS still have two fatal defects. The material cost is high, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/16C08L53/02C08L23/08C08K3/34C08K9/04C08K9/06
CPCC08L23/12C08L2201/06C08L23/16C08L53/025C08L23/0869C08L23/0815C08K3/34C08K9/04C08K9/08C08K9/06
Inventor 张春琦
Owner 宁波金富亮塑料科技有限公司
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