PLA-based degradable 3D printing supplies

Abstract

The invention discloses PLA-based degradable 3D printing supplies, and the supplies comprise the following components in parts by weight: 50-80 parts of a master batch, 40-80 parts of modified starch, 1-3 parts of a pigment, and 2-4 parts of an auxiliary agent. The master batch is PLA plastic. The auxiliary agent comprises the following components: 10-15 parts of lubricant; 20-40 parts of a plasticizer, and 5-10 parts of an anti-oxidant. The lubricant is one of barium stearate, fatty acid amide and glyceryl monostearate. The plasticizer is one of DEHP, DOP and DBP. The anti-oxidant is anti-oxidant 1010 or anti-oxidant TNP. The PLA-based degradable 3D printing supplies have better mechanical properties and good stability, harmful substances are not easy to emit in usage process, and the PLA-based degradable 3D printing supplies can be widely applied to the fields of food package and life.

Description

technical field [0001] The invention relates to a PLA-based degradable 3D printing consumable. Background technique [0002] Degradable plastics refer to the addition of some additives to promote their degradation in plastics or the use of renewable natural raw materials, which can meet the application performance requirements during the use and storage period, and after use, under specific environmental conditions, in a short period of time Its chemical structure will change significantly over time, resulting in the loss of certain properties, or a type of plastic that has degradable properties when synthesized. Degradable plastics play a pivotal role in solving the global white pollution problem. [0003] As a multifunctional new technology material, degradable plastics have a wide range of applications and great market potential. According to relevant data, the consumption of biodegradable polymers accounted for about 2% of the total plastic consumption in 2000, and the...

AI Technical Summary

Problems solved by technology

[0005] The current problems of degradable plastics are mainly that they are expensive and difficult to popularize and utilize. Starch-filled plastics cannot be degraded. , Accurate degradation controllability, rapid degradability after use, complete degradability and recycling technology of leftover materials need to be further improved and perfected

Environmentally degradable polymers have not yet had a unified definition in the world and have completely established a unified test evaluation method, identification mark and product testing standards, resulting in confusion in the technology market and product market.

In addition, the current research on degradable plastics is still mainly based on the degradation of polymer resins, and most of them fail to take into account the factors of additives; except for completely biodegradable plastics, the intermediate degradation of other various degradable plastics in the degradation process The impact of the product on animals and plants has not been evaluated, etc.