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A toughened intermediate and preparation method thereof, and a toughened mosquito repellent polymer biodegradable composite material for 3D printing

A polymer material and 3D printing technology, applied in additive processing, carboxylate preparation, chemical instruments and methods, etc., can solve problems such as the decline of mosquito repellent effect, expand application development space, enhance network structure, and reduce pollution Effect

Active Publication Date: 2022-07-15
宁波坚锋新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing 3D printing materials include a mosquito repellent 3D printing material disclosed in the invention patent 201510287329.5 with a plant-derived mosquito repellent added to provide mosquito repellent effect, but the mosquito repellent in this invention consists of a variety of complex components It is prepared by simple blending and extrusion, and the mosquito repellent effect of the material will be significantly reduced after long-term use

Method used

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  • A toughened intermediate and preparation method thereof, and a toughened mosquito repellent polymer biodegradable composite material for 3D printing
  • A toughened intermediate and preparation method thereof, and a toughened mosquito repellent polymer biodegradable composite material for 3D printing
  • A toughened intermediate and preparation method thereof, and a toughened mosquito repellent polymer biodegradable composite material for 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Epoxidized vegetable oil, mosquito repellent, acid anhydride, and catalyst were weighed according to the toughening intermediate raw materials and their parts by weight described in Example 1 in Table 1, and were pre-dried in an oven.

[0039] Then, the mosquito repellent and the acid anhydride are slowly stirred evenly, and gradually heated to 90° C. within one hour to obtain a mosquito repellent intermediate.

[0040] Then, epoxidized vegetable oil and catalyst are added, and the temperature is raised to 150° C. and kept under catalyst conditions for 1 hour to obtain a toughened intermediate.

Embodiment 2

[0042] The raw materials were weighed according to the toughening intermediate raw materials and their parts by weight described in Example 2 in Table 1.

[0043] Then, the mosquito repellent and the acid anhydride are slowly stirred evenly, and then gradually heated to 95° C. within one hour to obtain a mosquito repellent intermediate.

[0044] Then, epoxidized vegetable oil and catalyst are added, and the temperature is raised to 155° C. and kept under catalyst conditions for 1 hour to obtain a toughened intermediate.

Embodiment 3

[0046] The raw materials were weighed according to the toughening intermediate raw materials and their parts by weight described in Example 3 in Table 1.

[0047] Then, the mosquito repellent and the acid anhydride are slowly stirred evenly, and gradually heated to 100° C. within one hour to obtain a mosquito repellent intermediate.

[0048] Then, the epoxidized vegetable oil and the catalyst are added, and the temperature is raised to 160° C. and kept under the catalyst condition for 2 hours to obtain a toughened intermediate.

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Abstract

The invention belongs to the technical field of polymer materials, and in particular relates to a toughened intermediate and a preparation method thereof, and a toughened mosquito repellent polymer biodegradable composite material for 3D printing. The toughening intermediate is prepared from mosquito repellent, acid anhydride and epoxidized vegetable oil under the action of a catalyst, wherein the mosquito repellent is extracted from plants and is bio-based sources of geraniol, 4-terpene alcohol, eucalyptus one or more of oleyl alcohol. The toughening intermediate of the present invention utilizes bio-based geraniol as a mosquito repellant, and has good compatibility between acid anhydrides and epoxidized vegetable oil to achieve the purpose of combination, and the toughening intermediate is used for the toughening of 3D printing. Mosquito repellent polymer biodegradable composite material triggers an in-situ reaction between components during the melt blending process, which greatly enhances the network structure of the material, effectively improves the toughness of 3D printed products made of this branched material, and overcomes traditional polymer materials. , especially the disadvantage of poor impact toughness when PBS is used as a 3D material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a toughened intermediate and a preparation method thereof, and a toughened mosquito repellent polymer biodegradable composite material for 3D printing. Background technique [0002] With the development of the concept of "environmental protection and green", degradable plastics have been used more and more widely in all aspects of life because they can be rapidly degraded under natural environment conditions, eventually forming carbon dioxide and water. At present, 3D printing materials have begun to change from industrial, construction, automobile and other fields to daily use. There is still a lot of room for development of polymer materials as 3D printing materials. At the same time, in terms of degradability, toughness, strength and additional properties To be further improved. [0003] Degradable materials in the prior art include a low-cost toughened ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C67/26C07C67/08C07C69/40C07C69/42C07C69/83C07C69/593C07C69/60C08L67/04C08L67/02C08L5/08C08L91/00B33Y70/10
Inventor 陈宁麻一明吴剑波徐禄波
Owner 宁波坚锋新材料有限公司
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