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Ternary carboxylic acid compound as well as preparation method and application thereof

A technology of tribasic carboxylic acid and compound, which is applied in the field of tribasic carboxylic acid compound and its preparation, can solve problems such as unfavorable melting and molding processing of degradable composite materials, decreased fluidity of blending system, and affecting material degradation rate, etc. Achieve the effect of good biocompatibility, good processability and abundant sources

Pending Publication Date: 2022-05-17
广州伊莱新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these compatibilizers contain a large number of maleic anhydride groups or epoxy groups, so that there are more cyclic active groups on the compatibilizer, which will react with the hydroxyl groups on PLA, PBAT and other materials, and can be degraded Cross-linking will occur between the materials, which will lead to a significant decrease in the fluidity of the blend system, which is not conducive to the subsequent melting and molding processing of the obtained degradable composite materials
In addition, after the degradable composite material forms a certain polymer cross-linked network structure, it is difficult for external moisture to penetrate into the polymer, which affects the degradation rate of the material. When the compatibilizer content is too high, the material may even be unable to degrade

Method used

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  • Ternary carboxylic acid compound as well as preparation method and application thereof
  • Ternary carboxylic acid compound as well as preparation method and application thereof
  • Ternary carboxylic acid compound as well as preparation method and application thereof

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preparation example Construction

[0060] The present invention also provides a method for preparing tricarboxylic acid compounds. The raw materials for the preparation of tricarboxylic acid compounds include the following components in parts by mass:

[0061]

[0062] The amino acid is selected from one or more of lysine and lysine derivatives.

[0063] It can be understood that the present invention uses polyolefin wax as the base resin, first grafts maleic anhydride groups on the polyolefin wax to obtain polyolefin wax-maleic anhydride grafts, and then further amidates with specific types of amino acids Reaction, prepare tribasic carboxylic acid compound, reaction route is as follows:

[0064]

[0065] Wherein R' is a polyolefin group.

[0066] In one example, the lysine derivative is selected from but not limited to: 5-hydroxylysine, 5-methyllysine, 5-ethyllysine.

[0067] In one of the embodiments, the raw materials for the preparation of tricarboxylic acid compounds include the following component...

Embodiment 1～4

[0101] Embodiment 1~4 provides a kind of trivalent carboxylic acid compound respectively, and the raw material component and proportioning ratio of the trivalent carboxylic acid compound of each embodiment are shown in Table 1, and the total amount of all raw material components in each embodiment is according to 100 copies.

[0102] Table 1

[0103]

[0104]

[0105] The preparation method is as follows:

[0106] (1) Put polyolefin wax and antioxidant into the reaction kettle, and after nitrogen replacement three times, carry out melting treatment under the condition of nitrogen protection and temperature at 117°C;

[0107] (2) Maleic anhydride monomer is placed in storage tank A, catalyst and amino acid are placed in storage tank B to obtain the mixture of catalyst and amino acid;

[0108] (3) After the polyolefin wax is completely melted in step (1), raise the temperature to 170° C., start the stirrer, and the rotating speed is 100 rpm / min;

[0109] (4) Open the li...

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Abstract

The invention relates to a tricarboxylic acid compound as well as a preparation method and application thereof. The tricarboxylic acid compound has the structural characteristics as shown in a formula (I). The structure of the tricarboxylic acid compound does not contain a cyclic reactive functional group, the tricarboxylic acid compound is applied to a degradable composite material as a compatibilizing lubricant, the problems of poor flowability and degradation performance reduction caused by a cross-linking reaction of the material can be avoided, the compatibilizing effect is good, and the application range is wide. The processing fluidity of the composite material is remarkably improved, meanwhile, the composite material has good degradation performance, the thermal stability of the composite material in the high-temperature processing process is improved, and the actual application requirement is better met.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a tribasic carboxylic acid compound and its preparation method and application. Background technique [0002] Degradable materials refer to materials that can be degraded in a thermodynamic and kinetic sense over a period of time. According to the external factors of degradation, degradable materials are divided into: photodegradable materials, biodegradable materials, etc. Among them, biodegradable materials, as a kind of naturally degradable materials, play a unique role in environmental protection. Exploitation has been developed rapidly and is considered to be an effective solution to "white pollution". [0003] Common biodegradable materials currently on the market include polylactic acid (PLA), copolymer of butylene adipate and butylene terephthalate (PBAT), polybutylene succinate (PBS) Among them, PLA comes from natural starch, which is rich in sources, non-tox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/02C08F8/32C08F8/46C08L23/36
CPCC08F8/32C08L23/36C08L2201/06C08F8/46C08F10/02Y02W90/10
Inventor 佟月吴志锐郭凤杰王中健路学红宋昆娜余吕宏陈向文钱玉英余慧英
Owner 广州伊莱新材料有限公司
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