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Hyperbranched polyglycerol ester bio-based plasticizer as well as preparation method and application thereof

A technology of polymerizing glycerin and bio-based, applied in the field of plastic additives, can solve the problems of non-additive, non-bio-based plasticizers, white pollution, etc., and achieve the effect of simple operation, reduced production cost, and easy-to-obtain raw materials

Active Publication Date: 2020-12-25
合肥飞木生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the plasticizers used by most of my plastic companies are DOP (dioctyl phthalate), DINP (diisononyl phthalate) and DBP (dibutyl phthalate). Plasticizers have an estrogen-like structure, they are not bio-based plasticizers, especially food-contact plastic products, cannot be added, and sales are prohibited
[0004] Non-degradable plastic PVC or other vinyl resins, in addition to providing convenience for people's daily life, non-degradable disposable plastic products are used on a large scale, resulting in white pollution and becoming a major social hazard

Method used

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  • Hyperbranched polyglycerol ester bio-based plasticizer as well as preparation method and application thereof
  • Hyperbranched polyglycerol ester bio-based plasticizer as well as preparation method and application thereof
  • Hyperbranched polyglycerol ester bio-based plasticizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In a 500ml four-neck flask, add 230g of anhydrous glycerin and K 2 CO 3 0.23g, install the mechanical stirring device, feed N 2 Protect, insert a thermometer and a distillation condenser, stir and heat up, the temperature rises slowly between 100-220°C to start the polymerization reaction, when the condenser receives water in the bottle and generates 36g of reactant, the hydroxyl value is 1021mgKOH / g, and the degree of polymerization is at this time 5. Control the temperature of the polymerized glycerin at 100-120°C, add 31g of glycidol dropwise, and keep it warm for 2 hours after the dropping, to obtain 225g of light yellow viscous liquid hyperbranched polymerized glycerol, with a yield of 97.8% relative to glycerol.

Embodiment 2

[0038] 100 kilograms of hyperbranched polyglycerol prepared according to the process of Example 1 and 20 kilograms of glacial acetic acid, 0.5 kilograms of phosphoric acid were mixed and stirred, heated and refluxed for esterification reaction, rectified water in the reflux process, and the acid value of the esterified product was determined to be less than or equal to 0.5 mgKOH / g was the reaction end point. After it was cooled to room temperature, it was loaded into barrels and weighed to obtain 110.2 kg of hyperbranched polyglyceride bio-based plasticizer with a mass yield of 91.8%.

Embodiment 3

[0040] 100 kilograms of hyperbranched polyglycerol prepared according to the process of Example 1 and 20 kilograms of propionic acid, mixed with 0.5 kilograms of phosphoric acid, heated and refluxed for esterification reaction, rectified water during the reflux process, and the acid value of the esterified product was determined to be less than or equal to 0.5 mgKOH / g is the reaction end point. After it is cooled to room temperature, it is loaded into barrels and weighed to obtain 112.6 kg of hyperbranched polyglyceride bio-based plasticizer with a mass yield of 93.8%.

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Abstract

The invention discloses a hyperbranched polyglycerol ester bio-based plasticizer for polylactic acid (PLA) and a preparation method thereof, and belongs to the technical field of preparation of bio-based plasticizers. The hyperbranched polyglycerol ester plasticizer is obtained by taking bio-based glycerol as a raw material through the preparation of polyglycerol, the preparation of hyperbranchedpolyglycerol and the preparation reaction of hyperbranched polyglycerol ester. The preparation process is simple and feasible, the raw materials are low in price, non-toxic, environment-friendly, safeand stable, the prepared plasticizer has good compatibility with polylactic acid, and the processability, tensile strength and mechanical properties are remarkably improved.

Description

technical field [0001] The invention relates to a hyperbranched polyglyceride bio-based plasticizer and a preparation method thereof. More specifically, the invention relates to a plasticizer used for degradable bio-based plastic polylactic acid, which belongs to the technical field of plastic additives. Background technique [0002] Plasticizers are incorporated into resins, usually polyvinyl chloride (PVC), to improve the resin's stability, processability or flexibility. Typical applications for plasticized PVC include film, sheet, pipe, coated fabrics, wire and cable insulation and jacketing, toys, flooring materials such as vinyl sheet flooring or vinyl floor tiles, adhesives, sealing Agents, inks and medical products such as blood bags and tubing. [0003] At present, the plasticizers used by most of my plastic companies are DOP (dioctyl phthalate), DINP (diisononyl phthalate) and DBP (dibutyl phthalate). Plasticizers have an estrogen-like structure. They are not bio...

Claims

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Application Information

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IPC IPC(8): C08G83/00C08L67/04C08L3/02C08L87/00
CPCC08G83/006C08L67/04C08L3/02C08L87/00
Inventor 谢爱迪谢书轩吴青梅
Owner 合肥飞木生物科技有限公司
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