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Application of fatty acid modified hyperbranched polyester to plastic processing

A technology of hyperbranched polyester and fatty acid modification, applied in the field of plastic processing aids, can solve the problems of low decomposition temperature of hyperbranched polyester, inability to realize industrial production, affecting plastics, etc., and achieves enhanced melt fluidity and easy industrialization promotion. , Improve the effect of dispersing performance

Inactive Publication Date: 2016-02-10
WEIHAI CY DENDRIMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides the application of fatty acid modified hyperbranched polyester in plastic processing, which solves the problem of low decomposition temperature of hyperbranched polyester in the prior art, the inability to realize industrialized production and the large amount of addition in plastics which affects plastic modification. Sexual cost, energy consumption and performance issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In a 1-ton reaction kettle equipped with mechanical stirring, a thermometer and a reflux condenser, add 482Kg of dimethylol propionic acid and 122Kg of pentaerythritol, add 3Kg of stannous octoate catalyst, and heat to 160°C under the protection of nitrogen, and react for 6 hours; Continue the reaction under vacuum conditions. When the acid value of the reaction is less than 30mgKOH / g, the reaction is completed and cooled to obtain a colorless transparent solid. It is the first generation of hydroxyl-terminated hyperbranched polyester, which is recorded as HBPE-10. for 8.

[0020] Add 360Kg HBPE-10, 492Kg hexadecanic acid and 4.26Kg butyl titanate to a 1-ton reaction kettle equipped with mechanical stirring, thermometer and reflux condenser, and heat to 160°C under nitrogen protection, and react for 3 hours; Under vacuum conditions, continue the reaction, when the acid value of the reaction system is lower than 30mgKOH / g, the reaction ends; cooling to obtain a solid mod...

Embodiment 2

[0023] In a 1-ton reaction kettle equipped with mechanical stirring, a thermometer and a reflux condenser, add 225KgHBPE-10 and 402Kg dimethylolpropionic acid, add 3.135Kg p-toluenesulfonic acid, and heat to 160°C under the protection of helium. React for 4 hours; continue the reaction under vacuum conditions, when the acid value of the reaction is less than 30mgKOH / g, the reaction is completed, cooled, and a colorless transparent solid is obtained, which is the second generation of hydroxyl-terminated hyperbranched polyester, denoted as HBPE-20, The number of terminal functional groups is 16.

[0024] In a 1 ton reaction kettle equipped with mechanical stirring, thermometer and reflux condenser, add 360KgHBPE-20, and add 386.14Kg hexadecanic acid and 3.74Kg butyl titanate, under the protection of helium, heat to 160°C, react 4h; under vacuum conditions, continue to react, when the acid value of the reaction system is lower than 30mgKOH / g, the reaction ends; cooling to obtain ...

Embodiment 3

[0028] In a 1 ton reaction kettle equipped with mechanical stirring, thermometer and reflux condenser, add 260KgHBPE-20 and 364Kg dimethylolpropionic acid, add 3.12Kg p-toluenesulfonic acid, and heat to 160°C under nitrogen protection to react 4h; continue the reaction under vacuum conditions, when the acid value of the reaction is less than 30mgKOH / g, the reaction is completed, cooled, and a colorless transparent solid is obtained, which is the third generation of hydroxyl-terminated hyperbranched polyester, denoted as HBPE-30, terminal The number of hydroxyl groups is 32.

[0029] Add 300Kg of HBPE-30, 290.72Kg of hexadecanoic acid and 1.8Kg of butyl titanate into a 1-ton reaction kettle equipped with mechanical stirring, thermometer and reflux condenser. Under the protection of nitrogen, heat to 160°C and react for 4h ;Under vacuum conditions, continue to react, when the acid value of the reaction system is lower than 30mgKOH / g, the reaction ends; cooling to obtain solid mo...

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PUM

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Abstract

The invention discloses application of fatty acid modified hyperbranched polyester to plastic processing, belonging to the technical field of plastic processing aids. The application of fatty acid modified hyperbranched polyester comprises the steps of adding 0.5-3% of fatty acid modified hyperbranched polyester into plastics, uniformly mixing, extruding for granulating, and drying to obtain a modified plastic product. Plastics including polypropylene and the like are modified through mixing the plastics including polypropylene and the like and hyperbranched polyester at a high speed, and then, granulating by extruding through a double-screw extruder; the hyperbranched polyester is added into plastic matrixes, so that the processing temperature of the plastics can be remarkably lowered, the apparent property of the plastics is improved, and relatively high melting flowability is realized through relatively low additive amount; the decomposition temperature of the fatty acid modified hyperbranched polyester is relatively high and can be up to 290 DEG C; and the melt index of the modified plastics is remarkably increased, and meanwhile the dispersing performance of a filling system is improved.

Description

technical field [0001] The invention belongs to the technical field of plastic processing aids, in particular to the application of fatty acid modified hyperbranched polyester in plastic processing. Background technique [0002] Hyperbranched polymer (HBP) is a new type of polymer material, which has the characteristics of three-dimensional structure, regular molecular structure and narrow relative molecular mass distribution. HBP has a compact structure similar to a sphere, and the molecular chains are less entangled, so the viscosity changes little with the increase of the relative molecular weight, and because there are many functional end groups in the molecule, the viscosity, solubility, thermal stability, glass transition temperature and the relative molecular weight distribution and other properties have a great influence. Hyperbranched polymers have a dendrimer-like structure (tree-like structure) and, due to their resemblance to dendrimers, possess similar physical...

Claims

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Application Information

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IPC IPC(8): C08G63/06C08G63/78C08L67/04C08L23/12
Inventor 李武松任强刘聪聪康宏强
Owner WEIHAI CY DENDRIMER TECH
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