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Preparation method of stearate hyperbranched polyether grafted sisal microcrystals

A technology of hyperbranched polyether and stearate is applied in the field of preparation of stearate hyperbranched polyether grafted sisal microcrystals, and achieves the advantages of convenient large-scale production, little environmental pollution and improved interface compatibility. Effect

Active Publication Date: 2016-05-25
东营睿莱宝新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This research idea has not been reported in the literature so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Weigh 0.16g sisal microcrystal, 15ml tetrahydrofuran and 40ul potassium methylate solution, add in the three-necked flask of 250ml successively, N 2 Under protection, the temperature was raised to 55°C, and after constant temperature reaction for 1 hour, 20ml of dioxane and 1.8ml of glycidol were added, heated to 95°C and reacted for 24 hours, then 3ml of methanol was added to terminate the reaction, and finally poured into 50ml of acetone for precipitation, filtered, After vacuum drying for 24 hours, sisal microcrystals grafted with hydroxyl-terminated hyperbranched polyether were obtained.

[0019] (2) Take raw materials according to the following mass ratio, the hydroxyl-terminated hyperbranched polyether grafted sisal microcrystal that step (1) makes: stearic acid: p-toluenesulfonic acid=1:22:0.28, the weighed Raw materials were added to a three-necked flask under N 2 Stir and reflux reaction at 130°C under protection for 11 hours. After the reaction, pour the ...

Embodiment 2

[0022] (1) Weigh 0.24g sisal microcrystal, 15ml tetrahydrofuran and 50ul potassium methylate solution, add in the three-necked flask of 250ml successively, N 2 Under protection, the temperature was raised to 55°C, and after constant temperature reaction for 1 hour, 30ml of dioxane and 3ml of glycidol were added, heated to 92°C and reacted for 26 hours, then 3.5ml of methanol was added to terminate the reaction, and finally poured into 50ml of acetone for precipitation, filtered, After vacuum drying for 24 hours, sisal microcrystals grafted with hydroxyl-terminated hyperbranched polyether were obtained.

[0023] (2) Take the raw materials according to the following mass ratio, the hydroxyl-terminated hyperbranched polyether grafted sisal microcrystals prepared in step (1): stearic acid: p-toluenesulfonic acid=1:30:0.38, the weighed Raw materials were added to a three-necked flask under N 2 Stir and reflux reaction at 125°C under protection for 12 hours. After the reaction, pou...

Embodiment 3

[0026] (1) Weigh 0.32g sisal microcrystal, 20ml tetrahydrofuran and 80ul potassium methylate solution, add in the three-necked flask of 250ml successively, N 2 Under protection, the temperature was raised to 55°C, and after constant temperature reaction for 1 hour, 40ml of dioxane and 4ml of glycidol were added, heated to 93.5°C and reacted for 25 hours, then 4ml of methanol was added to terminate the reaction, and finally poured into 50ml of acetone for precipitation, filtered, vacuum After drying for 24 hours, sisal microcrystals grafted with hydroxyl-terminated hyperbranched polyether were obtained.

[0027] (2) Take raw materials according to the following mass ratio, the hydroxyl-terminated hyperbranched polyether grafted sisal microcrystal that step (1) makes: stearic acid: p-toluenesulfonic acid=1:45:0.56, the weighed Raw materials were added to a three-necked flask under N 2 Stir and reflux at 120°C for 13 hours under protection. After the reaction, pour the product i...

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Abstract

The invention discloses a preparation method of stearate hyperbranched polyether grafted sisal microcrystals. The method comprises the following steps: weighing sisal microcrystals, tetrahydrofuran and potassium methoxide, sequentially adding into a three-neck flask, heating to react for 1 hour under the protection of N2, adding dioxane and glycide, heating to react for 24-26 hours, adding methanol to terminate the reaction, pouring the reaction product into an organic solvent to precipitate, filtering, and carrying out vacuum drying for 24 hours to obtain hydroxyl-terminated hyperbranched polyether grafted sisal microcrystals; weighing the hydroxyl-terminated hyperbranched polyether grafted sisal microcrystals, stearic acid and a catalyst, adding into a three-neck flask, and heating and stirring under reflux to react for 11-13 hours under the protection of N2; and after the reaction finishes, pouring the product into a beaker filled with an organic solvent, carrying out precipitation separation, filtering, and carrying out vacuum drying to obtain the stearate hyperbranched polyether grafted sisal microcrystals. The method has the advantages of abundant raw material, low price, small environmental pollution and simple preparation steps, and is convenient for large-scale production. The product can effectively toughen and modify the wood-plastic composite material.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, in particular to a preparation method of stearate hyperbranched polyether grafted sisal microcrystal. Background technique [0002] The emergence of PM2.5 indicators and the increasingly severe haze weather have sounded the alarm for our environmental protection. There are many reasons for serious environmental pollution, but the most important one is the discharge pollution from enterprises and factories. The key to protecting the environment is to reduce the discharge of pollutants and vigorously develop ecological technology, which is of great significance to building a resource-saving and environment-friendly society. [0003] In this context, wood-plastic composite materials, which can not only give full play to the advantages of each component in the material, but also make full use of waste wood and plastics, reduce environmental pollution and reduce production costs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L1/04C08K3/26C08B15/00C08G65/332
CPCC08B15/00C08G65/3322C08L23/12C08L1/04C08K2003/265
Inventor 陆绍荣吴玲燕李裕琪潘露露杨瑾徐旭杨超
Owner 东营睿莱宝新材料有限公司