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A kind of polymer and its preparation method and application

A technology of high polymer and molecular structure, applied in the field of polymer materials, can solve the problems of air pollution, environmental damage, inability to recycle, etc.

Active Publication Date: 2021-10-26
WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Engineering plastics mainly include polycarbonate, polyamide, polyoxymethylene, polyphenylene ether, polyester and polyphenylene sulfide, etc., but most of the existing engineering plastics are non-degradable materials, so the engineering plastics used in large quantities can only be It is processed by incineration or landfill, which cannot be recycled, and the utilization rate of resources is extremely low. At the same time, it also causes a lot of damage to the environment, making air and other pollution more serious.

Method used

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  • A kind of polymer and its preparation method and application
  • A kind of polymer and its preparation method and application
  • A kind of polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of preparation method of polymer, comprises the following steps:

[0035] Step 1: Put 2.9g of castor oil, 20g of polybutylene adipate and 20ml of toluene into the reaction vessel A and mix them sequentially, and stir for 15min at 160°C and 500rad / min to obtain the mixed solution A;

[0036] Step 2: Put the mixed solution A prepared in step 1, 0.1g p-toluenesulfonic acid and 50ml tetrahydrofuran into the reaction vessel B, stir and mix, and stir for 20min at 80°C with a rotation speed of 300rad / min to obtain the mixed solution B ;

[0037] Step 3: At a temperature of 0°C and a stirring speed of 900 rad / min, add 1.6 g of diethylene glycol divinyl ether dropwise to the mixed solution B at a rate of 3 drops per 5 seconds; the addition ends Finally, raise the reaction temperature to 20°C, set the stirring speed to 1000 rad / min, and react for 5 hours; after the reaction is complete, rotate the mixed solution B to remove the solvent; then cool and solidify to obtain a ...

Embodiment 2

[0039] A kind of preparation method of polymer, comprises the following steps:

[0040] Step 1: Put 2g of castor oil, 23g of polybutylene adipate and 20ml of toluene into the reaction vessel A, stir and mix them sequentially, and stir for 15 minutes at 160° C. at a speed of 500 rad / min to obtain a mixed solution A;

[0041] Step 2: Put the mixed solution A prepared in step 1, 0.1g p-toluenesulfonic acid and 50ml tetrahydrofuran into the reaction vessel B, stir and mix, and stir for 20min at 80°C with a rotation speed of 300rad / min to obtain the mixed solution B ;

[0042] Step 3: At a temperature of 0°C and a stirring speed of 900 rad / min, add 1.5 g of diethylene glycol divinyl ether dropwise to the mixed solution B at a rate of 3 drops per 5 seconds; the addition ends Finally, raise the reaction temperature to 15°C, set the stirring speed to 1000 rad / min, and react for 6 hours; after the reaction is complete, rotate the mixed solution B to remove the solvent; then cool and s...

Embodiment 3

[0044] A kind of preparation method of polymer, comprises the following steps:

[0045] Step 1: Put 4g of castor oil, 18g of polybutylene adipate and 20ml of toluene into the reaction vessel A, stir and mix them in sequence, and stir for 15min at 160°C at a speed of 500rad / min to obtain a mixed solution A;

[0046] Step 2: Put the mixed solution A prepared in step 1, 0.1g p-toluenesulfonic acid and 50ml tetrahydrofuran into the reaction vessel B, stir and mix, and stir for 20min at 80°C with a rotation speed of 300rad / min to obtain the mixed solution B ;

[0047] Step 3: At a temperature of 0°C and a stirring speed of 900 rad / min, add 2 g of diethylene glycol divinyl ether dropwise to the mixed solution B at a rate of 3 drops per 5 seconds; , the reaction temperature was raised to 25°C, the stirring speed was set to 1000 rad / min, and the reaction was carried out for 4 hours; after the reaction was complete, the mixed solution B was rotary evaporated to remove the solvent; then ...

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Abstract

The invention discloses a high-molecular polymer and its preparation method and application. It is prepared by reacting castor oil, polybutylene adipate and diethylene glycol divinyl ether as reactants. Castor oil, polyhexamethylene Butylene diacid and toluene are mixed to obtain mixed solution A; then mixed solution A, p-toluenesulfonic acid and tetrahydrofuran are mixed to form mixed solution B; then diethylene glycol divinyl ether is added dropwise to mixed solution B to react , the final conversion rate of the present invention can reach more than 90%; the prepared high molecular polymer can be used to prepare engineering plastics; Stir and mix with tetrahydrofuran, put into an oven and react to obtain engineering plastics. Because the engineering plastics of the present invention can undergo acid degradation, they are very friendly to the environment; at the same time, the engineering plastics have high tensile strength and bending strength under normal conditions, which can meet the needs of actual production and life.

Description

technical field [0001] The present invention relates to the field of polymer materials, and more specifically relates to a polymer, its preparation method and application. Background technique [0002] Engineering plastics refer to plastics that can be used as engineering materials and replace metals to make machine parts, etc. Compared with general-purpose plastics, engineering plastics can meet higher requirements in terms of mechanical properties, durability, corrosion resistance, heat resistance, etc., and are more convenient to process and can replace metal materials. Engineering plastics are widely used in electronics, machinery, aerospace and other industries. It has become an international trend to replace steel and wood with plastic. Engineering plastics has become the fastest growing field in the plastics industry in the world today. Its development not only supports the national pillar industries and modern high-tech industries, but also promotes the transformati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/91C08L67/02
CPCC08G63/916C08L67/02
Inventor 李钟玉周鑫权郑凯易明
Owner WENZHOU UNIV
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