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A kind of pmma toughening agent and high-toughness pmma composition prepared therefrom

A technology of composition and toughening agent, applied in the field of high toughness PMMA composition, can solve the problems such as no functionalized POE toughening modified PMMA and the like, and achieve the effects of low cost, good toughness and good toughening effect

Active Publication Date: 2021-02-02
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of POE with triphenylethyl groups to prepare PMMA-grafted POE has not been reported, let alone the report of such functionalized POE toughened modified PMMA.

Method used

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  • A kind of pmma toughening agent and high-toughness pmma composition prepared therefrom
  • A kind of pmma toughening agent and high-toughness pmma composition prepared therefrom
  • A kind of pmma toughening agent and high-toughness pmma composition prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 2g of diphenylmethylbenzylstyrene monomer and dissolve it in 300ml of toluene solution, then transfer the above solution to a 500ml reaction kettle and stir evenly. 10 ml of 1-butene was added to the reactor via a syringe while raising the temperature of the reactor to 130°C. Pass into ethylene in the reactor, and by ethylene control the pressure in the reactor is stable at 3MPa, then the metallocene catalyst of the toluene solution 2.6ml of 10Wt% MAO and 2umol adds in the reactor and initiates polymerization reaction, reacts 30min, then The above reaction solution was transferred to acidified ethanol to terminate the reaction to obtain macroinitiator 1 (molecular weight 241846, determined by gel permeation chromatography). Stir and mix the macroinitiator 1 (structure shown in the following formula (3)) with MMA until uniform and heat-treat at 120°C for 8 hours to obtain a toughening agent with a POE segment (molecular weight 432460, through gel permeation chroma...

Embodiment 2

[0041] Weigh 2g of diphenylmethylbenzylstyrene monomer and dissolve it in 300ml of toluene solution, then transfer the above solution to a 500ml reaction kettle and stir evenly. 10 ml of 1-hexene was added to the reactor via a syringe while raising the temperature of the reactor to 140°C. Pass into ethylene in the reactor, and by ethylene control the pressure in the reactor is stable at 3MPa, then the metallocene catalyst of the toluene solution 2.6ml of 10Wt% MAO and 2umol adds in the reactor and initiates polymerization reaction, reacts 30min, then The above reaction solution was transferred to acidified ethanol to terminate the reaction to obtain macroinitiator 2 (molecular weight 242042, determined by gel permeation chromatography). Stir and mix the macroinitiator 2 (structure shown in the following formula (4)) with MMA until uniform and heat-treat at 130°C for 8 hours to obtain a toughening agent with a POE segment (molecular weight 421209, through gel permeation chroma...

Embodiment 3

[0044] Weigh 2g of diphenylmethylbenzylstyrene monomer and dissolve it in 300ml of toluene solution, then transfer the above solution to a 500ml reaction kettle and stir evenly. 10 ml of 1-octene was added to the reactor via a syringe while raising the temperature of the reactor to 160°C. Pass into ethylene in the reactor, and by ethylene control the pressure in the reactor is stable at 3MPa, then the metallocene catalyst of the toluene solution 2.6ml of 10Wt% MAO and 2umol adds in the reactor and initiates polymerization reaction, reacts 30min, then The above reaction solution was transferred into acidified ethanol to terminate the reaction to obtain macroinitiator 3 (molecular weight 244287, determined by gel permeation chromatography). Stir and mix the macroinitiator 3 (structure shown in the following formula (5)) with MMA until uniform and heat-treat at 135°C for 8 hours to obtain a toughening agent with a POE segment (molecular weight 419137, through gel permeation chro...

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Abstract

The invention discloses a PMMA toughening agent and a high-toughness PMMA composition prepared therefrom. The PMMA toughening agent is prepared by in-situ polymerization of polyolefin macroinitiators containing reactive functional groups and MMA monomers, and has the advantages of good toughening effect and simple preparation. The invention simultaneously discloses a high-toughness PMMA composition, the raw material contains the toughening agent provided by the invention, and has excellent transparency, impact resistance and mechanical properties in practical use.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PMMA toughening agent and a high-toughness PMMA composition prepared therefrom. Background technique [0002] PMMA (polymethyl methacrylate) is an excellent transparent material with a light transmittance as high as 91-93%, a visible light transmittance of 99%, and has good weather resistance, dimensional stability, electrical insulation, and low density , corrosion resistance, UV aging resistance, good sound insulation, high safety of debris, is a thermoplastic with good processing performance, widely used in transparent structural parts, aviation glass, instruments, light box nameplates, decorations, construction, Transportation, medical and other fields. However, PMMA also has shortcomings such as brittleness, low impact strength, poor surface hardness, and notch sensitivity, which limits its application. At present, the main methods of toughening and modifying P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/12C08L51/06C08F255/02C08F220/14
Inventor 李小博黄明路
Owner WANHUA CHEM GRP CO LTD
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