Acrylic ester modifier and preparation and use in bisphenol A poly carbonate

A technology of acrylates and modifiers, applied in the field of acrylate modifiers prepared from organic-inorganic hybrid materials, can solve the problem of reducing PC heat resistance, reducing optical properties, reducing PC tensile strength and bending mold It is easy to replace the formula, the process is simple, and the performance is improved.

Inactive Publication Date: 2004-12-15
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking polycarbonate and ABS as an example, PC/ABS alloy can improve the impact strength and processability of PC, but PC/ABS alloy r

Method used

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  • Acrylic ester modifier and preparation and use in bisphenol A poly carbonate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] First, dry the nano-silica in an oven at 105°C for 2 hours. Add the silane coupling agent KH-570 and xylene to the dried nano-particles. Stir in the air for 20 minutes, protect by nitrogen, and then put it in an oil bath. Heat to 140°C in the medium, stir, and control the reaction temperature at the reflux temperature of xylene at 140°C. After reacting for 10 hours, leave the product to stand. After layering, vacuum dry the lower layer to obtain alkylated nano-silica. The weight ratio between each material is:

[0034] Nano silica: KH-570: xylene = 10: 2: 250;

[0035] Then add the alkylated nanoparticles and emulsifier to the deionized water, pass nitrogen protection, start stirring, when the temperature rises to 70 ℃, add ammonium persulfate, butyl acrylate and methyl methacrylate step by step. After the reaction is completed, it is cooled to room temperature, and the emulsion is spray-dried to obtain a white powder. The weight ratio between the materia...

Example Embodiment

[0038] Example 2

[0039] First, dry the nano-silica in an oven at 105°C for 2 hours. Add the silane coupling agent KH-570 and xylene to the dried nano-particles. Stir in the air for 20 minutes, protect by nitrogen, and then put it in an oil bath. Heat to 140°C in the medium, stir, and control the reaction temperature at the reflux temperature of xylene at 140°C. After reacting for 10 hours, leave the product to stand. After layering, vacuum dry the lower layer to obtain alkylated nano-silica. The weight ratio between each material is:

[0040] Nano silica: KH-570: xylene = 10: 2: 250;

[0041] Then add the alkylated nano silica and emulsifier to the deionized water, pass nitrogen protection, start stirring, when the temperature rises to 70 ℃, add ammonium persulfate and methyl methacrylate step by step, the reaction is complete After cooling to room temperature, the emulsion was spray-dried to obtain a white powder,

[0042] The weight ratio between the materials is: alkylated na...

Example Embodiment

[0044] Example 3

[0045] First, the nano-zinc oxide was dried in an oven at 105°C for 2 hours, then KH-570 and xylene were added to the dried nanoparticles, stirred in the air for 20 minutes, protected by nitrogen, and then heated to 140°C in an oil bath , Stirring, the reaction temperature is controlled at the reflux temperature of xylene at 140 ℃, after 10 hours of reaction, the product is allowed to stand, after stratification, the lower layer material is vacuum-dried to obtain alkylated nano zinc oxide, wherein the weight of each material Than:

[0046] Nano zinc oxide: KH-570: xylene = 10: 2: 250;

[0047] Then add the alkylated nanoparticles and emulsifier to the deionized water, pass nitrogen protection, start stirring, when the temperature rises to 70 ℃, dropwise add ammonium persulfate, 2-ethylhexyl acrylate and methyl After the reaction is complete, the methyl acrylate is cooled to room temperature, and the emulsion is spray-dried to obtain a white powder. The weight ra...

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Abstract

The acrylic ester modifier is prepared through drying nano silica, nano calcium carbonate, nano zinc oxide, nano zinc sulfide, nano titania or nano cadmium sulfide, adding silane as coupling agent and xylene to react under the xylene refluxing temperature, letting stand to separate lower layer matter, drying the lower layer matter to obtain nano alkylated particle as the acrylic ester modifier. The nano alkylated particle is mixed with emulsifier and deionized water, and through heating under nitrogen protection to 70 deg.c, dropping initiator, acrylic ester monomer to react, cooling, spray drying, modified acrylic ester is obtained. The weight ratio between modifier and the acrylic ester monomer is 2-10 to 90-98. The present invention can raise the performance of polymer.

Description

technical field [0001] The invention belongs to an acrylic modifier, in particular to an acrylic modifier prepared from an organic-inorganic hybrid material in which nanoparticles are cores and acrylic copolymers are shells. Background technique [0002] At present, the impact modifier products produced in my country mainly include chlorinated polyethylene (CPE), acrylic resin (ACR) and methyl methacrylate-butadiene-styrene copolymer (MBS). These modifiers can improve The impact strength of other polymers can reduce the tensile strength and heat distortion temperature of the polymer, but the bending strength cannot improve the overall performance of the polymer. With the improvement of polymer performance requirements and the functionalization of polymers, higher requirements are put forward for the modification of polymers. [0003] Polycarbonate resin generally has good heat resistance, optical properties and mechanical properties, so it has a wide range of applications in...

Claims

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Application Information

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IPC IPC(8): C08F2/44C08F120/10C08K9/06C08L69/00
Inventor 孙予罕魏伟赵宁张志毅
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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