Toughening agent with core-shell structure, preparation method and application of toughening agent in preparation of oil-resistant high-toughness PC alloy

A technology of core-shell structure and toughening agent, which is applied in the field of oil-resistant high-toughness PC alloy and its preparation, to achieve the effect of lasting fragrance, ensuring heat resistance and oil resistance

Active Publication Date: 2022-03-18
WANHUA CHEMICAL (NINGBO) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on PC alloys that improve the oil resistance of polycarbonate and take into account the usage scenarios

Method used

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  • Toughening agent with core-shell structure, preparation method and application of toughening agent in preparation of oil-resistant high-toughness PC alloy
  • Toughening agent with core-shell structure, preparation method and application of toughening agent in preparation of oil-resistant high-toughness PC alloy
  • Toughening agent with core-shell structure, preparation method and application of toughening agent in preparation of oil-resistant high-toughness PC alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Prepare core-shell structure toughening agent (T1), the steps are:

[0103] 1) Add 180g of tetrahydrofuran, 30g of polyvinylpyrrolidone (molecular weight: 10000) and 30g of benzyl alcohol into a 1000ml three-necked flask equipped with a stirrer, heat up to 40°C, add 0.4g of p-toluenesulfonic acid, stir and condense for 6 hours, and the reaction ends Finally, control the temperature at 80°C, add 0.3 g of triethylamine dropwise to quench the reaction, stir until all solids are precipitated, filter with suction, and dry to obtain aryl polyvinylpyrrole ketal;

[0104] 2) Add 10g of deionized water and 0.5g of sodium lauryl sulfate to a 1000ml three-necked flask, raise the temperature to 60°C, add 5g of methyl methacrylate and 1g of potassium persulfate, perform a polymerization reaction at 60°C for 3 hours, and then use 0.5 h Add 52g of methyl methacrylate, sodium lauryl sulfate, and water mixture (the mixing quality is 10g, 2g, 40g), and perform two-stage polymerization re...

Embodiment 2

[0110] Prepare core-shell structure toughening agent (T2), the steps are:

[0111] 1) Add 150g of dichloromethane, 40g of polyvinylpyrrolidone (molecular weight: 20,000) and 35g of phenylethyl alcohol into a 1000ml three-neck flask equipped with a stirrer, heat up to 60°C, add 0.2g of p-toluenesulfinic acid, and stir for 2 hours for condensation reaction After the reaction, the temperature was controlled at 60°C, and 0.6 g of triethylamine was added dropwise to quench the reaction, stirred until all solids were precipitated, suction filtered, and dried to obtain aryl polyvinylpyrrole ketal;

[0112] 2) Add 30g of deionized water and 1g of sodium dodecylsulfonate to a 1000ml three-neck flask, raise the temperature to 70°C, add 5g of ethyl methacrylate and 0.5g of sodium persulfate, perform a polymerization reaction at 70°C for 2 hours, and then use Add dropwise 93g of ethyl methacrylate, sodium dodecylsulfonate, and water mixture (mixing mass: 20g, 3g, 70g) in 0.8h, and perform...

Embodiment 3

[0117] Prepare core-shell structure toughening agent (T3), the steps are:

[0118] 1) Add 140g of toluene, 50g of polyvinylpyrrolidone (molecular weight: 30,000) and 40g of phenylpropanol into a 1000ml three-neck flask equipped with a stirrer, heat up to 80°C, add 0.8g of p-toluenesulfinic acid, and stir the condensation reaction for 4h. After the reaction, control the temperature at 40°C, dropwise add 0.9 g of triethylamine to quench the reaction, stir until all solids are precipitated, filter with suction and dry to obtain aryl polyvinylpyrrole ketal;

[0119] 2) Add 30g of deionized water and 1.5g of sodium dodecylbenzenesulfonate into a 1000ml three-necked flask, raise the temperature to 80°C, add 8g of ethyl acrylate, 2g of ammonium persulfate, perform a polymerization reaction at 80°C for 4 hours, and then use 1h Add 130g of ethyl acrylate, sodium dodecylbenzene sulfonate, and water mixture (mixing mass: 27g, 3g, 100g) dropwise, and perform two-stage polymerization react...

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Abstract

The invention provides a core-shell structure toughening agent, a preparation method and application of the core-shell structure toughening agent in preparation of an oil-resistant high-toughness PC alloy, the core-shell structure toughening agent comprises a shell layer of polyvinylpyrrolidone ketal with aryl and a core of acrylate rubber, the preparation raw materials comprise polyvinylpyrrolidone, an aromatic alcohol compound and an acrylate monomer. The synthesized core-shell structure flexibilizer and organic peroxide are introduced into PC resin, the extrusion temperature and the injection molding temperature in the production process are controlled, so that the shell of the flexibilizer is crosslinked, an oil-resistant and high-toughness PC alloy product is prepared, and the PC alloy has lasting fragrance and is high in toughness. And after the performance is improved, the heat resistance and flame retardance of the PC material are well reserved.

Description

technical field [0001] The invention belongs to the field of PC alloy plastics, and in particular relates to a core-shell structure toughening agent and a preparation method thereof, an oil-resistant high-toughness PC alloy with a lasting fragrance prepared therefrom, a preparation method and application thereof. Background technique [0002] Polycarbonate has excellent impact toughness, flame retardancy, electrical insulation, heat resistance, gloss and dimensional stability, and is widely used in electronic and electrical products (such as wall sockets, switches), home appliances, 3C and other products. The use environment of these products is closely related to people, and they will come into contact with various oils during production and use, including arc extinguishing oil, red oil, white oil, vegetable oil, engine oil, etc. Since PC is a non-crystalline material, oil molecules are easy to invade and cause swelling and cracking of the product; in addition, there are ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C08K3/30C08L69/00C08L87/00
CPCC08G81/021C08K3/30C08L69/00C08K2003/3063C08K2003/3045C08L2201/08C08L87/005
Inventor 郭晨超陈连清祁先勇张振威李万庆
Owner WANHUA CHEMICAL (NINGBO) CO LTD
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