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Method for synthesizing heat resisting flame-retarded resin emulsion

A technology of flame retardant resin and synthesis method, which is applied in the field of synthesis of styrene resin emulsion, can solve the problems of unsatisfactory cost performance, increased process difficulty, serious PC resin degradation, etc., and achieves ideal yield and stability, Ease of reaction and wide range of composition adjustment

Active Publication Date: 2009-08-12
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing temperature of PC resin is quite different from that of ABS resin, which makes the process much more difficult during processing, and the degradation of PC resin is more serious, and the price is much higher than that of ABS resin. Therefore, the cost performance is not satisfactory.

Method used

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  • Method for synthesizing heat resisting flame-retarded resin emulsion
  • Method for synthesizing heat resisting flame-retarded resin emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] At 20°C, add 100 parts of desalted water and 2.7 parts of sodium lauryl sulfate into the emulsifier, turn on the stirring, control the rotation speed at about 60-100 rpm, and prepare emulsifier 2 emulsion (c). Mix 10 parts of N-phenylmaleimide, 20 parts of tribromophenyl maleic anhydride, 44.5 parts of styrene, 24.5 parts of acrylonitrile, 0.2 parts of azobisisobutyronitrile, and 0.2 parts of mercaptan, and start Stir to form a homogeneous monomer mixture solution (b). After mixing and dissolving 0.5 part of styrene, 0.5 part of acrylonitrile and 0.1 part of azobisisobutyronitrile, mix 1 part of sodium lauryl sulfate with 30 parts of water to make emulsifier 1 emulsion and mix it with the just dissolved benzene Mix the solution of ethylene, acrylonitrile and initiator into the reactor, stir until the system forms primary emulsion (a), raise the temperature to 75°C, and keep the temperature at a constant temperature for 10 minutes after the temperature of the water phase...

Embodiment 2

[0044] When the temperature is 20°C, add 100 parts of desalinated water, 2.0 parts of sodium lauryl sulfate, and 1.0 part of synthetic fatty acid potassium into the emulsifier, start stirring, and control the speed at about 60-100 rpm to configure emulsifier 2 emulsion (c) . 10 parts of N-phenylmaleimide, 30 parts of tribromophenyl maleic anhydride, 29.5 parts of α-methylstyrene, 29.5 parts of acrylonitrile, 0.2 parts of azobisisoheptanonitrile, 0.2 parts of t-dodecyl The carbon mercaptans are mixed and stirring is started to form a homogeneous monomer mixture solution (b). After mixing and dissolving 0.5 part of α-methylstyrene, 0.5 part of acrylonitrile and 0.1 part of azobisisobutyronitrile, mix 0.8 part of sodium lauryl sulfate, 0.4 part of synthetic fatty acid potassium and 30 parts of water to make an emulsifier 1 emulsion and mixed with the solution of just dissolved styrene, acrylonitrile and initiator, put into the reactor, stir until the system forms a primary emuls...

Embodiment 3

[0050] When the temperature is 20°C, add 100 parts of desalinated water, 2.0 parts of sodium lauryl sulfate, and 1.0 part of synthetic fatty acid potassium into the emulsifier, start stirring, and control the speed at about 60-100 rpm to configure emulsifier 2 emulsion (c) . 20 parts of N-phenylmaleimide, 15 parts of m-bromophenyl maleic anhydride, 34.0 parts of styrene, 29.5 parts of acrylonitrile, 0.25 parts of azobisisobutyronitrile, 0.19 parts of tertiary dodecyl mercaptan Mixing is performed and agitation is turned on to form a homogeneous monomer mixture solution (b). After mixing and dissolving 1.0 part of styrene, 0.5 part of acrylonitrile, 0.05 part of azobisisoheptanonitrile and 0.01 part of tert-dodecyl mercaptan, mix 1 part of sodium lauryl sulfate with 40 parts of water to make an emulsifier 1 emulsion and mixed with the solution of just dissolved styrene, acrylonitrile, initiator and regulator, put into the reactor, stir until the system forms primary emulsion (...

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Abstract

A synthetic method of a heat-resistant flame-retardant resin emulsion comprises the following steps: adding primary emulsion (a) formed by a small amount of monomers, an emulsifying agent and an initiator to a reactor, then heating to 30-100 DEG C for a certain time, and respectively and continuously or periodically and intermittently adding a monomer solution (b) with homogeneous phase and emulsion (c) of the emulsifying agent to the reactor to be mixed with the primary emulsion (a) for polymerization. The synthetic method can help obtain polymer emulsion with high conversion ratio and wide adjustment range of copolymer structure and composition, easily control reaction and obtain the product with high heat resistance and good flame retardance. The prepared heat-resistant flame-retardant resin emulsion has uniform structure, high heat resistance and good flame retardance, and very ideal yield and stability, can be widely used for modifying the heat resistance and the flame retardance of such materials as ABS, PC, PBT and the like, or can be used alone for preparing high heat-resistant parts of automobiles and household electrical appliances.

Description

technical field [0001] The invention relates to a method for synthesizing a heat-resistant and flame-retardant resin emulsion, in particular to a method for synthesizing a heat-resistant and flame-retardant styrene resin emulsion. Background technique [0002] Styrene-based heat-resistant flame-retardant (SMIBA) resin is a thermoplastic resin material with excellent performance, which has high rigidity, heat resistance, dimensional stability and high flame retardancy. Driven by the rapid development of electronic and electrical manufacturing and maintenance, automobile manufacturing and maintenance and other industries, higher performance requirements are put forward for various resin materials used in them, and resins are required to have higher and better special functions. Many resins have relatively low heat resistance and flame retardancy, making it difficult to adapt to high-end electronic appliances, automobile manufacturing and other industries. For example: ABS res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/40C08F222/04C08F212/02C08F220/42C08F2/24C08F2/38
Inventor 王乐唐明安王永峰邵卫何连成王锋梁滔荔栓红李树毅李怀宁
Owner PETROCHINA CO LTD
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