Thermoplastic resin composition and preparation method thereof

A technology of thermoplastic resin and composition, which is applied in the field of thermoplastic resin composition and its preparation, and can solve the problem of low concentration in essence

Active Publication Date: 2015-03-25
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The stable polyamide described in the patent CN 103597010A is modified in the early stage of polymerization, and its biggest limitation lies in the obvious limitations on the production and processing conditions of the practically applied products. Among them, the heat-stable polyamide is based on the substantial concentration of polyol Low, not suitable for blending and extruding with other systems as a stabilizer to further obtain thermally stable products

Method used

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  • Thermoplastic resin composition and preparation method thereof
  • Thermoplastic resin composition and preparation method thereof
  • Thermoplastic resin composition and preparation method thereof

Examples

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Embodiment 1-14

[0075] Synthesis of THTAA: Add ethylene oxide and ammonia water with a concentration of 25% into the reactor, the molar ratio of ethylene oxide and ammonia is 3:2, stir and react at room temperature for 1 hour, and rectify according to different boiling points to obtain diethanolamine ; Methyl eicosanoate and diethanolamine are added in a molar ratio of 1:2 into the reaction kettle, and sodium ethylate is added. The amount of sodium ethylate is the total weight of methyl eicosanoate and diethanolamine 0.15wt%, the reaction temperature is 80 ℃, and vacuumize the pressure in the reactor to be lower than 60mmHg, after reacting for 2.5h, neutralize to pH 7 with 0.1mol / L hydrochloric acid, remove unreacted by vacuum distillation Diethanolamine, to give THTAA.

[0076] Synthetic PVA-a-St: stearamide (accounting for total weight 7.5wt%) is dropped into reactor, adds DMSO (accounting for total weight 80wt%), is heating and dissolving under the condition of 60 ℃ at temperature, adds (a...

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Abstract

The invention provides thermoplastic resin composition and a preparation method thereof. The thermoplastic resin composition is characterized by comprising thermoplastic polyamide resin and alcohol amide, wherein the alcohol amide is a vinyl alcohol allyl monomer copolymer, polyol substitute amide or a combination of the vinyl alcohol allyl monomer copolymer and the polyol substitute amide. The alcohol amide is added to the polyamide composition and has the unexpected stabilizing effect (especially the long-term effect) on thermo-oxidative aging, coolants, oil, road salts and even light and weather.

Description

technical field [0001] The invention relates to a stable thermoplastic resin composition and a preparation method thereof. Background technique [0002] Due to their excellent mechanical properties, chemical resistance, processability, and heat-oxidative aging resistance, polyamide compositions are often used in the electronics and motor vehicle industries that have strict requirements on the working environment. Among them, the peripherals of motor vehicle engines applications are particularly common. Among them, turbocharging replaces supercharging to increase the intake air volume of the engine, thereby increasing the power and torque of the engine, which is the trend of automobile development. However, the engine is required to be able to withstand the higher pressures and temperatures of turbocharged operation. This forces the heat resistance level of the materials used around the engine to be continuously upgraded. The ambient temperature around the engine can reach ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L29/04C08L51/00C08K7/14C08K5/20B29C47/92B29C48/92
CPCC08L77/06C08L2201/08C08L2205/03C08K7/14C08K5/20C08L29/04C08L51/00
Inventor 林洁龙罗忠富丁正亚杨波丁超李永华肖军华李志路刘晓亮苏婧霞
Owner SHANGHAI KINGFA SCI & TECH
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