Unsaturated polyester resin flame-retardant material and preparation method thereof

A technology of polyester resin and flame retardant material is applied in the field of preparation of unsaturated polyester resin flame retardant composite material, which can solve the problems of industrial complexity and the like

Inactive Publication Date: 2013-09-04
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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preparation example Construction

[0014] The preparation steps of the unsaturated polyester resin flame retardant material are:

[0015] In a 250ml three-neck flask, add maleic anhydride, DOPOMA, phthalic anhydride, adipic acid, ethylene glycol, propylene glycol, diethylene glycol, and xylene. Stirring was started and the temperature was raised slowly. When the temperature is 80°C, the system turns into a light yellow clear liquid. When the temperature reaches 120°C, it takes 20 minutes to raise the temperature to 140°C, and then continue to slowly raise the temperature to 180°C (it takes 1.5 hours). The temperature of the reaction should not exceed 200°C at the end, and keep the temperature until the acid value is lower than 10mgKOH / g. When the acid value reaches a suitable value, the xylene is sucked out, and when the temperature is lowered to 140°C, a polymerization inhibitor is added, and the temperature is continuously stirred to cool down. When the temperature reaches 80°C, add styrene weighed in ...

Embodiment 1

[0020] Add 19.50 parts of maleic anhydride, 40 parts of DOPOMA, 1 part of phthalic anhydride, 1 part of adipic acid, 5.80 parts of ethylene glycol, 18.40 parts of propylene glycol, and 8.70 parts of diethylene glycol in a 250ml three-necked flask , 5.0 parts of xylene, 0.0180 parts of catalyst. Stirring was started and the temperature was raised slowly. When the temperature is 80°C, the system turns into a light yellow clear liquid. When the temperature reaches 120°C, it takes 20 minutes to raise the temperature to 140°C, and then continue to slowly raise the temperature to 180°C (it takes 1.5 hours). The temperature of the reaction should not exceed 200°C at the end, and keep the temperature until the acid value is lower than 30mgKOH / g. When the acid value reaches 10.09 mgKOH / g, the xylene is suction-filtered, and when the temperature is lowered to 140° C., 0.0100 parts of a polymerization inhibitor is added, and the temperature is continuously stirred to cool down. Wh...

Embodiment 2

[0022]Add 33 parts of maleic anhydride, 95 parts of DOPOMA, 2 parts of phthalic anhydride, 2.5 parts of adipic acid, 11 parts of ethylene glycol, 42.9 parts of propylene glycol, and 21.0 parts of diethylene glycol in a 2500ml three-necked flask , 2.93 parts of xylene, 0.0415 parts of catalyst. Stirring was started and the temperature was raised slowly. When the temperature is 80°C, the system turns into a light yellow clear liquid. When the temperature reaches 120°C, it takes 20 minutes to raise the temperature to 140°C, and then continue to slowly raise the temperature to 180°C (it takes 1.5 hours). The temperature of the reaction should not exceed 200°C at the end, and keep the temperature until the acid value is lower than 10mgKOH / g. When the acid value reaches 7.9 mgKOH / g, the xylene is suction-filtered, and when the temperature is lowered to 140° C., 0.1172 parts of polymerization inhibitor is added, and the temperature is continuously stirred and lowered. When the tem...

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Abstract

The invention discloses an unsaturated polyester resin flame-retardant material and a preparation method thereof. The unsaturated polyester resin flame-retardant material comprises the following components in percentage by weight: 16.32%-25.04% of maleic anhydride, 8.47%-46.35% of DOPOMA (2-[10-(9,10-dihydro-9-oxa-10-phosphaphenantrene-10-oxide-10-yl)] maleic acid), 13.45%-18.91% of phthalic anhydride, 0%-5.12% of adipic acid, 5.48%-7.70% of glycol, 18.0%3-27.70% of propylene glycol, 9.19%-12.95% of diethylene glycol, 5.1%-7% of water-carrying agent, 0.02% of catalyst, 0.02% of polymerization inhibitor, 25%-35% of cross-linking agent, 25%-35% of diluent, 1% of modified nano SiO2, 1% of initiating agent, 0.25% of accelerant and 0.05% of defoaming agent; the raw material DOPOMA is synthesized by DOPO and MA at a mole ratio of 1:1.05; maleic anhydride, phthalic anhydride, adipic acid, glycol, propylene glycol and diethylene glycol are added to directly synthesize flame-retardant unsaturated polyester by a one-step method; the initiating agent, the accelerant and the defoaming agent are added to the flame-retardant unsaturated polyester doped with nano SiO2, heated and cured; and the unsaturated polyester resin flame-retardant material can be obtained.

Description

technical field [0001] The invention relates to the preparation technology of unsaturated polyester resin flame-retardant composite material. Background technique [0002] With the application of polyester materials in civil construction, household goods, electronic appliances and other fields, higher requirements are put forward for their safety performance, especially the flame retardancy performance. There are many flame retardants used for polyester flame retardant modification, such as boron derivatives, metal oxides, graft copolymers, halogen-containing, phosphorus-containing compounds, etc., but mainly halogen and phosphorus compounds. However, flame retardant materials containing chlorine and bromine tend to emit irritating and corrosive hydrogen halide gas when burned. Today, with the increasing awareness of environmental protection, the application of halogen flame retardants will gradually be limited. Phosphorus-based flame retardants in polyester are based on so...

Claims

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Application Information

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IPC IPC(8): C08F283/01C08G63/692C08K9/06C08K3/36
Inventor 周应萍陈碧碧杨保平崔锦峰郭军红李敏睿包雪梅崔卓魏小赟常洲王心远张皓钧
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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