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A kind of flame-retardant polymer polyol and its preparation method and application

A technology of flame-retardant polymers and polyols, applied in flame-retardant polyurethane materials, low-odor flame-retardant polymer polyols and its preparation field, can solve the problems of reduced mechanical properties of polyurethane materials, and achieve low production costs, The effect of less residue and simple synthesis process

Active Publication Date: 2018-08-28
WANHUA CHEM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Another object of the present invention is to provide the use of the flame-retardant polymer polyol to prepare a flame-retardant polyurethane material, the polyurethane material prepared by it has higher thermal stability and flame retardancy, and effectively overcomes the problem caused by the additive type. The disadvantage of greatly reducing the mechanical properties of polyurethane materials caused by flame retardants

Method used

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  • A kind of flame-retardant polymer polyol and its preparation method and application
  • A kind of flame-retardant polymer polyol and its preparation method and application

Examples

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Effect test

Embodiment 1

[0046] In a reactor equipped with a thermometer, a temperature controller, a condenser, a feeder and an ultraviolet photoinitiator, add 1320 g of propylene oxide and ethylene oxide copolymerization with glycerin as an initiator and a hydroxyl value of 56 mg KOH / g Wanol F3156, heated to 80°C; 1500g of dimethyl vinylphosphonate, 12.5g of azobisisobutyronitrile, 14.5g of dodecyl mercaptan, and 800g of Wanol F3156 were added to the feeder; Slowly add to the reactor, keeping the temperature at 80°C~85°C during the period. After the addition is complete, after 10 hours of reaction, add 3.2g of 2,4,6-trimethylbenzoyldiphenylphosphine oxide, stir for 1 hour, and turn on The photoinitiator was used for 12 minutes, and the line power was 200W to obtain a white flame-retardant polymer polyol. The viscosity measured by a viscometer was 9542 mPa·s (25° C.).

Embodiment 2

[0048] In a reactor equipped with a thermometer, a temperature controller, a condenser, a feeder and an ultraviolet photoinitiator, add 1320 g of propylene oxide and ethylene oxide copolymerization with glycerin as an initiator and a hydroxyl value of 56 mg KOH / g Wanol F3156, heated to 100°C; Add 1600g of dimethyl vinylphosphonate, 800g of 2,3-dibromopropene, 12.7g of azobisisobutyronitrile, 15.2g of dodecyl mercaptan, and 1200g of Wanol F3156 In the feeder; slowly add the material in the feeder to the reactor, keep the temperature at 100°C~105°C during the period, react for 10h after the addition, add 2,4,6-trimethylbenzoyl diphenylphosphine oxide After 3.3g, stir for 1 hour, turn on the photoinitiator for 10 minutes, and the line power is 200W to obtain a white flame-retardant polymer polyol. The viscosity is 6134mPa·s (25°C).

Embodiment 3

[0050] In the reactor equipped with thermometer, temperature controller, condenser, feeder and ultraviolet photoinitiator, add propylene oxide and ethylene oxide copolymer with glycerol as initiator and hydroxyl value of 56mg KOH / g Wanol F3156 1320g, heated to 100°C; 1000g of 2,3-dibromopropene, 12.9g of azobisisobutyronitrile, 14.5g of dodecyl mercaptan, and 200g of Wanol F3156 were added to the feeder; The material is slowly added into the reactor, and the temperature is kept at 120°C to 125°C during the period. After the addition is complete, it is reacted for 8 hours. After adding 3.0g of 2,4,6-trimethylbenzoyldiphenylphosphine oxide, stir for 1 hour and turn on The photoinitiator was used for 10 minutes, and the line power was 200W to obtain a white flame-retardant polymer polyol. The viscosity is 5960mPa·s (25°C).

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Abstract

The invention discloses a flame-retardant polymer polyol and its preparation method and application. The polymer polyol has the characteristics of good flame-retardant performance, low VOC, low odor, moderate viscosity, and convenient use. The present invention adopts the vinyl monomer containing phosphorus and (or) bromine to undergo free radical copolymerization reaction with polyol in the presence of compound initiator and chain transfer agent to prepare polymer polyol, and the obtained polymer polyol and polyol The flame-retardant polyurethane material prepared by foaming isocyanate compound has high load-bearing capacity and flame retardancy.

Description

technical field [0001] The invention relates to the field of polymer polyols, in particular to a low-odor flame-retardant polymer polyol and a preparation method thereof, and also includes its application in flame-retardant polyurethane materials. Background technique [0002] Polymer polyol (POP) is a modified polyether polyol with special properties. Made by graft copolymerization, it is a blend system composed of polyether polyol, grafted polyether polyol, copolymer of vinyl monomers such as styrene and acrylonitrile, or self-polymer. It not only maintains the original flexibility of the polyether chain, but also has the good structural properties of vinyl polymers, so that the polyurethane foam has a high load-bearing capacity and good resilience performance, and increases the open cell ratio of the foam. It is widely used in Production of high-load, high-resilience soft and semi-rigid polyurethane foams, used in automobiles, trains, aircraft manufacturing, furniture in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/06C08F230/02C08F214/16C08F2/48C08F2/38C08F4/04C08F4/34C08G18/63C08G101/00
Inventor 鞠昌迅张琴花陈海波李付国董龙跃黎源华卫琦
Owner WANHUA CHEM GRP CO LTD
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