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Rigid foam flame-retardant polyether polyol and preparation method thereof

A flame retardant polyether and polyol technology, applied in the field of chemical synthesis, can solve problems such as performance impact, and achieve the effects of good durability of flame retardant performance and good physical performance indicators.

Active Publication Date: 2017-10-31
SHANDONG BLUSR DONGDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain sufficient flame retardant performance, it is often adopted to add a certain amount of flame retardant to the composite material, but the addition of flame retardant will have some adverse effects on the synthesis reaction and product performance.

Method used

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  • Rigid foam flame-retardant polyether polyol and preparation method thereof
  • Rigid foam flame-retardant polyether polyol and preparation method thereof
  • Rigid foam flame-retardant polyether polyol and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 80 parts of glycerin, 30 parts of sucrose, 50 parts of tetrabromobisphenol A, 15 parts of cyclodextrin into the stainless steel reaction kettle, and then add 2.5 parts of boron trifluoride ether, the temperature is ≤40°C; start stirring, nitrogen replacement twice ; Heating up to 100°C, stirring for 3 hours; then raising the temperature to 105°C, starting to continuously add 90 parts of epichlorohydrin and 90 parts of propylene oxide, controlling the pressure at 0.1-0.4MPa, the temperature at 110-115°C, and reacting for 6 hours under internal pressure to obtain product.

Embodiment 2

[0030] Add 50 parts of glycerin, 20 parts of sucrose, 55 parts of tetrabromobisphenol A, 25 parts of cyclodextrin into the stainless steel reaction kettle, and then add 3 parts of boron trifluoride ether, the temperature is ≤40°C; start stirring, nitrogen replacement 3 times ;Raise the temperature to 95°C and stir for 2.5h; then raise the temperature to 105°C, start adding 75 parts of epichlorohydrin and 120 parts of propylene oxide continuously, control the pressure at 0.1-0.4MPa, temperature at 105-110°C, and react for 4.5 hours under internal pressure , get the product.

Embodiment 3

[0032] Add 65 parts of glycerin, 25 parts of sucrose, 45 parts of tetrabromobisphenol A, 35 parts of cyclodextrin into the stainless steel reaction kettle, and then add 2 parts of boron trifluoride ether, the temperature is ≤40°C; start stirring, nitrogen replacement twice ; heat up to 80°C, stir for 2 hours; then heat up to 105°C, start to continuously add 60 parts of epichlorohydrin, 100 parts of propylene oxide, control the pressure 0.1-0.4MPa, temperature 105-110°C, internal pressure reaction 4h, get product.

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Abstract

The invention belongs to the technical field of chemical synthesis and particularly relates to hard-foam flame-retardant polyether glycol and a preparation method thereof. Glycerol, sucrose, tetrabromobisphenol A, cyclodextrin and boron trifluoride diethyl etherate are added into a reaction kettle and are stirred, nitrogen replacement is performed, and heating and stirring are performed; then epoxy chloropropane and epoxy propane are sequentially added for reaction, and the product is prepared. A flame-retardant element is introduced in initiator of the polyether glycol so that the flame-retardant performance can be achieved; the prepared polyether glycol has the advantages that the flame-retardant performance endurance is good and various physical performance indexes of the product are good.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a rigid foam flame-retardant polyether polyol and a preparation method thereof. Background technique [0002] Polyurethane (PU) rigid foam is a polymer material with superior performance, which is widely used in many fields such as industry, agriculture, military, culture, education and medical care. Due to the good heat insulation effect, high mechanical strength, electrical performance, chemical corrosion resistance and sound insulation effect of this material, it has an irreplaceable role in many engineering fields such as furniture, automobile interior decoration, building insulation, and home appliances. In terms of building insulation, due to the world's energy shortage and the requirements of energy-saving goals, polyurethane rigid foam will be widely used as a better thermal insulation material. [0003] The large-scale application of rigid polyure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/28C08G18/50
CPCC08G18/5012C08G65/2639C08G65/2687C08G2110/0025
Inventor 段燕芳刘小会徐韦王丙龙王怀祥
Owner SHANDONG BLUSR DONGDA CHEM
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