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High flame retardant combined polyether for continuous production of polyurethane sheet and preparation method thereof

A combination of polyether and high flame retardant technology, applied in the field of polyurethane, can solve the problems of slow development of high flame retardant product technology, and achieve low cost, convenient production and use, and smooth board surface

Inactive Publication Date: 2016-11-30
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the past few years, in the absence of restrictions on blowing agents, cyclopentane is flammable and explosive, resulting in slow development of high flame retardant product technology using cyclopentane as blowing agent

Method used

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  • High flame retardant combined polyether for continuous production of polyurethane sheet and preparation method thereof
  • High flame retardant combined polyether for continuous production of polyurethane sheet and preparation method thereof
  • High flame retardant combined polyether for continuous production of polyurethane sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of component A:

[0030] The raw material composition of component A is shown in Table 1.

[0031] Table 1 A component raw material composition in Example 1

[0032]

[0033]

[0034] Add the above-mentioned raw materials that have been weighed into the reaction kettle, stir at room temperature for 0.5 hours, and mix thoroughly. Then add 12kg of dimethyl methylphosphonate DMMP, and mix to obtain A component.

[0035] (2) Preparation of component B: weigh 100 kg of polymethylene polyphenyl polyisocyanate.

[0036] (3) Mix component A and component B evenly according to the weight ratio of 1:1.6, and the free foam density is 36.6kg / m 3 , the foaming speed is controlled at 12 seconds of cream time and 50 seconds of gel time, and the polyurethane rigid foam material is obtained, and the quality index is shown in Table 4.

Embodiment 2

[0038] (1) Preparation of component A:

[0039] The raw material composition of component A is shown in Table 2.

[0040] The raw material composition of A component in table 2 embodiment 2

[0041] B251

50kg

NT-403

5kg

PE-B175

40kg

TIPA

5kg

Y-16268

1kg

B8545

3kg

h 2 o

2kg

Triethylenediamine

0.7kg

1,3,5-Tris(dimethylaminopropyl)hexahydrotriazine

0.5kg

Potassium acetate

3kg

TCPP

20kg

CP / IP

8.4kg / 3.6kg

[0042] Add the above-mentioned raw materials that have been weighed into the reaction kettle, stir at room temperature for 0.5 hours, and mix thoroughly. Then add 12kg of dimethyl methylphosphonate DMMP, and mix to obtain A component.

[0043] (2) Preparation of component B: weigh 100 kg of polymethylene polyphenyl polyisocyanate.

[0044] (3) The components A and B are uniformly mixed and molded according to the weight ratio of 1:1.7, and t...

Embodiment 3

[0046] (1) Preparation of component A:

[0047] The raw material composition of component A is shown in Table 3.

[0048] The raw material composition of A component in table 3 embodiment 3

[0049] B251

45kg

NT-403

5kg

PE-B175

45kg

TIPA

5kg

Y-16268

1kg

B8545

3kg

h 2 o

2.3kg

Triethylenediamine

0.9kg

1,3,5-Tris(dimethylaminopropyl)hexahydrotriazine

0.5kg

Potassium isooctanoate

3kg

TCPP

20kg

CP / IP

8.4kg / 3.6kg

[0050] Add the above-mentioned raw materials that have been weighed into the reaction kettle, stir at room temperature for 0.5 hours, and mix thoroughly, then add 12kg of dimethyl methylphosphonate DMMP, and mix to obtain component A.

[0051] (2) Preparation of component B: weigh 100 kg of polymethylene polyphenyl polyisocyanate.

[0052] (3) Mix component A and component B uniformly according to the weight ratio of 1:1.8, and the foa...

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Abstract

Belonging to the technical field of polyurethane, the invention in particular relates to a high flame retardant combined polyether for continuous production of polyurethane sheet and a preparation method thereof. The high flame retardant combined polyether is composed of a component A and a component B that are in a weight ratio of 1:1.5-1.8, wherein the component A is prepared from the following raw materials by weight percentage: 25-35% of flame retardant polyether polyol I; 2-5% of polyether polyol II; 20-35% of flame retardant polyester polyol; 2-5% of a crosslinking agent; 1-1.5% of a foam stabilizer; 13-25% of a foaming agent; 2.5-4.5% of a catalyst; 15-25% of a flame retardant I; 3-8% of a flame retardant II; and 0.5-2.0% of water; and the component B is polyaryl polymethylene isocyanate. The high flame retardant combined polyether provided by the invention has good adiabaticity and high percentage of close area, and the overall flame retardant level can reach the national B2 level flame retardant standard.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a high flame-retardant combined polyether for continuous production of polyurethane boards and a preparation method thereof. Background technique [0002] Polyurethane, as one of the six major synthetic materials, has developed rapidly in recent years and gradually partially replaced other synthetic materials in different fields. But at the same time, polyurethane foam is also a large consumer of HCFCs series blowing agents, which have a strong destructive effect on the atmospheric ozone layer, leading to global warming and an increase in skin cancer patients. In order to maintain the ecological environment, international conventions have made strict restrictions and regulations on its production and use. China completely phased out CFC-11 in 2010, and now, HCFC-141b, once a substitute for CFC-11, is also on the way to being phased out. According to the HCFCs p...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/50C08G18/48C08G18/42C08G18/32C08J9/14C08K5/521C08K5/5333C08G101/00
CPCC08G18/3278C08G18/4018C08G18/4208C08G18/4804C08G18/5009C08G18/6622C08G18/7664C08J9/141C08J2203/14C08J2203/182C08J2205/10C08J2375/06C08J2375/08C08K5/521C08K5/5333C08G2110/0025C08G2110/005
Inventor 徐业峰周生鹏李欣张佳佳
Owner SHANDONG INOV NEW MATERIALS CO LTD
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