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Alkane foaming B1-grade flame-retardant polyurethane rigid foam and preparation method thereof

A technology of rigid foam and alkane, applied in the field of alkane foaming B1 flame-retardant polyurethane rigid foam and its preparation, can solve the problems of high brittleness of polyurethane foam, difficulty in large-scale use, poor thermal insulation performance, etc., and achieve The effect of increased foaming ratio, convenient technological operation and low cost

Active Publication Date: 2020-11-10
WANHUA CHEMYANTAI RONGWEI POLYURETHANE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention uses environmentally friendly water as the foaming agent, the polyurethane foam produced by water foaming has the disadvantages of high brittleness, poor thermal insulation performance, poor adhesion, etc., and it is difficult to use on a large scale

Method used

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  • Alkane foaming B1-grade flame-retardant polyurethane rigid foam and preparation method thereof
  • Alkane foaming B1-grade flame-retardant polyurethane rigid foam and preparation method thereof
  • Alkane foaming B1-grade flame-retardant polyurethane rigid foam and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The formulation system is as follows:

[0040] Combined polyether polyol components: 100 Flame retardant polyether polyol 1 10 Polyester polyol 1 57.6 TCPP 25 Foam Stabilizer A1 1.5 Foam Stabilizer B1 0.5 PC5 0.5 PC8 0.8 Potassium acetate 2.5 water 0.6 acetic acid 1 Blowing agent components: n-pentane 6 Polyisocyanate component: PM-400 210

[0041] Flame-retardant polyether polyol 1, tetrabromobisphenol A as starter, hydroxyl value 112mgKOH / g, Wanhua Chemical (Ningbo) Rongwei Polyurethane Co., Ltd., product brand FR212.

[0042] Polyester polyol 1, phthalic anhydride OPA, terephthalic acid, adipic acid, diethylene glycol DEG, glycerin polymerized, hydroxyl value 190mgKOH / g, Beijing Demei Kechuang Co., Ltd., product brand DM2013 .

[0043] Foam stabilizer A1, Evonik Specialty Chemicals (Shanghai) Co., Ltd., B84813.

[0044] Foam stabilizer A2, Evonik Specialty Chemicals ...

Embodiment 2

[0047] The formulation system is as follows:

[0048] Combined polyether polyol components: 100 Flame retardant polyether polyol 2 12 Polyester polyol 2 50 TCPP 25 TEP 5 Foam Stabilizer A2 3 PC5 0.3 PC8 0.5 Potassium formate 2.5 water 0.5 formic acid 1.2 Blowing agent components: n-pentane 5 Polyisocyanate component: PM-700 230

[0049] Flame-retardant polyether polyol 2, prepared by the ring-opening reaction of glycerin and melamine as a mixed initiator and ethylene oxide, the mass ratio of glycerin and melamine is 5:1, the hydroxyl value range is 480mgKOH / g, Wanhua Chemical ( Ningbo) Rongwei Polyurethane Co., Ltd.

[0050] Polyester polyol 2, polymerized from phthalic anhydride OPA, terephthalic acid, diethylene glycol DEG, and glycerin, with a hydroxyl value of 315 mgKOH / g, from Stepan Polyester Co., Ltd., product number PS3158.

[0051] Foam stabilizer A2, Evonik Specialty ...

Embodiment 3

[0054] The formulation system is as follows:

[0055]

[0056]

[0057] Flame-retardant polyether polyol 1, tetrabromobisphenol A as starter, hydroxyl value 112mgKOH / g, Wanhua Chemical (Ningbo) Rongwei Polyurethane Co., Ltd., product brand FR212.

[0058] Flame-retardant polyether polyol 3 is prepared by the ring-opening reaction of glycerin and melamine as a mixed initiator and ethylene oxide. The mass ratio of glycerin and melamine is 3:1, and the hydroxyl value range is 350mgKOH / g. Wanhua Chemical ( Ningbo) Rongwei Polyurethane Co., Ltd.

[0059] Polyester polyol 3, phthalic anhydride OPA, terephthalic acid, adipic acid and diethylene glycol DEG, polymerized, hydroxyl value 200mgKOH / g, Stepan Polyester Co., Ltd., product brand DPR5145- 36.

[0060] Foam stabilizer A1, Evonik Specialty Chemicals (Shanghai) Co., Ltd., B84813.

[0061] Foam stabilizer A2, Evonik Specialty Chemicals (Shanghai) Co., Ltd., B8443.

[0062] Alcohol ester acid is 2-[2-(2-hydroxyethoxy)etho...

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Abstract

The invention discloses alkane foaming B1-grade flame-retardant polyurethane rigid foam and a preparation method thereof. Alkane is adopted as a foaming agent, polyether / polyester polyol with a specific flame-retardant effect, a catalyst, a foam stabilizer, a flame retardant, other special assistants and the like are matched to prepare combined polyether, and the combined polyether reacts with polyisocyanate to generate high-index PIR foam. The B1 flame-retardant polyurethane rigid foam disclosed by the invention is mainly suitable for a continuous line production process, and has the advantages of high flame retardance, environmental protection, low density, high production tolerance, excellent foam performance and the like compared with other types of PIR plate foam.

Description

technical field [0001] The invention belongs to the field of macromolecular materials and is used for manufacturing building foam insulation materials, and in particular relates to alkane foaming B1 grade flame-retardant polyurethane rigid foam and a preparation method thereof. Background technique [0002] Today, when building energy conservation is increasingly concerned, especially after low-carbon energy conservation has become my country's basic national policy, polyurethane foam will definitely be widely promoted and applied in the building insulation industry. However, rigid polyurethane foam also faces concerns about its fire safety. [0003] In order to learn the painful lessons of building external insulation fire accidents such as CCTV new site 2.9 and Shanghai 11.15, the new version of the national standard "Code for Fire Protection in Building Design" was revised in 2018. At the same time, the requirements for core material B1 are added to composite materials, ...

Claims

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Application Information

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IPC IPC(8): C08G18/50C08G18/42C08K5/521C08K5/12C08J9/14C08J9/00C08L75/04
CPCC08G18/4018C08G18/5012C08G18/5063C08G18/482C08G18/425C08K5/521C08K5/12C08J9/141C08J9/0038C08J9/0023C08J2375/04C08J2205/10C08J2203/14C08K2201/014
Inventor 李雪艳程东东邵康海朱霞林席强冷柏逊
Owner WANHUA CHEMYANTAI RONGWEI POLYURETHANE CO LTD
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