Molybdenum phenolic resin for water-soluble rock wool, adhesive, preparation method and application thereof

A molybdenum phenolic resin, water-soluble technology, applied in the field of water-soluble molybdenum phenolic resin for rock wool and its adhesive and preparation field, can solve the problems of poor storage stability, high free phenol/aldehyde content, limited thermal stability of PF, etc. , to achieve the effect of strong storage stability, low free phenol and free aldehyde content, and improved thermal stability of rock wool

Inactive Publication Date: 2019-01-11
北京新时代寰宇科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a water-soluble molybdenum phenolic resin for rock wool and its adhesive and preparation method, the molybdenum phenolic resin can effectively solve the traditional PF limited thermal stability, poor storage stability, free phenol / aldehyde The problem of high content, thereby improving the performance of rock wool adhesives, the obtained adhesive products meet the performance requirements of phenolic resin parameters for rock wool, thereby improving the performance of rock wool fibers

Method used

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  • Molybdenum phenolic resin for water-soluble rock wool, adhesive, preparation method and application thereof
  • Molybdenum phenolic resin for water-soluble rock wool, adhesive, preparation method and application thereof
  • Molybdenum phenolic resin for water-soluble rock wool, adhesive, preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Molybdenum is prepared by

[0045] Phenolic resin product 1

[0046] 1) Melting 100 parts by weight of phenol under airtight conditions at 40°C for subsequent use;

[0047] 2) Adjust the reaction temperature to 60-70°C, add 15 parts by weight of ammonium molybdate to the phenol melt, add formaldehyde solution dropwise and keep stirring, finally add 100 parts by weight of formaldehyde solution, and finally make the moles of phenol and formaldehyde The ratio is 1:1.2~2.0, and the reaction time is 1.0~2.0h to obtain the reaction solution;

[0048] 3) Add 2 parts by weight of ammonia water / triethylamine system to the reaction liquid in step 2), and add 5 parts by weight of urea at the same time, control the temperature at 60-70°C, keep it warm for 1.0-1.5h, and measure the free aldehyde content. Add the remaining urea to the content of the remaining urea, and add about 11 parts by weight of urea until the free aldehyde content reaches the standard, and cool;

[0049] 4) ...

Embodiment 2

[0051] Molybdenum phenolic resin product was prepared by the following method 2

[0052] 1) Melting 100 parts by weight of phenol under airtight conditions at 40°C for subsequent use;

[0053] 2) Adjust the reaction temperature to 60-70°C, add 30 parts by weight of ammonium molybdate to the phenol melt, add formaldehyde solution dropwise and keep stirring, finally add 150 parts by weight of formaldehyde solution, and finally make the moles of phenol and formaldehyde The ratio is 1:1.2~2.0, and the reaction time is 1.0~2.0h to obtain the reaction solution;

[0054] 3) Add 10 parts by weight of ammonia water / ethylenediamine system to the reaction solution in step 2), and add 2.5 parts by weight of urea at the same time, control the temperature at 60-70°C, keep it warm for 1.0-1.5 hours, and measure the free aldehyde content. Add the remaining urea to the content of the remaining urea, add about 5.5 parts by weight of urea until the free aldehyde content reaches the standard, an...

Embodiment 3

[0057] Molybdenum phenolic resin product was prepared by the following method 3

[0058] 1) Melting 100 parts by weight of phenol under airtight conditions at 40°C for subsequent use;

[0059] 2) Adjust the reaction temperature to 60-70°C, add 25 parts by weight of ammonium molybdate to the phenol melt, add formaldehyde solution dropwise and keep stirring, finally add 120 parts by weight of formaldehyde solution, and the reaction time is 1.0-2.0h Obtain the reaction solution;

[0060] 3) Add 20 parts by weight of ammonia water / triethylamine system to the reaction solution in step 2), and add 4 parts by weight of urea at the same time, control the temperature at 60-70°C, keep it warm for 1.0-1.5h, and measure the free aldehyde content. Add the remaining urea to the content of the remaining urea, and then add 8 parts by weight of urea until the free aldehyde content reaches the standard, and cool;

[0061] 4) Use ammonia water to adjust the pH of the solution to 7.0-8.0, conti...

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Abstract

The invention discloses a molybdenum phenolic resin for a water-soluble rock wool, an adhesive, a preparation method and an application thereof and belongs to the field of materials of building external walls. The molybdenum phenolic resin contains the following raw materials in parts by weight: 100 parts of phenol, 90-180 parts of formalin, 15-30 parts of ammonium molybdate, 8-16 parts of urea and 2-10 parts of organic base catalyst. According to the invention, the molybdenum phenolic resin (Mo-PF) for the water-soluble rock wool is compounded by taking phenol, formaldehyde and ammonium molybdate as main raw materials and organic base as catalyst under a certain condition; molybdenum element is bonded in a PF molecule main chain in the form of chemical bond, so that the heat resistance ofPF is promoted; the Mo-PF has the characteristics of low content of free phenol and free aldehyde, higher strength, higher stability, and the like; the stability of rock wool is promoted; the molybdenum phenolic resin can be used as a heat-insulating material on the exterior of the building external wall and also can be applied to a rock wool adhesive to be operated under the environment of hightemperature.

Description

technical field [0001] The invention relates to the field of building exterior wall materials, in particular to a water-soluble molybdenum phenolic resin for rock wool, an adhesive and a preparation method thereof. Background technique [0002] The main components of rock wool are basalt, dolomite, slag, etc., which are melted under high temperature by adding certain auxiliary raw materials and fuels, and converted into fibers by high-speed centrifugation, with appropriate amount of adhesives and other additives, and then pleated and placed. It is fixed and shaped by hammering and pressing, and processed into rock wool products such as felts, boards, and pipes with different uses and types according to specific requirements. [0003] Adhesive is very important in the rock wool production process, only the rock wool fiber with adhesive can be cured and formed in the curing furnace. Adhesives for rock wool mainly include water, water repellent, phenolic resin (PF), dustproof ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C08G8/10C09J161/14C04B26/12
CPCC04B26/12C08G8/10C08G8/28C09J161/14C04B14/46
Inventor 杨李宁王二强胡宝苓张迎新田俊岭
Owner 北京新时代寰宇科技发展有限公司
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