Double-component modified polyether sealant and preparation method thereof

A technology of silane-modified polyether and sealant, which is applied in the field of sealant, can solve the problems of short operation time, long curing cycle of sealant, affecting the construction and use of sealant, etc., to prolong the operation time and shorten the curing cycle Effect

Inactive Publication Date: 2018-10-19
HANGZHOU ZHIJIANG NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the curing cycle of these one-component sealants is longer and the operation time is shorter, which affects the actual construction and use of sealants

Method used

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  • Double-component modified polyether sealant and preparation method thereof
  • Double-component modified polyether sealant and preparation method thereof
  • Double-component modified polyether sealant and preparation method thereof

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preparation example Construction

[0059] The present invention also provides a method for preparing the two-component modified polyether sealant described in the above technical solution, comprising the following steps:

[0060] a) After mixing and heating silane-modified polyether, first plasticizer, first filler, ultraviolet absorber, light stabilizer and thixotropic agent, adding acrylic resin and glass microspheres to obtain material A;

[0061] mixing the curing agent, the curing accelerator, the second plasticizer and the second filler to obtain material B;

[0062] b) Mixing the material A and material B to obtain a sealant.

[0063] Wherein, the silane modified polyether, the first plasticizer, the first filler, the ultraviolet absorber, the light stabilizer, the thixotropic agent, the acrylic resin, the glass microsphere, the curing agent, the curing accelerator, the second plasticizer The type, amount and source of the agent and the second filler are consistent with those described in the above-ment...

Embodiment 1

[0073] Raw materials: 100 parts of silane modified polyether S510H, 100 parts of the first plasticizer diisononyl phthalate, 165 parts of the first filler heavy calcium, 3 parts of ultraviolet absorber UV326, 3 parts of light stabilizer 292, thixotropic 10 parts of polyamide wax, 5 parts of propane trimethylol triacrylate resin, 20 parts of glass microspheres (20-120 μm); 3 parts of curing agent 2-ethylhexanoic acid tin (Ⅱ), curing accelerator triethylene dodeca 0.6 parts of amine, 10 parts of the second plasticizer diisononyl phthalate, and 20 parts of the second filler kaolin.

[0074] Preparation: Put the silane-modified polyether, the first plasticizer, the first filler, the ultraviolet absorber, the light stabilizer and the thixotropic agent into the double planetary mixer and stir evenly, heat it to 70°C for 1 hour, and evacuate to Remove water at -0.09~-0.01MPa, then cool down to 40°C, add resin and glass microspheres, stir evenly under vacuum to obtain material A. Put...

Embodiment 2

[0076] Raw materials: 100 parts of silane-modified polyether S520H, 100 parts of the first plasticizer diisooctyl phthalate, 165 parts of the first filler nano-calcium carbonate (particle size ≤ 120nm), 1 part of ultraviolet absorber UV320, photostable 1 part of agent 765, 3 parts of thixotropic agent hydrogenated castor oil, 3 parts of propane trimethylol triacrylate resin, 10 parts of glass microspheres (20-120 μm); 3 parts of curing agent dibutyltin dilaurate, 12 parts of curing accelerator 0.6 parts of primary alkyl amine, 6.4 parts of the second plasticizer di-isooctyl phthalate, and 20 parts of the second filler heavy calcium.

[0077] Preparation: Put the silane-modified polyether, the first plasticizer, the first filler, the ultraviolet absorber, the light stabilizer and the thixotropic agent into the double planetary mixer, stir evenly, heat to 80°C for 1 hour, and vacuumize to Remove water at -0.09~-0.01MPa, then cool down to 40°C, add resin and glass microspheres, s...

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Abstract

The invention provides a double-component modified polyether sealant and a preparation method thereof. The sealant provided by the invention is prepared from a material A and a material B, wherein thematerial A is prepared from silane-modified polyether, a first plasticizer, a first filler, an ultraviolet absorbent, a light stabilizer, a thixotropic agent, acrylic resin and glass microspheres; the silane-modified polyether is selected from one or more of organosilyl polyether with the end group being triethoxy, and organosilyl polyether with the end group being methyl dimethoxy; the materialB is prepared from a curing agent, a curing accelerator, a second plasticizer and a second filler; the curing agent is an organic tin curing agent; the curing accelerator is an amine accelerator; themass ratio of the material A to the material B is 100: (4 to 15). The material A and the material B are combined. The curing period of the sealant can be shortened, and the operable time is prolonged.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a two-component modified polyether sealant and a preparation method thereof. Background technique [0002] Sealant is a necessary material for prefabricated buildings, mainly used to seal and waterproof prefabricated buildings. Prefabricated buildings have a long history. The wooden frame spliced ​​houses used in the immigration to the Americas in the 17th century are a kind of prefabricated buildings. The Crystal Palace built in London in 1851 with an iron frame and embedded glass was the first large-scale prefabricated building in the world. After the Second World War, the housing shortage in European countries and Japan and other countries was serious, and it was urgent to solve the housing problem, which promoted the prefabricated building. development of the building. By the 1960s, prefabricated buildings had been widely promoted. As early as 60 years ago, my country als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/04C09J11/06C09J11/08
CPCC09J4/06C09J11/04C09J11/06C09J11/08
Inventor 刘伟明陈军沈峰陈丹刘明何永富
Owner HANGZHOU ZHIJIANG NEW MATERIAL CO LTD
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