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Flame-retardant silicone sealant for aluminum alloy doors and windows and preparation method thereof

A technology of silicone sealant and aluminum alloy doors and windows, applied in the field of sealant, can solve the problems of poor comprehensive performance and long service life of silicone sealant, and achieve the requirements of mass production, easy operation and improved dispersibility. Effect

Pending Publication Date: 2022-04-12
ANHUI PROVINCE JINPENG ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In response to the above problems, the object of the present invention is to propose a flame-retardant silicone sealant for aluminum alloy doors and windows and a preparation method thereof. The silicone sealant has the advantage of high thermal stability through polyurethane itself, and is combined with phosphate ester After the flame retardant is used together, it can further enhance its thermal stability and produce excellent flame retardant properties. The elongation and tear resistance of silicone sealants are improved by adding pre-treated calcium carbonate. By adding white The mixed filler composed of carbon black, quartz powder, glass fiber and silica enhances the interaction force between the silicone sealant chains, thereby increasing the strength, thereby solving the problem of poor comprehensive performance and short service life of traditional silicone sealants. question

Method used

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  • Flame-retardant silicone sealant for aluminum alloy doors and windows and preparation method thereof
  • Flame-retardant silicone sealant for aluminum alloy doors and windows and preparation method thereof

Examples

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Embodiment 1

[0022] This embodiment provides a flame-retardant silicone sealant for aluminum alloy doors and windows, including the following raw materials in parts by weight: 80 parts of polydimethylsilicone oil, 10 parts of polyurethane, 5 parts of crosslinking agent, and 5 parts of plasticizer parts, 10 parts of mixed filler, 5 parts of calcium carbonate, 7 parts of catalyst, 7 parts of thixotropic agent, 6 parts of coupling agent, 7 parts of phosphate ester flame retardant, 8 parts of tackifier and 10 parts of auxiliary agent, of which poly The viscosity of methyl silicone oil is 1000mPa·s, and the dielectric constant is 2.76. The crosslinking agent is methyltriacetoneximosilane, and the mixed filler is composed of white carbon black, quartz powder, glass fiber and silicon dioxide. The mass ratio is 2:1:1:2, the catalyst is prepared by mixing stannous octoate and dibutyltin dilaurate at a mass ratio of 1:1, and the thixotropic agent is a polyamide compound , the plasticizer is a phthal...

Embodiment 2

[0028]This embodiment provides a flame-retardant silicone sealant for aluminum alloy doors and windows, including the following raw materials in parts by weight: 100 parts of polydimethylsilicone oil, 20 parts of polyurethane, 10 parts of crosslinking agent, and 7 parts of plasticizer parts, 20 parts of mixed fillers, 10 parts of calcium carbonate, 9 parts of catalysts, 10 parts of thixotropic agents, 8 parts of coupling agents, 13 parts of phosphate ester flame retardants, 12 parts of tackifiers and 15 parts of additives. The viscosity of methyl silicone oil is 5000mPa·s, the dielectric constant is 2.78, the crosslinking agent is methyl tributylketoxime silane, and the mixed filler is composed of white carbon black, quartz powder, glass fiber and silicon dioxide Prepared by mixing at a mass ratio of 2:1:1:2, the catalyst is prepared by mixing stannous octoate and dibutyltin dilaurate at a mass ratio of 1:1, and the thixotropic agent is polyamide compound, the plasticizer is a...

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Abstract

The invention discloses a flame-retardant silicone sealant for aluminum alloy doors and windows and a preparation method thereof, and the flame-retardant silicone sealant comprises the following raw materials: polydimethyl silicone oil, polyurethane, a cross-linking agent, a plasticizer, a mixed filler, calcium carbonate, a catalyst, a thixotropic agent, a coupling agent, a phosphate flame retardant, a tackifier and an auxiliary agent. The preparation method comprises the following steps: weighing and storing the raw materials for later use, stirring the main materials, adding the auxiliary materials, mixing and stirring, and preparing a finished product. The polyurethane has the advantage of high thermal stability, the thermal stability of the polyurethane can be further enhanced after the polyurethane is matched with the phosphate flame retardant for use, excellent flame retardance is generated, the elongation and tear resistance of the silicone sealant are improved by adding the pretreated calcium carbonate, and the service life of the silicone sealant is prolonged. By adding the mixed filler consisting of white carbon black, quartz powder, glass fiber and silicon dioxide, the interaction force between silicone sealant chains is enhanced, so that the strength is improved, and the service life of the silicone sealant is prolonged to a certain extent.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a flame-retardant silicone sealant for aluminum alloy doors and windows and a preparation method thereof. Background technique [0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, stiles, and fan materials. They are called aluminum alloy doors and windows, referred to as aluminum doors and windows. Composite doors and windows, referred to as aluminum-wood composite doors and windows, aluminum-plastic composite doors and windows, aluminum alloy doors and windows are mostly covered with glass by door frames. According to the material and function of doors and windows, they can be roughly divided into the following categories: wooden doors and windows, steel doors and windows, revolving doors Anti-theft doors, automatic doors, plastic doors and windows, revolving doors, iron flower doors and windows, plastic steel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J175/04C09J11/04C09J11/06
Inventor 石文磊
Owner ANHUI PROVINCE JINPENG ENERGY SAVING TECH CO LTD
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