Butyl rubber sealant for hollow glass and preparation method of butyl rubber sealant

A technology of butyl rubber and sealant, applied in chemical instruments and methods, adhesives, other chemical processes, etc., can solve the problems of hollow glass failure, not having too high cold flow, affecting the use effect, etc., and achieve good sealing effect , The effect of low water vapor transmission rate

Inactive Publication Date: 2017-09-26
HUBEI XINHAIHONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the water vapor transmission rate of a sealant is high, water vapor penetrates into the insulating glass through the first sealant, and the insulating glass is prone to dew point phenomenon, which makes the insulating glass invalid.
Insulating glass has been used outdoors for a long time, exposed to direct sunlight, and the temperature in summer may be as high as 60°C. The sealant will experience cold flow at high temperature, which will affect the use effect. Therefore, the butyl sealant applied to the insulating glass should not have too high a temperature. Cold flow, long-term use without deformation after bonding to glass

Method used

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  • Butyl rubber sealant for hollow glass and preparation method of butyl rubber sealant
  • Butyl rubber sealant for hollow glass and preparation method of butyl rubber sealant
  • Butyl rubber sealant for hollow glass and preparation method of butyl rubber sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017]

[0018] This embodiment provides a preparation method of butyl rubber sealant for insulating glass, comprising the following steps:

[0019] Put 50 parts of butyl rubber, 10 parts of petroleum resin, 0.3 parts of deformed ethanol, and 1 part of petroleum solvent that have been crushed on the open mill into the gravity kneader, start the heater, and when the oil temperature reaches 200-220 ° C, keep warm Start the kneader after 30-50 minutes, open the cover after kneading for 2 hours, put 1.5 parts of modified bentonite, 15 parts of calcium carbonate, and 5 parts of fibrous talc into the kneader and knead for 1.5-3 hours, then start vacuuming. When it reaches 0.085Mpa, start counting, continue kneading for 120 minutes, extrude, shape, and cool to obtain butyl rubber sealant for insulating glass.

Embodiment 2

[0021]

[0022] This embodiment provides a preparation method of butyl rubber sealant for insulating glass, comprising the following steps:

[0023] Put 55 parts of butyl rubber, 12 parts of petroleum resin, 0.3 parts of deformed ethanol, and 1 part of petroleum solvent that have been crushed on the open mill into the gravity kneader, start the heater, and when the oil temperature reaches 200-220 ° C, keep warm Start the kneader after 30-50 minutes, open the cover after kneading for 2 hours, put 1.5 parts of modified bentonite, 20 parts of calcium carbonate, and 4 parts of fibrous talc into the kneader and knead for 1.5-3 hours, then start vacuuming. When it reaches 0.08Mpa, start counting, continue kneading for 150 minutes, extrude, shape, and cool to obtain butyl rubber sealant for insulating glass.

Embodiment 3

[0025]

[0026] This embodiment provides a preparation method of butyl rubber sealant for insulating glass, comprising the following steps:

[0027] Put 60 parts of butyl rubber, 15 parts of petroleum resin, 0.5 parts of deformed ethanol and 1 part of petroleum solvent that have been crushed on the open mill into the gravity kneader, start the heater, and when the oil temperature reaches 200-220 ° C, keep warm Start the kneader after 30-50 minutes, open the cover after kneading for 2 hours, put 2 parts of modified bentonite, 18 parts of calcium carbonate, and 5 parts of fibrous talc into the kneader and knead for 1.5-3 hours, then start vacuuming. When it reaches 0.095Mpa, start counting, continue kneading for 150 minutes, extrude, shape, and cool to obtain butyl rubber sealant for insulating glass.

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Abstract

The invention discloses a butyl rubber sealant for hollow glass. The butyl rubber sealant is prepared from the following components in parts by weight: 50 to 60 parts of butyl rubber, 10 to 15 parts of a tackifier, 0.3 to 0.5 part of denatured alcohol, 1.5 to 2 parts of modified bentonite, 15 to 20 parts of filler, 4 to 5 parts of fibrous talc and 1 to 3 parts of a petroleum solvent. According to the butyl rubber sealant for the hollow glass, disclosed by the invention, the sealant is used for sealing, and the sealing effect is good; a cold flow rate is nearly zero and a transmission ratio of water vapor is extremely low under an extremely cold temperature or high temperature condition; all properties meet the utilization requirements of the hollow glass.

Description

technical field [0001] The invention relates to a sealing material for insulating glass, which can be used for the first sealing of insulating glass, and can also be used for structural sealing of insulating glass, specifically a butyl rubber sealant for insulating glass and a preparation method thereof. Background technique [0002] Insulating glass generally needs to be sealed twice. The first seal is butyl sealant, and the second seal is silicone sealant. The first seal is the inner seal, which plays the role of isolating water vapor and air; the second seal is the outer seal, which plays a structural role. Therefore, the first seal of insulating glass must use hot-melt butyl sealant with extremely low water vapor transmission rate. If the water vapor transmission rate of a sealant is high, the water vapor penetrates into the insulating glass through the first sealant, and the insulating glass is prone to dew point phenomenon, which makes the insulating glass invalid. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/22C09J11/04C09J11/06C09J11/08C09K3/10
CPCC09J123/22C08K2003/265C08K2201/014C08L2205/03C09J11/04C09J11/06C09J11/08C09K3/1006C08L57/02C08L45/00C08K13/04C08K3/26C08K7/10C08K5/05C08K3/346
Inventor 陶明海
Owner HUBEI XINHAIHONG CHEM
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