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Odorless silicone sealant

A silicone sealant and odor-cleaning technology, applied in adhesives, adhesive additives, and other chemical processes, can solve problems such as unsatisfactory bonding strength of coated glass, achieve super tensile strength, low odor, and compatibility good sex effect

Active Publication Date: 2015-02-25
LIAONING LVSHI CHEM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the bonding strength of existing silicone adhesives to coated glass is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 Odor-clean silicone sealant

[0018] (1) Made according to the following weight percentages:

[0019] Modified RTV Silicone Rubber 79.94%,

[0020] fumed silica 9.5%,

[0021] Simethicone 7.5%,

[0022] crosslinking agent 0.8%,

[0023] Titanate chelate (titanium complex) 1.4%,

[0024] Tin organocarboxylate (catalyst) 0.06%,

[0025] coupling agent 0.8%.

[0026] Among them, the preparation method of the modified room temperature vulcanized silicone rubber is as follows: add the room temperature vulcanized silicone rubber to the reaction kettle and stir to raise the temperature to 150 degrees, keep the temperature for about 1 hour, slowly add the coupling agent, stir, raise the temperature to 180 degrees, stir About 1 hour, then slowly lowered to room temperature.

[0027] (2) The preparation method is as follows:

[0028] Put the above materials into the high-speed disperser in order, vacuumize, stir well, and take samples for testing. ...

Embodiment 2

[0030] Example 2 Odor-clean silicone sealant

[0031] (1) Made according to the following weight percentages:

[0032] Modified RTV Silicone Rubber 76%,

[0033] fumed silica 11.3%,

[0034] Simethicone 9%,

[0035] crosslinking agent 1%,

[0036] Titanate chelate (titanium complex) 1.6%,

[0037] Tin organocarboxylate (catalyst) 0.1%,

[0038] coupling agent 1%.

[0039] Among them, the preparation method of the modified room temperature vulcanized silicone rubber is as follows: add the room temperature vulcanized silicone rubber to the reaction kettle and stir to raise the temperature to 150 degrees, keep the temperature for about 1 hour, slowly add the coupling agent, stir, raise the temperature to 180 degrees, stir About 1 hour, then slowly lowered to room temperature.

[0040] (2) The preparation method is as follows:

[0041] Put the above materials into the high-speed disperser in order, vacuumize, stir well, and take samples for testing.

[0042]...

Embodiment 3

[0043] Example 3 Odor-clean silicone sealant

[0044] (1) Made according to the following weight percentages:

[0045] Modified RTV Silicone Rubber 77.62%,

[0046] fumed silica 11%,

[0047] Simethicone 8%,

[0048] crosslinking agent 0.9%,

[0049] Titanate chelate (titanium complex) 1.5%,

[0050] Tin organocarboxylate (catalyst) 0.08%,

[0051] coupling agent 0.9%.

[0052] Among them, the preparation method of the modified room temperature vulcanized silicone rubber is as follows: add the room temperature vulcanized silicone rubber to the reaction kettle and stir to raise the temperature to 150 degrees, keep the temperature for about 1 hour, slowly add the coupling agent, stir, raise the temperature to 180 degrees, stir About 1 hour, then slowly lowered to room temperature.

[0053] (2) The preparation method is as follows:

[0054] Put the above materials into the high-speed disperser in order, vacuumize, stir well, and take samples for testing.

...

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PUM

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Abstract

The invention relates to odorless silicone sealant. The technical scheme is as follows: the odorless silicone sealant is prepared from the following raw materials in percentage by weight: 76-80% of modified room temperature vulcanized silicon rubber, 9-12% of gas-phase silicon dioxide, 7-9% of dimethyl silicon oil, 0.8-1% of crosslinking agent, 1.4-1.6% of titanium complex, 0.06-0.1% of catalyst and 0.8-1% of coupling agent. The silicone sealant provided by the invention causes no corrosion, can only release about 1% of small-molecule alcohol substances (methanol and ethanol) in the curing process, has low odor and is environment-friendly.

Description

technical field [0001] The invention relates to an adhesive, in particular to an environment-friendly odor-free silicone sealant. Background technique [0002] At present, there are many types of silicone adhesives on the market, and the scope of use is gradually expanding. From large-scale construction to handicraft bonding, silicone adhesives are inseparable. Silicone adhesives have become an invisible companion in people's daily life. At present, most of the silicone adhesives produced in China are ketone oxime type, which will release more than 3% of butanone oxime during the curing process, and long-term use will cause certain harm to the human body. Butanone oxime was recognized as a carcinogen by the US government in 2008, and was listed in the list of toxic chemicals by the Canadian government in 2010. Therefore be badly in need of developing the silicone glue of clean taste and environmental protection. In addition, the bonding strength of existing silicone adhesi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J11/06C09K3/10
Inventor 吕品吕征阳冯春雪李炳范王焕庆陈岩
Owner LIAONING LVSHI CHEM GROUP
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