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Preparation method of silane coupling agent containing allyl sulfydryl and amino and usage thereof

An allyl mercapto, silane coupling agent technology, applied in chemical instruments and methods, adhesive additives, non-polymer adhesive additives, etc., can solve the problem of damage to surface hardness, wear resistance, scratch resistance, Problems such as prolonging the time of radiation curing

Inactive Publication Date: 2010-06-23
浙江凌志新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inhibition of oxygen not only prolongs the time of radiation curing, but also may impair the important properties of the cured surface such as hardness, abrasion resistance, scratch resistance, etc.

Method used

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  • Preparation method of silane coupling agent containing allyl sulfydryl and amino and usage thereof
  • Preparation method of silane coupling agent containing allyl sulfydryl and amino and usage thereof
  • Preparation method of silane coupling agent containing allyl sulfydryl and amino and usage thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Add 1, 1.5 and 2 moles of allylthiourea to 1 mole (MeO) 2 CH 3 SiC 3 h 6 NH 2 (trade mark is DB-912) to react, and the reaction formula is as follows.

[0048] The product is called 9S for short, and the excess allyl mercaptan will continue to react with the product to generate an active monomer containing two allyl groups.

[0049]

[0050] or a mixture of both.

[0051] The infrared spectrum of allylthiourea and 9S is shown in figure 1 . It is reported in the currently available literature that the absorption of the generated thiol S-H is very weak, and it is difficult to see it in slightly long-chain compounds. Therefore, it can only be judged whether it is the target product by the disappearance of the C=S bond. 735~1624cm on the map of allylthiourea -1 The several peaks in between are attributed to the vibration of the interaction between the C=S stretching vibration and the C-N stretching vibration. In this area, 9S basically has no absorption peak, a...

Embodiment 2

[0056] Add 1, 1.5 and 2 moles of allylthiourea to 1 mole (MeO) 3 SiC 3 h 6 NHC 2 h 4 NH 2 (commercial brand is 792) and reacts, and reaction formula is as follows:

[0057]

[0058] or a mixture of both.

[0059] The product is referred to as 7S, and the excess allyl mercaptan will continue to react with the product to generate an active monomer containing two allyl groups.

[0060] The infrared spectrum of 7S and allyl mercaptan is shown in figure 2 . with on Figure 1 In the same way, whether it is the target product can be judged by the disappearance of the C=S bond. 735~1624cm on the map of allylthiourea -1 The several peaks in between are attributed to the vibration of the interaction between the C=S stretching vibration and the C-N stretching vibration. In this region, 7S basically has no absorption peak. On the 7S spectrum, 1089cm -1 The peak at is attributed to Si-OCH 3 vibration absorption. It can be seen that there is no C=S bond on the generated 9...

Embodiment 3

[0066] Mix 60 parts of acryloxy-terminated polydimethylsiloxane, 30 parts of propylene glycol diacrylate (TPGDA), 6 parts of trimethylolpropane triacrylate (TMPTA) and 4 parts of photoinitiator, and stir evenly. The bubbles are released to obtain a UV-curable silicone material. Keep away from light.

[0067] Coat the prepared UV-curable material on a glass sheet, and irradiate it with a 400-watt UV lamp for five minutes at room temperature. The bottom layer can be cured, but the surface layer cannot be cured due to oxygen inhibition, and the surface layer cannot be cured after continuous irradiation for 20 minutes. .

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Abstract

The invention discloses a preparation method of a silane coupling agent containing allyl sulfydryl and amino and a usage thereof. The molecular structural formula of the silane coupling agent is (R1O)3-xSiR2xR3(NHR4)yNHz(SHCNH2NHCH2CH=CH2)m. The silane coupling agent is obtained through addition reaction of 1-2 mole allylthiourea and 1 mole silane coupling agent with the molecular formula of (R1O)3-xSiR2xR3(NHR4)yNH2, wherein R1 and R2 are straight chain or branched alkyl of same or different 1-6 carbon atoms, R3 is alkylidene and aryl of 1-6 carbon atoms or aryl alkylidene and alkyl arylene of 6-10 carbon atoms, and R4 is alkylidene of 1-6 carbon atoms, x is 0 or 1, y is 0, 1 or 2, z is 0 or 1, and m is 2-z. Compared with the traditional allyl monomer, the silane coupling agent can be used as active diluent monomer of ultraviolet curing prepolymer, the sulfydryl is contained in the molecule, the inhibition of the oxygen to the ultraviolet curing process can be effectively reduced, the ultraviolet curing speed is improved, the function of the silane coupling agent can be brought into play, and the adhesion function of the coating adhesive and the matrix is improved.

Description

technical field [0001] The invention relates to a preparation method and application of a silane coupling agent containing allyl mercapto and amino groups. Background technique [0002] In the UV curing system, the monofunctional monomer mainly acts as a diluent in the system, but it has a great influence on the dissolution of the photoinitiator, the curing rate, the flexibility, hardness, durability of the cured film, and the sensitivity to various substrates. Adhesion, etc. have a great influence. The silane coupling agent is a kind of low-molecular-weight organosilicon compound with a special structure. It also has a reactive group that can combine with inorganic materials and organic materials. It can build a molecular bridge between the interfaces and combine two materials with different properties. Coupled together to improve the bonding strength of the interface layer. Therefore, the mechanical properties and hydrolysis resistance of composite materials can be impro...

Claims

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Application Information

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IPC IPC(8): C08K5/548C07F7/18C09D7/12C09J11/06
Inventor 陈世龙高传花
Owner 浙江凌志新材料有限公司
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