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High-transparency MS adhesive with pencil hardness of 3H and preparation method thereof
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A pencil-hard, transparent technology
Active Publication Date: 2020-12-04
深圳市安伯斯科技有限公司
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[0003] However, the adsorption layer of tempered glass film on the market is silica gelcoating, the main chain of the silica gelsystem has good flexibility, and it is difficult to achieve the hardness of 3H through process treatment, which will limit the performance optimization of tempered glass film
Since MS glue was developed in 1979, it has been widely used in construction, automobile, decoration and manual fields, but MS glue usually chooses inorganic powder, such as white carbon black, as a reinforcing material, which will affect the transparency of MS glue And yellowing resistance, limit the use of MS glue, especially in the field of mobile phones
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Embodiment 1
[0033]A highly transparent MS glue with a pencil hardness of 3H. It is composed of the basic resin PPGMS, ethyl orthosilicate, γ-glycidoxypropyltrimethoxysilane, and bis-[3-(triethoxysilicon)-propane Yl)-amine, ALink-600, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, β-(3,5-di-tert-butyl-4- Hydroxyphenyl) propionate n-octadecyl alcohol ester and chelating tin U-202H; the base resin PPGMS is composed of 100 parts of PPG-1000, 55 parts of MDI-50 and 52 parts of N-(n-butyl Base)-3-aminopropyltrimethoxysilane; base resin PPGMS, ethyl orthosilicate, γ-glycidoxypropyltrimethoxysilane, bis-[3-(triethoxysilicon)- Propyl)-amine, ALink-600, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionate n-octadecyl alcohol ester and chelated tin U-202H are respectively:
[0034]
Embodiment 2
[0036]A highly transparent MS glue with a pencil hardness of 3H. It is composed of the basic resin PPGMS, ethyl orthosilicate, γ-glycidoxypropyltrimethoxysilane, and bis-[3-(triethoxysilicon)-propane Yl)-amine, ALink-600, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, β-(3,5-di-tert-butyl-4- Hydroxyphenyl) n-octadecyl propionate and chelating tin KRA-1; the base resin PPGMS is composed of 100 parts of PPG-1000, 55 parts of MDI-50 and 50 parts of N-(n-butyl Base)-3-aminopropyltrimethoxysilane; base resin PPGMS, ethyl orthosilicate, γ-glycidoxypropyltrimethoxysilane, bis-[3-(triethoxysilicon)- Propyl)-amine, ALink-600, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionate n-octadecyl alcohol ester and the mass ratio of chelated tin KRA-1 are:
[0037]
Embodiment 3
[0039]A highly transparent MS glue with a pencil hardness of 3H, composed of the basic resin PPGMS, ethyl orthosilicate, γ-glycidoxypropyltrimethoxysilane, and bis-[3-(triethoxysilica)-propane Yl)-amine, ALink-600, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, β-(3,5-di-tert-butyl-4- Hydroxyphenyl) octadecyl propionate and chelated tin U-202H; the base resin PPGMS consists of 100 parts of PPG-1000, 52 parts of MDI-50 and 47 parts of N-(n-butyl Base)-3-aminopropyltrimethoxysilane; base resin PPGMS, ethyl orthosilicate, γ-glycidoxypropyltrimethoxysilane, bis-[3-(triethoxysilicon)- Propyl)-amine, ALink-600, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionate n-octadecyl alcohol ester and chelated tin U-202H mass ratio are:
[0040]
[0041]The performance test of the highly transparent MS glue with a pencil hardness of 3H described in the examples is carried out by the following method:
[0042](1) Measurement of hardness
[0043]The hardness i...
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Abstract
The invention discloses a high-transparency MS adhesive with pencil hardness of 3H. The adhesive is composed of the following components in parts by mass: 100 parts of base resin PPGMS, 3-6 parts of tetraethoxysilane, 2-3 parts of gamma-glycidyloxypropyltrimethoxysilane, 1 part of bis[3-(triethoxysilyl)propyl]amine, 3-5 parts of ALink-600, 1-1.5 parts of a light stabilizer, 0.5-1 part of an antioxidant and 0.5-1 part of a chelated tin catalyst, wherein the base resin PPGMS is composed of the following components in parts by mass: 100 parts of PPG-1000, 50-55 parts of MDI-50 and 47-52 parts ofN-(3-(trimethoxysilyl)propyl)butylamine. The invention also discloses a method for preparing the high-transparency MS adhesive with pencil hardness of 3H. The obtained MS adhesive has the characteristics of high transparency, environmental protection, no peculiar smell, accordance with the environmental protection requirements of European Union, surface hardness of pencil hardness 3H and good weather resistance.
Description
Technical field[0001]The invention belongs to the field of mobile phone screen protection, and specifically relates to a highly transparent MS glue with a pencil hardness of 3H and a preparation method thereof.Background technique[0002]The popularity of smart phones has given birth to the upstream industries of mobile phones, such as the development of mobile phone glass screen protectors. At present, the mobile phone film on the market can be generally divided into two types: plastic film and tempered glass film. Plastic film has a lower surface hardness and is easy to scratch. Tempered glass film has a higher surface hardness and is very good. Abrasion resistance. Compared with plastic film, tempered glass film has the characteristics of high hardness and low toughness. When the mobile phone transmits stress, the film bears tension, reducing the tension of the main screen, so as to achieve the effect of protecting the glass screen.[0003]However, the adsorption layer of the tempere...
Claims
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Application Information
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