Light release force solvent-free organic silicon release agent as well as preparation method and application

Abstract

The invention belongs to the field of release materials and discloses a light release force solvent-free organic silicon release agent as well as a preparation method and application. The light release force solvent-free organic silicon release agent disclosed by the invention comprises the following components in parts by mass: 100 parts of vinyl polysiloxane, 2-20 parts of hydrogen-containing polysiloxane, 2-10 parts of an anchoring agent, 2-10 parts of a fluorine-containing release force adjusting agent and 2-10 parts of a platinum catalyst, wherein the functional group ratio of vinyl polysiloxane to hydrogen-containing polysiloxane is H / Vi=1.0-5.0. The release agent disclosed by the invention is applied to release paper. The release paper prepared from the release agent has super lightrelease force, the normal-temperature release force of the release paper is as low as 1.3g / 25mm, the aging release force of the release paper is as low as 1.7g / 25mm, the release paper is stable in release property and can be applied to practical production processing, and the requirements of electronic processing industries on super light release force in application scenes are met.

Description

technical field

[0001] The invention belongs to the field of release materials, in particular to a solvent-free silicone release agent with light peeling force, a preparation method and application thereof. Background technique

[0002] Release agent, generally coated on the surface of the substrate, is used to isolate the viscous substance, so as to achieve the purpose of making the viscous substance easy to peel off from the substrate surface, while the viscous substance remains sticky. Among them, the base material is generally paper, and the release paper is prepared for self-adhesive labels; there are also base materials that are films, and the release film is prepared for the electronics industry, etc.

[0003] At present, the solvent-free addition type silicone release agent is the most used in the market. It has good curing performance, is easy to use, is harmless to the environment, and can conveniently adjust the size of the release force according to actual needs,...

Examples

Embodiment 1

[0034] A preparation of a solvent-free silicone release agent with light peeling force, the specific steps are as follows, parts by mass:

[0035] 1) According to the functional group ratio H / Vi=1.5, 100 parts of vinyl polysiloxane and 7 parts of hydrogen-containing polysiloxane;

[0036] 2) 10 parts of anchoring agent (3-glycidyl etheroxypropyl triethoxysilane), 3 parts of fluorine-containing release force regulator (4-ethoxy-1,1,1-trifluoro-3- buten-2-one);

[0037] 3) 5 parts of platinum catalysts;

[0038] 4) Mix the proportions of steps 1) 2) 3) according to the above experimental steps to prepare a release agent.

[0039] 5) Coat the release agent in step 4) on the glassine paper with a coater, and cure at 150° C. for 30 seconds to obtain a release paper. The normal temperature peeling force of the obtained release paper is 3g / 25mm, and the aging peeling force is 3.5g / 25mm.

Embodiment 2

[0041] A preparation of a solvent-free silicone release agent with light peeling force, the specific steps are as follows, parts by mass:

[0042] 1) According to the functional group ratio H / Vi=1.5, 100 parts of vinyl polysiloxane and 7 parts of hydrogen-containing polysiloxane;

[0043] 2) 10 parts of anchoring agent (3-glycidyl etheroxypropyl triethoxysilane), 8 parts of fluorine-containing release force regulator (4-butoxy-1,1,1-trifluoro-3- buten-2-one);

[0044] 3) 5 parts by weight of platinum catalysts;

[0045] 4) Mix the proportions of steps 1) 2) 3) according to the above experimental steps to prepare a release agent.

[0046] 5) Coat the release agent in step 4) on the glassine paper with a coater, and cure at 150° C. for 30 seconds to obtain a release paper. The normal temperature peeling force of the obtained release paper is 1.3g / 25mm, and the aging peeling force is 1.7g / 25mm.

Embodiment 3

[0048] A preparation of a solvent-free silicone release agent with light peeling force, the specific steps are as follows, parts by mass:

[0049] 1) According to the functional group ratio H / Vi=2, 100 parts of vinyl polysiloxane and 9 parts of hydrogen-containing polysiloxane;

[0050] 2) 10 parts of anchoring agent (3-glycidyl etheroxypropyl triethoxysilane), 8 parts of fluorine-containing release force regulator (1,1,1-trifluoro-3-hepten-2-one );

[0051] 3) 5 parts by weight of platinum catalysts;

[0052] 4) Mix the proportions of steps 1) 2) 3) according to the above experimental steps to prepare a release agent.

[0053] 5) Coat the release agent in step 4) on the glassine paper with a coater, and cure at 150° C. for 30 seconds to obtain a release paper. The normal temperature peeling force of the obtained release paper is 1.8g / 25mm, and the aging peeling force is 2.4g / 25mm.

technical field

[0001] The invention belongs to the field of release materials, in particular to a solvent-free silicone release agent with light peeling force, a preparation method and application thereof. Background technique

[0002] Release agent, generally coated on the surface of the substrate, is used to isolate the viscous substance, so as to achieve the purpose of making the viscous substance easy to peel off from the substrate surface, while the viscous substance remains sticky. Among them, the base material is generally paper, and the release paper is prepared for self-adhesive labels; there are also base materials that are films, and the release film is prepared for the electronics industry, etc.

[0003] At present, the solvent-free addition type silicone release agent is the most used in the market. It has good curing performance, is easy to use, is harmless to the environment, and can conveniently adjust the size of the release force according to actual needs,...

Examples

Embodiment 1

[0034] A preparation of a solvent-free silicone release agent with light peeling force, the specific steps are as follows, parts by mass:

[0035] 1) According to the functional group ratio H / Vi=1.5, 100 parts of vinyl polysiloxane and 7 parts of hydrogen-containing polysiloxane;

[0036] 2) 10 parts of anchoring agent (3-glycidyl etheroxypropyl triethoxysilane), 3 parts of fluorine-containing release force regulator (4-ethoxy-1,1,1-trifluoro-3- buten-2-one);

[0037] 3) 5 parts of platinum catalysts;

[0038] 4) Mix the proportions of steps 1) 2) 3) according to the above experimental steps to prepare a release agent.

[0039] 5) Coat the release agent in step 4) on the glassine paper with a coater, and cure at 150° C. for 30 seconds to obtain a release paper. The normal temperature peeling force of the obtained release paper is 3g / 25mm, and the aging peeling force is 3.5g / 25mm.

Embodiment 2

[0041] A preparation of a solvent-free silicone release agent with light peeling force, the specific steps are as follows, parts by mass:

[0042] 1) According to the functional group ratio H / Vi=1.5, 100 parts of vinyl polysiloxane and 7 parts of hydrogen-containing polysiloxane;

[0043] 2) 10 parts of anchoring agent (3-glycidyl etheroxypropyl triethoxysilane), 8 parts of fluorine-containing release force regulator (4-butoxy-1,1,1-trifluoro-3- buten-2-one);

[0044] 3) 5 parts by weight of platinum catalysts;

[0045] 4) Mix the proportions of steps 1) 2) 3) according to the above experimental steps to prepare a release agent.

[0046] 5) Coat the release agent in step 4) on the glassine paper with a coater, and cure at 150° C. for 30 seconds to obtain a release paper. The normal temperature peeling force of the obtained release paper is 1.3g / 25mm, and the aging peeling force is 1.7g / 25mm.

Embodiment 3

[0048] A preparation of a solvent-free silicone release agent with light peeling force, the specific steps are as follows, parts by mass:

[0049] 1) According to the functional group ratio H / Vi=2, 100 parts of vinyl polysiloxane and 9 parts of hydrogen-containing polysiloxane;

[0050] 2) 10 parts of anchoring agent (3-glycidyl etheroxypropyl triethoxysilane), 8 parts of fluorine-containing release force regulator (1,1,1-trifluoro-3-hepten-2-one );

[0051] 3) 5 parts by weight of platinum catalysts;

[0052] 4) Mix the proportions of steps 1) 2) 3) according to the above experimental steps to prepare a release agent.

[0053] 5) Coat the release agent in step 4) on the glassine paper with a coater, and cure at 150° C. for 30 seconds to obtain a release paper. The normal temperature peeling force of the obtained release paper is 1.8g / 25mm, and the aging peeling force is 2.4g / 25mm.

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