37results about How to "Stable release force" patented technology

The invention relates to a manufacturing method and a system of a radio frequency self-adhesive label, and the manufacturing method of the radio frequency self-adhesive label comprises the following steps: a) using conductive ink to print an antenna on an inner layer of a surface material film of a thin film; b) mounting a chip; c) testing an electronic device; d) coating silicone oil on the surface of a release material substrate; e) curing a silicone oil release layer; f) coating hot melt adhesive on the silicone oil release layer; g) curing the hot melt adhesive; h) compounding the tested electronic device layer with the release layer coated with the adhesive; i) carrying out die cutting and waste discharge; and j) taking up and obtaining a finished product which can be stuck automatically or manually. The manufacturing method of the radio frequency self-adhesive label can meet the technical requirements of the market on the radio frequency self-adhesive label, has significant advantages in the aspects of manufacturing efficiency, product yield, durability and economy, and can solve the shortcomings of the existing process, and the popularization of the manufacturing method of the radio frequency self-adhesive label is conductive to the wide applications of the radio frequency technology.

The invention discloses a color polytetrafluoroethylene release film and a preparation method thereof. The color polytetrafluoroethylene release film is prepared through the following steps: blending polytetrafluoroethylene resin and a pigment according to a weight ratio of 100:1-10, and carrying out treatments of pre-forming, sintering, turning and rolling to prepare the color polytetrafluoroethylene release film. According to the present invention, the color polytetrafluoroethylene release film of the present invention has excellent anti-sticking property and surface smoothness of the polytetrafluoroethylene, and can provide light and stable release force during stripping; the color polytetrafluoroethylene release film of the present invention further has characteristics of weathering resistance, temperature resistance, chemical stability, and other excellent properties of the polytetrafluoroethylene, and has bright color, such that the application range is wide; the preparation method is simple, and is convenient to operate.

Disclosed is a film material for PE coated paper. Raw material formula of the film material is composed of 71.2-90.8% of a polymer, 0.2-1.2% of a lubricant and 9-27.6% of a fogging filler, wherein the polymer is selected from the group consisting of polyethylene, polypropylene, PVC and PET; and the filler is solid particles with the particle size being 3-20 micrometers. A fogging-surface release film with stable release force and good pressure-sensitive adhesive surface fogging effect can be produced, thus reaching low reflection effect of transfer adhesive surface. The production technology is simple, equipment investment cost is low and equipment is convenient to operate.

The invention discloses an anti-scuffing matt-surface antistatic release paper. The anti-scuffing matt-surface antistatic release paper comprises a release raw paper and a film layer. The other surface of the film layer is coated with a matt-surface antistatic layer having thickness of 0.2 to 2 micrometers. The other surface of the matt-surface antistatic layer is coated with a silicone oil layer. The surface of the matt-surface antistatic layer contacting with the silicone oil layer is provided with multiple concave and convex points. The matt-surface antistatic layer comprises 2 to 6% of silica particles, 20 to 30% of acrylic polyol having average molecular weight of 500 to 2000, 35 to 45% of polyoxyalkylene polyol having average molecular weight of 200 to 2500, 15 to 20% of polyethylene glycol, 4 to 8% of cyclomethyl siloxane, and 5 to 10% of 1-hydroxycyclohexylphenyl ketone-photoinitiator 184. The anti-scuffing matt-surface antistatic release paper solves the problem that the existing release paper has poor adhesion between a lamination layer and a release agent coating and unstable peel strength, improves antistatic performances of the film surface, and improves scuffing resistance.

The invention belongs to the field of chemical synthesis, and particularly relates to a spherical dendritic organic silicon macromolecule, a preparation method thereof and an application. The structural formula of the spherical dendritic organic silicon macromolecule is indicated in a formula I. The spherical dendritic organic silicon macromolecule is synthesized by a two-step circulation method, and then the synthesized spherical dendritic organic silicon macromolecule serves as a cross-linking compensation point and is applied to a solvent-free polysiloxane compound SL. The two-step circulation method includes hydrosilylation and nucleophilic substitution. Active sites capable of diverging are led into annular siloxane in the hydrosilylation. The nucleophilic substitution aims to lead in more cross-linking reaction sites and ensure that the solvent-free polysiloxane compound obtains a curing coating with a perfect cross-linking network structure when cured on a sheet substrate, so that stable performance of an anti-adhesion coating is ensured.

The invention provides a special release film for an MLCC, which is specifically composed of the following components: 100 parts of vinyl-terminated organic silicon resin, 1-10 parts of methyl hydrogen silicone oil, 0.3-3 parts of fluorine-containing polysiloxane, 1-5 parts of anchoring agent, 1-5 parts of catalyst and 500-1000 parts of solvent. Compared with a common release film, the special release film for the MLCC is stable in release force and has the characteristics of excellent aging resistance, high light transmittance, low haze and the like; the residual adhesion rate is greater than 85%, the functionality is stronger during use, and the practical effect is improved.

The invention belongs to the technical field of release films, and provides an ultralight release force free radical photocuring release film which comprises the following components in parts by weight: 40-140 parts of polysiloxane, 0.8-1.5 parts of a leveling agent, 0-5 parts of an adhesion additive, 1-5 parts of an antistatic agent, 1-2 parts of fumed silica powder and 3-4 parts of a photoinitiator. The invention also provides a preparation method of the ultralight release force free radical photocuring release film. The release film disclosed by the invention is stable in chemical and physical properties, stable in release force and anti-static capability, good in adhesive force and less in silicon transfer; 20-minute release force and aging release force of the release film can be stably and accurately controlled to be 1-2.5 cN/2.5 cm, and 24-hour residual adhesive force is larger than 85%. The process is simple, one-time operation is completed, the production efficiency is high, the cost is low, and few waste materials are generated in production.

The invention discloses a fluorine-containing paint and a preparation method thereof, and a fluorine release film based on coating by the fluorine-containing paint. The fluorine-containing paint usesa basic paint as a main body, and then fluorine-containing epoxy resin and diethanol amine are added; a reaction is carried out under the conditions of a pH value of 8 to 9 and a temperature of 40 to50 DEG C for 5 to 6 h so as to obtain the fluorine-containing paint; and reaction process is simple, reaction conditions are mild, and the reaction can be easily implemented. The fluorine release filmuses the fluorine-containing paint as a release layer; an adhesive layer, a first middle layer and a second middle layer are arranged between a base layer and the release layer; and the outer side ofthe base layer is provided with a thermal insulation layer. Through interaction among the above six structures, the fluorine release film has stable release force and resistance to high temperature and ageing, and does not produce chips and burrs during die cutting.

The invention belongs to the technical field of electronic materials, and particularly relates to a release film for a circuit board. The release film comprises a supporting layer, an adhesive layer,an aluminum foil layer and a release heat sealing layer. The release heat sealing layer comprises vinyl functionalized acrylic resin, allyl phenyl ether, polyvinyl alcohol, poly(3, 4-ethylene dioxythiophene), alumina coated superfine barium titanium, nano silicon dioxide, nano zirconium dioxide and curing agent. The release film has stable hot melting performance within a wide temperature range, thereby having high sealability with the circuit board; adhesion strength of the release heat sealing layer to the aluminum foil layer is higher than that of the same to the circuit board, so that stripping of the release heat sealing layer from the circuit board is facilitated, the release heat sealing layer cannot be transferred onto a circuit board material when being torn off, and appearance uniformity of the circuit board is ensured.

The invention discloses an antistatic optical release film for a polaroid. The antistatic optical release film comprises a release layer, a base material layer and an antistatic layer from top to bottom, and the release layer comprises the following components in parts by weight: 20-40 parts of vinyl polydimethylsiloxane, 3-8 parts of hydrogen-containing polysiloxane, 0.5-1.5 parts of an anchoring agent, 0.05-0.2 part of chemically modified inorganic particles, 3-8 parts of fluorine modified organic silicon resin, 2-4 parts of a platinum catalyst and 130 parts of an organic solvent. The release film has the characteristics of stable release force, low quick release force, antistatic property, high light transmittance, high residual adhesion rate and the like, is mainly used for protecting and transporting pressure-sensitive adhesive layers of polaroid products, does not generate static electricity to adsorb dust in polaroid transportation and downstream production, does not generate bad bubbles in use, and the release film cannot be quickly stripped in the downstream manufacturing process to cause poor stripping and influence the yield.

The invention discloses a matte release agent used for mold release material. The matte release agent is arranged between a release film and a mold release agent layer and comprises the following components in percentage by weight: 2%-6% of silica particles, 20%-30% acrylic polyol with average molecular weight of 500-2000, 35%-45% of polyoxyalkylene series polyol resin with molecular weight of 200-2500, 15%-20% of polyethyleneglycol, and 5%-10% of 1-hydroxy cyclohexyl phenyl ketone-photoinitiator 184; wherein the particle diameters of the silica particles have peak values in ranges of 0.1-0.2 um and 1.5-5 um respectively and the average particle diameter is 4 um or less, according to the particles distribution of the silica particles measured by a laser diffraction scattering method. According to the matte release agent provided by the invention, the binding force between a lamination layer of a release paper and the mold release agent is improved, the release force is stable, the anti-static performance of the film surface is improved, and the scratch resistance is simultaneously improved.

The invention relates to a thermochromic polyester release film. The thermochromic polyester release film comprises a polyester base film and a release coating which coats the surface of one side of the polyester base film; the polyester base film is composed of anti-aging polyester resin, antistatic polyester resin and thermochromic polyester resin, the weight percentage of each component is as follows: 80-90% of anti-aging polyester resin, 5-10% of antistatic polyester resin and 5-10% of thermochromic polyester resin; the polyester base film is of a single-layer structure and is prepared through melt extrusion and two-way stretching, and the thickness of the polyester base film is 50-200 microns; and the release coating is formed by coating release coating liquid and carrying out baking and curing treatment, and the thickness of the release coating is 2-8 microns. The thermochromic polyester release film provided by the invention is prepared by the processes of preparation of the release coating liquid and the base film, single-layer extrusion, coating curing and the like, not only has better heat resistance, antistatic property, aging resistance and migration resistance, but also can develop and change color at normal temperature and high temperature.

The invention discloses a primer. The primer comprises reactive silane and a solvent. The invention further discloses a thin film containing a primer layer. The thin film comprises a base film and the primer layer formed by curing the primer on the surface of the base film. A primer layer formed by the primer can improve the binding force between a film coating material and a film, so that the requirement of adhesiveness can be met without adding an anchoring agent in a silica gel and silicon release film formula, and the primer is simple in formula, suitable for various film coating materials such as a pressure-sensitive adhesive, silica gel and a silicon release agent and high in universality.