58results about How to "Stable peel force" patented technology

The invention relates to an antistatic membrane and articles containing the membrane. The membrane comprises: a basilar membrane; a conducting layer located on one surface of the basilar membrane; a protecting layer located on the surface of the conducting layer opposite to the basilar membrane to protect the conducting layer. The protecting layer contains particles restricting reduction of conductivity of the membrane surface and macromolecular film forming polymer. The grain diameter of at least part of particles is larger than the thickness of the protecting layer.

The invention discloses a hot-pressing carrier tape sealing mechanism, and aims at solving the shortages that noise and vibration are high, a phenomenon of deviation of a carrier tape from a guide rail is liable to cause, a heat isolation effect between a sealing cutter and other components is poor, a temperature fluctuation on the sealing cutter is high, and accurate control cannot be realized, in the existing carrier tape hot-sealing mechanism. The hot-pressing carrier tape sealing mechanism disclosed by the invention comprises a hot-sealing base, wherein a drive component installation seat and a floating guide rail component are connected to the hot-sealing base; a vertically-lifting moving component is connected to the drive component installation seat in a sliding way, and a servo motor for driving the moving component to carry out lifting motion is fixedly connected to the drive component installation seat; a cutter bit component is rotationally connected to the lower end of the moving component; a buffer is connected between each of the two sides of the upper end of the cutter bit component and the moving component; the cutter bit component comprises a heat isolation block and a heating block; a heating rod is arranged in the heating block; a sealing cutter is connected to the lower end surface of the heating block; a temperature detector is installed between the sealing cutter and the heating block; and the temperature detector, the heating rod and a temperature controller form a closed-loop control loop.

The invention discloses a quick-curing organosilicon pressure-sensitive adhesive, and belongs to the field of adhesives. The organosilicon pressure-sensitive adhesive is obtained by carrying out an addition reaction on a polysiloxane methyl vinyl MQ organosilicon tackifier containing vinyl under the action of a cross-linking agent, a reaction inhibitor and a platinum catalyst. According to the organosilicon pressure-sensitive adhesive provided by the invention, through selection of monomers, especially selection of functional groups and proportions of the functional monomers, optimization andimprovement of a process, and selection of a matching effect of the catalyst and the functional groups of the functional monomers, the adhesive can achieve the purpose of direct winding and quick curing after a base material is coated, and good viscous force and stripping force can be ensured.

A copolymer comprises the reaction product of (a) (meth)acrylate functionalized nanoparticles, (b) vinyl monomer, and (c) mercapto-functional silicone. The (meth)acrylate functionalize nanoparticles are selected from the group consisting of silica nanoparticles, zirconia nanoparticles, titania nanoparticles, and combinations thereof.

The invention discloses a low-climbing organic silicon pressure-sensitive adhesive and a preparation method and application thereof, and belongs to the technical field of pressure-sensitive adhesive silica gel protective films. The organic silicon pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 100 parts of vinyl polysiloxane, 20 to 100 parts of methyl MQ silicon resin, 0.5 to 1.5 parts of a cross-linking agent, 0.5 to 1 part of a catalyst, 0.05 to 1 part of an inhibitor and 100 to 200 parts of a diluting solvent. Vinyl polysiloxane with a special structure and vinyl content and cross-linking agent silicon-hydrogen group-containing silicone oil with a special structure and hydrogen content are adopted, the prepared organic silicon pressure-sensitive adhesive is low in stripping force and obvious in climbing effect under high-temperature and high-humidity conditions; the adhesive is simple in synthesis operation process, low in cost and convenient to produce and use.

The invention discloses a 3D curved surface AF coated screen mobile phone protective film and a preparation method thereof. A hardened layer, a PET layer with the polarization angle of 70-100 degrees, a modified photo-thermal dual-curing acrylic polyurethane layer, a non-optical-axis optical elastic layer and a special silica gel pressure-sensitive adhesive layer for an AF screen are adopted as main structures; thenon-optical-axis optical elastic layer has no polarization angle; an upper protection layer can realize a self-separation function, and the modified photo-thermal dual-curing acrylic polyurethane layer adopts specific material components, so that both thermal curing and photo-curing can be carried out. The protective film and the preparation method thereof have the advantages that bending forming molds of different specifications do not need to be customized according to the sizes of different 3D curved surface AF coated screen mobile phones during production, forming can be completed only through cutting and flaking, film pasting can be achieved at a client side in the follow-up process only through positioning film covering and ultraviolet lamp UV curing and attaching, hot-pressing high-temperature operation and demolding are not needed in the whole process, the overall production efficiency is remarkably improved, and the production cost is greatly reduced.

The invention relates to an antistatic polyurethane pressure-sensitive adhesive protective film and a preparation method thereof. The antistatic polyurethane pressure-sensitive adhesive protective film is prepared by uniformly coating a polyurethane pressure-sensitive adhesive on a plastic film substrate and baking at high temperature, wherein the polyurethane pressure-sensitive adhesive is prepared from the following components in parts by mass: 100 parts of polyurethane resin slurry, 50-300 parts of a dissolving agent, 3-15 parts of a curing agent, 0.02-1.2 parts of a delay catalyst and 0.1-1.5 parts of an antistatic agent; the delay catalyst is a thermal activation type amine delay catalyst; and the antistatic agent is an ionic liquid antistatic agent. According to the antistatic protective film, the silicon transfer phenomenon of an organic silicon pressure-sensitive adhesive is avoided, the antistatic protective film also has stripping force stability and aging resistance superior to those of an acrylate pressure-sensitive adhesive, meanwhile, the antistatic protective film has a stable and excellent antistatic effect, and the protective film has good self-exhaust performance, good adhesion performance, soft and residue-free torn film, stable stripping force and excellent aging performance. The preparation method disclosed by the invention is simple in process and easy for industrial production and control.

The invention relates to an on-line coating low-stripping-force polyester release film which comprises a polyester base film and a release coating coating surface of one side of the polyester base film. The polyester base film is composed of film-grade polyester resin, fluorine-containing polyester resin and antistatic polyester resin, the weight percentage of each component is as follows: 80-90% of film-grade polyester resin, 5-10% of fluorine-containing polyester resin and 5-10% of antistatic 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 20-60 micrometers. 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 1-5 microns. The on-line coating low-stripping-force polyester release film provided by the invention is prepared through the processes of release coating liquid and base film preparation, single-layer extrusion, coating curing and the like, has the characteristics of low stripping force, stable release force, heat resistance, antifouling property and the like, and can meet the use requirements of packaging labels such as adhesive labels, electronic labels, bar codes and the like in the industries of electronics, medicines, daily chemicals, foods and the like.

The invention relates to the technical field of film material preparation, in particular to an antistatic agent, an antistatic release film and a preparation method of the antistatic release film. Theantistatic release film comprises a base film layer and a functional layer, wherein the functional layer is prepared from the antistatic agent. The antistatic agent comprises the following componentsin parts by weight: 0.05-0.5 parts of a conductive monomer, 20-40 parts of light-cured organic siloxane resin, 60-80 parts of a light-cured organic silicon release agent and 0.05-0.5 parts of a photoinitiator. The antistatic release film disclosed by the invention is stable in characteristics, adopts a photocuring mode, is thorough in curing, forms a polymer film, and is stable in chemical and physical properties, stable in stripping force and antistatic capacity, good in adhesive force and less in silicon transfer. The process is simple and is completed at one time, the production efficiencyis high, the cost is low, and few waste materials are generated in production.

The invention discloses a surface mouth component carrier tape upper cover tape which comprises a PET thin film, wherein a hot melt adhesive layer formed by a hot melt adhesive is coated on the lower surface of the PET thin film, two parallel longitudinal die lines are formed on the hot melt adhesive layer, and die lines which are shaped like an inverted V are formed on the left side and the right side of the two longitudinal die lines. When the surface mouth component carrier tape upper cover tape is used, a client can obtain stable stripping force by only needing to tear apart in the direction of the inverted V along the positions of the die lines after joint, the strength of the stripping force can be determined by the size of a small-diameter cutting knife and different depths formed by cutting, and the upper cover tape of the left and the right die lines still leave on a lower tape, thereby avoiding the problem of leading the stripping strength of the cover tape to change; furthermore, the upper cover tape can save raw materials and save processing cost; and the processing method can be completed once and the processing method is simple.

The invention discloses a single-resisting one-side release film. A release agent layer is obtained by solidifying a release agent. The release agent comprises the following components: prepolymerizedresin, methylhydroquinone, 3-epoxypropane, dodecyl glycidyl ether, and 1-hydroxy cyclohexyl phenylketone. The prepolymerized resin is obtained by the following steps: mixing cyclohexyl methacrylate,beta-carboxyethyl acrylate, acrylic acid in a stirring barrel, and uniformly stirring the materials at a low speed to form a primary mixture; mixing primary mixture, xylene, and benzoyl peroxide, andadding a mixture in a reaction vessel to obtain a polymer solution; stirring the polymer solution and 2-hydroxyethyl vinyl ether at a high speed, and heating the materials and performing heating distillation to remove xylene to obtain the prepolymerized resin. The single-resisting one-side release film cannot generate unfavorable influence on electric property of a circuit board, increases the reliability of the circuit board, and realizes low-energy rapid light-curing under UV light irradiation.

The invention belongs to the technical field of films, and particularly relates to an easy-to-peel MLCC release film and a preparation method thereof. An online PET release agent coating technology is adopted, and plasma is adopted to treat the surface of the film in the production process, so that the binding force between silicone oil and the film is better, and the peeling property to ceramic is better; and the release film comprises at least two layers: the surface layer comprises siloxane modified molybdenum disulfide, montmorillonite or graphene sheet inorganic material and PET, and the base layer is 100% PET. The invention also provides a production process of the release film, wherein the production process comprises the following steps: (1) preparing a base film with at least two layers of structures; (2) heating and longitudinally stretching the base film; (3) treating the surface of the base film by plasmas; (4) coating the treated surface of the base film with silicone oil emulsion; and (5) heating and transversely stretching the thick film of the uncured emulsion coating layer to complete coating layer curing, heat setting and cooling. The siloxane-modified two-dimensional nano material can improve the smoothness of the surface layer, so that the surface roughness of the film is reduced.

The invention discloses an efficient antistatic process film for attachment of an OLED module and a production method of the efficient antistatic process film. The process film consists of an anti-adsorption conductive layer, a base material, an efficient conductive layer, a pressure-sensitive adhesive layer and a release film, one side of the base material is coated with the anti-adsorption conductive layer, the other side, which is a corona surface, is coated with the efficient conductive layer, and then the base material is attached to the release film through the pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer is a UV light viscosity-reduction adhesive layer and has antistatic performance. The back surface of the release film is coated with the anti-adsorption conductive layer. According to the process film of the invention, the anti-static requirements of a film surface and the back surface of the release film are increased on the basis of the anti-static property of the adhesive surface of the process film, so that electrostatic adsorption cannot be generated in the picking and using processes of the film, and the stability of the process is increased; meanwhile, the resistance of the adhesive surface is greatly reduced, the possibility of dust adsorption and electrostatic breakdown is low, the yield and the efficiency are improved, and the method is mainly applied to the attachment process of an OLED screen module at present.

The invention discloses an optical release film. The optical release film comprises a base film layer, a release agent layer coated at the surface of the base film layer, and the release agent layer is obtained by solidifying a release agent. The release agent comprises the following components: prepolymerized resin, methylhydroquinone, 3-epoxypropane, dodecyl glycidyl ether, and 1-hydroxy cyclohexyl phenylketone. The prepolymerized resin is obtained by the following steps: mixing cyclohexyl methacrylate, beta-carboxyethyl acrylate, and acrylic acid in a stirring barrel, and uniformly stirringthe materials at a low speed to form a primary mixture; mixing primary mixture, xylene, and benzoyl peroxide and adding a mixture in a reaction vessel to obtain a polymer solution; stirring the polymer solution and 2-hydroxyethyl vinyl ether at a high speed, and heating the materials and performing heating distillation to remove xylene to obtain the prepolymerized resin. The release film increases the product weatherability, cannot generate unfavorable influence on electric property of a circuit board, and increases the reliability of the circuit board.

The invention discloses a light peeling-type release agent and a preparation method thereof. The release agent layer is obtained by prepolymerized resin, methylhydroquinone, 2-hydroxymethyloxetane, dodecyl glycidyl ether, and 1-hydroxy cyclohexyl phenylketone. The prepolymerized resin is obtained by the following steps: placing 40-50 parts of cyclohexyl methacrylate, 15-30 parts of beta-carboxyethyl acrylate, and carbamate (methyl)acrylic ester in a stirring barrel, and uniformly stirring the materials at a low speed to form a primary mixture; mixing the primary mixture obtained in the step 1), xylene, and 0.2-0.4 parts of benzoyl peroxide, and adding a mixture in a reaction vessel to obtain a polymer solution; stirring the polymer solution and 5-12 parts of 2-hydroxyethyl vinyl ether at ahigh speed, and heating the materials and performing heating distillation to remove xylene to obtain the prepolymerized resin. The light peeling-type release agent keeps stable low peel strength under low temperature, and increases the product weatherability.