1. A water-based polyurethane adhesive for disassembly at low activation temperature and a preparation method thereof
Applicant: Nantong Gaomeng New Material Co., LTD
Public number: CN116925688A
Open Day: 2023-10-24
Abstract: The invention discloses a water-based polyurethane adhesive for disassembly at low activation temperature and a preparation method thereof, belonging to the field of water-based polyurethane adhesive. The adhesive is made of raw materials consisting of the following weights: Polyester polyols 140 ~ 180 parts, carboxylic acid hydrophilic compounds 1 ~ 6 parts, sulfonate hydrophilic compounds 1 ~ 6 parts, isocyanate 16 ~ 38 parts, alcohol chain extender 0.3 ~ 2 parts, amine chain extender 0.5 ~ 1.5 parts, catalyst 0.02 ~ 0.06 parts, neutralizer 1 ~ 6 parts, acetone 155 ~ 260 parts, deionized water 160 ~ 26 parts 0 parts, thermal expansion plastic microspheres 18 ~ 46 parts, chemical foaming agent 18 ~ 46 parts, water thixotropic thickener 0.3 ~ 1 part, wetting agent 0.3 ~ 1 part and defoamer 0.3 ~ 1 part. The adhesive of the invention has both high initial bonding strength and disassembly performance after heating. At the same time, it also has the advantages of flame retardant, environmental protection, non-toxic safety, low VOC, low odor and so on.
2. An adhesive composition, an applied protective film and a preparation method thereof
Applicant: Suzhou Shihua New Material Technology Co., LTD.; Suzhou Shinuo New Material Technology Co., LTD
Public number: CN116948568A
Open Day: 2023-10-27
Abstract: The invention relates to the technical field of adhesives, in particular to an adhesive composition and an applied protective film and a preparation method. The adhesive composition comprises a (methyl) acrylic acid series polymer, an isocyanate series crosslinking agent, a metal chelate, an antistatic agent and an organosiloxane compound. The protective film is prepared by coating the adhesive composition on the polyethylene terephthalate film, drying treatment to obtain dry glue, and then bonding the release film, after curing treatment, to obtain the protective film. When the adhesive composition is applied to the antistatic protective film with low stripping voltage, the viscosity balance can be maintained at low stripping speed and high stripping speed. It has excellent antistatic properties, low precipitation, excellent aging resistance and excellent time performance.
3. High shear glue, tape for the envelope of square shell cell and preparation method thereof
Applicant: Jiang Susdik New Material Technology Co., LTD
Public number: CN116948569A
Open Day: 2023-10-27
Abstract: The present invention discloses a high shear glue, tape and a preparation method for a square shell cell envelope. The high shear glue comprises the following raw material components by weight: Acrylic glue 90 ~ 110 parts, epoxy resin 10 ~ 20 parts, polyacrylate 2 ~ 8 parts, polypolyol 1 ~ 10 parts, photoinitiator 1 ~ 5 parts, adhesion promoter 0.1 ~ 0.5 parts and solvent 30 ~ 40 parts. The high shear glue provided by the invention introduces epoxy resin, polyacrylic ester and UV phototriggering system into the acrylic glue, and the obtained high shear tape product can not only improve the shear strength to 7~9MPa, but also solve the problem of warping edge at the edge of the shell battery in practical application, so as to meet the market application demand and improve the application effect.
4. The invention discloses a short-wave pre-activated double curing cationic epoxy adhesive, a preparation method, application and application method thereof
Applicant: Wellton Technology Co., LTD
Public number: CN116948578A
Open Day: 2023-10-27
Abstract: The invention belongs to the field of cationic epoxy adhesive, and relates to a short-wave pre-activated double curing cationic epoxy adhesive, a preparation method and application method thereof. The short-wave pre-activated double-curable cationic epoxy adhesive comprises a cationic curable resin, a short-wave excited cationic initiation system and a long-wave excited cationic initiation system. The key of the invention is to introduce two cationic photoinitiators with specific excitation wavelength and absorbance into the cationic epoxy adhesive at the same time, and control the properties of the cationic epoxy adhesive after short-wave pre-curing, so that the cationic epoxy adhesive can still remain liquid for a certain period of time after pre-curing, thus achieving better fluidity and infiltration, and utilizing the continuous reactivity of cationic polymerization. After the pre-cured adhesive is filled to the shadow part, even if there is no secondary exposure, it can eventually change from liquid to gel or solid state to achieve effective curing and avoid corrosion to the microcircuit.
5. The invention relates to high strength duct tape, preparation method and preparation system
Applicant: Fujian Youyi Adhesive Tape Group Co., LTD
Public number: CN116948540A
Open Day: 2023-10-27
Abstract: The invention belongs to the technical field of tape manufacturing, and discloses a high-strength cloth tape comprising a base; A adhesive layer is arranged on one side of the base layer; The base layer comprises a nano-reinforced structure between a cloth base layer and a fiber evenly distributed in the cloth base layer; The nanoreinforced structure is carbon nanotubes or graphene; The adhesive of the adhesive layer adopts a pressure sensitive adhesive; The pressure sensitive adhesive is an acrylic ester pressure sensitive adhesive; The base layer of the duct tape comprises not only a cloth base layer, but also a nano-reinforced structure evenly distributed among the fibers of the cloth base layer. The combination of nano-reinforced structure and cloth base limit helps to improve the tensile strength and shear strength of the tape, making it more able to withstand mechanical stress and not easy to break.
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