摘要:
A two-part adhesive includes an A side, a B side, at least one of a polyurethane prepolymer and a diisocyanate, a polyol, a catalyst, and an adhesion promoter. The polyurethane prepolymer or diisocyanate is present in the A side from about 50% to 100% by weight of the A side composition. The polyol is present in the B side from about 52% to about 98% by weight of the B side composition. The catalyst is present in the B side from about 0.5% to about 5% by weight of the B side composition. The adhesion promoter is present in at least one of the A side composition and the B side composition from about 10% to about 50% by weight of the two-part adhesive. A ratio of isocyanate groups in the A side to hydroxyl groups in the B side is greater than 1.5:1.
摘要:
A system for applying a two-part adhesive to a substrate includes a prime mover for providing an output torque, a first pump connected to the prime mover for receiving the output torque, the first pump having an inlet and an outlet, a second pump connected to the prime mover for receiving the output torque, the second pump having an inlet and an outlet, a first compound in communication with the inlet of the first pump, a second compound in communication with the inlet of the second pump, a first accumulator in communication with the outlet of the first pump, a second accumulator in communication with the outlet of the second pump, a first manifold in communication with the outlet of the first pump, and a second manifold in communication with the outlet of the second pump. A plurality of applicators is included.
摘要:
A method of attaching a solar module to a substrate includes first applying an adhesive to the substrate. The adhesive is preferably a liquid or hot melt adhesive or a pressure sensitive adhesive tape. Once the adhesive has been applied to the substrate, the solar module is placed in contact with the adhesive. Where the solar module is a flexible solar module, the solar module is preferably rolled onto the adhesive. Where the solar module is a rigid unit, the solar module is preferably first positioned above the adhesive and then pressed down into contact with the adhesive. The solar module is securely attached to the substrate upon curing of the adhesive.
摘要:
A composition adapted to seal to a substrate is provided. The composition includes a radiation curable rubber, a photoinitiator, a blowing agent, a styrene-isoprene-styrene block copolymer, a plasticizer, and at least one of a radiation curable monomer and radiation curable oligomer.
摘要:
A distribution apparatus for applying a one or two-part adhesive to a substrate includes a wand with a plurality of openings through which the adhesive is dispensed. An extension is connected in fluid communication to the wand. The extension directs a flow of adhesive to the wand.
摘要:
A solar module includes an edge sealant. The sealant composition includes an unsaturated reactive polyolefin, an olefinic polymer, a silane modified polyolefin, inert fillers, calcium oxide, and aging resistors. These components are balanced to produce a sealant having desirable sealing characteristics, high weatherability, desired rheology, low conductivity, and good water absorption.
摘要:
An edge seal for manufacturing two-pane or multi-pane insulating glass or solar modules includes a sealant and a bonding agent. The sealant contains a polymer modified with special reactive groups and has the following overall composition: olefinic polymers included in an amount from about 10 % to about 90 % by weight of the total composition; at least one filler included in an amount from about 10 % to about 65 % by weight of the total composition; at least one inorganic filler that is a thermal and oxidative stabilizer in an amount from about 2 % to about 30 %; at least one of a desiccant and a water scavenger included in an amount from about 2.5 % to about 25 % by weight of the total composition; and at least one aging resistor including an anti-oxidant or UV stabilizer included in an amount from about 0 % to about 3 % by weight of the total composition.
摘要:
A sealant composition which may be applied between two substrates in a solar panel provides consistent rheology, high weatherability resistance, acts as a moisture barrier, and has low conductivity. The sealant composition preferably includes a rubber component, at least one rheology modifier, an adhesion promoter, a flow modifier, and a stabilizer.
摘要:
A composition and article adapted to seal to a substrate is provided. The composition includes a radiation curable rubber, a blend comprising at least one of a vinyl acetate and a polyvinyl alcohol, a rosin, and a photoinitiator.
摘要:
A heat-activated sound and vibration damping sealant composition is provided. The composition includes dried automotive paint powder and an unsaturated polymer, where the paint powder reacts with the unsaturated polymer when the composition is heated to greater than 200° F (80° C). Upon heating, composition expands and increases in tensile strength. The composition may be provided in the form of a tape which is adhered to a substrate such as an automotive or appliance part and then exposed to elevated temperatures such as those encountered in automotive, appliance, or other commercial paint bake processes. Thereafter, the composition provides sound and vibration damping properties.