7results about How to "Reduce phase separation" patented technology

This invention relates to the field of polymer material synthesis technology, specifically to a modified PVB resin and its preparation method. The invention introduces a fluorinated acetal monoaldehyde derivative containing fluorine into the PVB resin. This derivative is mixed with n-butyraldehyde and glyoxal, thereby undergoing an acetalization reaction with the 1,3-o-diol structure of the PVB molecular chain, incorporating the fluorinated side link into the PVB molecular chain. Utilizing the high electronegativity and high C-F bond energy of fluorine atoms, it shields against the intrusion of external corrosive media, inhibits oxidative yellowing, and improves weather resistance. Furthermore, the invention introduces glyoxal as a crosslinking agent, containing dialdehyde groups, which can react between adjacent polyvinyl alcohol segments, causing slight crosslinking between the originally linear PVB resin segments, improving the resin's shielding performance, further reducing the intrusion of external corrosive media, and enhancing the stability of the PVB resin.

The invention relates to transparent light-heat curing acrylate modified epoxy resin and a preparation method and application thereof, and the transparent light-heat curing acrylate modified epoxy resin comprises the following components: aliphatic polyurethane acrylate oligomer, acrylate monomer, styrene-maleic anhydride copolymer, adhesion promoter, amino resin, photoinitiator, hydrogenated epoxy resin A and hydrogenated epoxy resin B, the composition is prepared from a thixotropic agent, an anti-aging agent, a UV absorbent, a light stabilizer, a curing agent and an accelerant. The problems that the requirement for glass fibers is high, holes are prone to occurring inside and the like due to insufficient infiltration of pure acrylic ester are solved, and the light photovoltaic flexible assembly prepared from the epoxy resin is excellent in performance and has good market application prospects.

The present application relates to bituminous material preparation technical field, specifically disclose a kind of acrylic resin copolymer modified emulsified asphalt and preparation method thereof, the acrylic resin composite emulsion provided by the present application can form stable reinforcing network in asphalt matrix after blending with emulsified asphalt, wherein, rigid component helps to improve the high-temperature deformation resistance and mechanical strength of material, flexible segment is endowed with good low-temperature toughness, modified lignin as interface compatibilizer and reinforcing point, further optimize the interface combination and overall stability of polymer phase and asphalt phase, so as to improve the high and low temperature resistance and mechanical properties of emulsified asphalt.

The invention provides a light-heat dual response intelligent long afterglow coating which is prepared from the following components in parts by mass: 15 to 25 parts of coated strontium europium dysprosium aluminate, 10 to 20 parts of thermochromic microcapsules, 5 to 15 parts of tungsten-copper heterojunction filler, 30 to 40 parts of organic silicon modified acrylic resin, 3 to 8 parts of interface bridging agent and 2 to 5 parts of modified boron nitride. According to the invention, stable long afterglow performance is ensured, organic unification of photo-thermal response and long-acting luminescence is successfully realized, and the technical problems of mutual interference of components and poor environmental stability in a traditional multifunctional coating are effectively solved.

This application relates to the field of ABS material processing technology, and more specifically, to an ABS cold-resistant material and its preparation method, which is prepared from the following raw materials in parts by weight: 50-60 parts of ABS resin, 10-30 parts of SNA resin, 20-35 parts of high-rubber powder, 4-6 parts of trans-polyoctene rubber, 2.5-4 parts of hyperbranched polyesteramide, 2.5-5 parts of hydroxyl-terminated polybutadiene-acrylonitrile copolymer, 1.5-3 parts of reaction compatibilizer, 4-6 parts of poly(p-phenylene terephthalamide) short fiber, 3-5 parts of nanofiller, 1-2 parts of nucleating agent, and 0.1-2 parts of additives. The reaction compatibilizer is composed of maleic anhydride-grafted ABS and glycidyl methacrylate-grafted styrene-acrylonitrile copolymer. The ABS cold-resistant material prepared by this formula can maintain excellent impact toughness at -40℃, while having good tensile strength, flexural strength and surface hardness, and good wear resistance and scratch resistance, meeting the comprehensive performance requirements of harsh application scenarios such as automotive structural components and low-temperature logistics equipment.

The application provides a synergistic composite toughening PP-R pipe material and a preparation method and application thereof, and belongs to the technical field of PP pipes. The synergistic composite toughening modified PP-R pipe material provided by the application can improve the toughness of the material at room temperature and low temperature by adding an elastomer toughening agent. The addition of PP-B and PE can limit the excessive reduction of tensile strength and yield strength caused by the addition of the elastomer, so as to maintain the balance between toughness and rigidity. The addition of a compatibilizer can improve the interface bonding problem of the blend, especially the dispersion effect of the elastomer toughening agent and PE, and reduce the phase separation between PP and the elastomer and PE. The application forms a PP-R / elastomer / PE / PP-B multi-component synergistic composite toughening system through various components, realizes the complementation and synergistic improvement of the performance of the materials, and thus improves the performance of the PP-R pipe.

The application relates to the technical field of silicone rubber, and particularly discloses a wear-resistant and high-temperature-resistant silicone rubber composition and a preparation method. The silicone rubber composition comprises the following raw materials in parts by mass: 55-70 parts of methyl vinyl silicone rubber, 15-20 parts of methyl phenyl vinyl silicone rubber, 5-10 parts of polytetrafluoroethylene micro powder, 10-18 parts of modified POE, 4-8 parts of reinforcing filler, 2-4 parts of processing aid, 18-25 parts of fumed white carbon black, 1-3 parts of divinyl tetramethyl disilazane, 1.5-3 parts of vulcanizing agent and 0.5-2 parts of crosslinking aid. The raw materials are mixed in a banbury mixer, melt-blended in a torque rheometer and formed into a plate in a plate vulcanizing machine to obtain the wear-resistant and high-temperature-resistant silicone rubber composition. The silicone rubber composition prepared through the synergistic effect of the raw materials has excellent wear resistance, high-temperature resistance, excellent mechanical properties and good stability.