METHOD OF PRODUCING MATERIAL FOR MANUFACTURING PANELS OF SOUND SHIELDS BY EXTRUSION METHOD

FIELD: technological processes.SUBSTANCE: extrusion of a mixture of isotactic polypropylene with a m-phenylene-bis-maleimide based modifier is performed. The extrusion product is cooled, cut into pellets and dried. The granulate is mixed with isotactic polypropylene and fibrous filler. The mixture i...

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Hauptverfasser:	Mironov Nikolaj Aleksandrovich, Kozlov Evgenij Sergeevich, Marin Vladimir Vasilevich, Sharonov Andrej Vladimirovich
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	FIELD: technological processes.SUBSTANCE: extrusion of a mixture of isotactic polypropylene with a m-phenylene-bis-maleimide based modifier is performed. The extrusion product is cooled, cut into pellets and dried. The granulate is mixed with isotactic polypropylene and fibrous filler. The mixture is extruded. The extrusion product is cooled, cut into pellets and dried. Fibrous filler is a basalt fiber treated with a water-compatible silane-containing lubricant.EFFECT: improvement of physical and mechanical properties of panels of sound shields.1 tbl, 4 ex Изобретение относится к технологии изготовления шумозащитных ограждений. Проводят экструзию смеси изотактического полипропилена с модификатором на основе м-фенилен-бис-малеинимида. Продукт экструзии охлаждают, режут на гранулы и сушат. Гранулят смешивают с изотактическим полипропиленом и волокнистым наполнителем. Смесь экструдируют. Полученный продукт экструзии охлаждают, режут на гранулы и сушат. Волокнистый наполнитель - обработанное водонесовместимым силансодержащим замасливателем базальтовое волокно. Технический результат - улучшение физико-механических свойств панелей звукопоглощающих экранов. 1 табл., 4 пр.