Preparation method of rock wool/corn straw fiber composite heat insulation material

• Main Authors: MO HONG, ZHANG JUN, WANG YUTONG, LI ZHENSHUAI, CHENG CHUHAN
• Format: Patent
• Language: English
• Published: 27.01.2016
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

A preparation method of a rock wool/corn straw fiber composite heat insulation material comprises the following steps: respectively compacting rock wool and corn straw fibers to prepare tablets, arranging the obtained rock wool and corn straw fiber sheets on a pendulum machine in an interval lamination manner to form superposed cotton layers, adding the superposed cotton layers into a pleating machine, carrying out extrusion pleating, impregnating, and curing to prepare the rock wool/corn straw fiber composite heat insulation material. A mass ratio of the rock wool to the corn straw fibers in the material is 70%:30%-85%:15%. The above product prepared through the method can substitute traditional rock wool heat insulation materials widely used at present, the resin infiltration speed and the interface compatibility of the product are effectively improved without influencing the heat insulation performance of the product, the mechanical performances of the product are improved, the specific gravity and the production cost of the product are reduced, and a new approach is provided for comprehensive utilization of corn straws.