Micro-foaming stone plastic floor and preparation method thereof

• Main Authors: NI QINGLAN, YING TAO, HE KUN, WEI YAN, LI JIN
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BUILDING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS; FIXED CONSTRUCTIONS; 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; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention discloses a micro-foaming stone plastic floor and a preparation method thereof. The micro-foaming stone plastic floor sequentially comprises a surface layer, a micro-foaming stone plastic base material and a mute layer from top to bottom. The expanded microsphere foaming agent and the hollow glass bead foaming agent are added into the formula of the micro-foaming stone-plastic base material layer, the expanded microsphere foaming agent is of a core-shell structure, the shell can still keep a complete sealed sphere after high-temperature expansion, and the shell has good elasticity and can bear large pressure, so that it is guaranteed that the specific gravity is reduced, good residual depression performance can still be kept, and the foaming agent plays a role in assisting foaming and reinforcing so that the floor still has good residual depression, dimensional stability and lock catch tension; in addition, the PVC foaming layer is adopted as the mute layer, and the mute layer can be directly re