Method for preparing PMMA impact resistant material applied to laser marking

The invention provides a modified PMMA applied to laser marking. A preparation method for the PMMA comprises the following steps: using silane coupling agent vinyl tri-(beta-methoxyethoxy) silane to carry out surface alkylation modification for nano silicon dioxide particles to obtain alkylation nan...

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Bibliographic Details
Main Authors WEN DIJIANG, NI PEIHONG, ZHANG MINGZU, YU LINHUA
Format Patent
LanguageChinese
English
Published 11.11.2009
Subjects
ADHESIVES
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COLOUR PRINTING
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DYES
LINING MACHINES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PERFORMING OPERATIONS
POLISHES
PREPARATION OF CARBON BLACK
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
STAMPS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
TYPEWRITERS
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:The invention provides a modified PMMA applied to laser marking. A preparation method for the PMMA comprises the following steps: using silane coupling agent vinyl tri-(beta-methoxyethoxy) silane to carry out surface alkylation modification for nano silicon dioxide particles to obtain alkylation nano silicon dioxide particles; with benzoyl peroxide (BPO) evocating agent, grafting polyacrylic ester or polyvinyl acetate to the surface of the alkylation nano silicon dioxide particles as a toughening agent; blending the toughening agent, polymethyl methacrylate (PMMA) and laser functional pigment, putting the mixture into a double-screw extruder, and melting, blending and extruding the mixture to granulate; and after the mixture is dried, injection-molding the mixture through an injection molding machine. The preparation of the toughening agent is simple, and the preparation method for the modified PMMA is convenient for industrialization.
Bibliography:Application Number: CN2009127042