FIELD: chemistry.
SUBSTANCE: invention relates to heat-curable powdered compositions based on an epoxide oligomer and can be used to make coatings with improved barrier properties. The powdered composition contains the following (pts.wt): epoxy resin - 96.7-90.3, dicyandiamide curing agent - 1.3-2.5, flow agent - 0.6-0.9, aluminosilicate nanoparticles - 0.5-5, anti-crater additive - 0.4-0.6 degassing agent - 0.5-0.7. The aluminosilicate nanoparticles used are: natural montmorillonite, a quaternary ammonium salt modified salt of the following structure [(HT)2N(CH3)2]+Cl-, where HT is dehydrogenated tall oil, or halloysite.
EFFECT: invention enables to prepare a heat-curable powdered composition for making coatings with improved barrier properties, having a high level of physical and mechanical properties.
3 cl, 2 tbl, 9 ex
Title | Year | Author | Number |
---|---|---|---|
BIOCIDAL POWDER COMPOSITION | 2017 |
|
RU2700876C2 |
POWDER-LIKE EPOXY COMPOSITION FOR COATINGS | 1994 |
|
RU2129137C1 |
PROCESS FOR PREPARING POWDERY COMPOSITION FOR TEXTURED COATING | 1991 |
|
RU2045559C1 |
POWDERED COMPOSITION FOR COATINGS | 0 |
|
SU825567A1 |
MULTIFUNCTIONAL ADDITIVE TO COATINGS | 2019 |
|
RU2733526C1 |
COMPOSITION FOR PRODUCING FIRE- AND HEAT-PROTECTIVE COATINGS | 2024 |
|
RU2826372C1 |
STABLE AT HIGH TEMPERATURE ONE-COMPONENT THERMALLY TURNABLE COMPOSITIONS | 2016 |
|
RU2679798C1 |
INTUMESCENT COATING COMPOSITION | 2014 |
|
RU2654760C2 |
EPOXY ADHESIVE BINDING AND FILMING ADHESIVE BASED THEREON | 2018 |
|
RU2686917C1 |
POWDER COMPOSITION | 0 |
|
SU1447828A1 |
Authors
Dates
2013-04-10—Published
2011-10-18—Filed