After more than 30 years of efforts,
especially the rapid development of nearly 20 years, many products have emerged
from scratch, from singleness to diversity, from low to high quality, and have
formed relatively complete industries with expanded perlite, rock wool, glass
wool, foam plastics, refractory fibers, calcium silicate insulation products
and other major products, as well as relatively complete technology and
production equipment level. Some products have reached the international
advanced level in the 1990s. However, due to the low overall technology and
equipment level of the insulation material industry in China, the application
technology in the construction field needs to be improved, which has greatly
affected the promotion and application of insulation materials. In recent
years, the phenomenon of repeated construction of thermal insulation materials
industry has been serious. Hundreds of production lines have been put into
operation in various parts of the country in recent years, but little
investment has been made in the development of application fields, resulting in
low investment efficiency and oversupply of demand.
Rock wool sandwich board has the most
superior fireproof performance. It has the characteristics of load-bearing,
heat preservation, heat insulation, fireproof, no need for secondary
decoration, quick and convenient installation, short construction period and
good comprehensive benefit. The products have passed the national quality test
and the fire proof test of the national fire-proof decorative materials.
Material application:
1. Upper/lower steel plate: thickness is
0.4-0.8 mm. There are color steel plate, galvanized steel plate and stainless
steel plate.
2. Core material: (ore) rock wool volume
weight is 120-150 kg/m3.
3. Compound PVC protective film in the form
of plate surface protection
Thermal insulation material is a new type
of building material widely used in modern industry and civil industry. In
thermal insulation material industry, rock wool board is widely used, and the
new polystyrene panel is also a very good thermal insulation material. What is
the difference between the traditional rock wool insulation sandwich panel and
the new polystyrene sandwich panel ?
1. Flame Retardant Effect
EPS boards are made of organic plastics, so
they are relatively flammable. There are many fire hazards in the construction,
and they are more prone to fire. B1 grade polystyrene sandwich panel can
effectively solve the flammable shortcomings, but can not achieve complete
non-flammability. Rock wool board is made of inorganic natural basalt, which
belongs to completely non-flammable thermal insulation material. There are no
fire hazards in construction, and the combustion index reaches A1 level.
2. Water Absorption Rate of Insulation
Layer
Polyphenyl board and rock wool board
construction technology is basically the same, can also be applied to thin
plastering system, in the construction of both can use point-frame bonding
method, polyphenyl board belongs to foaming plastic material, so it has a
certain hydrophobic effect, water absorption rate is low, because rock wool is
inorganic fiber material, so water absorption rate is higher, hydrophobic rock
wool board must be used in external wall insulation application. Or use bonded
mortar and plastering mortar with hydrophobic effect to form a protective layer
on the surface of rock wool board, which can greatly reduce the water
absorption of rock wool sandwich panel.
3. Sticking and anchoring
The foam sandwich panels and the rock wool sandwich panels can all adopt the point frame bonding method, but the rock wool
board belongs to the fibrous plate, so it is not easy to be thicker when the
bonding mortar is applied, but the area of the rock wool board bonding mortar
is more than the area of the polystyrene board bonding mortar, and when
necessary, the full bonding method is adopted. It is necessary to ensure that
the bonding area is more than 40%. As the rock wool board belongs to
fiberboard, anchorage nails under seven layers should be no less than 7 per
square and anchorage nails above seven layers should be no less than 9 per
square.
After the above difference analysis,
although the new polystyrene sandwich board is a good organic thermal
insulation material, but from the comprehensive performance analysis, it is
known that the traditional rock wool thermal insulation material is relatively
safe, but on the basis of the traditional material is the inevitable
development of society, I believe that the performance of polystyrene board
thermal insulation material will be improved greatly in the future.