In the present paper, we study the effect of both morphology and
compatibilization on the reaction to fire of blends of recycled
poly(ethylene terephthalate) (PET) with recycled polycarbonate (PC).
This invention relates to process for preventing both corrosion and the formation of scale in water- conducting systems which
comprises adding a zinc carbonate and hydroxyl ethylene diphosphoric acid (HEDA) to water.
The main problems arising in hy
draulic engineering, e.g. when
untreated water for cooling purposes are the occurrence of corrosion and the formation of scale.
The corrosion of metals such as steel, copper and alloys of these
metals which commonly used for water circulation tanks is mainly
due to the action of oxygen, carbon dioxide ,chloride gas , chloride ions and many others ions dissolved in the water.
The prevention of corrosion by forming thin film of complex HEDA
and zinc ions which actions with corrosion ions while the
prevention of scale by forming heat stable soluble complexes with
calcium and magnesium.
The effect of 1-MCP, CaCl2 and CaCl2 + 1-MCP treatments on the
respiration and ethylene production of ‘Cox’s Orange Pippin’ apples was
investigated. Treatments were applied at harvest and apples stored under air
storage (3°C or 10°C) for 0, 2, 4,
6, 8 and 10 weeks. At storage removal apples
were held at 20°C for 7 days shelf-life and respiration and ethylene production
measured. The CO2 rate in the CaCl2 and CaCl2 + 1-MCP treatments was
significantly lower than either the CaCl2 treatment or untreated control. The
CO2 rate reduced steadily during shelf-life especially for the 3°C stored fruit. A
significant effect of storage temperature on the CO2 rate during shelf-life could
not be determined. Application of 1-MCP or CaCl2+1-MCP decreased
significantly ethylene production during shelf-life at all storage periods.
The Syrian detergent companies used to add high percentage of perborate
salt in laundry detergents formulation to achieve best bleaching and cleaning
results. And usually the bleach activator which transforms the peroxides into
more effective mate
rials, was added to the formulation in non specified doses.
The studies have been made of the effect of the bleach activator -TAED on
the perborates salt show the possibility to reduce the amount of the used
perborates by controlling the - Perborates / TAED percentage in the detergent
formulation .
The released active oxygen depends on the ambiant temperature where
weak activity where detected when temperature exceeds ٦٠ celsius. This study
shows the role of the detergent formulation on the bleach activator where it
releases the active oxygen in a higher percentage when monohydrate sodium
perborate is used, and no effects were detected on the tensile strength of the
used fabric.
