separation method to measure osmosis potential) and pressure balance method (pressure chamber method to measure water potential), there is a class of gas phase balance method, including thermocouple hygrometer, dew point method and so on. The
The freezing point drop method determines the permeability of plant juice
Time of Update: 2021-01-08
. Instrument debugging: >>
(1) adds about 40 ml of nonfreeze from the cooling notway to observe the liquid scale (red line) of the instrument until the scale. >>
(2) turns
Haze weather awakens the importance of environmental protection Water paint into a new growth point
Time of Update: 2021-01-04
environment over the next five years. We will continue to further promote the prevention and control of air, water and soil pollution, further reduce the total amount of pollutant emissions, and continuously improve environmental quality; comprehensively
From the point of view of humidity and air volume, how to choose spraying tools and equipment adapted to the characteristics of water paint
Time of Update: 2020-12-27
the surface of the water paint, is also a key factor affecting the quality of the water paint spray. Because there are strict requirements for temperature, water paint spraying work is carried out in the paint room, the temperature can be controlled, so
The preparation points of water-based thermal reflection coatings are discussed
Time of Update: 2020-12-13
or metal plates are developing towards water-based. 1.1 Main features of water-based coatings With the improvement of human awareness of environmental protection, it has become common to prepare polymer liquid coatings with water instead
This article takes you to know the technical points of graphene water-based anti-corrosion coatings
Time of Update: 2020-12-10
/> China. However, the simple use of graphene anti-corrosion coating has many limitations: high quality requirements for graphene, metal substrate restrictions, equipment requirements, difficult to large-scale, large-area preparation, difficult
Technical points of graphene water-based anti-corrosion coatings
Time of Update: 2020-12-08
/> China. However, the simple use of graphene anti-corrosion coating has many limitations: high quality requirements for graphene, metal substrate restrictions, equipment requirements, difficult to large-scale, large-area preparation, difficult
How to avoid those common water leakage points in waterproof construction
Time of Update: 2020-11-26
/> cement used in waterproof concrete must be tested to eliminate the use of stable non-conforming products, the matching ratio provided by the laboratory, and strictly control the amount of cement used. for the basement floor plate
Floor water paint Polyurethane paint winter construction which points to pay attention to
Time of Update: 2020-11-24
, non-stick, as well as good chemical resistance and water resistance, widely used in water conservancy engineering, crude oil storage tanks, general chemical corrosion, ships, steel structures, etc., sun-resistant concrete surface.
A common knowledge point of water-based industrial paint
Time of Update: 2020-11-22
Water-based industrial paint is mainly water to do diluents, do not need curing agents, dilute some solvents, is different from oil-based industrial paint a new type of environmental protection anti-rust anti-corrosion coating.
Water-like wood paint construction seven points
Time of Update: 2020-11-16
treatment: 240 to 320; primer polishing: 320; finish primer polishing: 600; finish polishing: 600 to 800; finish polishing: 1500 to 2000; precautions: transparent coating should be polished in the direction of wood grain