What are the characteristics of landscape fabric？

Landscape fabric features: 

1 The landscape fabric materials placed outside the natural decomposition, the longest life span of only 90 days, placed indoors in eight years decomposition, combustion of non-toxic, tasteless, and without any remaining material, so as not to pollute the environment, so the environment resulting. . 

2 is a new generation of environmentally friendly non-woven material, has good strength, breathable waterproof, environmentally friendly, flexible, non-toxic and tasteless, and the advantages of cheap. 

    It is a new generation of environmentally friendly materials, with water repellent, breathable, flexible, non-combustion, non-toxic and non-irritating, rich colors and other characteristics. 

3. Landscape non-woven products, rich colors, bright and crisp, stylish green, versatile, elegant, patterns and styles are diverse, and the lightweight, environmentally friendly, recyclable, is internationally recognized as the Earth's ecological environmental protection products. 

4 windproof insulation moisture, permeable vapor permeability, ease of construction maintenance, beautiful and practical, can be reused.

Ceiling Honeycomb Panels Installation

1, Honeycomb Panels Material Requirements

Materials used must meet the design requirements, and have the corresponding certificate and inspection reports, materials must be accepted by the supervising engineer into the plant before use.

2, Process

 Measuring cable → Install boom → Install L30 * 2 boom galvanized base angle keel → Install honeycomb panels dedicated accessaries → Install honeycomb panels→ Finishes cleaning → inspection and acceptance.

3, Construction Points

(1) Measurement Pull: According to drawings, use measuring instruments measure finecorrect data in the steel roof of the main keel cable construction. First, pull to find out the center of the construction segment (measuring instruments retest), in order to determine the center point construction section keel sub-file line of position, according to the sub-file line of position determining boom installation location.
(2) Fixed boom: according to the marked position by boom, install pre-processed all wire boom on the keel screw of the steel roof, boom pitch control ≤ 1200mm, if fixed by welding, it should be brushed antirust paint.
(3) Installation L30 * 2 galvanized base angle keel: According to the design of professional decoration construction plans, honeycomb panel size is 1200 * 2500mm, in order to ensure the installation of honeycomb panels, galvanized angle steel keel shall cellular base plate board surface by vertical mounting in length direction, fit the width direction of the plate surface, the keel spacing is not more than 1200; from the end plate is not more than 300.
(4) Installation honeycomb panels’ dedicated connection accessories and honeycomb panels  : L-type keel is installed firstly, then install honeycomb panels. L-shaped galvanized base connected with honeycomb panels using special Z-shaped keel aluminum hooks yards, then fixed with M5 bolts. Between honeycomb panels plate using a dedicated connector connection plate to prevent from the profiles along the slide plate, left and right mounting nonslipping connector block fixed firmly, the connecting member of the number and location of the corresponding hook in the longitudinal direction. Between honeycomb panels and aluminum tabs use the 25 * 25 * 100 special aluminum alloy to shut.

what is Sodium bromide?

Sodium bromide is a white crystalline or powder. Salty or bitter microstrip. Absorb moisture from the air, but not agglomerated deliquescence. Soluble in water. Low toxicity, irritation. For the determination of trace cadmium in analytical chemistry, photogravure, pharmaceuticals. Physical and chemical properties of colorless cubic crystals or white granular powder. Odorless, alkali and bitter. The relative density of 3.203 (25 ℃). Melting point 747 ℃. Hygroscopic in the air. Soluble in water (solubility 100 ℃ when 121g/100ml water) solution was neutral. Slightly soluble in alcohol. 51 ℃ when anhydrous sodium bromide solution precipitated crystals below 51 ℃ generated dihydrate. The bromide ion can be replaced by chlorine.

For photographic film, medical (sedatives), pesticides, perfumes, dyes and other industrial.

This product is mainly preparation method: 

① direct role in the generation of iron and bromine bromide and sodium carbonate, ferrous and then get azeotropic. Byproducts are basic ferrous carbonate, ferrous and after boiling becomes high colloidal iron compounds, filtering slow. To avoid this drawback, preferably two bromine was added, the resulting primarily iron oxides, and thus the filter is very easy to wash, and the reaction is as follows: 

Fe + Br2 → FeBr2 

FeBr2 + Br2 → FeBr2 · FeBr3 

FeBr2 · FeBr3 + Na2CO3 → NaBr + FeO · Fe2O3 + CO2 

② a slight excess of bromine to direct the hot solution was added saturated sodium bicarbonate, to form a mixture of bromide and bromate: 

3Br2 +6 NaOH = 5NaBr + NaBrO3 +3 H2O 

At this time the mixture was evaporated to dryness, the solid residue obtained mixture was heated with carbon, the reduction of bromate bromide: 

NaBrO3 +3 C = NaBr +3 CO ↑ 

Finally, dissolved in water, then filtered crystallization, drying at 110-130 ° C to obtain. 

This method is a general method for preparing bromide bromine, general industrial use.