Merlot, wallpaper glue

Waste rubber powder is refers to the products after the crushing process of powdered rubber materials processing, plastic playground, amusement park, rubber floor tile is widely used in sports, waterproofing materials, waterproofing coating, modified asphalt, rubber products, modified starch, broadly higher fields.

This product USES the modified hydroxypropyl methyl cellulose (HPMC) as raw materials, biodegradable, no residue, environmental protection, non-toxic harmless; Good solubility and dispersion, stable performance, easy construction, daub area is large; Can mouldproof moistureproof, is a new generation of green health and professional wallpaper powder.

Ensure metope smooth, clean, dry, tools are also clean. When necessary the stains on the wall can use the decontamination treatment to remove, mildew areas must be treated with bleaching liquid before use detergent. Ensure metope is painted or at least the basement membrane.

Ratio of * note: this table is for reference only, if found in the construction process of abnormal, please immediately stop the construction, professional technical advice and counseling.

The basic classification

According to the different methods can be classified, according to the process can be divided into normal temperature powder, frozen powder, putty powder, instant powder, superfine powder and fine powder; According to the sources of raw materials can be divided into the truck tire rubber powder, passenger tire rubber powder and shoe rubber powder, etc., according to the activation or not can be divided into activated powder and not activation powder; According to the size of the particle size of ultrafine powder and general powder

The basic classification

After sorting and divide without a rubber composition of waste rubber, due to the different length, thickness, not directly to pieces, and have to be cut for waste rubber. Overseas for common use whole tire cutter cut into range 25 mmx25mm rubber pieces. Large plastic block is back to cutting machine to cut again.

Mainly using shear to cut waste rubber, crushing, generally divided into coarse crushing and finely two processes. At room temperature to room temperature in grinding roll method and continuous FenSuiFa is most commonly used tyres. Room temperature FenSuiFa jiaofen production in the world is the main method, has a good technical economy.

According to different can be divided into liquid nitrogen freezing medium adopted by the expansion refrigeration FenSuiFa FenSuiFa and air at low temperature. It is using the low temperature effect, make the rubber brittle glass transition temperature is reached, and then use mechanical force to crush it. Liquid nitrogen method of liquid nitrogen consumption big, high cost; The cooling medium for air expansion refrigeration FenSuiFa, air, a liquid nitrogen method of energy saving, water saving, high efficiency and low cost.

In the industrial developed countries, have subsidy to waste rubber processing, so can use liquid nitrogen and air expansion refrigeration FenSuiFa. Developing countries and subsidies, the country should be under normal temperature method is used to produce powder to adapt to the market and obtain better economic benefit.

Choose the appropriate liquid medium make rubber brittle, and then on the colloid mill for grinding. According to its using suspension liquid medium water expansion shattered two crushing and solvent. Water suspension pieces for the surface treatment of powder grinding after drying in the water; Solvent crushing using organic solvent make powder swelling after grinding, and then remove the solvent and dry powder. Wet method or solution method producing fine powder particle size, application performance is good, but its high production requirements, need to use a large amount of liquid medium.

The performance characteristics of

Powder engineering, powder is a kind of powder and granular materials, so for powder particle size, specific surface area, surface morphology and group and its components for the use of it will have important influence on performance.

The fine powder is, the performance is better. The fine powder of the vulcanizates of tensile strength, elongation and abrasion, and the closer in without powder. And fatigue resistance, resistance to crack growth performance are higher than without powder, the greater the increase of the thinner.

Current situation of the development of

In 1930, in the United States to declare the first patent on rubber powder. In 1956 the United States B.F.G oodrich company produce nitrile rubber powder for the first time. Since then, many scholars abroad for rubber powder has carried on the positive research, this new product develop powder styrene butadiene rubber. Dunlop company developed powder ethylene propylene rubber and silicone rubber powder; American esso company developed butyl rubber powder; Harrison British company established powder natural rubber factory in Malaysia. But later in the nearly 20 years, due to various reasons, the development of rubber powder stagnant

Until the 1980 s, production and application of rubber powder. The powdered rubber processing equipment has achieved rapid development.

In the late 1990 s,ue to the rapid development of the polymer modified industry and tire industry needs to expand, rubber powder production and processing technology, and the global environmental protection requirements, using waste rubber of rubber powder preparation technology has also got rapid development.

The study of powdered rubber in our country, from the 1970 s, lanzhou institute of chemical industry company synthetic rubber factory for the start of the study of powdered rubber products.