News Details
Coating of siloxane crosslinking agent
2017-3-27 10:50:36
Coating of siloxane crosslinking agent,Siloxane, molecular formula: (R2SiO) x, nature: containing Si - O - Si key constitute main chain structure of the polymer. Traditionally called organic silicon or silicon ether, may be linear, circular or crosslinked polymer.
According to the product application classified as three types of silicone oil, silicone rubber and silicone resin.
Synthesis of siloxane raw material is the derivatives of silane SinH2n + 2. From R2SiCl2 organochlorine silane hydrolysis available linear siloxane and cyclic siloxane. Type with R2SiCl2 RSiCl3 organochlorine silane crosslinking siloxane hydrolysis and polycondensation.
Siloxane to heat and chemical stability, not wet by water, outstanding resistance to aging performance, excellent hydrophobic and electrical insulation. Used as a fire retardant agent, lubricant, moistureproof agent. Silicone resin used in the manufacture of fiber reinforced materials. Silicone rubber and the sealing material is also used in adhesives.
Coating in the process of storage, the phenomenon of sinking to the bottom of the container, the solid component is called precipitation, also known as the sink or settlement. In precipitation phenomenon is serious, the coating of paint particles precipitate into with mixing methods, such as not easily dispersed dense clumps, referred to as the lump.
The phenomenon of
When the paint bucket, stir with a stick into the bucket, filed, if the adhesive coating color consistency is consistent, no precipitation phenomenon. If the rare under thick, feel difficult to stir up, at the bottom of the the precipitation. When the stir bar cannot be inserted to the bottom, the bottom sediment scleroma, unable to stir, agglomerate.
Coating deposition the causes of caking phenomenon
(1) the pigment grinding is not fine, bad, in the formula, YanJi ratio is too large, fillers density factors, such as easy to cause precipitation;
(2) because if you add too much thinner the coatings with low viscosity, coating surface state of suspension, normally fillers precipitation;
(3) between the pigment and the resin to produce a chemical polymerization or mutual adsorption, gel, precipitation;
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
(4) powder pigment particles is in a state of instability;
(5) the storage time is too long, more than the retention period of the coating, especially the long time rest place. Paint storage time is too long, fillers for density is big, in the bottom to form the precipitation, eventually forming scleroma. Metamorphic occur some resin.
Polyurethane waterproof coating film is mainly used in the bathroom, roof or the basement waterproof engineering, the basic requirements are as follows.
With waterproof base with 1:3 cement mortar into 1/50 of the water slope, surface smooth, light, there is no uneven defects such as dusting off, loose, or ash. Drain or leakage must be lower than the entire waterproof layer, so as to discharge water. With casing pipe should be more than 20 mm above the surface, Yin and Yang Angle parts should make small fillet radius of about 10 mm, easy to coating construction.
All pipe fittings, sanitary equipment, floor drain or drain must be installed and firm, seams, head round, can not have any loose phenomenon.
Use tools such as shovel and broom would first at the grass-roots level surface uneven, mortar, such as little a knot in one's will dust thoroughly clean of debris. Roots, floor drain, and drain Angle of Yin and Yang, the pipe should be more serious in areas such as clean up. If discover oil, rust, etc with a wire brush clean, sand paper and organic solvents.
At the grass-roots level moisture content is less than 9%, PH < 10.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
According to the product application classified as three types of silicone oil, silicone rubber and silicone resin.
Synthesis of siloxane raw material is the derivatives of silane SinH2n + 2. From R2SiCl2 organochlorine silane hydrolysis available linear siloxane and cyclic siloxane. Type with R2SiCl2 RSiCl3 organochlorine silane crosslinking siloxane hydrolysis and polycondensation.
Siloxane to heat and chemical stability, not wet by water, outstanding resistance to aging performance, excellent hydrophobic and electrical insulation. Used as a fire retardant agent, lubricant, moistureproof agent. Silicone resin used in the manufacture of fiber reinforced materials. Silicone rubber and the sealing material is also used in adhesives.
Coating in the process of storage, the phenomenon of sinking to the bottom of the container, the solid component is called precipitation, also known as the sink or settlement. In precipitation phenomenon is serious, the coating of paint particles precipitate into with mixing methods, such as not easily dispersed dense clumps, referred to as the lump.
The phenomenon of
When the paint bucket, stir with a stick into the bucket, filed, if the adhesive coating color consistency is consistent, no precipitation phenomenon. If the rare under thick, feel difficult to stir up, at the bottom of the the precipitation. When the stir bar cannot be inserted to the bottom, the bottom sediment scleroma, unable to stir, agglomerate.
Coating deposition the causes of caking phenomenon
(1) the pigment grinding is not fine, bad, in the formula, YanJi ratio is too large, fillers density factors, such as easy to cause precipitation;
(2) because if you add too much thinner the coatings with low viscosity, coating surface state of suspension, normally fillers precipitation;
(3) between the pigment and the resin to produce a chemical polymerization or mutual adsorption, gel, precipitation;
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
(4) powder pigment particles is in a state of instability;
(5) the storage time is too long, more than the retention period of the coating, especially the long time rest place. Paint storage time is too long, fillers for density is big, in the bottom to form the precipitation, eventually forming scleroma. Metamorphic occur some resin.
Polyurethane waterproof coating film is mainly used in the bathroom, roof or the basement waterproof engineering, the basic requirements are as follows.
With waterproof base with 1:3 cement mortar into 1/50 of the water slope, surface smooth, light, there is no uneven defects such as dusting off, loose, or ash. Drain or leakage must be lower than the entire waterproof layer, so as to discharge water. With casing pipe should be more than 20 mm above the surface, Yin and Yang Angle parts should make small fillet radius of about 10 mm, easy to coating construction.
All pipe fittings, sanitary equipment, floor drain or drain must be installed and firm, seams, head round, can not have any loose phenomenon.
Use tools such as shovel and broom would first at the grass-roots level surface uneven, mortar, such as little a knot in one's will dust thoroughly clean of debris. Roots, floor drain, and drain Angle of Yin and Yang, the pipe should be more serious in areas such as clean up. If discover oil, rust, etc with a wire brush clean, sand paper and organic solvents.
At the grass-roots level moisture content is less than 9%, PH < 10.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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