Fireproof cement foam insulation board dedicated calcium stearate successful development

Cement foam board dedicated calcium stearate , also known as the Plastic impact modifier  cement foam insulation board dedicated calcium stearate , fireproof cement foam insulation board dedicated calcium stearate , A grade cement foam insulation board dedicated calcium stearate ( hereinafter referred to as calcium stearate ) , the manufacturers of him not the same name , but the play was really a role in the fire cement foam insulation board production roughly
Calcium stearate is mainly used in cement foam insulation board made ​​fireproof foam stabilizer , curing agent, water repellent ( hydrophobic agent ) . Currently the manufacturers for the production of cement foam insulation board fire recipe varies. Useful sulfur aluminate cement , ordinary Portland cement are also useful for different cement per cubic meter  fluorescent brightener of production of fire insulation board quality and amount of calcium stearate is not like.
Foam stabilizer : calcium stearate effectively prevent fire insulation board was up too high and the lack of material and keep the aperture fine, uniform cell size did not make cement foam insulation board does not collapse in the foam, foam completed after the semi-finished table no holes or cracks.
Curing agent: calcium stearate itself there are a lot of calcium , which Azodicarbonamide  can effectively increase the intensity of fire insulation board firmly to prevent fire insulation panels fold out powder , produced by calcium stearate fire insulation board with calcium ions in the late the chemical reaction will be more firm , more rugged .

Nature of the food stabilizer

The stabilizer is a type of food can form and maintain a food dish shape , texture, stability of food additives. Including sugar derivatives gum , dextrin , sugar esters. Generalized stabilizers may include coagulants, chelating agents , and other multi- functional compound additive composition additives , Additives such as for ice cream is a composite emulsifier and stabilizer of the composition .
Substances can increase the physical state of physical or chemical stability . ( 1 ) due to the structure of polyvinyl chloride and potassium chloride , which when exposed to light and heat coloring occurs organic pigments  on dechlorination deterioration . Both the non- plasticized polyvinyl chloride plasticized , processing , need to be protected by antioxidants. The main role of the stabilizer with the decomposition reaction of hydrogen chloride , so that no further decomposition . Easy metal compound with hydrogen chloride , epoxy compounds can be used as stabilizers. Stabilizers generally should have thermal stability , light stability , weather resistance, and compatibility with PVC complexes , good dispersibility , low volatility , does not precipitate , no transfer is preferably colorless or light-colored , can be prepared transparent ; good processability , good mold release , lubricity, non-stick rollers , no inflection ; easily be water, oil , pharmaceutical leaching ; non-toxic, no odor ; electrical insulation ; sulfidation Plastic impact modifier  resistance ; inexpensive and so on. Difficult to be done with the same conditions of the above stabilizers can be selected according to the product performance, use, and processing methods. Can be classified according to the principal component, metallic soaps , lead compounds ( excluding lead soaps ) , inorganic salts, organic tin-based , composite stabilizers , organic type, in addition to epoxy compounds , phosphites , polyhydric alcohol. Readily decomposed during ( 2) the activation of a filler , an organic phosphorus pesticide active ingredients in the powder storage failure , rosin acids, tall oil acids as stabilizers , fillers by weakening activation pesticides , organic phosphorus powder can be improved stability. In the polycondensation process using a monofunctional substance as a stabilizer , and can be closed at one end leaving the role of macromolecules to achieve the purpose of adjusting the molecular weight . Transportation or when the monomer is purified by Stabilizers for pipe  distillation polymerization inhibitor to prevent polymerization , it is often referred stabilizers. Widespread use of stabilizers on industrial resins , plastics , rubber , synthetic fibers , pesticides, paints, adhesives, food, medicine, metallurgy and so on.

Market factors affecting chlorinated paraffins

Paraffin price rises far behind the rate of  PVC stabilizer increase in raw material prices , is expected in March paraffin price is still some upside ; Again , most manufacturers inventory is not chlorinated paraffin , the market outlook is conducive to the operation ; Finally, the majority of enterprises production operations in the profit or protect the room , there is a strong desire to efficiency losses .
The main factors affecting the market paraffin First decline in  Impact modifier effective demand downstream in February than in January , as part of the user during the Spring Festival holiday , agricultural plastic products, cable and other industries demand has shrunk ; Third Ordinary domestic PVC market remained stable , chlorinated paraffin market stability for a certain effect ; Fourth logistics has changed , manufacturers of raw materials into the plant, factory relatively smooth ; Fifth liquid wax price volatility is not chlorinated paraffin market in March is an annual off-season by the gradual transition to the season period, as the season gets warmer, downstream users demand will gradually increase , manufacturers expect the majority of chlorinated paraffin production  plastic flame retardant and sales will gradually rise ; Secondly , early liquid paraffin wax prices rose so rapidly rising costs .

Several types of coated titanium dioxide do you know

There are two kinds of titanium dioxide  magnesium hydroxide coated. One is organic and inorganic coated capsule, two envelope ways different emphases, both methods can be used together.
Of titanium dioxide to improve weather resistance and chemical stability, improved titanium dioxide in various dispersion media, typically a surface treatment of the titanium dioxide. White inorganic particle surface is formed on the surface in a uniform layer of colorless or white inorganic oxide film to plug the white light activation, and greater durability. Organic surface treatment coating layer is a white organic oxide film or a surfactant, the white particles remain dispersed in the organic medium and PVC stabilizer  can be better compatible with uniformly dispersed. Surface treatment of the white powder, the inorganic surface treatment generally the first, after the organic surface treatment. Surface-treated inorganic material is generally used SiO2 (silica), Al203 (alumina), ZrO (zirconium oxide), ZnO (zinc oxide).

Activated alumina to let you know it’s powerful functions and uses

Activated alumina, also known as activated alumina . Alumina used in the
catalyst is usually specifically aluminium stearate  referred to as ” activated alumina “, which
is a porous, high dispersion of solid materials, a large surface area, the
porous surface with the required catalytic properties , such as adsorption
properties, surface activity, good thermal stability, so widely used as
chemical catalysts and catalyst supports.
Second, use
This product can be used as high fluoride drinking water fluoride removal
agent ( fluoride removal capacity ) , benzene production cycle alkane
defluorination agent , transformer oil regeneration deacidification agent for
oxygen industry , textile industry, the electronics industry gas drying , air
drying and automation instruments Titanium dioxide rutile  in the fertilizer , petrochemical and other
industries for desiccant drying , cleaning agents ( dew point up to -40
degrees ) , in air separation industry PSA dew point up to -55 degrees . Is a
trace of water depth and efficient desiccant drying . Very suitable for non-
thermal regeneration devices.
Third, regeneration
Regenerant solution using sodium hydroxide , aluminum sulfate solution may
also be used .
The concentration of sodium hydroxide solution of regenerant used 0.75% -1% ,
1g sodium fluoride consumption can be removed per 8-10g solid sodium
hydroxide required calculations, the amount of renewable liquid 3-6 times the
volume of the filter . Regenerant solution of aluminum sulfate concentrations
were 2-3 % , the amount of consumption of aluminum sulfate per 1g of fluoride
required to remove the solid aluminum sulfate 60-80g calculated .
Fourth, the preparation or sources
Activated Alumina ( Formula Al2O (3-x) (OH) 2x, 0 <x <0.8) is currently the
world’s large-scale use of inorganic chemical products. The activated alumina
has a porous structure, high surface area , and in an unstable transition
state , and thus has a greater activity. In the petrochemical , fertilizer
industry, widely used as catalysts , catalyst PVC processing aid  supports. Activated alumina and
adsorption characteristics, and thus used as a gas and liquid desiccant,
adsorbent for gas purification , drinking water fluoride removal agent ,
industrial effluent color and odor eliminating agents. Today is the main
industrial activated alumina products are produced by rapid dehydration .
Activated alumina is sufficiently finely ground through to the original grain
size of 1μm of α-Al2O3 as the basic component ( 20% -90% ) of calcined
alumina .

Wood Flame What are the basic characteristics

1 : flame retardant high effectiveness , both  Plastic impact modifier to prevent flaming combustion , but also suppressing smoldering ( flameless combustion , red hot combustion ) ; 2: Non-toxic fire retardant itself in the production and use of the process does not pollute the environment , flame retardant wood pyrolysis products should be less smoke, low toxicity, non-irritating and non-corrosive ; 3: flame retardant lasting, does not occur in the course of heat, photolysis , hydrolysis and loss is not easy ;
4: low moisture absorption , good dimensional stability retardant wood ; 5 : wood physical and mechanical properties and process performance were not affected ;
6: with anti- rot, anti-moth properties, Wood Flame , TGP Wood Flame ; 7: The stearate aluminum  timber visual, tactile and other environmental science and regulation characteristics were not affected ; 8: low cost, rich source , easy to use . But most of the halogen-containing flame retardants have not been completely banned, the fact is that it is difficult to find a truly completely replace their products .
As for harm , sometimes seem alarmist, our country has no right decabromodiphenyl ether flame retardants use restrictions. Its harmfulness may not be so terrible as the legendary flame retardant on stearate magnesium  the natural and human hazards negligible compared to fire

PVC processing aids major role

PVC is a very special thermoplastics, it is easy to methyl tin stabilizer  decompose the pure resin processing, poor mobility, low impact strength, poor weather resistance and therefore require in the process to add various auxiliary materials to improve their performance. Such as: lubricants, heat stabilizers, impact modifiers, processing aids. Processing aids in the development and application process, by product ingredients can be divided into the following broad categories: methyl methacrylate (MMA) / acrylate copolymer, MMA / styrene copolymer, acrylonitrile / styrene, etc., currently Use the largest, the best is MMA / acrylate copolymer. 2, the role of
Processing aids (Processing Aid) main role is to:
1) to accelerate the process of PVC plastics.
2) to improve the rheological properties of the thermoplastic melt.
3) improve the thermo-elastic mechanical  antimony flame retardant properties of the melt state.
4) improve the quality of products, the appearance of the other integrated functions.
Although the processing aid added is less, but to improve the performance of PVC processing is very important. Impact modifier and processing aid ACR ACR are acrylate polymer, but because of the different formulations performance ratio and different structures, impact the ACR about 10-20% of methyl methacrylate and acrylic acid about 80-90% esters. MBS impact modifier ACR as the same as the core-shell structure. And MBS, CPE impact modifiers, etc. compared to the processability and weather resistance, good surface finish, especially for outdoor goods, in foreign countries, acrylic impact  iron oxide black  modifiers because environmental protection, excellent performance, weather has been replaced by high-performance CPE impact modifier.

Add some introductory flame retardants

Adding flame retardants in plastics and inorganic fillers, the  plastic flame retardant combustion characteristics of the plastic manufactures to get Mei Shan . Inorganic flame retardants commonly used aluminum hydroxide , magnesium hydroxide, magnesium carbonate, zinc borate , zinc oxide = ; organic chlorinated flame retardants , hexabromobenzene , decabromodiphenyl ether. Fillers are calcium carbonate , talc, perlite powder , vermiculite powder , clay and so on. To the resin well fused with the inorganic flame retardant , to the inorganic flame retardant, an inorganic filler surface treatment. Common surface treatment agents include silicones, paraffin.
Blends
In all plastic resins, halogen-containing polymers are generally nonflammable , since the hydrogen halide in the combustion process of capturing [OH] – generate H 2O, lower [OH] – the role of the combustion  fluorescent brightener is difficult to proceed. If the flame retardant resin with a halogen poor resin blends , the obtained resin better flame retardant properties than the original .
Grafted onto the base polymer widely used flame retardant monomer graft copolymerization good . For example, in vinyl chloride monomer grafted ABS resin , a vinyl chloride content reaches a certain amount , it has good flame retardant properties, the tetrabromobisphenol-A reaction with epoxy resin , can be obtained tetrabromobisphenol A diglycidyl glycerol ether epoxy resins, which amounted to 16% of a halogen-containing to 50% . The higher bromine content , the lead stearate  better the flame retardancy . Tetrabromobisphenol A plus too much, make products, electrical and mechanical properties decreased, brominated epoxy resin often used in conjunction with other epoxy resin , the resin of the electrical and mechanical properties without much decline .

Widely magnesium stearate

1 This product is used as PVC heat stabilizers, as well as cosmetics annual flour , soothing ointment and pharmaceutical tablet material ( forming drugs, lubricating agents ) ; flour for school bright and  calcium zinc stabilizer transparent manipulation of lubrication ; paint industry for transparent plain agent. PVC stabilizers as metal soaps used in multi-line cadmium, barium , calcium , zinc and magnesium salts of higher fatty acids , lauric acid into a base salts of stearic acid . Metal soap stabilizers types and properties of the metal varies radical , generally following rules : Heat resistance: cadmium , zinc soap initial heat resistance ; barium, calcium , magnesium, strontium soap, long-term heat resistance , lead soap in the middle . Weather resistance: cadmium, zinc , lead , barium, tin soap is better. Processing: lead, cadmium soap lubrication is good, but also very radical impact on lubricity . A metal for iron oxide red  the same purpose , an aromatic aliphatic better than in the molecular chain of the aliphatic radical lubricating the longer the better . Barium, calcium , magnesium, strontium soap lubrication is poor, but can be good gelation pregnant . Analytical Pressure : barium, calcium , magnesium, strontium precipitate as soap prone to pressure , while zinc , cadmium, lead soap is less prone to pressure analysis , the molecular chain length of fatty acid soap , the more sub- precipitated heavy pressure , the more calendar spray cream harm . Lead, cadmium soap toxicity, vulcanized pollution. In the non-toxic formula more calcium, zinc soap ; sulfide contamination -resistant formula more barium, zinc soaps. Magnesium stearate can be regarded as non-toxic , the United States , Germany and Japan allow the base used in contact with heat stabilizer for shoes  food products, but as a heat stabilizer for PVC applications are not widespread . In China Pharmacopoeia Pharmacopoeia and some other countries are contained in this species , pharmacopoeia of magnesium content, moisture , heavy metals , iron, sulfate and chloride content have made provisions . (2) is used in cosmetics powder products , can improve adhesion, lubrication, but also as a medicine tablet material .

Zinc stearate HANDLING AND STORAGE Precautions

Zinc stearate in storage, be sure to pay more attention. Zinc stearate is commonly used in industrial production of raw materials, in many industries have wide applications. But Xiao Bian found Barium soap  that many enterprises in the use of zinc stearate when there are many drawbacks, for safety and production planted many security risks. In order to regulate the use of zinc stearate, zinc stearate, the following detailed overview HANDLING AND STORAGE Precautions:
Handling Precautions: closed operation, local exhaust ventilation. The operator must go through specialized training, strict adherence to rules. Proposed operators wear self-absorption filter respirators, wearing chemical protective safety glasses. Keep away from fire, heat, workplace smoking. Use explosion-proof ventilation systems and equipment. Avoid  heat stabilizer for panel generating dust. Avoid contact with oxidizing agents, acids. Handling of light when light unloading, packaging and containers to prevent damage. Equipped with the appropriate variety and quantity of fire equipment and emergency equipment leakage. Empty containers may be harmful residues.
Storage Precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat. Should oxidants, acids stored separately and avoid mixing reservoir. Equipped with the appropriate variety and  glyceryl monostearate quantity of fire equipment. Storage areas should be equipped with suitable host material spill.