CN103253956A - Powder sepiolite foaming agent - Google Patents

Abstract

The invention discloses a powder sepiolite foaming agent. The key point of the technical scheme is as follows: the powder sepiolite foaming agent consists of dried sepiolite, high-viscosity attapulgite clay powder, lauryl sodium sulfate, sodium percarbonate, sodium polyacrylate, sodium pyrophosphate and sodium polynaphthylene sulfonate. Ingredients of the powder sepiolite forming agent are stirred, milled and packaged to obtain a finished product of the powder sepiolite foaming agent. The powder sepiolite foaming agent has the advantages of being strong in foaming capacity, high in foaming multiple, large in unit volume foam yield, good in foam stability, capable of not de-foaming for a long time, fine and smooth in foams, uniform in size of holes generated in a medium, low in bleeding amount, good in compatibility with the used medium and the like, and outer films of foams are good in tenacity and unlikely to break. A product, which is produced by the powder sepiolite foaming agent, is not only capable of effectively controlling noise pollution, but also capable of achieving a thermal-insulation function and an air-purifying function. Besides, the powder sepiolite foaming agent is suitable for producing light boards, light walls and noise-reducing and de-noising products.

Description

Powdery sepiolite whipping agent

Technical field

The present invention relates to whipping agent, be specifically related to a kind of powdery sepiolite whipping agent.

Background technology

City noise is having a strong impact on city resident's orthobiosis and health of human body, city noise mainly refers to traffic noise, factory noise, construction noise pollution and noise of social activities, its The noise scope and influence degree are serious day by day, to the influence of civic living environment greatly, become one of noticeable city environmental pollution problem.

The control noise is taked measures such as damping, sound insulation, sound absorption, sourdine, personal protection and architectural composition usually, weaken as far as possible or reduce the vibration of sound source, acoustic energy absorption in propagating is fallen, place obstacles and make that sound is all or part of to reflect away, weaken the effect of noise, to reach the purpose of control noise.

Usually adopt quieter material to produce products such as some acoustical panels, sound insulation Wall, sound-absorbing net and sound damper and control sound pollution, it is after handling by foaming, to improve the performance of the said products that some materials are also arranged.

The kind of whipping agent is more, and for the control sound pollution has been made bigger contribution, but the said products can only be used for control sound pollution, the function that does not purify air.

Summary of the invention

The objective of the invention is to overcome weak point in the prior art, a kind of powdery sepiolite whipping agent is provided.

Powdery sepiolite whipping agent is made up of dried sepiolite, activated attapulgite, sodium lauryl sulphate, SPC-D, sodium polyacrylate, trisodium phosphate and poly-naphthaldehyde sulfonate sodium.

The production method of powdery sepiolite whipping agent: will stir in the powdery sepiolite whipping agent batching input stirrer, carry out abrasive dust in the back input grinding machine that stirs, be packaged as the finished product of powdery sepiolite whipping agent.

Sepiolite be a kind of tool layer chain-like structure contain Shuifu County's magnesium silicate clay mineral, have sliding sense and puckery sense, sticking tongue, property is crisp under the drying regime, light weight, and shrinking percentage is low, plasticity-is good, specific surface is big, and adsorptivity is strong, and sepiolite also has decolouring, heat insulation, insulation, anticorrosive, radioprotective and performance such as thermally-stabilised.

The sepiolite raw ore is conducive to improve the particle fineness of sepiolite through abrasive dust after the drying treatment, can increase specific surface area and the adsorptive power of sepiolite.

Attapulgite has another name called polygorskite or Palygorskite, be a kind of layer of chain-like structure contain Shuifu County's zeopan clay mineral, attapulgite has unique layer chain-like structure feature, in its structure, there is the lattice displacement, so contain Na+, Ca2+, Fe3+, the Al3+ of non-quantitative in the crystal, crystal is needle-like, fibrous or fiber collection shape.Attapulgite has unique dispersion, high temperature resistant, anti-good colloidal property such as saline and alkaline and higher adsorptive power, and has certain plasticity-and cohesive force.

The pH value of attapulgite clay raw ore is 8～9, need to carry out acidification in the present invention, attapulgite clay after the acidified processing is activated attapulgite, the various performances of activated attapulgite all will be greatly improved, particularly strengthened the adsorption cleaning ability of Attapulgite, activated attapulgite pH value is controlled to be 5.5～7.5, water content≤2%.

Sodium lauryl sulphate is white or faint yellow powdery, and is water-soluble, insensitive to alkali and hard water, has decontamination, emulsification and excellent foaming power, is a kind of nontoxic anion surfactant; When powdery sepiolite whipping agent and water mix, a large amount of bubble of the common generation of sodium lauryl sulphate and SPC-D.

SPC-D is a kind of inorganic salt, the granulated powders that is white in color, SPC-D with can decompose rapidly after water contacts, discharge a large amount of oxygen.

Sodium polyacrylate is a kind of new functional macromolecule material, be white or buff powder, be dissolved in cold water, stable to temperature variation, be a kind of tensio-active agent with multiple property, be conducive to improve the thickening, foaming of powdery sepiolite whipping agent, stable, emulsification, dispersion, bonding, film forming and effect of water keeping in the present invention.

Trisodium phosphate is a kind of water white transparency crystallization or white crystalline powder, and is soluble in water, in the present invention as dispersion agent and emulsifying agent.

Poly-naphthaldehyde sulfonate sodium is brown or the dark-brown powder, and soluble in water, acidproof, alkaline-resisting, anti-hard water has good diffustivity; Generate a large amount of bubbles when powdery sepiolite whipping agent and water mixing, the bubble that trisodium phosphate and poly-naphthaldehyde sulfonate sodium are conducive to generate distributes more even.

The present invention is achieved by following technical proposals:

1, powdery sepiolite whipping agent batching is made up of following component by weight percentage: dried sepiolite 25～75%, activated attapulgite 5～15%, sodium lauryl sulphate 1～35%, SPC-D 1～25%, sodium polyacrylate 0.01～5%, trisodium phosphate 0.01～5% and poly-naphthaldehyde sulfonate sodium 0.01～5%.

The production method of described powdery sepiolite whipping agent: will powdery sepiolite whipping agent stir in the batching input stirrer, and carry out abrasive dust in the back input grinding machine that stirs, particle fineness≤0.074 millimeter is packaged as the finished product of powdery sepiolite whipping agent.

Described dried sepiolite production method is: 1. will pulverize in the sepiolite raw ore input pulverizer, particle fineness after the pulverizing≤2 millimeter, 2. the sepiolite after will pulverizing is transported to and carries out drying in the rotary type stoving oven, be 1～3 hour time of drying, drying temperature control is at 40～110 ℃, dried sepiolite water content≤15%, the sepiolite of handling through the super-dry modification is dried sepiolite.

The production method of described activated attapulgite is: the 1. preparation of dilute sulphuric acid, formed by following component by weight percentage: the sulfuric acid 3～5% of concentration 98 ﹪, water 95～97%; 2. the batching of acidification comprises following component by weight percentage: attapulgite clay raw ore 55～65%, and dilute sulphuric acid 35～45% slowly adds dilute sulphuric acid and to carry out acidification in the attapulgite clay raw ore; 3. extruding: with Concavo-convex excellent stone clay after the acidify, push by extrusion machine and to be flap, the thickness of flap≤3 millimeter; 4. roasting: the flap of attapulgite clay is transported to and carries out roasting in the stoving oven, and roasting time is 1.5～3 hours, and maturing temperature is controlled at 320～450 ℃, and the attapulgite clay flap after the roasting is activated attapulgite.

This production method is the production method that adopts by the activated attapulgite of the inventor in " embossed rod medicinal health-care bathing-mud powder " of application on March 7th, 2006, the Chinese patent publication number of embossed rod medicinal health-care bathing-mud powder is: CN1850026, open day: on October 25th, 2006.

Described water content is weight percentage.

Powdery sepiolite whipping agent is added in the medium; mix with water the back through stirring; can reduce surface tension of liquid and discharge a large amount of gas; in medium, produce a large amount of even and stable foams; be used for the multiple foam materials of cast, layering can not occur in the casting process, demould time is shorter; gas contains a certain amount of oxygen, is conducive to protect the air ambient of working-yard.

The medium that powdery sepiolite whipping agent is suitable for has materials such as various cement, flyash and nonmetalliferous ore composition.

When using sodium lauryl sulphate merely, the generation foam is very fast, but what break and disappear is also fast, cause the less stable of foam, formed a kind of compound foaming agent behind sepiolite and other batching and the sodium lauryl sulphate compatibility among the present invention, have that foaming power is strong, foam expansion is high, unit volume produces that the bubble amount is big, foam adventitia good toughness is difficult for brokenly, froth stability is good, can be for a long time not froth breaking, foam exquisiteness, advantage such as the hole size that generates in medium is even, bleeding quantity is low and the consistency of working medium is good.

The product that uses powdery sepiolite whipping agent to produce not only can effectively be controlled sound pollution, the function that is incubated in addition and purifies air; These products are used for facilities such as motorway, viaduct, urban light rail, subway, factory, warehouse, public place.

Powdery sepiolite whipping agent is applicable to produces light weight board, lightweight body of wall and sound-deadening and noise-reducing product.

Embodiment

The invention will be further described below in conjunction with embodiment:

1, powdery sepiolite whipping agent batching is made up of following component by weight percentage: dried sepiolite 52%, activated attapulgite 8%, sodium lauryl sulphate 26%, SPC-D 12.4%, sodium polyacrylate 0.6%, trisodium phosphate 0.5% and poly-naphthaldehyde sulfonate sodium 0.5%.

The production method of described powdery sepiolite whipping agent: will powdery sepiolite whipping agent stir in the batching input stirrer, and carry out abrasive dust in the back input grinding machine that stirs, particle fineness≤0.044 millimeter is packaged as the finished product of powdery sepiolite whipping agent.

Described dried sepiolite production method is: 1. will pulverize in the sepiolite raw ore input pulverizer, particle fineness after the pulverizing≤2 millimeter, 2. the sepiolite after will pulverizing is transported to and carries out drying in the rotary type stoving oven, be 2 hours time of drying, drying temperature is controlled at 65～100 ℃, dried sepiolite water content≤14%.

Claims (1)

1. powdery sepiolite whipping agent, it is characterized in that powdery sepiolite whipping agent batching is made up of following component by weight percentage: dried sepiolite 25～75%, activated attapulgite 5～15%, sodium lauryl sulphate 1～35%, SPC-D 1～25%, sodium polyacrylate 0.01～5%, trisodium phosphate 0.01～5% and poly-naphthaldehyde sulfonate sodium 0.01～5%;

The production method of described powdery sepiolite whipping agent: will powdery sepiolite whipping agent stir in the batching input stirrer, and carry out abrasive dust in the back input grinding machine that stirs, particle fineness≤0.074 millimeter is packaged as the finished product of powdery sepiolite whipping agent;

Described dried sepiolite production method is: 1. will pulverize in the sepiolite raw ore input pulverizer, particle fineness after the pulverizing≤2 millimeter, 2. the sepiolite after will pulverizing is transported to and carries out drying in the rotary type stoving oven, be 1～3 hour time of drying, drying temperature is controlled at 40～110 ℃, dried sepiolite water content≤15%;

The production method of described activated attapulgite is: the 1. preparation of dilute sulphuric acid, formed by following component by weight percentage: the sulfuric acid 3～5% of concentration 98 ﹪, water 95～97%; 2. the batching of acidification comprises following component by weight percentage: attapulgite clay raw ore 55～65%, and dilute sulphuric acid 35～45% slowly adds dilute sulphuric acid and to carry out acidification in the attapulgite clay raw ore; 3. extruding: with Concavo-convex excellent stone clay after the acidify, push by extrusion machine and to be flap, the thickness of flap≤3 millimeter; 4. roasting: the flap of attapulgite clay is transported to and carries out roasting in the stoving oven, and roasting time is 1.5～3 hours, and maturing temperature is controlled at 320～450 ℃, and the attapulgite clay flap after the roasting is activated attapulgite.