CN103058569A

CN103058569A - Method for preparing triethanolamine retarding and air-entraining agent

Info

Publication number: CN103058569A
Application number: CN2011103232295A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-22
Filing date: 2011-10-22
Publication date: 2013-04-24

Abstract

The invention discloses a method for preparing a triethanolamine retarding and air-entraining agent. The product belongs to the field of a chemical construction material. By adopting the method, triethanolamine, water, lignosulphonate calcium, methanol, glycogen, tert-butylamine, and a rosin resin air-entraining agent are taken as materials; and a chemical reaction kettle is taken as a reaction container to prepare the triethanolamine retarding and air-entraining agent. The method is simple in production technology, and mild in reaction condition; the product has good retarding and air-entraining effects; the peaceability and the pumpability of concrete can be greatly improved after the triethanolamine retarding and air-entraining agent is added to the concrete; the liquidity, the water-retaining property, the cohesiveness, the durability, the resistance to corrosion and the freezing resistance of concrete mixture can be obviously improved, and the method is suitable for continuous casting of a large batch of concrete.

Description

A kind of preparation method of trolamine slow setting air entrapment agent

Technical field

Product of the present invention belongs to the chemical building material field, relates in particular to a kind of preparation method of trolamine slow setting air entrapment agent.

Background technology

The effect of concrete retarder is to delay concrete coagulating time and to the admixture that later strength has no significant effect, mix retardant in concrete, its objective is in order to prolong the setting time of cement.Concrete retarder is of a great variety, trolamine in the organic amine is exactly one of material of producing concrete retarder, the molecular formula of trolamine is C6H15NO3, and molecular weight is 149.19, and outward appearance is colourless viscous liquid, fusing point is 21.2 ℃, little smell that ammonia is arranged, very easily moisture absorption, soluble in water, methyl alcohol, acetone, be slightly soluble in benzene, ether, tetracol phenixin, normal heptane, be strong basicity.The main application of trolamine is: as softening agent, neutralizing agent, lubricant, anticorrosive agent, moistening agent, dispersion agent, solidifying agent, also can be used for synthetic surfactant, washing composition, stablizer 1.; 2. as inhibiter, the car engine refrigerant of boiler water processing, also can be used for weave special product, wax, rumbling compound, weedicide, petroleum demulsifier, makeup, cement additire, machining oil; 3. as the additive of cement attrition process, also can be used as concrete retarder or hardening accelerator uses, trolamine has certain delayed coagulation when using separately, can significant prolongation during especially with wooden calcium compound use cement setting time, but trolamine and villaumite or sodium sulfate compound use then morning, potent fruit was obvious.The present invention is a kind of slow setting air entrapment agent of the preparation take trolamine and wooden calcium as main raw material, with trolamine, water, wood calcium, methyl alcohol, glycogen, TERTIARY BUTYL AMINE, the Gum Rosin air entrapment agent is raw material, take chemical reaction kettle as reaction vessel, prepare trolamine slow setting air entrapment agent, it is simple to have production technique, reaction conditions is gentle, product has good slow setting, the bleed effect, this agent can significantly improve concrete workability after adding in the concrete, pumpability, can obviously improve the flowability of concrete mix, water-retentivity, cohesiveness, weather resistance, erosion resistance, frost resistance is adapted to continuously concrete casting in enormous quantities.

Summary of the invention

The problem to be solved in the present invention provides the method that a kind of batch prepares trolamine slow setting air entrapment agent, and this agent is produced take trolamine, water, wooden calcium, methyl alcohol, glycogen, TERTIARY BUTYL AMINE, Gum Rosin air entrapment agent as raw material; This preparation method's advantage is: production technique is simple, reaction conditions is gentle, product has good slow setting, bleed effect, this agent can significantly improve concrete workability, pumpability after adding in the concrete, can obviously improve flowability, water-retentivity, cohesiveness, weather resistance, erosion resistance, the frost resistance of concrete mix.The raw material of producing this product use has: trolamine 5%-7%, water 54%, wooden calcium 4%-6%, methyl alcohol 19%, glycogen 4%, TERTIARY BUTYL AMINE 2%, Gum Rosin air entrapment agent 10%.

The present invention can be achieved through the following technical solutions:

A kind of preparation method of trolamine slow setting air entrapment agent, its feature is made of following steps:

1. water is sent in the chemical reaction kettle, temperature is increased to 32 ℃, begin to stir, add while stirring trolamine, mix the wooden calcium of rear adding, stir and add methyl alcohol after 0.3 hour, stopped to stir insulation reaction after stirring 1 hour.

2. keep temperature-resistant, add while stirring glycogen, TERTIARY BUTYL AMINE, the timed interval of two kinds of raw material interpolations is 0.15 hour, after stirring, and standing and reacting 0.5 hour.

3. continue to stir after being cooled to normal temperature, while stirring the Gum Rosin air entrapment agent is added chemical reaction kettle, after mixing, stop to stir, blowing obtains finished product.

The invention has the beneficial effects as follows: the preparation method that a kind of trolamine slow setting air entrapment agent is provided, this preparation method's technique is simple, reaction conditions is gentle, product has good slow setting, bleed effect, can obviously improve flowability, water-retentivity, cohesiveness, weather resistance, erosion resistance, the frost resistance of concrete mix after this agent is added in the concrete, be adapted to continuously concrete casting in enormous quantities.

Embodiment

Embodiment 1

Be that 54% water is sent in the chemical reaction kettle with accounting for total amount, temperature is increased to 32 ℃, begin to stir, add while stirring that to account for total amount be 5% trolamine, mixing rear adding, to account for total amount be 6% wooden calcium, stir after 0.3 hour and to add that to account for total amount be 19% methyl alcohol, stopped to stir insulation reaction after stirring 1 hour; Keep temperature-resistant, adding while stirring that to account for total amount be 4% glycogen, accounting for total amount is 2% TERTIARY BUTYL AMINE, and the timed interval that two kinds of raw materials add is 0.15 hour, after stirring, and standing and reacting 0.5 hour; Be cooled to and continue behind the normal temperature to stir, will account for while stirring total amount and be 10% Gum Rosin air entrapment agent and add chemical reaction kettle, after mixing, stop to stir, blowing obtains finished product.

Embodiment 2

Be that 54% water is sent in the chemical reaction kettle with accounting for total amount, temperature is increased to 32 ℃, begin to stir, add while stirring that to account for total amount be 6% trolamine, mixing rear adding, to account for total amount be 5% wooden calcium, stir after 0.3 hour and to add that to account for total amount be 19% methyl alcohol, stopped to stir insulation reaction after stirring 1 hour; Keep temperature-resistant, adding while stirring that to account for total amount be 4% glycogen, accounting for total amount is 2% TERTIARY BUTYL AMINE, and the timed interval that two kinds of raw materials add is 0.15 hour, after stirring, and standing and reacting 0.5 hour; Be cooled to and continue behind the normal temperature to stir, will account for while stirring total amount and be 10% Gum Rosin air entrapment agent and add chemical reaction kettle, after mixing, stop to stir, blowing obtains finished product.

Embodiment 3

Be that 54% water is sent in the chemical reaction kettle with accounting for total amount, temperature is increased to 32 ℃, begin to stir, add while stirring that to account for total amount be 7% trolamine, mixing rear adding, to account for total amount be 4% wooden calcium, stir after 0.3 hour and to add that to account for total amount be 19% methyl alcohol, stopped to stir insulation reaction after stirring 1 hour; Keep temperature-resistant, adding while stirring that to account for total amount be 4% glycogen, accounting for total amount is 2% TERTIARY BUTYL AMINE, and the timed interval that two kinds of raw materials add is 0.15 hour, after stirring, and standing and reacting 0.5 hour; Be cooled to and continue behind the normal temperature to stir, will account for while stirring total amount and be 10% Gum Rosin air entrapment agent and add chemical reaction kettle, after mixing, stop to stir, blowing obtains finished product.

Claims

1. the preparation method of a trolamine slow setting air entrapment agent is characterized in that: take trolamine 5%-7%, water 54%, wooden calcium 4%-6%, methyl alcohol 19%, glycogen 4%, TERTIARY BUTYL AMINE 2%, Gum Rosin air entrapment agent 10% as raw material, obtain finished product by following steps.

2. the preparation method of a kind of trolamine slow setting air entrapment agent according to claim 1, the feature of its first step is: water is sent in the chemical reaction kettle, temperature is increased to 32 ℃, begin to stir, add while stirring trolamine, mix the wooden calcium of rear adding, stir and add methyl alcohol after 0.3 hour, stopped to stir insulation reaction after stirring 1 hour.

3. the preparation method of a kind of trolamine slow setting air entrapment agent according to claim 1, the feature of its second step is: keep temperature-resistant, add while stirring glycogen, TERTIARY BUTYL AMINE, the timed interval of two kinds of raw material interpolations is 0.15 hour, after stirring, standing and reacting 0.5 hour.

4. the preparation method of a kind of trolamine slow setting air entrapment agent according to claim 1, the feature in its 3rd step is: continue to stir after being cooled to normal temperature, while stirring the Gum Rosin air entrapment agent is added chemical reaction kettle, after mixing, stop to stir, blowing obtains finished product.