CN1235938A

CN1235938A - Mortar plasticizing powder

Info

Publication number: CN1235938A
Application number: CN 98112486
Authority: CN
Inventors: 许睿
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-20
Filing date: 1998-05-20
Publication date: 1999-11-24

Abstract

Mortar plasticizing powder is prepared by mixing mother liquor and sepiolite powder, and the mother liquor is prepared through the saponification reaction of water, rosin and sodium carbonate, and compounding with triethanolamine. It has stable property and low cost, and is used widely for mortar to construct masonry work, whitewash and stick ceramic tile and marble, and for waterproof concrete below C20 in civil building engineering.

Description

Mortar plasticizing powder

The present invention relates to a kind of mortar additive, particularly a kind of mortar plasticizing powder.

Mortar is widely used in building by laying bricks or stones in the construction work, wipes one's face, bonding applique surface material, the cementation of fissures etc., and be the material of construction that a kind of consumption is big and involve a wide range of knowledge.In construction, the cement in the mortar, lime consumption is over-quota is a general hard nut to crack, has a strong impact on engineering cost and quality.Be performance, reduction engineering cost, the assurance construction quality that improves mortar, people have developed mortar additive and have solved the problems referred to above, mortar additive mainly is that organic sodium abietate air entrapment agent is main composition, from state is that colloid concentrates shape or colloidal solution is main, existing nearly 20 years history in construction work, but, make troubles for use, packing, transportation owing to be the colloid thing.Lime extract on the present market, the foaming powder, hard flours etc. are that the sodium abietate colloid is processed into solid, powdery with clay as carrier, cost is higher, other has the MT efficient mortar additive of producing in recent years, it is being mother liquor after the spent pulping liquorization, be processed into solid, powdery with solid support material, its waste liquid derives from the movement of paper plant's vitriol alkaline process reed papermaking, its Chemical Composition, concentration etc. are that paper plant can't not need the refuse controlled yet, yet, as the raw material of producing mortar additive is the quality that can directly influence product, cause unstable properties, the defective that easy rancid rotten grade can't overcome.

The solid powdery mortar plasticizing powder that the object of the present invention is to provide a kind of product performance to stablize, can rancidly not go bad, cost is low.

The objective of the invention is to realize: mortar plasticizing powder with following manner, be to form by the mother liquor of 3%-20% and the sepiolite stirring of 80%-97%, its mother liquor obtains with following preparation method: the raw materials by weight that adds in reactor is to add water 29%-32%, and be warming up to more than 95 ℃, add yellow soda ash Na ₂CO ₃4%-10%, rosin 40%-45% add is pulverized in dissolving again, being higher than under 95 ℃ of temperature saponification complete, add trolamine 15%-25% when being cooled to 50 ℃-70 ℃ then, whole process is interrupted stirring under normal pressure.It is 25%-40% that sepiolite is selected working substance content for use, and fineness is the above sepiolites of 200 orders.

This mortar plasticizing powder is by commercially available industrial chemicals, through rationally filling a prescription, pass through saponification reaction, compound organic amine becomes mother liquor, select for use then absorption big, in water, discharge fast solid support material and be processed into solid powder thing, its stable performance, can rancidly not go bad, cost is low, is widely used in building by laying bricks or stones of China Democratic National Construction Association's engineering, whitewash, paste various mortars such as ceramics, ceramic tile, marble and≤water-proof concrete of C20.

Below in conjunction with embodiment the present invention is described in further detail:

Fig. 1 is the homemade direet-heating type constant temperature water bath of a present invention reactor front view;

Fig. 2 is the homemade direet-heating type constant temperature water bath of a present invention reactor left view.

Embodiment:

At first prepare mother liquor: water intaking 31.5Kg, Na ₂CO ₃9.5Kg, rosin 40Kg, trolamine 20Kg.At first in reactor, add water 31.5Kg, be warming up to more than 95 ℃, add Na ₂CO ₃9.5Kg dissolving then adds and pulverizes rosin 40Kg, saponification is 2 hours under＞95 ℃ of temperature, adds trolamine 20Kg when being cooled to 70 ℃ then.Whole process is interrupted stirring under normal pressure.With reference to Fig. 1, Fig. 2, this homemade its volume of direet-heating type constant temperature water bath reactor is 250 liters, can directly use coal combustion, three 3KW-5KW of also available immerseable electricradiator (spiral tube) make thermal source, power of motor stirs for the 0.35-0.7KW speed change, this reactor is an open type, and blanking, now to examine reaction process all very convenient.Its principle of work is: in water-bath 2, add the work of can lighting a fire behind the position of the supreme liquid limit device 5 of entry, earlier with water required in the mother liquor from reinforced adding, (among the figure ↓ indication place), treat that water is heated to more than 95 ℃ after, put into Na again ₂CO ₃, rosin, start anchor stirrer 3, when water is warming up to more than 95 ℃ again, promptly have a large amount of bubbles to produce, liquid level raises, and stops to stir or reducing firepower this moment, treat to strengthen firepower after half an hour, start agitator,, get a little sample calibrating if no longer when bubble occurring, if reaction is perfect, keep temperature to add trolamine after half an hour approximately, at the reactor internal reaction about one hour, mother liquor was that limpid thick liquid can be emitted for powder process from discharge port and used.1-reactor among the figure, 2-water-bath, 3-anchor stirrer, 4-conductive fluid, the last liquid limit device of 5-, 6-lower limit bearing, 7-power bearing, 8-discharge port, △-heating surface

Powder process: get mother liquor 18.5Kg, sepiolite powder 81.5Kg puts into general stirrer with sepiolite 81.5Kg, sprinkle mother liquor while stirring, and so not only mark but also blended method were come the absorption mother liquor, and the absorption process adds mother liquor and slowly disperses, whole process one hour.The sepiolite that present embodiment selects for use the Hunan to produce, its working substance content 25-40%, fineness is more than 200 orders.

Claims

1. mortar plasticizing powder, it is characterized in that forming by the mother liquor of 3%-20% and the sepiolite stirring of 80%-97%, its mother liquor obtains with following preparation method: the raw materials by weight that adds in reactor is to add water 29%-32%, and is warming up to more than 95 ℃, adds yellow soda ash Na ₂CO ₃4%-10%, rosin 40%-45% add is pulverized in dissolving again, being higher than under 95 ℃ of temperature saponification complete, add trolamine 15%-25% when being cooled to 50 ℃-70 ℃ then, whole process is interrupted stirring under normal pressure.

2. according to the described mortar plasticizing powder of claim 1, it is characterized in that: it is 75%-40% that sepiolite is selected working substance content for use, and fineness is the above sepiolites of 200 orders.