CN106348635A - Polycarboxylic acid water reducing agent - Google Patents
Polycarboxylic acid water reducing agent Download PDFInfo
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- CN106348635A CN106348635A CN201510421719.7A CN201510421719A CN106348635A CN 106348635 A CN106348635 A CN 106348635A CN 201510421719 A CN201510421719 A CN 201510421719A CN 106348635 A CN106348635 A CN 106348635A
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Abstract
The invention discloses a polycarboxylic acid water reducing agent which is prepared from the following raw materials in parts by weight: 10 to 15 parts of isobutylene alcohol polyoxyethylene ether, 5 to 8 parts of tartaric acid, 1 to 3 parts of acrylic acid, 0.5 to 2 parts of sodium methallyl sulfonate, 1 to 2 parts of a preservative and 10 to 20 parts of water. The preservative is a para hydroxy benzoate preservative. A preparation method of the polycarboxylic acid water reducing agent comprises the following step: placing isobutylene alcohol polyoxyethylene ether, tartaric acid, crylic acid, sodium methallyl sulfonate, the preservative and water together into a stirring reaction kettle for stirring for 15 min to obtain the polycarboxylic acid water reducing agent. According to the polycarboxylic acid water reducing agent provided by the invention, the raw material components are readily available and relatively low in cost; furthermore, the product is stable in performance, high in applicability and suitable for cement of various specifications and types; the product has the advantages of high water reducing property, relatively high compressive strength, nontoxicity, zero pollution, zero formaldehyde and environment friendliness.
Description
Technical field
The present invention relates to concrete additive technical field, more particularly, to a kind of polycarboxylate water-reducer.
Background technology
Water reducer refers to, under concrete workability and cement consumption permanence condition, to reduce mixing water amount, improve concrete strength；Or under workability and intensity permanence condition, save the additive of cement consumption.
Polycarboxylate water-reducer is a kind of high molecular weight water soluble polymer with pectinate texture, is also one of cement concrete utilization cement dispersants.Main chain is usually polyacrylic acid or polymethylacrylic acid, and the Polyethylene Glycol of different chain length is side chain, by the copolymerization with various functions monomer, can introduce multiple functional group such as carboxyl, sulfonic group, hydroxyl thus realizing different application performances in polymer molecule.
At present, on market, the polyethers water reducer of main flow mostly is the Binary Aggregation system of acrylic acid and polyethylene glycol allyl (or Polyethylene Glycol isoamyl allyl ether), and the unsaturated sulfonic acid monomer such as some addition methylpropene sodium sulfonates forms ternary copolymerization system to lift its water-reducing property.But because polyether macromonomer has stronger chain transfer, the molecular weight not only making product is relatively low, molecular weight distribution broadens, and lead to make the long side chain of polyoxyethylene and sulfonic acid group in diminishing agent molecule molar fraction low, thus causing its water reducing ability and slump retaining substantially to reduce compared with polyesters water reducer.
Content of the invention
It is an object of the invention to provide a kind of water-reducing property is good, the high polycarboxylate water-reducer of comprcssive strength.
For realizing the above-mentioned purpose of the present invention, the present invention provides a kind of polycarboxylate water-reducer, is made up of the raw material of following parts by weight: isobutene alcohol polyoxyethylene ether 10-15 part, tartaric acid 5-8 part, acrylic acid 1-3 part, methylpropene sodium sulfonate 0.5-2 part, preservative 1-2 part, water 10-20 part.
Described preservative is paraben preservative.
The preparation method of described polycarboxylate water-reducer is: isobutene alcohol polyoxyethylene ether, tartaric acid, acrylic acid, methylpropene sodium sulfonate, preservative is placed on stirring 10-20min in stirred autoclave together with water, obtains final product.
Compared with prior art beneficial effects of the present invention.
The polycarboxylate water-reducer that the present invention provides, raw material components are readily available and cost is relatively low, its simple production process, and working condition is gentle, and no any discharge of poisonous waste will not produce substantial amounts of by-product in process of production, meets the requirement of energy-conserving and environment-protective；Additionally, this properties of product is stable, strong adaptability, it is adapted to the cement of plurality of specifications, model, and this product has that water-reducing property is good, comprcssive strength is higher, nontoxic pollution-free, without formaldehyde, environmentally safe advantage.
Specific embodiment
Further describe the present invention with reference to specific embodiment.
Embodiment 1.
The present embodiment 1 provides a kind of polycarboxylate water-reducer, is made up of the raw material of following parts by weight: 12 parts of isobutene alcohol polyoxyethylene ether, 5.5 parts of tartaric acid, 1 part of acrylic acid, 1 part of methylpropene sodium sulfonate, 1.5 parts of preservative, 18 parts of water.
Described preservative is paraben preservative.
The preparation method of described polycarboxylate water-reducer is: isobutene alcohol polyoxyethylene ether, tartaric acid, acrylic acid, methylpropene sodium sulfonate, preservative is placed on stirring 15min in stirred autoclave together with water, obtains final product.
Embodiment 2.
The present embodiment 2 provides a kind of polycarboxylate water-reducer, is made up of the raw material of following parts by weight: 10 parts of isobutene alcohol polyoxyethylene ether, 7 parts of tartaric acid, 1.5 parts of acrylic acid, 0.5 part of methylpropene sodium sulfonate, 2 parts of preservative, 15 parts of water.
Described preservative is paraben preservative.
The preparation method of described polycarboxylate water-reducer is: isobutene alcohol polyoxyethylene ether, tartaric acid, acrylic acid, methylpropene sodium sulfonate, preservative is placed on stirring 12min in stirred autoclave together with water, obtains final product.
Embodiment 3.
The present embodiment 3 provides a kind of polycarboxylate water-reducer, is made up of the raw material of following parts by weight: 14 parts of isobutene alcohol polyoxyethylene ether, 7.5 parts of tartaric acid, 3 parts of acrylic acid, 1.75 parts of methylpropene sodium sulfonate, 2 parts of preservative, 20 parts of water.
Described preservative is paraben preservative.
The preparation method of described polycarboxylate water-reducer is: isobutene alcohol polyoxyethylene ether, tartaric acid, acrylic acid, methylpropene sodium sulfonate, preservative is placed on stirring 10min in stirred autoclave together with water, obtains final product.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, those skilled in the art, in the essential scope of the present invention, the change made, change, adds or replaces, all should belong to protection scope of the present invention.
Claims (6)
1. a kind of polycarboxylate water-reducer, is made up of the raw material of following parts by weight: isobutene alcohol polyoxyethylene ether 10-15 part, tartaric acid 5-8 part, acrylic acid 1-3 part, methylpropene sodium sulfonate 0.5-2 part, preservative 1-2 part, water 10-20 part.
2. polycarboxylate water-reducer as claimed in claim 1 is it is characterised in that described preservative is paraben preservative.
3. polycarboxylate water-reducer as claimed in claim 1 is it is characterised in that be made up of the raw material of following parts by weight: 12 parts of isobutene alcohol polyoxyethylene ether, 5.5 parts of tartaric acid, 1 part of acrylic acid, 1 part of methylpropene sodium sulfonate, 1.5 parts of preservative, 18 parts of water.
4. polycarboxylate water-reducer as claimed in claim 1 is it is characterised in that be made up of the raw material of following parts by weight: 10 parts of isobutene alcohol polyoxyethylene ether, 7 parts of tartaric acid, 1.5 parts of acrylic acid, 0.5 part of methylpropene sodium sulfonate, 2 parts of preservative, 15 parts of water.
5. polycarboxylate water-reducer as claimed in claim 1, it is characterized in that, it is made up of the raw material of following parts by weight: 14 parts of isobutene alcohol polyoxyethylene ether, 7.5 parts of tartaric acid, 3 parts of acrylic acid, 1.75 parts of methylpropene sodium sulfonate, 2 parts of preservative, 20 parts of water.
6. the preparation method of polycarboxylate water-reducer as claimed in claim 1, it is characterised in that isobutene alcohol polyoxyethylene ether, tartaric acid, acrylic acid, methylpropene sodium sulfonate, preservative are placed on together with water stirring 10-20min in stirred autoclave, obtains final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421719.7A CN106348635A (en) | 2015-07-18 | 2015-07-18 | Polycarboxylic acid water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421719.7A CN106348635A (en) | 2015-07-18 | 2015-07-18 | Polycarboxylic acid water reducing agent |
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| CN106348635A true CN106348635A (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510421719.7A Pending CN106348635A (en) | 2015-07-18 | 2015-07-18 | Polycarboxylic acid water reducing agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383412A (en) * | 2018-01-23 | 2018-08-10 | 云南森博混凝土外加剂有限公司 | Pulvis polycarboxylic acid concrete water-reducing agent |
| CN113861769A (en) * | 2021-10-26 | 2021-12-31 | 桐城市儒和建材有限公司 | All-round gum |
| CN116003022A (en) * | 2022-12-07 | 2023-04-25 | 杨峰 | Cement gel film-forming coated sea sand additive, preparation and application thereof |
-
2015
- 2015-07-18 CN CN201510421719.7A patent/CN106348635A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383412A (en) * | 2018-01-23 | 2018-08-10 | 云南森博混凝土外加剂有限公司 | Pulvis polycarboxylic acid concrete water-reducing agent |
| CN113861769A (en) * | 2021-10-26 | 2021-12-31 | 桐城市儒和建材有限公司 | All-round gum |
| CN116003022A (en) * | 2022-12-07 | 2023-04-25 | 杨峰 | Cement gel film-forming coated sea sand additive, preparation and application thereof |
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Application publication date: 20170125 |