CN111732859A - Low-viscosity interface agent and anti-water-diversion detection method - Google Patents

Low-viscosity interface agent and anti-water-diversion detection method Download PDF

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Publication number
CN111732859A
CN111732859A CN202010665997.8A CN202010665997A CN111732859A CN 111732859 A CN111732859 A CN 111732859A CN 202010665997 A CN202010665997 A CN 202010665997A CN 111732859 A CN111732859 A CN 111732859A
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Prior art keywords
agent
interface agent
viscosity
measuring cylinder
test sample
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CN202010665997.8A
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Chinese (zh)
Inventor
何曙光
董峰亮
方晓华
马文家
琚诚兰
韩绍哲
王超
宋丹
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Sika Shanghai Management Co Ltd
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Sika Shanghai Management Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
    • C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C09D131/04—Homopolymers or copolymers of vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
    • C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C08L31/04—Homopolymers or copolymers of vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/43—Thickening agents
    • C09D7/44—Combinations of two or more thickening agents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N13/04—Investigating osmotic effects
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N2013/003—Diffusion; diffusivity between liquids

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Wood Science & Technology (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a low-viscosity interface agent and an anti-moisture detection method, and belongs to the technical field of interface agents. The low-viscosity interfacial agent comprises the following components in percentage by weight: water: 70-90% of defoaming agent: 0.1-0.4%, bactericide: 0.1-0.3%, thickening agent: 0.1-0.5%, emulsion: 5-30%; the water-separation resistance detection method of the low-viscosity interface agent comprises the following steps: a measuring cylinder of 100ml or 200ml is adopted,adding 100g of interface agent test sample into a measuring cylinder, and recording the volume value V of the current test sample1. The invention adopts the VAE emulsion of the nonionic emulsifier to compound a special thickening system, thereby having good storage stability, adopts the special thickening agent to ensure that the viscosity of the interface agent is low, realizes good permeability and construction operation performance, simultaneously provides an accelerated moisture resistance test method capable of clearly controlling indexes, is simple and easy to operate, and has great positive effect on product quality control and development of similar products.

Description

Low-viscosity interface agent and anti-water-diversion detection method
Technical Field
The invention relates to a low-viscosity interface agent and an anti-moisture detection method, and belongs to the technical field of interface agents.
Background
At present, in interior decoration, a white or colored interface reinforcing agent is selected before plastering, tiling and putty plastering, and the main functions are as follows: firstly, coloring and secondly, interface permeation increases and reinforces, and the interface agent mainly implements JC/T907-2017 standard and is mainly divided into three types: one is VAE + PVA system with viscosity in the range of 100-300cps, one is SA no-thickening system with viscosity in the range of 0-100 cps, and one is SA + MC high viscosity system, which may have problems: the method is characterized in that firstly, the contradiction between the construction convenience and the permeability is solved, and secondly, a quantitative test method of the system stability is adopted, for example, a VAE + PVA system: poor environmental protection, complex production process, poor permeability, no thickening system of acrylic emulsion: during construction, a high-viscosity system with flowability, acrylic emulsion, cellulose ether and other thickeners exists: the permeability is poor, the thickening of the acrylic emulsion by adopting the thickening agent is difficult to realize within the range of 200-600cps, even if the acrylic emulsion is thickened, the problems of water diversion and the like can occur, so that the storage stability is poor, which is also a reason why the acrylic interface agent in the market is either a high-viscosity system or not thickened, meanwhile, the stability of the interface agent system in the prior art adopts a conventional observation method, namely, the time is long, the quantity of an observed sample is large, and a quantitative evaluation index of water diversion resistance is not provided, so that an environment-friendly interface reinforcing agent with low viscosity is provided, and a quantitative method for testing the storage stability of the interface agent system is provided.
Disclosure of Invention
The present invention is directed to a low viscosity interface agent and a method for detecting moisture resistance, which solves the above problems of the prior art.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a low-viscosity interface agent comprises the following components in percentage by weight:
water: 70 to 90 percent
Defoaming agent: 0.1 to 0.4 percent
And (3) bactericide: 0.1 to 0.3 percent
Thickening agent: 0.1 to 0.5 percent
Emulsion: 5-30%;
the thickening agent comprises the following components in percentage by weight: hydroxyethyl cellulose ether: 30-60% of xanthan gum: 40-70%.
As a preferred example, the defoaming agent is of the silicone type.
As a preferred example, the active ingredient of the bactericide is an isothiazolinone compound.
As a preferable example, the viscosity of the xanthan gum is 10000 mPa.S to 40000 mPa.S.
As a preferred example, the emulsion is a non-ionic emulsifier and the solids content is 55% VAE emulsion.
The water-separation resistance detection method of the low-viscosity interface agent comprises the following steps: adopting a measuring cylinder of 100ml or 200ml, adding 100g of interface agent test sample into the measuring cylinder, and recording the volume value V of the current test sample1Sealing the opening of the measuring cylinder by using an aluminum foil and a rubber band, placing the measuring cylinder in an oven, storing the measuring cylinder at the temperature of 50 ℃ for one month, observing a water separation layer on the upper layer of the test sample, and reading a volume value V of the water separation layer2Recording the volume value V of the water separation layer2Comparing the volume value V of the test sample before the test sample is put into the oven1And calculating the percentage.
The invention has the beneficial effects that: the invention adopts the VAE emulsion of the nonionic emulsifier to compound a special thickening system, thereby having good storage stability, adopts the special thickening agent to ensure that the viscosity of the interface agent is low, realizes good permeability and construction operation performance, simultaneously provides an accelerated moisture resistance test method capable of clearly controlling indexes, is simple and easy to operate, and has great positive effect on product quality control and development of similar products.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the embodiment.
A low-viscosity interface agent is prepared by preparing a plurality of embodiments according to formula proportions, and the components of the embodiments are shown in the specification
Table 1:
example 1 Example 2 Example 3 Example 4
VAE emulsions 10％ 15％ 20％ 25％
Defoaming agent 0.20％ 0.20％ 0.20％ 0.20％
Bactericide 0.25％ 0.20％ 0.30％ 0.10％
Water (W) 89.15％ 84.25％ 79.2％ 74.5％
Thickening agent 0.4％ 0.35％ 0.3％ 0.2％
TABLE 1
The thickeners in the four examples above are all hydroxyethyl cellulose ethers: 50 percent of xanthan gum and 50 percent of defoaming agent are organic silicon; the active component of the bactericide is an isothiazolinone compound; the viscosity of the xanthan gum is 25000mPa & S; the emulsion is a nonionic emulsifier and the solids content is 55% VAE emulsion.
The water-separation resistance detection method of the low-viscosity interface agent comprises the following steps: adopting a measuring cylinder of 100ml, adding a testing sample of 100g of the interface agent into the measuring cylinder, and recording the volume value V of the current testing sample1Sealing the opening of the measuring cylinder by using an aluminum foil and a rubber band, placing the measuring cylinder in an oven, and storing the measuring cylinder at the temperature of 50 ℃ for one monthObserving the water separating layer on the upper layer of the test sample, and reading the volume value V of the water separating layer2Recording the volume value V of the water separation layer2Comparing the volume value V of the test sample before the test sample is put into the oven1And calculating the percentage to obtain the water diversion rate.
Comparative example
The interface agent of a commercial PVA and VAE emulsion system is selected.
The interfacial agents and comparative examples prepared in the above examples were subjected to various performance tests and water-separation resistance tests, and the test results are shown in table 2:
Figure BDA0002580469370000041
TABLE 2
From table 2, in the four embodiments, the viscosity is 200 to 500cps, the water diversion rate is less than or equal to 4%, the VAE emulsion system is adopted, the viscosity is low, the system stability is good, meanwhile, the non-PVA system is adopted for thickening, the permeability is good, while the PVA and VAE emulsion system sold in the comparative example has low viscosity but unstable system, the water diversion rate reaches 10% in the heat storage test, and the complaint that more water diversion exists in the practical application of the product is consistent; compared with the conventional VAE emulsion system, the special VAE emulsion system adopted in the invention has greatly improved freeze-thaw and alkali-resistant bonding strength.
In conclusion, compared with the product obtained by the prior art, the product obtained by the invention has the following advantages: 1. the non-PVA thickening system is realized, the emulsifier of the emulsion is mainly a non-ionic emulsifier, has good wettability to a base surface, and simultaneously has good dilution stability, and particularly has good system stability within the viscosity range of 200-600; 2. by adopting a composite thickening system, the interface agent has low viscosity, and good permeability and construction operation performance are realized; 3. quantification of the test method for accelerated water diversion test is realized (the measuring cylinder method and the water diversion resistance index are below 4 percent, namely the water diversion rate is less than or equal to 4 percent, and the test is qualified).
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A low viscosity interfacial agent characterized by: the interface agent comprises the following components in percentage by weight:
water: 70 to 90 percent
Defoaming agent: 0.1 to 0.4 percent
And (3) bactericide: 0.1 to 0.3 percent
Thickening agent: 0.1 to 0.5 percent
Emulsion: 5-30%;
the thickening agent comprises the following components in percentage by weight: hydroxyethyl cellulose ether: 30-60% of xanthan gum: 40-70%.
2. A low viscosity interface agent as defined in claim 1, wherein: the defoaming agent is organic silicon.
3. A low viscosity interface agent as defined in claim 1, wherein: the active component of the bactericide is an isothiazolinone compound.
4. A low viscosity interface agent as defined in claim 1, wherein: the viscosity of the xanthan gum is 10000 mPa.S-40000 mPa.S.
5. A low viscosity interface agent as defined in claim 1, wherein: the emulsion is a nonionic emulsifier and contains 55% of VAE emulsion.
6. The resistance to separation of the low viscosity interface agent of claim 1The water detection method is characterized in that: adopting a measuring cylinder of 100ml or 200ml, adding 100g of interface agent test sample into the measuring cylinder, and recording the volume value V of the current test sample1Sealing the opening of the measuring cylinder by using an aluminum foil and a rubber band, placing the measuring cylinder in an oven, storing the measuring cylinder at the temperature of 50 ℃ for one month, observing a water separation layer on the upper layer of the test sample, and reading a volume value V of the water separation layer2Recording the volume value V of the water separation layer2Comparing the volume value V of the test sample before the test sample is put into the oven1And calculating the percentage.
CN202010665997.8A 2020-07-12 2020-07-12 Low-viscosity interface agent and anti-water-diversion detection method Pending CN111732859A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101649149A (en) * 2009-09-17 2010-02-17 江苏尼高科技有限公司 Internal thermal insulation system of thermal insulation board exposed wall and used interface agent and preparation method thereof
CN102995780A (en) * 2012-12-14 2013-03-27 江苏尼高科技有限公司 Glass fibre tissue compound heat-insulating plate and preparation method for same
CN109723191A (en) * 2018-11-21 2019-05-07 温州市东日建筑装饰工程有限公司 A kind of finishing wall finiss coating method and preparation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101649149A (en) * 2009-09-17 2010-02-17 江苏尼高科技有限公司 Internal thermal insulation system of thermal insulation board exposed wall and used interface agent and preparation method thereof
CN102995780A (en) * 2012-12-14 2013-03-27 江苏尼高科技有限公司 Glass fibre tissue compound heat-insulating plate and preparation method for same
CN109723191A (en) * 2018-11-21 2019-05-07 温州市东日建筑装饰工程有限公司 A kind of finishing wall finiss coating method and preparation method

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
刘晓霞等: "驱油用水溶性乳化剂乳化性能的评价", 《应用化工》 *
张伟编: "《建筑预拌砂浆应用指南》", 31 March 2020 *
李学燕主编: "《实用环保型建筑涂料与涂装》", 31 March 2006 *
闫孝伟: "新型湿拌砂浆外加剂的研究", 《四川建材》 *

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