CN1727432A - Waterproofing agent of organosilicon in paste form, and manufacturing method - Google Patents
Waterproofing agent of organosilicon in paste form, and manufacturing method Download PDFInfo
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- CN1727432A CN1727432A CN 200510034381 CN200510034381A CN1727432A CN 1727432 A CN1727432 A CN 1727432A CN 200510034381 CN200510034381 CN 200510034381 CN 200510034381 A CN200510034381 A CN 200510034381A CN 1727432 A CN1727432 A CN 1727432A
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- organosilicon
- agent
- paste form
- emulsion
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Abstract
A water-proofing paste is prepared through proportionally mixing deionized water, emulsifier and neutralizer, adding organosilicon oligomer, dispersing to become preemulsion, adding catalyst, and polymerizing reaction at 0-40 deg.C for 15-22 hr. Its advantages are high adhesion and water-proofing and reinforcing effect, and no poison and by-effect.
Description
Technical field
The present invention relates to waterproofing agent of organosilicon, specifically is a kind of waterproofing agent of organosilicon in paste form and manufacture method thereof.
Background technology
Existing waterproofing agent of organosilicon generally is the liquid with low molecule modulus, use separately as coating, carry out waterproof construction in the base-material top layers such as the ditch seam in construction, interlayer, roof, crackle, underground works, can not sneak in the material of construction and construct, more can not fill up enhancing, form the above rete of 1mm.And on film, continue construction and do protective layer also very difficult; Secondly the emulsion-type waterproofing agent of organosilicon will expect that molecular weight is high, band viscosity, and semi-fluid is moving, and the waterproof product of paste type also is very difficult.
Summary of the invention
The objective of the invention is to the defective that the position prior art exists, a kind of polymer modulus (10 that has is provided
6Mm
2More than/the s), and nontoxic, have no side effect, convenient construction reaches the preparation method of the waterproofing agent of organosilicon in paste form of application level.
The present invention also aims to provide the waterproofing agent of organosilicon in paste form of described method preparation
The present invention is the lower molecular weight (100mm that will be easy to get
2/ s is following) organosilicon oligopolymer and emulsifying agent, prepare by two-step reaction mode (mechanical dispersion and chemosynthesis).
The preparation method of waterproofing agent of organosilicon in paste form of the present invention may further comprise the steps:
(1): 0.01-10 mixes deionized water, emulsifying agent, neutralizing agent to be pressed 1-10: 0.01-2, and by the organosilicon oligopolymer: the ratio of emulsifying agent quality is 100: 8～20 adding organosilicon oligopolymer, and dispersion treatment is made pre-emulsion then;
Described dispersion treatment is meant that utilization high shear force dispersion and emulsion device makes the material homogeneous, described organosilicon oligopolymer is meant low-molecular-weight polydimethylsiloxane with active reaction end group, described emulsifying agent is meant positively charged ion or anion surfactant for example Witco 1298 Soft Acid or Sodium dodecylbenzene sulfonate, and described neutralizing agent is meant inorganic base for example sodium hydroxide or potassium hydroxide.
(2) add catalyzer in the pre-emulsion that step (1) obtains, 0 ℃～40 ℃ following polyreactions, the reaction times is 15～22 hours then; Described catalyzer is meant inorganic or organic acid for example sulfuric acid or oxalic acid, and consumption accounts for pre-emulsion 0.2% quality.
The contriver is through long-felt and test, and explore organosilicon oligopolymer in the step (1): ratio the best of emulsifying agent quality is 100: 15;
Reaction finishes in the step (2), telomerizes medium with water and amine as balance.
Phase viscosity is 10 in the waterproofing agent of organosilicon in paste form that obtains
6～4 * 10
6Mm
2/ s.With 1.8 * 10
6～2.5 * 10
6Mm
2/ s is good.Owing to vulcanization crosslinking, its molecular weight further condensation cross-linking becomes the high-molecular weight solid film in construction process.By analysis, the link units of this paste is: HO (Me
2SiO)
nH, n=1000-10000 in the formula.
The present invention compared with prior art has following advantage:
(1) production stage is simple, and production capacity is big, and technological operation elasticity is big;
(2) product good water-proof effect has excellent weathering resistance;
(3) product belongs to the environment-friendly type water-resisting agent, produces no waste discharge in the use, helps operator's health.
Embodiment
Embodiment 1
(1) deionized water, emulsifying agent, neutralizing agent were mixed by 1: 2: 0.01, by the organosilicon oligopolymer: the ratio of emulsifying agent quality is 100: 8 adding organosilicon oligopolymer, and dispersion treatment is made pre-emulsion then;
Described organosilicon oligopolymer specifically is meant kinematic viscosity (25 ℃)=75mm
2/ s, described emulsifying agent is a Witco 1298 Soft Acid, described neutralizing agent is a sodium hydroxide.
(2) add catalyzer in the pre-emulsion that step (1) obtains, then 0 ℃ of following polyreaction, the reaction times is 22 hours; Described catalyzer is a sulfuric acid, and consumption accounts for pre-emulsion 0.2% quality.
Reaction finishes in the step (2), telomerizes medium with water and amine as balance.
Phase viscosity is 10 in the waterproofing agent of organosilicon in paste form that obtains
6Mm
2/ s.Owing to vulcanization crosslinking, its molecular weight further condensation cross-linking becomes the high-molecular weight solid film in construction process.By analysis, the link units of this paste is
HO (Me
2SiO)
nN=1000 in the H formula
Embodiment 2
(1) deionized water, emulsifying agent, neutralizing agent were mixed by 10: 0.01: 10, by the organosilicon oligopolymer: the ratio of emulsifying agent quality is 100: 20 adding organosilicon oligopolymer, and dispersion treatment is made pre-emulsion then;
Described organosilicon oligopolymer specifically is meant kinematic viscosity (25 ℃)=100mm
2The hydroxyl-terminated injecting two methyl siloxane of/s, described emulsifying agent is a Witco 1298 Soft Acid, described neutralizing agent is a potassium hydroxide.
(2) add catalyzer in the pre-emulsion that step (1) obtains, then 40 ℃ of following polyreactions, the reaction times is 22 hours; Described catalyzer is a sulfuric acid, and consumption accounts for pre-emulsion 0.2% quality.
Reaction finishes in the step (2), telomerizes medium with water and amine as balance.
Phase viscosity is 4 * 10 in the waterproofing agent of organosilicon in paste form that obtains
6Mm
2/ s.Owing to vulcanization crosslinking, its molecular weight further condensation cross-linking becomes the high-molecular weight solid film in construction process.By analysis, the link units of this paste is
HO (Me
2SiO)
nN=10000 in the H formula
Embodiment 3
(1) deionized water, emulsifying agent, neutralizing agent were mixed by 5: 1: 5, by the organosilicon oligopolymer: the ratio of emulsifying agent quality is 100: 15 adding organosilicon oligopolymer, and dispersion treatment is made pre-emulsion then;
Described organosilicon oligopolymer specifically is meant kinematic viscosity (25 ℃)=30mm
2The hydroxyl-terminated injecting two methyl siloxane of/s, described emulsifying agent is a Witco 1298 Soft Acid, described neutralizing agent is a sodium hydroxide.
(2) add catalyzer in the pre-emulsion that step (1) obtains, then 25 ℃ of following polyreactions, the reaction times is 18 hours; Described catalyzer is a sulfuric acid, and consumption accounts for pre-emulsion 0.2% quality.
Reaction finishes in the step (2), telomerizes medium with water and amine as balance.
Phase viscosity is 1.8 * 10 in the waterproofing agent of organosilicon in paste form that obtains
6Mm
2/ s, owing to vulcanization crosslinking, its molecular weight further condensation cross-linking becomes the high-molecular weight solid film in construction process.By analysis, the link units of this paste is
HO (Me
2SiO)
nN=5000 in the H formula
Embodiment 4
(1) deionized water, emulsifying agent, neutralizing agent were mixed by 3: 0.7: 0.07, by the organosilicon oligopolymer: the ratio of emulsifying agent quality is 100: 15 adding organosilicon oligopolymer, and dispersion treatment is made pre-emulsion then;
Described organosilicon oligopolymer specifically is meant kinematic viscosity (25 ℃)=50mm
2The hydroxyl-terminated injecting two methyl siloxane of/s, described emulsifying agent is a Sodium dodecylbenzene sulfonate, described neutralizing agent is a sodium hydroxide.
(2) add catalyzer in the pre-emulsion that step (1) obtains, then 5 ℃ of following polyreactions, the reaction times is 20 hours; Described catalyzer is a hydrochloric acid, and consumption accounts for pre-emulsion 0.2% quality.
Reaction finishes in the step (2), telomerizes medium with water and amine as balance.
Phase viscosity is 2.5 * 10 in the waterproofing agent of organosilicon in paste form that obtains
6Mm
2/ s.Owing to vulcanization crosslinking, its molecular weight further condensation cross-linking becomes the high-molecular weight solid film in construction process.By analysis, the link units of this paste is
HO (Me
2SiO)
nN=7000 in the H formula.
Claims (6)
1, a kind of preparation method of waterproofing agent of organosilicon in paste form is characterized in that may further comprise the steps:
(1): 0.01-10 mixes deionized water, emulsifying agent, neutralizing agent to be pressed 1-10: 0.01-2, and by the organosilicon oligopolymer: the ratio of emulsifying agent quality is 100: 8～20 adding organosilicon oligopolymer, and dispersion treatment is made pre-emulsion then;
Described dispersion treatment is meant that utilization high shear force dispersion and emulsion device makes the material homogeneous, described organosilicon oligopolymer is meant low-molecular-weight polydimethylsiloxane with active reaction end group, described emulsifying agent is meant positively charged ion or anion surfactant, and described neutralizing agent is meant inorganic base;
(2) add catalyzer in the pre-emulsion that step (1) obtains, 0 ℃～40 ℃ following polyreactions, the reaction times is 15～22 hours then; Described catalyzer is meant inorganic or organic acid, and consumption accounts for pre-emulsion 0.2% quality.
2, the preparation method of a kind of waterproofing agent of organosilicon in paste form according to claim 1, it is characterized in that organosilicon oligopolymer in the step (1): the ratio of emulsifying agent quality is 100: 15.
3, the preparation method of a kind of waterproofing agent of organosilicon in paste form according to claim 1 and 2 is characterized in that described emulsifying agent is Witco 1298 Soft Acid or Sodium dodecylbenzene sulfonate.
4, the preparation method of a kind of waterproofing agent of organosilicon in paste form according to claim 1 and 2 is characterized in that described neutralizing agent is sodium hydroxide or potassium hydroxide.
5, the preparation method of a kind of waterproofing agent of organosilicon in paste form according to claim 1 and 2 is characterized in that described catalyzer is sulfuric acid or oxalic acid.
6, the waterproofing agent of organosilicon in paste form of described method preparation one of among the claim 1-5 is characterized in that phase viscosity is 10 in it
6～4 * 10
6Mm
2/ s, its link units is: HO (Me
2SiO)
nH, n=1000-10000 in the formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034381 CN1727432A (en) | 2005-04-28 | 2005-04-28 | Waterproofing agent of organosilicon in paste form, and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034381 CN1727432A (en) | 2005-04-28 | 2005-04-28 | Waterproofing agent of organosilicon in paste form, and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1727432A true CN1727432A (en) | 2006-02-01 |
Family
ID=35926959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510034381 Pending CN1727432A (en) | 2005-04-28 | 2005-04-28 | Waterproofing agent of organosilicon in paste form, and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1727432A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219551A (en) * | 2011-04-27 | 2011-10-19 | 河南省交通科学技术研究院有限公司 | Organic silicon waterproof agent with respiratory function and preparation method thereof |
| CN105236818A (en) * | 2015-09-08 | 2016-01-13 | 唐山滦硕无机硅化物有限公司 | Organic silicon water-proof powder, preparation method and application thereof |
-
2005
- 2005-04-28 CN CN 200510034381 patent/CN1727432A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219551A (en) * | 2011-04-27 | 2011-10-19 | 河南省交通科学技术研究院有限公司 | Organic silicon waterproof agent with respiratory function and preparation method thereof |
| CN102219551B (en) * | 2011-04-27 | 2012-10-03 | 河南省交通科学技术研究院有限公司 | Organic silicon waterproof agent with respiratory function and preparation method thereof |
| CN105236818A (en) * | 2015-09-08 | 2016-01-13 | 唐山滦硕无机硅化物有限公司 | Organic silicon water-proof powder, preparation method and application thereof |
| CN105236818B (en) * | 2015-09-08 | 2017-07-28 | 唐山滦硕无机硅化物有限公司 | Organic silicon water-proofing powder |
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