CN103952087A - Water-resistant latex - Google Patents
Water-resistant latex Download PDFInfo
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- CN103952087A CN103952087A CN201410212171.0A CN201410212171A CN103952087A CN 103952087 A CN103952087 A CN 103952087A CN 201410212171 A CN201410212171 A CN 201410212171A CN 103952087 A CN103952087 A CN 103952087A
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Abstract
The invention discloses a water-resistant latex which comprises the following components in parts by weight: 2-5 parts of chitosan, 5-8 parts of acrylic acid, 8-10 parts of polyvinyl alcohol, 20-50 parts of corn starch, 5-10 parts of light calcium carbonate, 1-2 parts of nano mold preventive, 1-3 parts of formaldehyde, 4-6 parts of methyl cellulose, 0.1-0.2 part of sodium pentachlorophenate and 40-50 parts of water. The water-resistant latex has the advantages of high binding strength, favorable water resistance, favorable low temperature resistance, simple production facility, simple technique, short production cycle, short drying time, no discharge of harmful gas in production, cheap and accessible raw materials and low cost.
Description
Technical field
The present invention relates to the tackiness agent that a kind of timber and material of construction are used, relate to particularly a kind of water resistant latex.
Background technology
Now widely used timber and material of construction tackiness agent have two large classes: a class is that cost is lower, but physicochemical property is poor, product viscosity is below 3000CP, just sticky for up to 10 hours to 48 hours, below the strong 3.9MPa of compression shear, the key technical indexes national grade ii standard does not reach yet.Another kind of is that cost is high, and quality is relatively better, and modal is polyvinyl acetate.Because this kind of white glue with vinyl mainly utilizes vinyl acetate between to for plastic as monomer, with polyvinyl alcohol, make protective colloid, by certain condition polymerization, make, salient features is improved, so quality increases.But the raw material such as Vinyl Acetate Monomer, polyvinyl alcohol is more in short supply, price is constantly surging, causes high cost, and general applying unit is difficult to accept.And complex manufacturing, facility investment is large, and the production cycle is long, and water-repellancy and low temperature frost resistance are poor, make troubles to the application of product.
Summary of the invention
Goal of the invention: be to solve the technical problem existing in prior art, the present invention proposes a kind of water resistant latex, has that cohesive strength is high, good waterproof performance and a feature such as low-temperature type is good.
Technology contents: for realizing above-mentioned technical purpose, the present invention proposes a kind of water resistant latex, comprises the component of following parts by weight: 40～50 parts, 2～5 parts of chitosan, 5～8 parts, vinylformic acid, 8～10 parts of polyvinyl alcohol, 20～50 parts of W-Gums, 5～10 parts of light calcium carbonates, 1～2 part of nanometer mildew proofing agent, 1～3 part, formaldehyde, 4～6 parts of methylcellulose gum, 0.1～0.2 part of sodium pentachlorophenate and water.
Preferably, described water resistant latex comprises the component of following parts by weight: 45 parts, 3 parts of chitosan, 6 parts, vinylformic acid, 9 parts of polyvinyl alcohol, 30 parts of W-Gums, 8 parts of light calcium carbonates, 1.5 parts of nanometer mildew proofing agents, 2 parts, formaldehyde, 5 parts of methylcellulose gum, 0.15 part of sodium pentachlorophenate and water.
The invention allows for above-mentioned water resistant latex preparation method, comprise the steps:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, stir lower heating until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir and obtain solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 20～30 minutes, obtain.
Wherein, in step (1), stirring velocity is 800～1000r/min, and Heating temperature is 40～50 ℃.
Stirring velocity in step (2) is 1000～1200r/mm.
Stirring velocity in step (3) is 1500～1800r/mm, and Heating temperature is 70～80 ℃.
Beneficial effect: compared with prior art, water resistant latex cohesive strength of the present invention is high, good waterproof performance and low-temperature type good, and production unit is simple, technique is simple and easy, with short production cycle, and time of drying is short, in production, without the discharge of obnoxious flavour, starting material are cheap and easy to get, and cost is low.
Embodiment
Embodiment 1
A water resistant latex, comprises the component of following parts by weight: 45 parts, 3 parts of chitosan, 6 parts, vinylformic acid, 9 parts of polyvinyl alcohol, 30 parts of W-Gums, 8 parts of light calcium carbonates, 1.5 parts of nanometer mildew proofing agents, 2 parts, formaldehyde, 5 parts of methylcellulose gum, 0.15 part of sodium pentachlorophenate and water.
Its preparation method is as follows:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, under 900r/min stirs, be heated to 45 ℃ until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir, stirring velocity is 1100r/min, obtains solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, under 1600r/mm, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 25 minutes, obtain.
Embodiment 2
A water resistant latex, comprises the component of following parts by weight: 50 parts, 2 parts of chitosan, 8 parts, vinylformic acid, 8 parts of polyvinyl alcohol, 50 parts of W-Gums, 5 parts of light calcium carbonates, 2 parts of nanometer mildew proofing agents, 1 part, formaldehyde, 6 parts of methylcellulose gum, 0.1 part of sodium pentachlorophenate and water.
Its preparation method is as follows:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, under 800r/min stirs, be heated to 50 ℃ until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir, stirring velocity is 1200r/min, obtains solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, under 1500r/mm, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 30 minutes, obtain.
Embodiment 3
A water resistant latex, comprises the component of following parts by weight: 46 parts, 4 parts of chitosan, 7 parts, vinylformic acid, 9 parts of polyvinyl alcohol, 40 parts of W-Gums, 8 parts of light calcium carbonates, 1.6 parts of nanometer mildew proofing agents, 1.8 parts, formaldehyde, 5 parts of methylcellulose gum, 0.18 part of sodium pentachlorophenate and water.
Its preparation method is as follows:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, under 900r/min stirs, be heated to 45 ℃ until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir, stirring velocity is 1000r/min, obtains solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, under 1800r/min, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 25 minutes, obtain.
Embodiment 4
A water resistant latex, comprises the component of following parts by weight: 40 parts, 5 parts of chitosan, 5 parts, vinylformic acid, 10 parts of polyvinyl alcohol, 20 parts of W-Gums, 10 parts of light calcium carbonates, 1 part of nanometer mildew proofing agent, 3 parts, formaldehyde, 4 parts of methylcellulose gum, 0.2 part of sodium pentachlorophenate and water.
Its preparation method is as follows:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, under 1000r/min stirs, be heated to 40 ℃ until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir, stirring velocity is 1200r/min, obtains solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, under 1800r/min, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 30 minutes, obtain.
Embodiment 5
A water resistant latex, comprises the component of following parts by weight: 48 parts, 3 parts of chitosan, 6 parts, vinylformic acid, 8 parts of polyvinyl alcohol, 45 parts of W-Gums, 7 parts of light calcium carbonates, 1.6 parts of nanometer mildew proofing agents, 2.5 parts, formaldehyde, 5 parts of methylcellulose gum, 0.18 part of sodium pentachlorophenate and water.
Its preparation method is as follows:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, under 1000r/min stirs, be heated to 50 ℃ until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir, stirring velocity is 1200r/min, obtains solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, under 1600r/min, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 25 minutes, obtain.
Claims (6)
1. a water resistant latex, it is characterized in that, comprise the component of following parts by weight: 40～50 parts, 2～5 parts of chitosan, 5～8 parts, vinylformic acid, 8～10 parts of polyvinyl alcohol, 20～50 parts of W-Gums, 5～10 parts of light calcium carbonates, 1～2 part of nanometer mildew proofing agent, 1～3 part, formaldehyde, 4～6 parts of methylcellulose gum, 0.1～0.2 part of sodium pentachlorophenate and water.
2. water resistant latex according to claim 1, it is characterized in that, comprise the component of following parts by weight: 45 parts, 3 parts of chitosan, 6 parts, vinylformic acid, 9 parts of polyvinyl alcohol, 30 parts of W-Gums, 8 parts of light calcium carbonates, 1.5 parts of nanometer mildew proofing agents, 2 parts, formaldehyde, 5 parts of methylcellulose gum, 0.15 part of sodium pentachlorophenate and water.
3. water resistant latex preparation method claimed in claim 1, is characterized in that, comprises the steps:
(1) take the chitosan of formula ratio, add the vinylformic acid of formula ratio and the water of 1/3 formula ratio, stir lower heating until entirely molten, obtain solution A;
(2) take the W-Gum of formula ratio, add the water of 1/3 formula ratio, fully stir and obtain solution B;
(3) add the water of polyvinyl alcohol, methylcellulose gum and 1/3 formula ratio of formula ratio, be stirred to entirely molten, the formaldehyde, light calcium carbonate, nanometer mildew proofing agent and the sodium pentachlorophenate that add formula ratio, stir, heating, then add the solution A and the solution B that in step (1) and step (2), obtain, continue to stir 20～30 minutes, obtain.
4. method according to claim 3, is characterized in that, in step (1), stirring velocity is 800～1000r/min, and Heating temperature is 40～50 ℃.
5. method according to claim 3, is characterized in that, the stirring velocity in step (2) is 1000～1200r/min.
6. method according to claim 3, is characterized in that, the stirring velocity in step (3) is 1500～1800r/min, and Heating temperature is 70～80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212171.0A CN103952087A (en) | 2014-05-19 | 2014-05-19 | Water-resistant latex |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212171.0A CN103952087A (en) | 2014-05-19 | 2014-05-19 | Water-resistant latex |
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| CN103952087A true CN103952087A (en) | 2014-07-30 |
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| CN201410212171.0A Pending CN103952087A (en) | 2014-05-19 | 2014-05-19 | Water-resistant latex |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170025A (en) * | 1996-07-05 | 1998-01-14 | 李诗录 | Water resistant strengthened latex |
| CN101475790A (en) * | 2008-01-04 | 2009-07-08 | 杨光 | Novel timber adhesive and preparation thereof |
| CN101659842A (en) * | 2008-08-28 | 2010-03-03 | 北京玉佳明三态离子科学研究院有限公司 | Formaldehyde-free novel strong waterproof anti-freezing white latex |
| CN103421446A (en) * | 2012-05-23 | 2013-12-04 | 天津市大港巨龙造纸厂 | Corrugated board adhesive glue and preparation method therefor |
-
2014
- 2014-05-19 CN CN201410212171.0A patent/CN103952087A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170025A (en) * | 1996-07-05 | 1998-01-14 | 李诗录 | Water resistant strengthened latex |
| CN101475790A (en) * | 2008-01-04 | 2009-07-08 | 杨光 | Novel timber adhesive and preparation thereof |
| CN101659842A (en) * | 2008-08-28 | 2010-03-03 | 北京玉佳明三态离子科学研究院有限公司 | Formaldehyde-free novel strong waterproof anti-freezing white latex |
| CN103421446A (en) * | 2012-05-23 | 2013-12-04 | 天津市大港巨龙造纸厂 | Corrugated board adhesive glue and preparation method therefor |
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Application publication date: 20140730 |