Supercharge Your Innovation With Domain-Expert AI Agents!

Anionic SBS emulsion, preparation method and application thereof

An anionic and emulsion technology, applied in coatings, asphalt coatings, etc., can solve the problems of complex preparation process, high equipment requirements, and high production costs, and achieve the effect of simple preparation process, low equipment requirements, and improved waterproof performance

Inactive Publication Date: 2016-02-24
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
View PDF10 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The other is to dissolve SBS in an organic solvent and then mix it with asphalt. Due to the addition of a large amount of organic solvent, it will cause harm to the environment and increase the cost.
For example, the prior art CN201210067021.6 discloses a method for preparing a methacrylic acid-modified SBS block copolymer emulsion, using an amphiphilic macromolecular reversible addition fragmentation transfer reagent, which is used as a chain transfer reagent and as a reactive emulsifier. Emulsion polymerization reaction directly obtains stable poly((meth)acrylic acid-b-styrene-b-butadiene-b styrene) block copolymer latex, and this invention directly adopts emulsion polymerization method to prepare SBS latex, needs In the process of emulsion polymerization, polar groups are introduced into the chain end of SBS, the preparation process is more complicated, and the production cost is higher
CN200310121675.3 discloses a preparation method of SBS aqueous emulsion, using polarized SBS (SBSM) grafted with methacrylic ester as raw material, first dissolving SBSM in an organic solvent, then pressing it into a stirring tank, and starting Start the high-speed shearing machine, stir at a speed of 3000-5000r / m, and slowly add water dissolved in emulsifier, defoamer, and electrolyte. When a small amount of water is slowly added to the solution, W / O will be generated at the beginning type emulsion, increase the amount of water to convert it into an O / W type emulsion; then increase the rotation speed to 8000-10000r / m and stir for 30 minutes to break the particles below 1 micron; remove the solvent under heating and decompression to obtain a stable SBS The water emulsion of the invention, the preparation of SBS water emulsion equipment requires high requirements, and the preparation process of polarized SBS (SBSM) is complicated, the cost is high, and what is obtained is polarized SBS emulsion
CN102936345A discloses a kind of preparation method of SBS latex, mix emulsifier, solvent and SBS, add water slowly in the mixture, leave 30min to add stabilizer and flocculant, then obtain SBS latex by vacuum distillation, this invention directly uses Unmodified SBS is used as a raw material, and the SBS emulsion is prepared by dissolving in an organic solvent, emulsifying, and finally removing the solvent, which has poor stability.
However, SBS emulsions cannot be obtained by emulsion polymerization

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anionic SBS emulsion, preparation method and application thereof
  • Anionic SBS emulsion, preparation method and application thereof
  • Anionic SBS emulsion, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the preparation of anionic SBS emulsion

[0024] (1) Preparation of SBS emulsion: dissolving styrene-butadiene-styrene block copolymer in n-hexane under stirring, and configuring it into a polymer solution with a concentration of 15wt%;

[0025] (2) Preparation of soap solution: configuration containing concentration is 4wt% rosin potassium, 0.5wt% carboxymethylcellulose sodium and 0.50wt% Na 2 SO 4 soap solution, adjust the PH value between 9 and 10;

[0026] (3) Preparation of anionic SBS emulsion: SBS emulsion and soap solution are mixed according to the weight ratio of 100:30, the SBS emulsion is added to the soap solution under stirring, dispersed and emulsified at room temperature; heated to 30-40°C, vacuum Adjust to 5-10kPa, distill under reduced pressure for 2h, and concentrate to obtain anionic SBS emulsion.

Embodiment 2

[0027] Embodiment 2: the preparation of anionic SBS emulsion

[0028] (1) Preparation of SBS emulsion: Dissolve styrene-butadiene-styrene block copolymer in a mixed solvent of n-hexane and cyclohexane under ultrasonic conditions, and configure a polymer solution with a concentration of 17wt%;

[0029](2) Preparation of soap solution: configuration containing concentration is 4wt% rosin potassium, 2wt% potassium oleate, 0.5wt% carboxymethylcellulose sodium and 0.50wt% Na 2 SO 4 soap solution, adjust the pH value between 10 and 11;

[0030] (3) Preparation of anionic SBS emulsion: SBS emulsion and soap solution are mixed according to the weight ratio of 100:20. Add soap solution to SBS emulsion under stirring, disperse and emulsify at room temperature; heat SBS emulsion to 30-40°C , adjusted the vacuum degree to 5-10kPa, distilled under reduced pressure for 2h, and concentrated to obtain SBS emulsion.

Embodiment 3

[0031] Embodiment 3: the preparation of anionic SBS emulsion

[0032] (1) Preparation of SBS emulsion: dissolving styrene-butadiene-styrene block copolymer in n-hexane under stirring, and configuring it into a polymer solution with a concentration of 20wt%;

[0033] (2) Preparation of soap solution: configuration containing concentration is 6wt% rosin potassium, 0.5wt% hydroxymethyl cellulose and 0.50wt% Na 2 SO 4 soap solution, adjust the pH value between 10 and 11;

[0034] (3) Preparation of anionic SBS emulsion: SBS emulsion and soap solution are proportioned according to a weight ratio of 100:20, the SBS emulsion is added to the soap solution under stirring, and dispersed and emulsified at room temperature;

[0035] (4) Heat the SBS emulsion to 30-40° C., adjust the vacuum degree to 5-10 kPa, distill under reduced pressure for 2 hours, and concentrate to obtain the SBS emulsion.

[0036] See Table 1 for the performance test results of the SBS emulsion prepared in Examp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Heat resistanceaaaaaaaaaa
Low temperatureaaaaaaaaaa
Login to View More

Abstract

The invention provides an anionic SBS emulsion. The anionic SBS emulsion comprises the following raw materials in parts by weight: 25-60 parts of SBS, 2-10 parts of an anionic composite emulsifier, 0.04-4 parts of a thickening agent, 0.4-4 parts of a stabilizing agent and 26-70 parts of water, wherein the solid content is 30-60 wt%. The invention also comprises a preparation method and an application of the anionic SBS emulsion. The preparation method of the anionic SBS emulsion has the advantages that process is simple, method can be carried out under low temperature, energy consumption is less, and equipment requirement is low; an organic solvent used in the prepared SBS emulsion can be recovered for usage, environment pollution can be avoided, and the method for preparing the SBS emulsion has environmental protection characteristic; and the anionic SBS emulsion can effectively improve waterproof performance of asphalt, and a prepared anionic SBS-modified emulsified asphalt waterproof paint has the advantages of good low temperature flexibility and heat resistance.

Description

technical field [0001] The invention relates to a polymer modifier and its preparation method and application, in particular to an anionic SBS emulsion, its preparation method and its application in the preparation of modified emulsified asphalt waterproof paint. Background technique [0002] Polymer-modified asphalt emulsion has the advantages of both modified asphalt and emulsified asphalt. It has excellent performance, is environmentally friendly and non-toxic, and is widely used in road construction, maintenance projects and waterproofing projects. Divided from the preparation method, it can be divided into emulsified modified asphalt prepared by emulsifying asphalt after being mixed with polymers; modified emulsified asphalt prepared by adding polymer modifiers during the production process of emulsified asphalt or in the finished product. asphalt. For emulsified modified asphalt, it is suitable for a wide range of polymer modifiers, including styrene-butadiene rubber ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08J3/11C08L53/02C09D195/00
Inventor 郭子斌李文志于猛吴志强段文锋
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com