Polybutadiene latex, preparation method thereof and ABS (Acrylonitrile Butadiene Styrene) resin

A technology of polybutadiene latex and butadiene conversion rate, which is applied in the field of polymers, can solve problems such as complex preparation processes, and achieve the effect of improving impact strength

Active Publication Date: 2021-06-25
WANHUA CHEM (SICHUAN) CO LTD +1
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method adopts polybutadiene latex mixed with different particle sizes to prepare ABS resin, the impact resistance of ABS resin is improved by adjusting the rubber particle size distribution, but the large particle size and super large particle size polybutadiene latex need to be prepared separately , the preparation process is more complex

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
  • Polybutadiene latex, preparation method thereof and ABS (Acrylonitrile Butadiene Styrene) resin
  • Polybutadiene latex, preparation method thereof and ABS (Acrylonitrile Butadiene Styrene) resin
  • Polybutadiene latex, preparation method thereof and ABS (Acrylonitrile Butadiene Styrene) resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take respectively 4g of perfluorohexyl ethyl acrylate, 3g of methyl acrylate, 100g of butadiene, 2g of potassium persulfate, 2g of ammonium persulfate, 4g of potassium carbonate, 3g of potassium hydroxide, 1g of sodium naphthalenesulfonic acid formaldehyde condensate, Add 2g of sodium dodecylbenzenesulfonate, 0.5g of n-dodecyl mercaptan, and 196g of water into the reactor and mix them uniformly, and heat up to 85°C for polymerization; chromatographic analysis and calculation show that when the conversion rate of butadiene is 69.6 %, add 4 g of cyclohexyl methacrylate to carry out copolymerization reaction, and obtain polybutadiene latex when the conversion rate of butadiene is 98.3%.

[0038] The differences between Examples 2-5 and Example 1 are shown in Table 1, and the rest of the raw materials, experimental conditions and reaction steps are the same as in Example 1.

[0039] The difference between table 1 embodiment 2-5 and embodiment 1

[0040]

[0041]

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
solubility (mass)aaaaaaaaaa
grafting efficiencyaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method of polybutadiene latex, which comprises the following steps: adding a fluorine-containing monomer, a polar monomer with solubility of 50-80g / L (solubility in water at 20 DEG C), butadiene, an initiator, an electrolyte, an emulsifier, a chain transfer agent and water into a reactor, heating to 55-90 DEG C, and carrying out polymerization reaction; and when the conversion rate of butadiene is greater than or equal to 60% and less than or equal to 70%, adding a (methyl) acrylate monomer with a non-polar ring structure in a side chain for copolymerization, and obtaining the polybutadiene latex when the conversion rate of butadiene is greater than or equal to 98%. Molecular chains in latex particles of the obtained polybutadiene latex are easy to slip, and when the polybutadiene latex is used for an ABS grafting reaction, the grafting rate is high. According to the ABS resin synthesized by the polybutadiene latex prepared by the method disclosed by the invention, the impact resistance of the ABS resin can be improved, and the impact strength of the ABS resin reaches over 400J / m.

Description

technical field [0001] The invention belongs to the field of macromolecules, and in particular relates to a preparation method of polybutadiene latex, the prepared polybutadiene latex, and an ABS resin prepared from the latex. Background technique [0002] ABS resin is one of the five major engineering plastics. It has excellent comprehensive properties such as good impact resistance, high surface hardness, stable size, good chemical resistance and electrical properties, and is easy to form and machine. It is widely used in vehicles, ships, aircraft manufacturing, Construction engineering, electrical components, office documents, medical equipment and many other aspects. [0003] ABS resin is obtained by terpolymerization of butadiene, styrene and acrylonitrile, and has a complex two-phase structure, that is, a dispersed rubber phase and a continuous styrene-acrylonitrile copolymer matrix resin phase (SAN resin). The impact resistance of ABS resin is due to the fact that th...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08F236/06C08F236/12C08F220/24C08F220/14C08F222/02C08F220/44C08F220/18C08F279/04C08F212/10C08L55/02C08L25/12
CPCC08F236/06C08F236/12C08F279/04C08L55/02C08F220/24C08F220/14C08F222/02C08F220/44C08F220/1811C08F220/1806C08L25/12C08F212/10
Inventor 张琴花韩强赵以兵贾贵玉
Owner WANHUA CHEM (SICHUAN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap