Process for preparing high shock-resistance polyacrylic ester composite particle grafted vinyl chloride emulsion resin

A polyacrylate and composite particle technology, which is applied in the field of preparation of high-impact polyacrylate composite particles grafted with vinyl chloride emulsion resin, can solve the problem of poor macromolecular chain fluidity, poor weather resistance of polyvinyl chloride, and low notch impact strength. And other issues

Inactive Publication Date: 2004-12-22
HEBEI UNIV OF TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a graft copolymerization modification method, thereby solving the inhomogeneity of macroscopic mixing in the blending modification; pure graft polymer macromolecular chain fluidity is poor, and the modulus of the prepared material is low; Poly

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
  • Process for preparing high shock-resistance polyacrylic ester composite particle grafted vinyl chloride emulsion resin
  • Process for preparing high shock-resistance polyacrylic ester composite particle grafted vinyl chloride emulsion resin
  • Process for preparing high shock-resistance polyacrylic ester composite particle grafted vinyl chloride emulsion resin

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0074] Example 1:

[0075] (1) Preparation of polyacrylate (ACR) composite latex

[0076] Add 100ml deionized water, 0.20g sodium lauryl sulfate, 0.05g potassium persulfate (K 2 S 2 O 8 ) And seed comonomer mixture [2.86g butyl acrylate (BA), 1.54g 2-ethylhexyl acrylate (EHA), 0.066g 1,4-butanediol diacrylate (BDDA)], at room temperature Stir and vent nitrogen to make it fully emulsified. Then, add 0.15g sodium borate (Na 2 BO 4 ·10H 2 O) Adjust the pH between 8-9. Start the water bath to heat up, and at the same time pass cooling water to the reflux condenser.

[0077] When the reaction starts, the system exotherms to heat up. When the temperature of the reaction solution is constant to 75°C, the reaction is kept for 1 hour. Then add 0.08g SDS and 0.10g K 2 S 2 O 8 At the same time, the core layer monomer mixture (11.44gBA, 6.16g EHA, 0.264g BDDA) was added dropwise. After the core layer monomer mixture is dripped, add 0.12 g of SDS. After continuing the heat preservation reactio...

Example Embodiment

[0092] Example 2: During the preparation process of the composite latex (1), no Al was added 2 (SO 4 ) 3 Agglomerating agent, the rest of the formula and operation are the same as in Example 1.

Example Embodiment

[0093] Example 3:

[0094] (1) Preparation of polyacrylate (ACR) composite latex

[0095] The composition of the seed and core layer of the ACR composite latex is the same as in Example 1, and the composition of the shell layer is a mixture of 5.26 g styrene (St), 9.74 g MMA and 0.226 g BDDA monomer. During the synthesis process, after the dropwise addition of the core layer monomer mixture is completed, add 0.12 g of SDS. After keeping the temperature for 2 hours, add 0.08g K 2 S 2 O 8 (No agglomerating agent was added before), start dropping the shell monomer, and refer to Example 1 for the rest of the operation.

[0096] (2) Synthesis of ACR-g-VC emulsion resin

[0097] In this step of the synthesis, the composite latex prepared in this example (1) was used, and the composite particle latex with a solid content of about 24g was added (calculated based on the solid content in the composite latex (1) of this example), and the operation steps were the same as in Example 1. (2). At...

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

No PUM Login to view more

Abstract

The present invention adopts acrylic ester monomer as main raw material, utilizes the processes of seed emulsion polymerization by adopting semi-continuous changing mode, agglomeration or organic agglomerating agent and addition of nano-grade inorganic particles to obtain composite particle latex; in the pressure of the above-mentioned latex it is grafted with polyethylene to obtain the invented composite polyvinyl chloride emulsion resin with high notch impact strength, weatherability and good low-temp. impact property at normal temp. It can be extensively used in the fields of indoor decoration material, electric equipmkent and meter, tog and others.

Description

Technical field: [0001] The invention belongs to a method for manufacturing high-impact composite polyvinyl chloride resin, in particular to a method for preparing high-impact polyacrylate composite particles grafted with vinyl chloride emulsion resin. technical background: [0002] Polyvinyl chloride (PVC) resin is widely used due to its excellent mechanical properties, chemical corrosion resistance, and electrical insulation. It is one of the most widely used plastic varieties in the world. At present, emulsion PVC resin has been widely used in construction, interior decoration materials, electrical instruments, toys, stationery, daily necessities and other industries. However, due to the shortcomings of PVC resin itself, such as sensitivity to notches, low impact strength, and poor weather resistance, its application in certain fields is greatly limited. In order to overcome the above-mentioned shortcomings, various modification methods have been adopted. [0003] The m...

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): C08F265/06
Inventor 潘明旺张留成
Owner HEBEI UNIV OF TECH
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