Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polyvinyl chloride reinforcing and tougheness improving modifier and preparation and application thereof

A technology of strengthening and toughening, polyvinyl chloride, used in composite materials, modifiers for improving the mechanical properties of polyvinyl chloride resins, and the preparation of modifiers, which can solve problems such as poor toughness, complex procedures, and limited modification effects. , to achieve the effect of improving impact resistance and tensile properties, simplifying production processes and reducing product costs

Inactive Publication Date: 2005-07-13
SICHUAN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The application of unmodified polyvinyl chloride resin has obvious defects: the impact resistance is poor, and the notch impact resistance of pure rigid PVC is only 2-3KJ / m 2 , belonging to hard and brittle materials; especially poor low-temperature toughness, rapidly hardens and becomes brittle as the temperature drops, and is easily brittle when impacted; soft PVC has a large migration of plasticizers, and is easy to be brittle during use
However, the process is complicated, and the dispersion effect of nano-aggregates is not good. The active inorganic nano-filler in the modifier has a limited modification effect on the matrix resin, and the strength and toughness of PVC are not significantly improved.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]SG-5 type polyvinyl chloride resin is used, silicon dioxide with an average particle size of 15nm is used as inorganic nano filler, and the weight ratio of polyvinyl chloride to nano silicon dioxide is 60 / 40. The coupling agent is a silane coupling agent, and absolute ethanol is used as a dispersant. The stabilizer is organic tin mercaptide. The amount of the coupling agent is 1% (weight) of the amount of nano silicon dioxide, and the amount of stabilizer organic tin is 3% (weight) of the amount of polyvinyl chloride resin. nano-SiO 2 Dry first, then mix with polyvinyl chloride and stabilizer evenly for later use. According to the above proportion, the coupling agent is dispersed with absolute ethanol, and the solution is poured into the mixture of polyvinyl chloride resin, inorganic nanoparticles and stabilizer, and mixed evenly. Put the compounded materials into the vibration ball mill for vibration grinding. The weight ratio of the material and the steel ball in t...

Embodiment 2

[0026] SG-5 polyvinyl chloride resin is used, calcium carbonate with an average particle size of 60nm is used as the inorganic nano filler, and the weight ratio of polyvinyl chloride to nano calcium carbonate is 20 / 80. The coupling agent is a titanate coupling agent, and absolute ethanol is used as a dispersant. The stabilizer is organic tin mercaptide. The consumption of the coupling agent is 1% of the consumption of the nano-calcium carbonate, and the consumption of the stabilizer organic tin is 3% of the consumption of the polyvinyl chloride resin. Batching method is with embodiment 1. Put the compounded materials into the vibration ball mill for vibration grinding. The weight ratio of the materials and the steel balls in the vibratory ball mill is 1:15, and the control speed is 900rpm. Polyvinyl chloride reinforced toughening modifier 2 was prepared through full vibration grinding reaction. The prepared polyvinyl chloride reinforcing and toughening modifier 2 was blend...

Embodiment 3

[0028] SG-5 polyvinyl chloride resin is used, calcium carbonate with an average particle size of 60nm is used as the inorganic nano filler, and the weight ratio of polyvinyl chloride to nano calcium carbonate is 40 / 60. The coupling agent is a titanate coupling agent, and absolute ethanol is used as a dispersant. The stabilizer is organic tin mercaptide. The consumption of the coupling agent is 1% of the consumption of the nano-calcium carbonate, and the consumption of the stabilizer organic tin is 3% of the consumption of the polyvinyl chloride resin. Batching method is with embodiment 1. Put the compounded materials into a vibratory ball mill for vibratory milling. The weight ratio of the materials and steel balls in the vibratory ball mill is 1:15, and the control speed is 900rpm. Polyvinyl chloride reinforced toughening modifier 3 was prepared through full vibration grinding reaction. Blend the prepared polyvinyl chloride reinforcing and toughening modifier 3 with 8 part...

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
particle sizeaaaaaaaaaa
diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a polyvinyl chloride reinforcing and toughening modifier as well as its preparation method and application. The polyvinyl chloride reinforced and toughening modifier is prepared under the action of the polyvinyl chloride, and the high-strength and high-toughness polyvinyl chloride / inorganic nano particle composite material can be obtained through extrusion processing of the modifier and the matrix polyvinyl chloride resin. The polyvinyl chloride / inorganic nanoparticle composite material prepared by using this modifier can achieve nanoscale uniform dispersion of inorganic nanoparticles in the matrix resin, good interface compatibility between resin and particles, and high interface adhesion, which can significantly improve Impact resistance and tensile properties of polyvinyl chloride products.

Description

1. Technical field [0001] The invention relates to the field of polymer processing, in particular to a modifier for improving the mechanical properties of polyvinyl chloride resin. The invention also relates to a preparation method of the modifier and a composite material prepared with the modifier. 2. Background technology [0002] As one of the five general-purpose resins, polyvinyl chloride resin is second only to polyethylene in output. At present, the application and consumption structure of polyvinyl chloride resin is dominated by rigid products, and the application and consumption of polyvinyl chloride rigid products account for more than 65% of the world. With the growth of the national economy, the country vigorously promotes and uses chemical building materials, and the proportion of hard products in PVC products continues to increase. PVC products have changed from soft products such as wires, cables, artificial leather, plastic shoes, floor leather, etc. The di...

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 Patents(China)
IPC IPC(8): C08K5/57C08L27/06
Inventor 郭少云田满红
Owner SICHUAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com