Unlock instant, AI-driven research and patent intelligence for your innovation.

Nucleating agent master batch for toughening modification on PP resin and preparation method of master batch

A nucleating agent masterbatch, toughening modification technology, applied in the field of polymers, can solve the problems of difficult mixing, poor dispersion, limited resin compatibility, etc., to achieve the effect of improving dispersion effect and performance

Inactive Publication Date: 2019-08-09
合肥市丽红塑胶材料有限公司
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of organic phosphate is that most of its varieties have too high melting point, which is a dispersed nucleating agent, which has limited compatibility with resins and poor dispersion. It is not easy to mix under normal conditions, and it is easy to cause defects on the surface of the product.

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
  • Nucleating agent master batch for toughening modification on PP resin and preparation method of master batch
  • Nucleating agent master batch for toughening modification on PP resin and preparation method of master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A nucleating agent master batch for toughening modified PP resin, the specific preparation method steps are:

[0025] (1) Prepare equimolar amounts of calcium nitrate and potassium sulfate solutions respectively. After mechanically stirring for 5 minutes, stir slowly for 30 minutes and let stand for 2 hours to obtain a suspension containing 40% calcium sulfate precipitate. According to the ratio of calcium sulfate / PP of 2:1 Mass ratio, add porous PP particles, stir for 10 minutes, ultrasonically disperse for 90 minutes, stand and age for 24 hours, after filtration, recover the filtrate, dry the filter cake at 120°C for 6 hours, and make PP particles loaded with calcium sulfate whiskers;

[0026] (2) Place the PP particles loaded with calcium sulfate whiskers obtained in step (1) in an absolute ethanol solution, add 3% stearic acid, dissolve the stearic acid with an appropriate amount of ethanol, and put it in an ultrasonic oscillator , mix and disperse for 30min, let st...

Embodiment 2

[0031] A nucleating agent master batch for toughening modified PP resin, the specific preparation method steps are:

[0032] (1) Calcium nitrate and potassium sulfate solutions of equimolar amounts are respectively configured, after mechanically stirring for 5 minutes, slowly stirring for 30 minutes, and standing for 2 hours to obtain a suspension containing 40% calcium sulfate precipitate, standing and aging for 24 hours, and after filtering, recover The filtrate and filter cake were dried at 120°C for 6 hours to make calcium sulfate whiskers;

[0033] (2) Place the calcium sulfate whiskers obtained in step (1) in an absolute ethanol solution, add 3% stearic acid, dissolve the stearic acid with an appropriate amount of ethanol, put it in an ultrasonic oscillator, mix and disperse for 30 minutes , let stand for 60min, filter and dry;

[0034] (3) According to the mass ratio of organic nucleating agent / calcium sulfate of 1:6, add the nucleating agent NA-10 into the ethanol sol...

Embodiment 3

[0039] A nucleating agent master batch for toughening modified PP resin, the specific preparation method steps are:

[0040](1) Calcium nitrate and potassium sulfate solutions of equimolar amounts are respectively configured, after mechanically stirring for 5 minutes, slowly stirring for 30 minutes, and standing for 2 hours to obtain a suspension containing 40% calcium sulfate precipitate, standing and aging for 24 hours, and after filtering, recover The filtrate and filter cake were dried at 120°C for 6 hours to make calcium sulfate whiskers;

[0041] (2) Place the calcium sulfate whiskers obtained in step (1) in an absolute ethanol solution, add 3% stearic acid, dissolve the stearic acid with an appropriate amount of ethanol, put it in an ultrasonic oscillator, mix and disperse for 30 minutes , let stand for 60min, filter and dry;

[0042] (3) According to the mass ratio of organic nucleating agent / calcium sulfate of 1:6, and the mass ratio of calcium sulfate / porous PP 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

No PUM Login to View More

Abstract

The invention discloses a nucleating agent master batch for toughening modification on PP resin and a preparation method of the master batch. With calcium salt and sulfate as raw materials, through anultrasonic technology, the pore structures of porous PP particles are filled with a reaction solution, generated calcium sulfate crystal whiskers are evenly loaded in the pores of the PP particles and on the surfaces of the PP particles, and the dispersion effect of the calcium sulfate crystal whiskers in a PP material is improved; the calcium sulfate crystal whiskers after ultrasonic treatment have a certain heterogeneous nucleation function of inducing the beta-crystal form, the generated calcium sulfate crystal whiskers form more nucleation function points in the PP material, and generation of more fine, small and even crystals is induced; with the calcium sulfate crystal whiskers in the PP particles as a carrier, through the ultrasonic technology, an organic nucleation agent is evenlyload on the surfaces of the modified calcium sulfate crystal whiskers, the dispersity of the compound nucleation agent in the PP master batch is improved, and the problem of low dispersity of an organic phosphate nucleation agent in a resin matrix is solved.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a nucleating agent master batch for toughening modified PP resin and a preparation method thereof. Background technique [0002] PP is a general-purpose resin with excellent performance, but its toughness is not ideal, thus limiting its application. In order to achieve the desired high toughness polypropylene, polypropylene can be modified by physical or chemical methods, and in many polypropylene modification studies, the toughening modification of PP by adding toughening agents is a recent research hotspot , research results show that the addition of tougheners such as rubber or rigid particles has different effects on the mechanical properties of the PP blend system. [0003] There are many studies on the toughening modification of calcium sulfate whiskers for polypropylene, but most of them are directly melt-mixed with compatibilizers and PP resins for modification. However...

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): C08L23/12C08K7/08C08K9/12C08K9/04C08K9/06C08K5/52C08J3/22
CPCC08J3/226C08J2423/12C08K5/52C08K7/08C08K9/04C08K9/06C08K9/12
Inventor 张振东
Owner 合肥市丽红塑胶材料有限公司