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

High-content easy-to-disperse foaming master batch and preparation method thereof

A foaming masterbatch and easy-dispersion technology, which is applied in the field of high-content easy-dispersing foaming masterbatch and its preparation, can solve the problems of residue and uneven cell size, and achieve low cost, low processing temperature and low energy consumption Effect

Inactive Publication Date: 2020-04-17
中国科学院苏州纳米技术与纳米仿生研究所南昌研究院
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the foaming treatment of the material can also eliminate the shrinkage marks during the injection molding of the product and improve the appearance of the product; reduce the deformation of the product due to the stress change after injection molding; shorten the injection molding cycle and improve production efficiency; but the foam material During the reproduction process, there will be problems such as uneven cell size, cell series connection, foaming agent residue, and foaming agent dust, which have always plagued the development of foaming materials.

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

preparation example Construction

[0022] Another aspect of the embodiments of the present invention also provides the preparation method of the aforementioned high-content easily dispersible foam masterbatch, which includes:

[0023] According to the composition of the aforementioned high-content easily dispersible foaming masterbatch, mix the foaming masterbatch precursor, resin, auxiliary agent and antioxidant evenly to form a mixed material;

[0024] And, the mixed materials are input into a twin-screw extruder for granulation to obtain high-content easily dispersible foam masterbatches.

[0025] In some more specific embodiments, the preparation method of the foam masterbatch precursor comprises:

[0026] Dispersing the carrier into a solvent to form a solution, then mixing and dispersing the solution with a foaming agent to form a slurry, and then drying or concentrating the slurry to form a paste;

[0027] And, carry out extruding granulator granulation and drying treatment on the paste to obtain foamin...

Embodiment 1

[0044] (1) Dissolve 3 parts of PVP K30 in 100ml of water to obtain a solution of PVP K30 and record it as solution I; mix solution I with 97 parts of azodicarbonamide (AC) evenly for wetting, and then adjust the speed of the high-speed disperser to 600rad / min to disperse the mixture evenly; then dry it in a blast drying oven at 60°C until it becomes a paste; adjust the speed of the extrusion granulator to 60rad / min, extrude the paste into granules, and then blow it at 70°C Complete drying in a drying oven to obtain a high-content foaming masterbatch precursor;

[0045] (2) the foaming masterbatch precursor of 95 parts by weight, the EVA of 5 parts by weight, the polyethylene wax of 1 part by weight, the antioxidant 168 of 0.1 part by weight are mixed uniformly in high-speed mixer; Drop into slowly and orderly then Pour into the twin-screw feeding port, the twin-screw speed is 100rad / min, and the temperatures of the first to tenth zones of the twin-screw are 75°C, 80°C, 85°C, ...

Embodiment 2

[0047] (1) Dissolve 15 parts of PVP K60 into 100ml of water to obtain the solution of PVP K60 as solution I; uniformly mix solution I with 85 parts of azoaminobenzene and wet it, and then adjust the speed of the high-speed disperser to 800rad / min. The mixture is uniformly dispersed; then dried in a blast oven at 50°C to a paste; adjust the speed of the extruder granulator to 30rad / min, extrude the paste into granules, and then dry it completely in a blast oven at 50°C Drying to obtain a high-content foaming masterbatch precursor;

[0048](2) Mix the foaming masterbatch precursor of 95 parts by weight, the EVA of 5 parts by weight, the paraffin of 1 part by weight, and the antioxidant 1010 of 0.3 parts by weight in a high-speed mixer; In the screw feed port, the twin-screw speed is 100rad / min, and the temperatures of the first to tenth zones of the twin-screw are 65°C, 70°C, 75°C, 75°C, 75°C, 75°C, 75°C, 70°C, 70°C, and 70°C; The die temperature is 75°C; pull the rubber strip ...

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 high-content easy-to-disperse foaming master batch and a preparation method thereof. The foaming master batch comprises the following components in parts by weight: 70-95 parts of a foaming master batch precursor, 5-30 parts of resin, 0-2 parts of an auxiliary agent and 0.1-0.5 part of an antioxidant. The preparation method of the foaming master batch precursor comprisesthe steps: dispersing a carrier into a solvent to form a solution, then uniformly mixing and dispersing the solution and a foaming agent to form slurry, and then drying or concentrating the slurry toform paste; granulating the paste by an extrusion granulator, and drying to obtain the foaming agent master batch precursor. The foaming master batch precursor is prepared in advance, so that the prepared foaming master batch is high in foaming agent content and good in dispersity, meanwhile, the preparation method has the advantages of being simple in process, low in energy consumption and low incost, a main solvent used in the preparation process is water or ethyl alcohol, and the requirement of green production is met.

Description

technical field [0001] The invention belongs to the technical field of plastic master batch preparation, and in particular relates to a high-content easily dispersible foam master batch and a preparation method thereof. Background technique [0002] Plastic masterbatch is a commonly used plastic processing aid. Generally speaking, plastic masterbatch is composed of filler, carrier resin, various additives, etc. according to a certain ratio. It has the characteristics of high content, easy dispersion and low cost, and is suitable for large-scale preparation of modified composite materials in industry. According to different functions, it can be divided into color masterbatch, moisture-absorbing and defoaming masterbatch, flame-retardant masterbatch, conductive masterbatch, anti-ultraviolet masterbatch, weather-resistant masterbatch, foaming masterbatch, etc. [0003] As an essential additive for foamed plastics, the foaming agent can effectively reduce the weight of the mate...

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): C08J9/16C08J9/10C08J3/22C08L39/06C08L23/08C08L23/06C08L91/06C08L51/08C08L71/02C08K5/526C08K5/134C08K5/09
CPCC08J9/16C08J9/103C08J9/102C08J9/105C08J9/0061C08J9/0023C08J9/0038C08J3/226C08J2203/04C08K5/526C08K5/1345C08K5/09C08J2439/06C08J2423/08C08J2423/06C08J2491/06C08J2451/08C08J2471/02
Inventor 张永毅翟建峰朱军周涛陈名海李鹏君李畅东
Owner 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院