Process for assisting in foaming of cross-linked polyolefin as well as ultrasonic treatment device for process

A technology of cross-linking polyolefin and processing device, which is applied in the field of polymer foaming technology, can solve the problems of excessive pore size, different pore size, rupture, etc., and achieve the effect of improving quality, excellent performance and fine bubbles

Active Publication Date: 2012-11-07
SHANDONG TAISHAN JINRUN PLASTIC PRODS +1
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although after kneading, plasticizing and other processes, the dispersion in polyolefin is still very uneven due to the agglomeration effect between solid particles, especially the foaming ...

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 assisting in foaming of cross-linked polyolefin as well as ultrasonic treatment device for process
  • Process for assisting in foaming of cross-linked polyolefin as well as ultrasonic treatment device for process
  • Process for assisting in foaming of cross-linked polyolefin as well as ultrasonic treatment device for process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment is a process for assisting cross-linked polyolefin foaming and its ultrasonic treatment device. The polyolefin foam material is subjected to ultrasonic treatment, and multiple sets of ultrasonic treatment devices 7 can be installed in the foaming furnace according to the ultrasonic treatment effect of the final product. Described ultrasonic processing device 7 comprises base 14, body 9, ultrasonic generator 13, ultrasonic transducer 11 and control and power supply part; Described base 14 two ends have two pulleys 15 respectively, on both sides of foaming furnace A guide rail 6 is respectively arranged on the inner wall, and the pulleys 15 at the two ends of the base 14 are installed on the guide rail 6 and can move back and forth along the guide rail ...

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 process for assisting in foaming of cross-linked polyolefin as well as an ultrasonic treatment device for the process. The ultrasonic treatment device is configured in a common foaming furnace to ultrasonically treat a polyolefin foaming material which is just foamed but still in a molten state. Lots of small holes are formed in a polyolefin melt by high energy and strong cavitation effect of ultrasonic vibration, so that the free energy barrier for bubble nucleation is reduced, bubble formation is facilitated, the total quantity of bubbles is increased and the average diameter of bubbles is reduced. In addition, large bubbles can be broken into multiple small bubbles by strong ultrasonic vibration, and the small bubbles are re-surrounded by the polyolefin melt, so that the bubbles in the melt are more uniform, and the polyolefin material with densely and uniformly distributed air holes can be obtained.

Description

technical field [0001] The invention belongs to the field of polymer foaming technology, and in particular relates to a technology for assisting cross-linked polyolefin foaming and an ultrasonic treatment device thereof. Background technique [0002] Polyolefin plastics have a wide range of applications, have good physical, chemical and mechanical properties, good toughness, flexibility and cushioning properties, and have properties such as electrical insulation and heat insulation. They are widely used in packaging, chemical industry, construction and other fields. Polyolefin foams are widely used and one of the first foams to be successfully produced. As early as 1941, DuPont of the United States successfully prepared LDPE foam by using the nitrogen method. After decades of development, polyolefin foams have matured and diversified in terms of varieties and applications. With the continuous deepening of theoretical research and the advancement of foaming technology, foam...

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): B29C44/56B29K23/00
Inventor 杨小兵龙国荣卞志勇赵付彬
Owner SHANDONG TAISHAN JINRUN PLASTIC PRODS
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