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

Carbon dioxide epe physical foaming twin-screw extruder

A twin-screw extruder and physical foaming technology, which is applied in the field of foamed pearl cotton processing, can solve problems such as increased pressure and difficulty in supplying goods from manufacturers, and achieve the effects of reducing inventory pressure, shortening the delivery cycle, and reducing production costs.

Active Publication Date: 2017-01-11
CHONGQING BISHAN DISTRICT JIECHENG PLASTIC CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, butane is a flammable gas. After processing, the pearl cotton foamed with butane needs to go through a performance stabilization period of 15 to 30 days (depending on the thickness of the pearl cotton) before it can be put into use. Increased inventory pressure, creating greater difficulty for manufacturers to supply

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
  • Carbon dioxide epe physical foaming twin-screw extruder
  • Carbon dioxide epe physical foaming twin-screw extruder
  • Carbon dioxide epe physical foaming twin-screw extruder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A carbon dioxide foamed pearl cotton includes a cotton body in which a plurality of isolated bubbles are distributed. The innovation lies in that carbon dioxide gas is enclosed in the bubbles.

[0016] An pearl cotton foaming agent, the innovation of which is that the pearl cotton foaming agent is liquid carbon dioxide.

[0017] A carbon dioxide EPE physical foaming twin-screw extruder. The twin-screw extruder includes a screw barrel and two screws 2; the two screws 2 are arranged in parallel and meshed with each other, and the screw barrel 1 is provided with a matching screw 2 Mounting hole, two screws 2 are sleeved in the mounting hole; the axial direction of the screw 2 sequentially forms a transmission section 3, a compression homogenization section 4, and a mixing cooling section 5. The innovation lies in: the mixing cooling section 5 In the axial direction, the first mixing section 5-1, the first reverse flow section 5-2, the blowing agent injection section 5-3, the se...

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 carbon dioxide foamed EPE (Expandable Polyethylene). The carbon dioxide foamed EPE comprises a PEE body with a plurality of mutually isolated bubbles distributed therein, wherein free carbon dioxide is sealed in the bubbles. The invention also discloses a corresponding double-screw extruder for physical foaming of an EPE foamer and a carbon dioxide EPE. The double-screw extruder has the technical benefits that a novel EPE adopting carbon dioxide as a foamer is adopted, so that the lead time is greatly shortened, and the EPE per se has certain flame retardancy.

Description

Technical field [0001] The invention relates to a foaming pearl cotton processing technology, in particular to a carbon dioxide EPE physical foaming twin-screw extruder. Background technique [0002] EPE (Expandable Polyethylene), also known as EPE (Expandable Polyethylene), is made of low-density polyethylene through physical foaming. During the foaming process, numerous independent bubbles are generated in the cotton body, which overcomes the fragility, deformation and recovery of ordinary styrofoam The shortcomings of poor performance, it has many advantages such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, recyclability, environmental protection and strong impact resistance. It also has good chemical resistance and is ideal for traditional packaging materials. Replacement devices have been widely used in electronic appliances, instruments, medical equipment, lighting, handicrafts, glass, ceramics, ...

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): B29C47/00B29C47/40B29C47/60C08L23/06C08J9/14
CPCB29C48/402B29C48/505C08J9/122C08J2203/06C08J2323/06
Inventor 周兴福
Owner CHONGQING BISHAN DISTRICT JIECHENG PLASTIC CO LTD