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

Physical foaming thermoplastic elastomer composition for floating cables and preparation method thereof

A thermoplastic elastomer and physical foaming technology, applied in the field of thermoplastic elastomer compositions, can solve the problems of the water-blocking layer of the foamed sheath, poor resistance to flexing, poor fatigue resistance of the sheath layer, and temperature sensitivity, etc., to achieve development Uniform cells, smooth surface, and improved polarity

Active Publication Date: 2022-04-12
广州敬信高聚物科技有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a kind of floating cable disclosed by Chinese patent authorization announcement number CN2528083Y adopts a foamed polyethylene-solid light-resistant and heat-resistant polyethylene structure. This patent basically solves the problem of light weight and being able to float on water, but there is a sheath layer poor fatigue resistance
A kind of floating cable disclosed by Chinese patent authorization announcement number CN101299355A also has the problem that the water blocking layer of the foamed sheath is not resistant to flexing
Foamed polyethylene mostly uses azodicarbonamide foaming agent. This foaming agent is sensitive to temperature, has a large gas volume and rapid gas generation, and the foaming temperature range can be adjusted. It can obtain polyethylene with uniform cells and smooth surface. but not environmentally friendly

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
  • Physical foaming thermoplastic elastomer composition for floating cables and preparation method thereof
  • Physical foaming thermoplastic elastomer composition for floating cables and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] A method for preparing a physically foamed thermoplastic elastomer composition for floating cables, comprising:

[0035] Mixing steps: Add SEBS and white mineral oil to a mixer with a rotation speed of 300-600r / min and stir for 3-5 minutes according to the formula ratio, then add polypropylene, polyolefin elastomer, maleic anhydride compatibilizer, silicone masterbatch, Foaming agent, antioxidant, stirring for 25-30 minutes to obtain a mixture;

[0036] Extrusion step: Pour the mixture into an extruder to melt and granulate at a temperature of 140-170° C. and an extrusion speed of 200-350 rpm to obtain a physically foamed thermoplastic elastomer composition.

[0037] As a further embodiment, the extruder is a co-rotating twin-screw extruder with an aspect ratio of 40-48.

Embodiment 1

[0041] A physical foaming thermoplastic elastomer composition for floating cables comprises the following components by weight: 20 parts of softening plasticizer, 32 parts of SEBS, 28 parts of polypropylene, 10 parts of polyolefin elastomer, 8 parts of compatibilizer 1 part, 2 parts of silicone masterbatch, 1 part of foaming agent, 0.1 part of antioxidant.

[0042] A method for preparing a physically foamed thermoplastic elastomer composition for floating cables, comprising:

[0043]Mixing steps: Add SEBS and white mineral oil to a mixer with a rotation speed of 300r / min and stir for 3 minutes according to the formula ratio, then add polypropylene, polyolefin elastomer, maleic anhydride compatibilizer, silicone masterbatch, foaming agent, antioxidant, stirred for 25 minutes to obtain a mixture;

[0044] Extrusion step: Pour the mixture into an extruder to melt and granulate it at a temperature of 140° C. and an extrusion speed of 200 rpm to obtain a physically foamed thermopl...

Embodiment 2

[0047] A physical foaming thermoplastic elastomer composition for floating cables comprises the following components by weight: 22 parts of softening plasticizer, 31 parts of SEBS, 27 parts of polypropylene, 10 parts of polyolefin elastomer, 8 parts of compatibilizer 1 part, 2 parts of silicone masterbatch, 1 part of foaming agent, 0.1 part of antioxidant.

[0048] A method for preparing a physically foamed thermoplastic elastomer composition for floating cables, comprising:

[0049] Mixing steps: Add SEBS and white mineral oil to a mixer with a speed of 600r / min and stir for 5 minutes according to the formula ratio, then add polypropylene, polyolefin elastomer, maleic anhydride compatibilizer, silicone masterbatch, foaming agent, antioxidant, stirred for 30 minutes to obtain a mixture;

[0050] Extrusion step: Pour the mixture into an extruder to melt and granulate it at a temperature of 170° C. and an extrusion speed of 350 rpm to obtain a physically foamed thermoplastic el...

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
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a physical foamed thermoplastic elastomer composition for a floating cable, comprising the following components in parts by weight: 20-25 parts of softening plasticizer, 28-35 parts of SEBS, 25-28 parts of polypropylene, 8-12 parts of polyolefin elastomer, 5-9 parts of compatibilizer, 1-2 parts of silicone masterbatch, 0.5-1 part of foaming agent, and 0.05-0.1 part of antioxidant. The invention also discloses a preparation method of the physically foamed thermoplastic elastomer composition for floating cables. The physically foamed thermoplastic elastomer composition for floating cables of the invention has the characteristics of uniform cells, good mechanical properties, low temperature resistance and good weather resistance; the floating cables prepared with the composition not only have good mechanical properties, but also have good fatigue resistance, light and heat resistance. And the foaming is uniform, and it can have good bonding with some polar materials.

Description

technical field [0001] The invention relates to a thermoplastic elastomer composition, in particular to a physically foamed thermoplastic elastomer composition for floating cables and a preparation method thereof. Background technique [0002] In recent years, the development of the ocean has continued to increase, and there are more and more equipment used for offshore operations and detection. The charging and communication cables used for these equipment generally use ordinary cables. Ordinary cables are difficult to support on the sea, and are easy to scratch with hard objects on the river bed, causing damage and affecting their use. Excessively high specific gravity is also not conducive to long-term repeated retracting and unwinding operations, and the cables are prone to fatigue and cracking. And existing technology adopts foamed polyethylene more. For example, a kind of floating cable disclosed by Chinese patent authorization announcement number CN2528083Y adopts f...

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): C08L53/02C08L23/12C08L51/00C08L23/00C08J9/32
CPCC08J9/32C08J2353/02C08J2423/12C08J2451/00C08J2423/00C08J2203/22
Inventor 陈良赵志明
Owner 广州敬信高聚物科技有限公司
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