Sound absorption and thermal insulation polyolefin foamed sheet and preparation method thereof

A polyolefin foaming and foaming sheet technology, which is applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as poor thermal insulation performance, low thermal conductivity, and poor creep recovery.

Active Publication Date: 2016-10-26
HUBEI XIANGYUAN NEW MATERIAL TECH INC
View PDF3 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane rigid foaming materials are favored for their low thermal conductivity, high specific strength, low cost and good mechanical strength, but they cannot be used in acid-base environments. Polyolefin cross-linked foaming materials have excellent insulation Resistance, thermoformability, moisture resistance, moisture resistance, and many productio

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
  • Sound absorption and thermal insulation polyolefin foamed sheet and preparation method thereof
  • Sound absorption and thermal insulation polyolefin foamed sheet and preparation method thereof
  • Sound absorption and thermal insulation polyolefin foamed sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] Sound-absorbing and heat-insulating polyolefin foamed sheet 1 component and weight ratio:

[0047] Low-density polyethylene

[0048] The melt index of low-density polyethylene is 0.3g / 10min, the melt index of ethylene-vinyl acetate copolymer is 1.0g / 10min, the melt index of catalytic polyethylene resin is 0.3g / 10min, and the melt index of polypropylene resin is 1.0 g / 10min, the thermoplastic elastomer is a polymer whose hard segment is polypropylene and soft segment is EPDM rubber, the blowing agent is azodicarbonamide, and the cell regulator is stearic acid and oil A mixture of acids, filler A is graphite and talc, particle size is 10nm, filler B is calcium carbonate and silica, particle size is 15nm, sensitizer is stearate, zinc oxide, the dosage ratio is 1:99 .

[0049] Preparation method of sound-absorbing and heat-insulating polyolefin foamed sheet 1:

[0050] 1) Add 50 parts of low-density polyethylene resin into the high-mixer, and then add 10 pa...

Example Embodiment

[0055] Example 2

[0056] Sound-absorbing and heat-insulating polyolefin foamed sheet 2 components and weight ratio:

[0057]

[0058]

[0059] The melt index of low density polyethylene is 1.2g / 10min, the melt index of ethylene-vinyl acetate copolymer is 1.5g / 10min, the melt index of catalytic polyethylene resin is 0.8g / 10min, and the melt index of polypropylene resin is 4.0 g / 10min, the thermoplastic elastomer is a polymer whose hard segment is polypropylene, soft segment is ethylene propylene diene rubber, vulcanizing agent, the blowing agent is barium azodicarboxylate, and the cell regulator is trimer Glycerol monostearate and stearic acid monoglyceride, filler A is graphite and carbon black, particle size is 200nm, filler B is silica and titanium dioxide, particle size is 400nm, sensitizer is stearate, oxidation Zinc, the dosage ratio is 5:95.

[0060] Preparation method of sound-absorbing and heat-insulating polyolefin foamed sheet 2:

[0061] 1) Add 50 parts of low-density po...

Example Embodiment

[0066] Example 3

[0067] Sound-absorbing and heat-insulating polyolefin foam sheet 3 components and weight ratio:

[0068] Low-density polyethylene

[0069] The melt index of low-density polyethylene is 3.0g / 10min, the melt index of ethylene-vinyl acetate copolymer is 8g / 10min, the melt index of catalytic polyethylene resin is 5g / 10min, and the melt index of polypropylene resin is 14g / 10min. , The thermoplastic elastomer is a polymer whose hard segment is polypropylene, soft segment is nitrile rubber, and vulcanizing agent. The blowing agent is azobisisobutyronitrile, and the cell regulator is triglycerin monostearate. The mixture of acid ester, monoglyceride stearate and polyglyceryl ester, the dosage ratio is 4:2:1, the filler A is a mixture of mica and montmorillonite, the particle size is 20um, and the filler B is borosilicate micro Ball and steel slag powder, the particle size is 100um, the sensitizer is stearate, zinc oxide, and the dosage ratio is 5:95.

[0070] Prepara...

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
Financial indexaaaaaaaaaa
Financial indexaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a sound absorption and thermal insulation polyolefin foamed sheet and a preparation method thereof. The foamed sheet comprises the following raw materials in parts by weight: 110-140 parts of component A, 20-170 parts of component B, 1-20 parts of foaming agent, 0.01-8 parts of cell regulator and 0.1-20 parts of filler, wherein the component A consists of 100 parts of polyethylene and 10-40 parts of polyethylene copolymer; and the component B consists of 10-30 parts of thermoplastic elastomer, 10-80 parts of polyolefin resin and 0-60 parts of rubber. The method comprises the following steps: weighing the polyethylene resin, the thermoplastic elastomer, the polyolefin resin, the rubber, the foaming agent, the cell regulator and the filler according to the weight parts; and performing mixing granulation, sheet extrusion, irradiation crosslinking and free foaming to obtain the foamed sheet. In the invention, the prepared foamed material integrates the sound absorption and thermal insulation functions, the opening rate reaches 5-70%, the sound absorption coefficient reaches 0.2-0.5, and the heat conductivity coefficient reaches 0.026-0.035.

Description

Technical field [0001] The invention relates to the field of foamed sheets, in particular to a sound-absorbing and heat-insulating polyolefin foamed sheet and a preparation method thereof. Background technique [0002] Foam materials can be divided into closed-cell and open-cell foam materials according to their different structures. Among them, the closed-cell foam material has an independent cell structure, and the internal cells are separated from the cells by a wall film, and they are not connected to each other. Because the thermal conductivity of the air in the cells is small, it is closed in the cells and cannot be convective. At the same time, the radiation effect between the cell walls is also very small. It is a material with very good thermal insulation performance. The widely used foam materials mainly include polystyrene, polyimide, phenolic resin, polyurethane, polyolefin and other hair materials. 泡材料. Polyurethane rigid foam materials are favored for their low the...

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): C08L23/06C08L23/12C08L101/00C08L23/08C08L23/16C08L9/02C08L23/20C08K13/02C08K3/04C08K3/26C08K3/36C08K5/098C08J9/10B32B27/20B32B27/32B32B27/06
CPCB32B27/06B32B27/20B32B27/32B32B2266/025B32B2266/0292B32B2307/102B32B2307/304C08J9/102C08J9/103C08J2203/04C08J2323/06C08J2423/06C08K2201/003C08K2201/014C08L23/06C08L2203/14C08L2205/025C08L2205/035C08L2207/04C08L2207/066C08L23/12C08L101/00C08L23/0853C08L9/02C08K13/02C08K2003/265C08K3/36C08K3/04C08K3/34C08L23/16C08L23/22C08K2003/2241C08K5/098C08K13/04C08K7/18C08K3/346C08K2003/2296
Inventor 段建平魏琼
Owner HUBEI XIANGYUAN NEW MATERIAL TECH INC
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