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

A polyurethane board with sound insulation function and its preparation process

A technology of polyurethane board and polyurethane layer, which is applied in the direction of sound insulation, roofing with flat/curved panels, synthetic resin layered products, etc., and can solve problems such as poor sound insulation effect

Active Publication Date: 2021-08-20
北京茂华聚氨酯建材有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing sound-insulating polyurethane sandwich panels have poor sound-insulating effects and do not meet the existing needs. For this, we propose a sound-insulating polyurethane panel

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
  • A polyurethane board with sound insulation function and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Example: a polyurethane board with sound insulation function, such as figure 1 As shown, it includes the substrate 4, the second polyurethane layer 3, the damping layer 2, and the first polyurethane layer 1 arranged in sequence, and the second polyurethane layer 3, the damping layer 2, and the first polyurethane layer 1 are covered with the substrate 4. The housing 5 inside it.

[0037] Both the first polyurethane layer 1 and the second polyurethane layer 3 are made of PU material. Polyurethane refers to a large class of polymers containing more carbamate group characteristic structures on the main molecular chain. It is a kind of polymer between plastics and plastics. The polymer material between rubbers has a large elongation, a wide range of hardness, a wide range of formula adjustment, and excellent wear resistance and mechanical properties.

[0038] The damping layer 2 is a self-adhesive modified asphalt board. As a viscoelastic material, the damping layer 2 is at...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a polyurethane board with sound insulation function and its preparation process, which comprises a substrate, a second polyurethane layer, a damping layer, a first polyurethane layer arranged in sequence, and the second polyurethane layer, the damping layer, the first polyurethane layer in cooperation with the substrate A shell covered by a polyurethane layer, and holes are opened on the surface of the shell; it also includes a silencing tube, the wall of the silencing tube is concavely formed with grooves, and multiple grooves are arranged along the axial direction; the silencing tube Through the first polyurethane layer, the damping layer and the second polyurethane layer, the ends are respectively flush with the surface of the first polyurethane layer or the surface of the second polyurethane layer; a sound-absorbing groove is opened on the surface of the first polyurethane layer away from the damping layer, and the sound-absorbing groove is curved Arrangement, the end of the muffler pipe is located in the sound-absorbing groove; the sound-absorbing groove is also filled with sound-absorbing cotton. The polyurethane board of the present invention has good sound insulation function by directly consuming sound wave energy through four processing methods of sound wave isolation, resistance, elimination and absorption.

Description

technical field [0001] The invention relates to the technical field of polyurethane board production, in particular to a polyurethane board with sound insulation function and a preparation process thereof. Background technique [0002] With the vigorous development of our construction industry, most people have become frugal in their construction choices, and polyurethane sandwich panels are polyurethane insulation sandwich panels for construction, also known as anti-seepage sandwich roof panels, polyurethane rigid foam Insulation board, polyurethane composite board, PU board, etc. It is a high-efficiency and energy-saving building envelope material with wide application and great potential. It is also a new type of energy-saving panel advocated and promoted by the Ministry of Construction. This product uses polyurethane rigid foam as the insulation layer with double metal surfaces and single metal surfaces. , non-metallic surface composite panels, usually used in industria...

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): E04B1/86E04D3/35B32B27/06B32B27/40B32B11/04B32B3/30B32B3/24B32B33/00
CPCB32B3/266B32B3/30B32B11/046B32B27/06B32B27/40B32B33/00B32B2307/102B32B2307/50B32B2307/554B32B2307/7246E04B1/86E04D3/35E04D3/354E04D3/357
Inventor 韩长海
Owner 北京茂华聚氨酯建材有限公司
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