High Elasticity Sound Absorbing Cotton Egg Shape Acoustic Panels for Indoor Music Studio Soundproofing Foam From China

• After-sales Service: None
• Warranty: None
• Material: NBR/PVC
• Refractoriness: -20ºC-80ºC
• Diameter: None
• Apparent Density: 35~65kg/m³
• Model NO.: 20mm
• Surface Treatment: Smooth Surface Without Cracks
• Usage: Thermal Insulation
• Color: Black
• Smoke Density: 75
• Transport Package: Plastic Bag Packaging
• Specification: 15-30mm
• Trademark: Yademei
• Origin: Dacheng County, Langfang City, Hebei Province
• HS Code: 4008110000
• Production Capacity: 300000

Product Description

Product advantages

       Egg sound-absorbing cotton

       

   Egg cotton is also known as wave cotton and crest cotton. It is a kind of sound-absorbing cotton. Egg cotton is a kind of sponge that has been specially treated by equipment to form a convex and concave wavy shape. Its interior is full of small voids and semi-opened structures, which can absorb a large amount of incoming sound wave energy and attenuate sound waves, reducing the interference and noise of indoor reflected sound. Reverberation, improve the purity of sound, is a high-performance product of sound-absorbing and noise-reducing materials.

 

 

 

Product display

Product performance index

1	surface density		Kg/m³	≤95	46
2	oxygen index		%	≥32	34.4
3	Smoke density		/	≤75	28
4	thermal conductivity	Average temperature::-20ºC	W/(m·K)	≤0.034	0.030
		Average temperature::0ºC	W/(m·K)	≤0.036	0.033
		Average temperature::40ºC	W/(m·K)	≤0.041	0.038
5	Wet resistance factor	Moisture permeability	G/(m·s·Pa)	≤1.3*10^-10	8.7*10^-11
		Moisture permeability coefficient	/	≥1.5*10^2	2.3*10^3
6	Vacuum water absorption		%	≤10	3
7	Compression springback rate Compression ratio 50% Compression time 72 h		%	≥70	89
8	ageing resistance ,150h		/	Slight wrinkle, no crack, no pinhole, no deformation	pass through

    

                                               

    It has a large number of internal and external pores and air bubbles. When the sound wave is incident into it, it can cause the air in the gap to vibrate; due to the viscous resistance of the air and the friction between the air and the hole wall, a considerable part of the sound energy is converted into heat energy and consumed. In addition, when the air is compressed adiabatically, heat exchange occurs continuously between the air and the hole wall. Due to heat conduction, part of the sound energy is also converted into heat energy. In order to achieve the effect of sound buffering and sound absorption, the sound absorption effect has an important relationship with the size of the opening and the thickness of the entire cotton. If it is too thin, even if it can absorb sound, it can only absorb a small part, and the opening is uncomfortable. If the opening is too large, it will have no sound-absorbing effect. If it is too small, it will help too much sound. In this regard, the workmanship is appropriate. The friction with the sound-absorbing cotton will buffer the movement of the original sound and reduce the penetrating power of the original sound, so it still has an auxiliary effect on sound insulation, but it is better to use professional sound insulation cotton for sound insulation.           


                                                    Company Profile
 

      Luya thermal insulation materials hebei CO.,LTD is a collection of scientific research,production,sales ,construction as one of the science and technology is a comprehensive company,the company production base is located in the famous production base of thermal insulation material dacheng county,hebei province,the company mainly products rubber insulation products,high-pressure polyethylene,rock wool products,glass wool products,and other varieties,is widely used in petroleum and petrochemical,electric power,metallurgy,polysilicon and coal chemical industry ,central air conditioning,refrigeration,etc

RFQ
   

 

Q: Are your products professional?
Answer: Luya has more than 10 years of experience in serving end users, and has a good understanding of the characteristics and usage of materials, and can provide professional advice on products when you need it.

Q: Are you a factory or a trading company?
Answer: Factory.

Q: What is the minimum order quantity and delivery period?
Answer: Common specifications are available in stock and can be shipped in any quantity. Delivery time: The goods can be picked up within 7-15 days after the deposit arrives.

Q: What can you do for us?
Answer: We will always shorten the buyer's delivery time. We pack our products. We fix the products in the container well toensure that they reach the destination port safely. And we provide the best and professional pre-service and after-sales service.