SILANON & PDMS
     [email protected]
                 

What is the function of PVC processing aids, and how can noise be reduced in PVC drainage pipes?

I. How Do PVC Processing Aids Benefit Plastics?

  1. PVC processing aids exhibit excellent compatibility with PVC resin, dispersing readily within the resin for convenient handling.
  2. PVC processing aids possess intrinsic plasticizing properties. When used in sole compounds, wire and cable compounds, and soft transparent materials, they reduce plasticizer requirements while eliminating plasticizer surface migration issues.
  3. PVC processing aids significantly enhance the low-temperature flexibility and impact strength of finished products.
  4. PVC processing aids markedly improve surface gloss, outperforming ACR.
  5. PVC processing aids exhibit excellent thermal stability and weather resistance.
  6. PVC processing aids reduce melt viscosity, shorten plasticization time, and increase output per unit. They also improve product impact strength and low-temperature flexibility.
  7. Replacing ACR with PVC processing aids on a like-for-like basis allows for reduced lubricant usage or increased filler content while maintaining material properties, opening new avenues for optimizing product quality and reducing costs.

II. How to Reduce Noise in PVC Drainage Pipes?

  1. Manufacturing Double-Wall Hollow Soundproof PVC Drainage Pipes

Modify the extrusion equipment for PVC pipes by adding an intermediate mold between the inner and outer shells. Alter the outer shell mold to increase the distance between the walls, creating a hollow air cavity between them. This preserves the plasticity of PVC while enhancing damping along the flow direction, thereby improving sound insulation.

  1. Utilizing Single-Wall Dual-Material PVC Pipes

Reformulate the original single-wall PVC pipe through secondary processing. Employ plastic foaming technology to create porous sound-absorbing material, increasing wall thickness to enhance damping along the outer wall. This achieves excellent sound insulation but requires additional equipment, raising manufacturing costs.

  1. Fabricating Acoustic PVC Drainage Pipes

PVC pipes are manufactured with spiral-shaped fins attached to the inner wall to create acoustic drainage pipes. The outer wall remains rigid PVC plastic (ensuring the required strength for drainage pipes), while the inner wall features a flexible, soft plastic spiral strip of specific width. This strip partially absorbs the impact pressure of water flow, acting as a buffer for the pipe wall.

The above outlines the functions of PVC processing aids and measures to reduce noise in PVC drainage pipes. Please feel free to contact us with any questions.