Yellow pvc pipe

Yellow pvc pipe DEFAULT

The main reason for the yellowing of PVC pipes is that the amount of stabilizer is not enough or the grade is not good, and there should be redness. It is possible that a particularly poor quality stabilizer was used.

But in most cases, the problem is caused by unbalanced lubrication, too little lubrication, especially too little external slip, and excessive plasticization causes discoloration and brittleness of the pipe.

You can add some titanium dioxide to see if it can cover it. If not, try adding stabilizer or replace it. If it is calcium-zinc stabilizer, pay more attention to the adjustment of slip agent.

In addition, lubricants affect plasticization, calcium carbonate is added with whitening agents, etc., and there is PVC resin. Under the same other conditions, poorly used PVC will become yellower and require more stabilizers. .

Under normal circumstances, one would think of the problem of stabilizers. In fact, when the stability is sufficient, lubrication is also a very important factor. In addition, if the calcium powder gets damp, it will also affect the plasticization.

The stabilizer is generally considered first, but the solution to the problem can generally be started by adjusting the lubrication system appropriately. Excluding the problem of stabilizers, focus on slip agents and dynamic balance. The stabilizers mentioned in the industry generally do not contain antioxidants. But calcium and zinc stabilizers generally contain antioxidants.

The background color of rutile is reddish, while the background color of anatase is blue. Rutile is better, but more expensive.

Whether it is rutile or anatase titanium dioxide, in the visible wavelength range (400-700nm), they have high reflectivity to light, so they have good whiteness. However, in the ultraviolet wavelength range less than the visible light range, such as 300-400 nanometers, the performance of the two different crystal types of titanium dioxide is very different.

For rutile titanium dioxide (red line) in the very lethal UV-A band (350-400nm), its reflectivity to ultraviolet rays is much lower than that of blue anatase titanium dioxide. In other words, it is The absorption rate of ultraviolet rays is much higher than that of blue anatase titanium dioxide.

Under this circumstance, the ultraviolet light that the organic resin around the film-forming substance has to share is much less, so the life of these organic substances will be longer. This is why what we usually call rutile-type titanium self-powder is much better than anatase-type weather resistance, these characteristics are innate.

During extrusion, the background color of the titanium dioxide type affects the color of the product. In the later use, the difference of the ultraviolet absorption of the titanium dioxide affects the weather resistance of the product and thus affects its color. In fact, rutile type titanium dioxide is only slightly yellower than anatase type and is not yellowish. The problem lies in the possibility of stabilizers. It may also be the use of composite stabilizers. At present, there are some domestic manufacturers of composite stabilizers. In order to reduce the cost, a lot of lubricants are added and the amount of active ingredients is reduced. The stability is slightly insufficient under the same amount.

The temperature is too high, the compression ratio of the mold is too large, the amount of stabilizer added is not enough, the lubrication system is problematic, the stability of the resin itself is not enough, the calcium powder tide, the gap between the screw and the barrel is problematic, the shear is too large, and there are many reasons. Actual situation investigation!!

problem solved:

0.1 stearic acid is added to promote plasticization
And 0.3 parts of titanium dioxide, mainly to cover up the problem of background color
The appearance of the made pipe is very white, and the color light is reddish

Sours: https://www.pvcpipefitting.com/how-to-solve-the-yellowing-of-pvc-pipes/

PVC gas pipes are yellow in colour and suitable for pressure applications. PVC gas pipes are available in sizes DN 20 to DN 100 in class 100.

Vinidex PVC gas pipes are suitable for use with Vinidex PVC Pressure Fittings which are manufactured in accordance with AS/NZS 1477.

Please contact Vinidex if you require further information.


  • Corrosion resistant

    PVC pipes are totally unaffected by soil and are suitable for below ground installation.

  • Light weight

    PVC pipe is light weight for ease of handling and installation.

Product Properties

Certifications & Approvals

Installation

Chemical
Material Properties

Green Star

Vinidex PVC pressure pipes and fittings are manufactured from BEP PVC and have an EPD registered with the Australasian EPD Programme. This allows constructors to claim credit points under the Green Building Council of Australia’s (GBCA) Green Star ratings tools and the Infrastructure Sustainability Council of Australia’s (ISCA) Infrastructure Sustainability rating scheme.

Safety Data Sheets (SDS)

Click here to access our Safety Data Sheets page.

 

PVC SCJ Pressure and Non-Pressure Jointing Video

Standards

For installation of PVC gas pipes, refer to AS/NZS 4645 – Gas distribution networks and AS/NZS 5601 – Gas installations.

Chemical
Material Properties

Certifications & Approvals

Green Star

Vinidex PVC pressure pipes and fittings are manufactured from BEP PVC and have an EPD registered with the Australasian EPD Programme. This allows constructors to claim credit points under the Green Building Council of Australia’s (GBCA) Green Star ratings tools and the Infrastructure Sustainability Council of Australia’s (ISCA) Infrastructure Sustainability rating scheme.

Safety Data Sheets (SDS)

Click here to access our Safety Data Sheets page.

 

PVC SCJ Pressure and Non-Pressure Jointing Video

Standards

For installation of PVC gas pipes, refer to AS/NZS 4645 – Gas distribution networks and AS/NZS 5601 – Gas installations.

Sours: https://www.vinidex.com.au/products/pvc-pressure-systems/yellow-gas-pipe/
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IndiaMART >PVC, FRP, HDPE & Other Plastic Pipes >Agricultural Pipes >PVC Pipes

Product Specification

Length of one pipe 3m, 6m
Brand AS
Diameter 1/2 "

Product Description

We are actively involved in providing an extensive range of Yellow PVC Pipe. Due to high demand, professionals develop these products in varied specifications that meet on client’s demand.

 


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Product Image

AS Yellow PVC Pipe, Length of one pipe: 6m

Company Details


About the Company

Year of Establishment2013

Legal Status of FirmPartnership Firm

Nature of BusinessManufacturer

Number of Employees51 to 100 People

Annual TurnoverUpto Rs. 50 Lakh

IndiaMART Member SinceFeb 2016

GST19AAYFA2686E1ZX

Established in the year of 2013, A S Enterprise is the leading Manufacturer and Wholesaler of Electrical PVC Pipes, Transparent PVC Pipes and Colored PVC Pipes. Our products are widely used for their longer life and flawless finish. Our presented products are extremely admired for their longer life, sturdiness and durability. Besides, our moral business strategy, nominal price, honest dealing, well-planned ship facility has assisted us in upholding prominent position in the market.

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Sours: https://www.indiamart.com/proddetail/yellow-pvc-pipe-15163538188.html

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Pipe yellow pvc

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