How to prevent PVC pipes from becoming brittle?

PVC Pipe manufacturer PVC pipe brittle basically in the physical and mechanical properties are fully reflected, its main characteristics are: cutting collapse, cold punching rupture, resulting in PVC pipe physical, mechanical properties of a lot of, mainly for the following:

PVC Pipe formula and mixing process is unreasonable:

PVC pipe packing too much: in view of the current market of low price, and the rise of raw material prices, PVC pipe manufacturers are in reducing the cost, the formal PVC pipe manufacturers through the optimization of formula combination, reduce the cost of not reducing the quality; some PVC pipe manufacturers are reducing the cost while reducing the quality of products. Due to the formula composition, the direct and effective method is to increase the filler, and the commonly used filler in the PVC pipe is calcium carbonate.

Methods to solve the brittleness issue of PVC pipes are as follows:

(1) When the PVC pipe is used for the production of soft products, the amount of plasticizer and lubricant is needed to reduce the production cost, and also solve the problem of surface migration of plasticizer and lubricant.

(2) When the PVC pipe is used for profile production, the surface finish and tensile strength of the product will be increased. If there is a decrease in welding angle strength, it is recommended to reduce the amount of stabilizer, and then reduce the amount of stabilizer.

(3) When the PVC pipe is used for the production of the thread-piercing pipe, the resilience of the product is very good, and the compressive strength is increased by 2% -3%. If poor melt strength occurs in the production, it is recommended to add ACR appropriately.

(4) When the PVC pipe is used for the production of PVC injection molding parts, if the butterfly spot appears in the product, it is recommended to remove DOP, epoxy soybean oil, PE wax and other sliders, and add 1-1.5 parts of monoglyceride, the effect is very good.

(5) Due to the excellent fluidity of PVC pipe, it can reduce the wear of material, material cylinder and screw and prolong the service life of the processing equipment, CPE135A and ACR401, and the dosage of external lubricant by 20% -30%, thus reducing the production cost and solving the problem of black line on the pipe.