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PVC resin for SPC Rigid Vinyl Flooring,
PVC resin used for SPC flooring, what knind of PVC resin used for SPC Rigid Vinyl Flooring?,
PVC resin can be processed into various plastic products. It can be divided into soft and hard products according to its application. It is mainly used to produce transparent sheets, pipe fittings, gold cards, blood transfusion equipment, soft and hard tubes, plates, doors and windows. Profiles, films, electrical insulation materials, cable jackets, blood transfusions, etc.

Application

Piping, hard transparent plate. Film and sheeting, photograph records. PVC fibers, plastics blowing, electric insulating materials:

1) Construction material: Piping, sheeting, windows and door.

2) Packing material

3) Electronical material: Cable, wire, tape, bolt

4) Furniture: Decorate material

5) Other: Car material, medical appliance

6) Transportation and storage

Package

25kg kraft paper bags lined with PP-woven bags or1000kg jambo bags 17 tons/20GP, 26 tons/40GP

Shipping & Factory

Type

Raw material for SPC Rigid Vinyl Flooring

PVC 50 KG

Calcium carbonate 150KG

Calcium zinc stabilizer 3.5-5KG

Grinding powder (calcium zinc) 50

Stearic acid 0.8

PE Wax 0.6

CPE 3

Impact modifier 2.5

Carbon Black 0.5

Recipe essentials

1 PVC resin: using ethylene method five type resin, strength toughness is better, environmental protection.

2. The fineness of calcium powder: because the addition proportion is large, it directly affects the cost of the formula, the processing performance and the wear and tear of the screw barrel and the product performance, so the coarse calcium powder can not be selected, and the fineness of calcium powder is beneficial to 400-800 mesh.

3. Internal and external lubrication: considering the material in the extruder high temperature residence time is long, as well as material performance and peeling force factors, it is recommended to use high-performance wax to control the smaller amount of use, and the use of different wax to meet the initial and medium – and long-term lubrication requirements.

4.ACR: Due to the high calcium content of SPC floor, plasticizing requirements are high. In addition to the control of screw type and processing technology, additives must be added to help plasticizing, and ensure that the melt has a certain strength, and has a certain ductility in the calendering process.

5. toughening agent: the floor not only needs low shrinkage rate, good rigidity, but also needs a certain toughness, rigidity and toughness need to balance each other, to ensure the firmness of the lock, not soft at high temperature, and maintain a certain toughness at low temperature. CPE toughness is good, but the addition of a large number of copies reduces the rigidity of PVC, Vica softening temperature, and leads to a larger shrinkage rate.

6. Dispersant: due to more components, and calcium carbonate added proportion is relatively large, so calcium carbonate infiltration dispersion treatment and component dispersion is very important. The dispersion can not only improve the processing performance but also improve the product performance, improve the demolishing cycle, reduce and delay the wear of the screw barrel.

PE wax is not only a lubricant, but also a dispersion, but the amount of general influence of internal and external lubrication balance and melt strength change and increase the shrinkage of products and reduce the stripping force, products become brittle.

Environmental plasticizer: can play a certain dispersion role, and help plasticize, but the amount is too large, will affect the shrinkage rate, product veka temperature drops, with the passage of time, products will become brittle.

Other dispersants: fluorinated compounds, isocyanate compounds, small dosage, good effect, not only play the role of dispersion and coupling lubrication, but the price is high.

7. Return material: try to use the company’s production return material and post-processing recovery material.

Note: Clean, not wet, batch crushing and blending after grinding. In particular, the recovery material of the cut groove must be proportionally blended with the grinding powder to form a closed return material cycle. The change of the amount of return material needs to adjust the process formula of the sample.