WPC Formula reference

WPC Reference Formula

Formula 1: (PVC micro-foaming wood-plastic formula)

PVC (SG7 or SG8) 100phr

Calcium zinc composite stabilizer TG-200 2.5 phr

CPE 6phr

ACR (KRT-401) 2 phr

Cell regulator (KRT-530) 5phr

ADC foaming agent 0.5 phr

plasticizer 3phr

CaCO3： 8 phr

Wood flour (80-100 mesh) 30-40phr

stearic acid 1phr

PE wax 0.6 phr

Recipe 2:

PVC: 100(K-57) 100

Wood flour 36

Calcium carbonate 20-40

Foam regulator KRT-90 8

lubricants 2

Composite lead salt stabilizer  4.3

PE wax 0.6

Yellow foam AC (TG70) 0.8

White foam NC 0.2

ACM Modifier 4

ACR (KRT-20) 1.6

Stearic acid SA1801 0.7

DOP 3.6

The specific gravity of this formula is 0.42-0.46, the viscosity of the foaming regulator is high, the melt strength is high.

Recipe three:
PVC resin powder 75

CPE135A 3

Foam regulator KRT-90 6
AC foaming agent (KRT-71) 0.4

Lead salt stabilizer  3.5
Foam accelerator 0.4

Anti-shrinkage agent 2-6
Calcium carbonate 23
Epoxidized soybean oil 3
Foam crushing material 10-30

Recipe four:
PVC resin powder 75
PVC composite stabilizer 2.2

CPE135A 3
Foam regulator KRT100 6
AC foaming agent  0.4
Foam Accelerator Composition 5
Foam accelerator 0.4
Oxidized PE wax 0.1
Calcium carbonate 11.5
Wood flour 11.5
Epoxidized soybean oil 4
Foam crushing material containing wood powder 10-30

Formula five: (PVC wood-plastic foam board)

Polyvinyl chloride (SG-5, 6, 7) 100

Composite stabilizer 3.5

Efficient internal and external lubricants 0.5~2.0

AC foaming agent  0.3~0.5

ACR Foaming Processing Aid (KRT-100) 5.0~8.0

Filler 4.0~6.0

Flame retardant 2.0~3.0

Nucleating agent 0.2~0.7

Plasticizer 5.0~10.0

Modified wood flour 20.0~30.0

Above just for reference.

The amount of various raw materials depends on the quality of the raw materials and the level of product performance indicators. 

The same ratio of raw materials is used by different machines and different manufacturers, and the performance of the products made is basically not the same. 

It needs to be determined according to the performance of the machine. Explore the production formula with good fluidity, relatively stable production, and relatively good product quality based on raw material performance.