(1) Glass transition temperature Tg: refers to a transition temperature of an amorphous polymer (including an amorphous portion in a crystalline polymer) from a glassy state to a high elastic state or by the latter. It is the lowest temperature for the free movement of the macromolecular segment of the amorphous polymer, and is also the upper limit of the working temperature of the product.
(2) Melting temperature Tm: For a crystalline polymer, the temperature at which a three-dimensional remote ordered state of a macromolecular chain structure is transformed into a disordered viscous state, also referred to as a melting point. It is the lower limit of the processing temperature of the crystalline polymer molding.
(3) Activity temperature Tf: refers to the temperature at which the amorphous polymer changes from a highly elastic state to a viscous flow state. It is the lower limit of the processing temperature of amorphous plastic.
(4) Inactive temperature: The highest temperature at which no activity occurs under a certain pressure. A certain amount of plastic is added to the actual tube of the capillary rheometer die, heated to a certain temperature, and after constant temperature for 10 minutes, a constant pressure of 50 MPa is applied. If the material does not flow out of the die, the material is discharged after pressure relief. The temperature rise is 10 degrees, and the same amount of constant pressure is applied after 10 minutes of heat preservation. This is continued until the melt flows out of the die, and the temperature is reduced by 10 degrees, which is the inactive temperature of the material.
(5) Decomposition temperature Td: refers to the polymer in the viscous state, when the temperature is further increased, the degradation of the molecular chain is intensified, and the temperature at which the polymer molecular chain is significantly degraded is the decomposition temperature.
1.Material:
low carbon iron wire,stainless steel wire and PVC coated wire
2.Wire Mesh style:
1-Electro galvanized wire mesh
2-Hot-dipped galvanized wire mesh
3-PVC coated wire mesh
4-stainless steel wire mesh
3.Wire Mesh type:
Weaving wire mesh: plain weave ,twill weave ,plain dutch weave ,twill dutch weave ,bead knitting
Welded wire mesh: welded before galvanized, welded after galvanized
Punching wire mesh, Expand wire mesh, Square Wire Mesh etc.
Wire Mesh Series,Galvanized Iron Wire Mesh ,Wind Dust Net,Square Wire Mesh
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