Type of laboratory film stretcher

The principle of plastic film stretching is to melt the polymer resin through the extruder and extrude thick sheets at the glass transition temperature. In the high elastic state of the polymer under the appropriate temperature range of the upper melting point, the vertical and horizontal puller are successively advanced along the longitudinal and transverse direction under the action of external force a definite multiple of stretching, so that the molecular chains of the polymer are oriented and ordered in the direction parallel to the plane of the film; The orientation of the macromolecular structure is fixed by heat setting in the tensile state. Finally, the ideal plastic can be made by cooling and subsequent treatment

Product features of the Biaxial Stretcher

Plastic film molding processing methods have many kinds, such as calendering method, flow method, blow molding method, stretching method, etc., especially the Bidirectional stretching method is the most concerned by people.

This is because the plastic film produced by the bidirectional stretching method has the following characteristics:

1. Mechanical properties have been greatly improved. The tensile strength is 3-5 times that of the unstretched film.

2. The barrier performance is improved, and the permeability to gas and water vapor is reduced.

3. The optical properties of the film are improved, and the transparency and surface gloss are improved.

4. The heat resistance and cold resistance of the film are improved, and the dimensional stability of the film is good.

5, the thickness uniformity of the stretched film is better than the calendering method and blow molding method.

6, tensile film production speed, large capacity, high efficiency.

Product performance

1. Specially designed drawing mechanism, plenum, heating oven, heat setting box, etc.;

2. All drives are driven by well-known brand servo motor, with large torque and stable output;

3, high performance temperature sensor, high precision test data;

4, can realize bidirectional synchronous stretching and custom bidirectional stretching;

5, the measurement and control system of the computer and friendly interface, easy to operate, more powerful function;

Guangzhou POTOP  Biaxial Stretcher according to the different tensile rate, can be divided into the following kinds:

1.Small 4 times  stretch power  Biaxial Stretcher

2. Lab Small 5 times  stretch power  Biaxial Stretcher

3. Lab Small 10 times  stretch power  Biaxial Stretcher

4. Lab Small 10 times  stretch power  Biaxial Stretcher(With Annealing oven)

5. Lab 4 times  Biaxial Stretcher (Vertical  style)

In addition, we have Lab MDO stretcher instrument, Guangzhou POTOP MDO stretching machine, with special design of stretching mechanism, plenum, heating oven, heat setting box, etc.; All drives are selected well-known brand servo motor drive, Dynamic, large torque, stable output; High performance temperature sensor, high precision of test data; Stretch roll spacing can be adjusted to achieve "zero spacing" stretch and reduce the shrinkage effect,Easy to operate, work can be more powerful!