Doors and windows sealed system filled

Seal in the design of production formula, adding filler can produce the following effects:
(1) improve the sealing of the dimensional stability, heat resistance, weather resistance and have a reinforcing effect. metal security seal
(2) regulate seal material hardness, weight loss, stretching 〖HJ * 4/9〗 energies.
(3) adjust the melt flow properties and extrusion processability. 
(4) reduce the material cost.
Elected to use filler should pay attention to:
(1) In the PVC and rubber materials in order to improve the dispersibility of times and to increase the dispersibility of the filler and the resin filler cooperation with a key, and activation treatment of the filler.
(2) plasticizer consumption.
(3) to heat and light stability.
(4) color and luster.
(5) on the processing performance.
Can be added in the rubber seal packing types, many specifications, such as calcium carbonate, carbon black, white carbon black, clay, talc, kaolin, etc., can be considered optional.
PVC can be divided into soft PVC and rigid PVC. Rigid PVC market which accounts for about 2/3, soft PVC and 1/3. Soft PVC is generally used for floors, ceilings and leather surface, but because of soft PVC containing softener (which is soft PVC and rigid PVC distinction), is easy to become brittle and difficult to preserve, so its use has been limited. Hard PVC free softener, so good flexibility, easy molding, hard brittle, non-toxic pollution, save a long time, so it has great development and application value. Below are referred to PVC. PVC is essentially a vacuum plastic film for packaging various types of panel surface, it is also known as the decorative film, with film, used building materials, packaging, pharmaceutical and many other industries. Building materials industry accounted for the largest proportion, 60%, followed by the packaging industry, there are a number of other small-scale applications in the industry.
PVC is PVC, bright color, corrosion-resistant, durable, due to the increase of the manufacturing process plasticizers, anti-aging agent of some toxic auxiliary materials, so its products are generally not stored food and medicine.indicative seal