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How much is plastic PP5 resistant to cold?
- Ordinary homopolymer PP has higher heat resistance, but when it reaches -20 degrees of low temperature, it will not stand, easy to brittle.s
PC plastic can be welded with any plastic electrode
- General PC plastic, our pipe is the use of PC dedicated glue bondings
Why plastic is not environmentally friendly?
- Plastics burn easily and produce poisonous gases when they burn. For example, toluene combustion produces a small amount of polystyrene, this substance can cause blindness, vomiting and other symptoms of inhalation, PVC combustion will produce toxic gases, hydrogen chloride in combustion, is a high temperature environment, will lead to plastic decomposition of toxic components, such as benzene etc..s
Plastic molding is what to do, how the process?
- The choice of plastic molding is mainly determined by the type of plastic (thermoplastic or thermosetting), the starting form, and the shape and size of the product. The commonly used methods for processing thermoplastics are extrusion, injection molding, calendering, blow molding and thermoforming. Thermosetting plastics are generally molded, delivered and molded by injection molding. The plastic molding is various forms (such as powder, granules, solution and dispersion) of plastic products or parts required for the shape of. As many as 30 kinds of molding method. Lamination, molding and thermoforming are the processes of forming plastics on a flat surface. The plastic processing method can be used for rubber processing. In addition, there are liquid monomers or polymers as raw materials such as casting. In these methods, extrusion and injection molding are the most widely used and the most basic molding methods.s
How is the recycling of plastic bottles handled?
- The properties of polyethylene vary depending on the molecular structure and density.Mainly used in the manufacture of films, containers, pipes, monofilament, wires, cables, daily necessities, etc., and can be used as television, radar and other high-frequency insulation materials.s
Plastic shoes taste great, is it harmful?
- But if the smell of plastic shoes is too strong and smells long, there will be smoke and dizziness, which is likely to contain substances harmful to human body.s
What is the difference between the glue and rubber plastic products? What are the advantages and disadvantages?
- General respectively have more toughness, were not resistant to high temperature, low melting point, the melting point of 80 degrees, less elastic, fragile. High temperature resistant glue, the melting point of 120 degrees, with good elasticity. The same thickness, soft as glue.s
Standard for classification of fire protection in plastic products
- A sample of less than 3 mm thick, burning at less than 70 mm per minute, or extinguished before the 100 mm mark.s
What is a rubber tree
- Rubber trees, deciduous trees, have milky sap. It requires average annual rainfall of 1150 to 2500 mm, but rubber trees should not be planted in areas of low humidity. Suitable for...
Frozen pipes what to do
- If the supply line of pipes are frozen, you can flush the toilet once and use the water already stored inside the tank. The frozen pipe prevents fresh water from flowing into the t...
what do you do when your pipes freeze
- Frozen pipes cause millions of dollars of damage across the United States each year. The sad part -- or the good news, depending on how you look it -- is that frozen pipes are almo...
What is natural rubber
- Natural rubber is commonly referred to as Brazil Hevea.It has been found in more than 2000 kinds of plants with plastic,such as rubber, cassava, rubber America, India fig, Africa a...
What are pipes
- Pipes are used for Underground Water Supply Lines.Exposed to moisture and prone to accidental shovel blows, buried water lines must be made of materials that resist both deteriorat...