Q:I do PA, PC, PP and other plastic raw materials can be used in the eye frame and lens it

In general, the lenses of PC need to be covered with scratch resistant protective films, which will be sufficient for better aging, and most lenses for children.

Q:How do plastic raw materials trade? How big is the market?

Plastic raw material industry chain is divided into upstream petrochemical enterprises, midstream large agents, distributors at all levels, and downstream terminal manufacturers.

Q:What are the common raw materials used in plastic bottles? What are the main features?

PP bottles are non-toxic, transparent, and have certain heat resistance and impact resistance. They are generally loaded with fruit juice and shampoo. They can be hot filled (very important for fruit juice drinks). They can not be sterilized by pressure cookers, and their transparency is poor.

Q:What is the plastic bag made of?

Method for identification of toxic plastic bags. The water detection method: put a plastic bag into the water, non-toxic can be surfaced, and poisonous won't rise; hand touch detection method: white or colorless transparent is non-toxic, the hand has a sense of lubrication, the surface like wax; color detection method: toxic haze or color yellow, red, black, feel sticky; jitter method: take a plastic bag shaking, crisp sound non-toxic; sound stuffy astringent toxic.

Q:PE plastic bellows raw material formula (PE and PP ratio, as well as other filling)?

The additives are mostly organic additives, and they are usually analyzed by infrared, nuclear magnetic resonance and mass spectrometry. Fillers are mostly calcium carbonate, kaolin and other fillers, play a role in strengthening and reducing costs, and can be qualitatively and quantitatively analyzed by thermogravimetric analysis and fluorescence spectroscopy. After sample pretreatment, a single component, for unknown components need to go through a variety of instruments integrated spectrum, the final reduction formula, get the whole component analysis report.

Q:Dissolve in 0.3 of the LDPE plastic raw materials what?

LLDPE, which was industrialized by Union Carbide in 1970s, represents a major change in polyethylene catalyst and process technology, which has significantly expanded the range of polyethylene products. LLDPE with coordination catalyst instead of free radical initiator, and with low cost low pressure gas phase polymerization reactor to replace the high cost, in a relatively short period of time, with its excellent performance and low cost, has replaced the LDPE in many areas. At present, LLDPE permeates almost all traditional polyethylene market, including film, molding, tubing and wire and cable.

Q:What can be added to the PP plastic material to prevent light transmission?

Join the black color on the line! Plastic is black to prevent light from passing through

Q:Can PE material be used as food grade plastic?

Yes, but the raw material suppliers have already divided the ingredients into food grade, and they will be used in non food occasions to contain substances harmful to the body

Q:What is the disposable transparent plastic cup?

PC: colorless transparent material, suitable for making instruments, small parts, insulation, transparent parts and impact parts.Transparent ABS, this material is expensive, in the field of decoration, packaging and other promising.

Q:What's the shell of the relay? What exactly is plastic?

It is by virtue of this characteristic of molding, the use of the first heating of the plastic flow, under pressure filled cavity, and then solidified into a shape and size of the product. Thermosetting resins are linear or branched before curing, forming a chemical bond between the molecular chains after curing, becoming a network of three degrees, not only without melting, but also insoluble in solvents. Bakelite, formaldehyde, melamine, formaldehyde, epoxy, unsaturated polyester and silicone plastics are all thermosetting plastics. Mainly used for heat insulation, abrasion resistance, insulation, high voltage resistance in the harsh environment of the use of plastic, mostly thermosetting plastic, most commonly used should be wok, pot handle and high and low voltage appliances.. Commonly used thermosetting plastics are phenolic resin, urea formaldehyde resin, melamine resin, unsaturated polyester resin, epoxy resin, silicone resin, polyurethane and so on