First, the identification method of pet double-sided tape
1. Smell it first. PET tastes different from ordinary plastic. Burn it with a lighter, and it will be very fragrant and comfortable (just burn a bottle and it will smell good). If PET contains other ingredients, it will smell pungent. You can't use a bottle containing SEBS.
2. Look at the burnt part. If it is too dark or drips oil quickly, most of it is abnormal melting point, which often happens in PET films.
3, wire drawing, when lit, pull the line on the lighter to see if the line is long, and then pull the line out to see if the line is rolled into a small circle. The more coils, the higher the melting point.
However, if it is a bottle tablet, it should not be a big problem. The key point is to distinguish whether it contains PVC, which is fatal to pets. First, take more samples and put them in a sunny place. PVC is light blue in the sun. If you fold it in half, there will be a white crease. The above is naked eye recognition, and the accuracy is limited, mainly relying on experience.
A more practical and better way is to buy an oven, adjust the temperature to 250 degrees and bake there for half an hour. If the goods contain PVC, there will be a lot of yellow spots on the surface; If the melting point is not enough, it will melt quickly.
In fact, there are many varieties of PET to be made. The broken PET films, pulp blocks, rolled films, etc. produced by foreign factories have different customer groups.
The identification of these goods strongly requires oven inspection. In particular, PET reels are very scarce in the whole market. Generally, films with a length of 80 to 120 cm and a thickness of 3 to 5 filaments are expensive (white and transparent).
Second, the introduction of pet double-sided tape
PET double-sided adhesive tape is also called PET tape or PET high temperature tape. It is made of PET and coated with acrylic adhesive on both sides. The color of adhesive tape is generally transparent black, and rare ones include green PET double-sided tape.
The common thickness specification is: 0.05-0.2MM, which has good dimensional stability, thermal stability, chemical stability, good initial viscosity and adhesion, easy die cutting, and good adhesion to plastics, rubber and nameplates; Can be applied to a wider temperature range and harsh environment; Long-term temperature resistance 100- 120℃, short-term temperature resistance can reach140-200℃;
Today, I recommend a special kind of double-sided adhesive, so how to identify this product? Do they have any features and characteristics? It can be found that this kind of adhesive tape has good dimensional stability, thermal stability and chemical stability, and its viscosity is relatively more prominent. It can be applied to a wider temperature range and harsh environment. On the other hand, considering that there are many sizes and specifications of similar double-sided tapes in the market, the quality is uneven, so when selecting qualified varieties, we'd better refer to the quality, appearance and color of the products and use common tools such as ovens to identify them.