TPU PC ABS PP? How to choose a mobile phone plastic case?

TPU material protection case

Advantages: good protection, anti-fall, good hand feeling, easy to take, good elasticity

Disadvantages: easy to dirty

TPU is a plastic material that can be softened or changed repeatedly under a certain heat, called soft plastic. Because of the high quality and low price of this kind of raw materials, many manufacturers use this raw material to make shells.

TPU (polyurethane) raw materials

Madodo iPhone6 ​​transparent protective case

In the early parts field, TPU material was almost popular in all brands of mobile phones at that time, and the coverage was unprecedented. The mobile phone case at that time was soft, wrapping the phone from the back to the side, and the all-round protection made it even more Many users like this kind of mobile phone case, but consumers who have used this mobile phone case have encountered this phenomenon, that is, due to poor sealing, after using the mobile phone case, there is too much dirt accumulation inside the mobile phone case. .

The biggest advantage of the TPU case is the resistance to fall.

TPU phone case can be very crystal clear (picture from Jingdong)

Nowadays, the mobile phone case of TPU material has gradually faded out of our sight. However, there are a few manufacturers in the market who insist on the mobile phone case of TPU material. The shock absorption of this material is good, and the medium is soft and not easy to be deformed, and the practicality is relatively strong. However, due to the majority of waste recycling products and piracy, the current market is more tragic.

PC material protection case

Advantages: good transparency, strong hardness, anti-fall, thin and light

Disadvantages: not scratch resistant, not strong, easy to break

PC, the Chinese name for polycarbonate, is a colorless, transparent, amorphous thermoplastic. PC plastic has good toughness and good transparency. Pure PC plastic has pure transparency, and also has translucent black transparent blue and other colors. PC can also be made very thin. Some of the thinner covers are said to be Up to 0.5mm, boasting that 0.5mm or less is basically PP material is not PC material.

PC material phone case

PC plastic if you still feel strange, then the author gives another example, this is the four-wheel drive car shell, chassis, etc. we used to play, are PC plastic, this material is widely used in toys, model circles, mainly Because the transformation type is strong, it can be used as a "glue" to bond with nitro thinner, but this commonly used material is also hard.

The PC case is very tough, but it is still a hard shell.

PC mobile phone case is generally sold as "ultra-thin" (Note: plastic shell can not be processed by CNC, it is metal material process)

The Apple phone case made of PC material can be said to be the representative of the hard phone case, and the matte texture of the PC case is the most popular type, because the hand feel is very good, the matte texture looks more than the average phone case. High-grade, anti-slip performance is also better. This kind of matte texture of the Apple mobile phone case is realized by the printing technology, so the surface of the mobile phone case is matt surface with a fine matte feel. As long as you use it in your normal use, you don't have to hit it with sharp objects such as a knife. This kind of matte-quality Apple mobile phone case will not leave any trace. Chemical materials such as non-exposure and non-contact with strong acids and alkalis will not fade. And this kind of mobile phone shell is very cost-effective, it is the first choice for fruit powder to buy mobile phone protective case for the first time.

Silicone case

Advantages: good protection, anti-fall, good hand feeling, easy to take, not easy to wear.

Disadvantages: a little thick, heat is not strong, it is recommended not to use in summer, easy to ash.

Supplement: Silica is generally cleaned with alcohol.

Most of the fruit powders that buy mobile phone cases for the first time are oriented to soft phone cases, and 60%-80% of people will choose to buy soft shells. In the category of soft protective sleeves, the key word we see most often is “silicone”. In fact, the “silicone phone case” made entirely of silica gel or made of high-quality high-purity silica gel is not much. The mobile phone case has a very comfortable feel and has a good performance in the anti-slip function. However, the disadvantage of the silicone mobile phone case is that it is "too soft", it is easy to be soiled, and it is not easy to clean. In addition, if the silicone phone case is aging, the color will gradually become darker, which will affect your "love crazy" beauty.

iPhone 5c Silicone Case

Silicone case

Silicone alias: Silicone rubber is a highly active adsorbent material, which is an amorphous substance with a chemical formula of mSiO2·nH2O. It is insoluble in water and any solvent, non-toxic and tasteless, chemically stable, and does not react with any substance except strong alkali and hydrofluoric acid. Various types of silica gels have different microporous structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many other similar materials that are difficult to replace: high adsorption performance, good thermal stability, chemical stability, and high mechanical strength.

PP material phone case

advantage:

1. Anti-hygroscopicity, acid and alkali corrosion resistance, and solubility resistance

2, non-toxic heat-resistant, the temperature range of use -30 ° C ~ 140 ° C

3, has excellent electrical insulation properties and chemical stability

4, low cost, fast cooling, production process requirements are not high

Disadvantages:

1, easy to deform and aging, resulting in shrinkage holes, dents, etc.

2, the degree of fit is low, can not be closely combined with the mobile phone

PP plastic (polypropylene) is another excellent resin developed after nylon. As a semi-crystalline material, it has high density, no side chain, easy bending, low hygroscopicity and high frequency insulation. It is non-toxic and heat resistant. The fork in our common barreled instant noodles is made of PP material. Therefore, it will not emit toxic substances when placed in boiling water, and it will not harm the human body. The biggest feature of the PP mobile phone case is that it can be made very thin and light, the thinnest can reach 0.3mm, and the PC material is very difficult to achieve 0.35mm, but the PP material can be as thin as 0.3mm.

Abs material phone case

advantage:

1: The output is large, and Gu will not face the situation of out of stock.

2: Poor flammability, not dangerous

3: Relative wear resistance

Disadvantages:

1: Poor corrosion resistance

2: Poor toughness, not broken

ABS raw materials

ABS material is relatively harder. There is very little mobile phone case made of pure ABS material. The heat resistance and impact resistance are not as good as PC material, but ABS material has great fluidity, coloring, surface coating and plating performance. Advantage. Now there is a new process called in-mold injection molding. At present, it is basically made of ABS plastic, and the surface material is PET. The advantage of this process is that the surface of the casing can be made richer in pattern, similar to the transfer process, but more delicate than the transfer pattern, the details are more perfect, the texture is very strong, and it looks very tasteful.