Plastic cups are made of pet, and the raw material of PET plastic cups is polyethylene terephthalate. We use this material in common mineral water bottles and beverage bottles in supermarkets, which is heat-resistant to 70℃ and only suitable for warm or frozen drinks. Let's take a look at the material of PET plastic cups.
Plastic cups made of PET 1 pet plastic cups cannot be used. Plastic bottles made of PET have been exposed to carcinogens before. Experts suggest that it is best to replace food-grade plastic products every two years in life. After a period of use, it depends on whether they are discolored, fragile and uneven inside. If there is, it should be replaced in time.
What material is the pet water cup?
1. pct for water cups is made of poly (hexamethylene terephthalate) resin. PCT resin is a semi-crystalline thermoplastic with high temperature resistance and a new product of polyester family. Industrialized by Hysmans Chemical Company of the United States on 1987, it has monopolized the production of PCT so far.
2. As a new variety of polyester family, PCT has similar properties to polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), and has the strength and toughness of PBT, but its heat resistance is better than that of PET.
3.PCT has high heat resistance, its continuous service temperature ranges from 130℃ to 150℃, and its deflection temperature ranges from 243℃ to 260℃, so it can be used as wave soldering plate and reflow soldering plate instead of heat-resistant PBT.
4. Although the heat resistance of 4.PCT is lower than that of polyphenylene sulfide (PPS), high-temperature liquid crystal polymer (LCPS) and high-temperature polyamide, it is higher than that of polyester such as medium-temperature liquid crystal polymer.
5. PCT has good toughness, thermal stability, processability, chemical resistance and low hygroscopicity, and has little effect on the mechanical properties, dimensional stability and processability of PCT under wet conditions. Therefore, PCT can compete with many polymers such as PPS, LCPS and high temperature polyamide.
What kinds of plastic cups are made of PET2?
1, pet plastic cup
The raw material of pet plastic cups is polyethylene terephthalate, which is commonly used in mineral water bottles and beverage bottles in supermarkets. The temperature resistance of pet is only 70℃, so it will deform when we pour hot water, and it will affect our health if we use it frequently.
2.HDPE plastic cup
The raw material of HDPE plastic cups is high-density polyethylene, which is often used in shampoo and shower gel at home. This material will deform at high temperature and is not suitable for pouring hot water.
3.pvc plastic cups
The raw material of pvc plastic cups is PVC, and PVC is basically used in water pipes at home. This material will emit harmful substances at high temperature and is not suitable for pouring hot water.
4.pp plastic cup
The raw material of pp plastic cup is polypropylene, and its temperature resistance can reach 1 10℃- 150℃. Bisphenol A (toxic substance) is a food-grade plastic with excellent safety performance, and it is also the mainstream material of milk bottles at present, which can be washed with hot water.
5, ps plastic cups
The raw material of ps plastic cup is polystyrene, which is used in our common barreled instant noodles. Although this material will not release harmful substances, it has poor heat resistance and is not suitable for pouring hot water into the microwave oven.
6, pc plastic cups
Pc material is very common in our life, and many cups are made of this material. Although the heat resistance of this material can reach 135℃, frequent use at high temperature will release bisphenol A, so it is not recommended to pour water for a long time.
7.tritan plastic cup
Tritan, also known as modified pvc, is the mainstream material of water cups at present. Its highest temperature resistance can reach 109℃, and bisphenol A will not be released when poured into boiling water.
8. PPSU plastic cups
PPSU is made of polyphenylene sulfone resin, which has excellent temperature resistance and stability, and the highest temperature resistance can reach 220℃. Therefore, it is widely used in baby bottles, and its performance is superior to PP. It is an excellent plastic material.
Is the plastic cup suitable for pouring hot water?
It can be seen from the above that hot water can be poured into plastic cups made of PP, pc, PPSU and tritan, but it is not recommended to pour hot water into cups made of PC for a long time, because in theory, bisphenol A will precipitate due to too frequent use, but as long as it does not exceed 100℃, it will be fine for normal use.
Plastic cup material PET3 plastic cup what material is safer?
1 and No.5 PP polypropylene plastic cups are relatively safe. Common plastic cups are 1 PET, 2 HDPE, 3 PVC, 4 PE, 5 PP, 6 PS, etc.
2.65438 +0 PET polyethylene terephthalate ordinary mineral water bottle and carbonated beverage bottle. Heat resistance to 70℃ is easy to deform, and substances harmful to human body are melted out. Plastic product 1 may release carcinogen DEHP after using 10 months.
3.2 HDPE high-density polyethylene common white medicine bottles, cleaning supplies, bath supplies. Don't use it as a drinking cup or a container for other things. If the cleaning is not thorough, don't recycle it.
No.4 and No.5 PP ordinary soybean milk bottles, sour milk bottles, fruit juice beverage bottles, microwave lunch boxes. With a melting point as high as 167℃, it is the only plastic box that can be put into a microwave oven and can be reused after careful cleaning.
PET and PETE are short for polyethylene terephthalate. In most countries, it is abbreviated as PET, and in some countries, it is abbreviated as PETE. Refers to polyethylene terephthalate, which is often used in mineral water bottles and carbonated beverage bottles.
1. Suggestion: Don't recycle hot water from beverage bottles.
2, use: heat resistance of 70℃, only suitable for warm or frozen drinks, high-temperature liquids, or heating, it is easy to deform, and harmful substances are dissolved. Moreover, scientists have found that after 1 plastic products are used 10 months, DEHP, a carcinogen, may be released, which is toxic to testicles.
3. Throw away the beverage bottle after use, and don't use it as a cup or a storage container to hold other items, so as not to cause health problems.