What does PP5 represent in plastic materials?

PP5 indicates that this plastic product is made of polypropylene, which can be used repeatedly and can withstand high temperatures. The more common PP5 products in the general market are: various plastic products, some more advanced plastic tea sets.

Tableware. Polypropylene is a thermoplastic resin made from the polymerization of propylene.

According to the methyl arrangement, it can be divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene.

The methyl group is arranged on the same side of the molecular backbone called isometric polypropylene, if the methyl group is arranged in an orderly manner on both sides of the molecular backbone, it is called random polypropylene, and when the methyl group is alternately arranged on both sides of the molecular backbone, it is called interconventional polypropylene. Polypropylene resin produced in general industry.

The content of the isometric structure is about 95%, and the rest is random or inter-gauge polypropylene.

Among the plastic materials, PP5 means that the plastic products are made of polypropylene, which can be used repeatedly and can withstand high temperatures. Therefore, PP5 can be put into the microwave oven and will not produce poison at high temperatures.

The more common PP5 products are:

1. Various plastic products of Locks and Locks.

2. Some high-grade plastic tea sets, tableware, and some beverage bottles such as Weiquan daily C (rarely, most of them are No. 1 and cannot be used repeatedly).

Note: Most of the PP5 logos are printed on the bottom of the container, forming a circular triangle with numbers written on them.

Plastic grade 5 represents: polypropylene - PP (can withstand temperatures above 100 degrees) such as: microwave oven lunch box.

Plastic grade 7 stands for: other plastics - such as: kettles, cups, baby bottles.

Summary. What do grades 1 to 7 of plastics represent? The difference between plastic PP5 and PP6:

Grades 1-7 of plastics represent different materials. 1. Polyester, PET (PET bottle), such as: mineral water bottles, carbonated beverage bottles 2, high-density polyethylene, HDPE, such as:

Cleaning products, bath products 3, PVC, such as: some decorative materials 4, low-density polyethylene, LDPE, such as: plastic wrap, plastic film, etc. 5, polypropylene, PP (can withstand temperatures above 100 degrees) such as:

Microwave oven lunch box 6, polystyrene, ps (heat-resistant 60-70 degrees, hot drinks will produce toxins, and styrene will be released when burning), such as: bowl instant noodle box, fast food box 7, other plastics**, others, such as: kettle, cup, bottle.

What do grades 1 to 7 of plastics represent? The difference between plastic PP5 and PP6:

What do grades 1 to 7 of plastics represent? The difference between plastic PP5 and PP6: Grades 1-7 of plastic represent different materials.

1. Polyester, PET (PET bottle), such as: mineral water bottles, carbonated beverage bottles 2, high-density polyethylene, HDPE, such as: cleaning supplies, bath products 3, PVC, such as:

Some decorative materials 4, low-density polyethylene, LDPE, such as: plastic wrap, plastic film, etc. 5, polypropylene, PP (can withstand temperatures above 100 degrees) such as: microwave oven lunch box 6, polystyrene, ps (heat resistant 60-70 degrees, hot drinks will produce toxins, and styrene will be released when burning), such as:

Bowls of instant noodle boxes, fast food boxes7, other plastics**, others, such as: kettles, cups, feeding bottles.

There are 7 grades of plastic, namely: 1 grade PETE, 2 grade HDPE, 3 grade PVC, 4 grade LDPE, 5 grade PP, 6 grade PS, and 7 grade PC. Different plastic grades have different uses and application scenarios.

Class 1 plastics are suitable for mineral water bottles or carbonated beverage bottles. Level 2 is suitable for making common white medicine bottles such as cleaning products and bath products. Grade 3 plastic is suitable for making raincoats, etc., but it cannot be used to pack food.

Grade 4 is suitable for making plastic wrap, but grade 4 will have hot melt when it encounters high temperatures above 110 degrees Celsius. Grade 5 plastic is suitable for making special lunch boxes for microwave ovens. Grade 6 plastic is suitable for making bowl-filled instant noodle boxes.

Grade 7 plastic is suitable for baby bottles and kettles.

PP5 indicates that this plastic product is made of polypropylene, which can be used repeatedly and can withstand high temperatures.

The rest of the pp material logo:

"01" - PET (polyethylene terephthalate).

Mineral water bottles and carbonated drink bottles are made of this material.

Beverage bottles can not be recycled to fill hot water, this material is heat-resistant to 70, only suitable for warm drinks or frozen drinks, high-temperature liquid or heating is easy to deform, there are harmful substances to the human body dissolution.

"02" — HDPE (High Density Polyethylene).

Plastic containers for cleaning products and bath products, and most of the plastic bags currently used in supermarkets and shopping malls are made of this material, which can withstand 110 high temperatures, and plastic bags for food can be used to hold food. Plastic containers containing cleaning products and bath products can be reused after careful cleaning, but these containers are usually not easy to clean, leaving the original cleaning products, becoming a hotbed of bacteria, not cleaning thoroughly, and the best is not to recycle.

"03" — PVC (polyvinyl chloride).

The toxic and harmful substances that plastic products of this material are prone to come from two aspects, one is the monomolecular vinyl chloride that is not completely polymerized in the production process, and the other is the harmful substances in the plasticizer. These two substances are easy to precipitate when exposed to high temperatures and oils, and the poisons are easy to cause cancer after entering the human body with the food lumps. At present, containers of this material are rarely used for packaging food.

If in use, never allow it to be heated.

PP polypropylene.

PP5 is PP polypropylene, and its circular number is 5. Common bean sedan syrup bottles, yogurt bottles, fruit juice drink bottles, microwave oven lunch boxes. With a high melting point of 167, it is the only plastic case that can be put in the microwave oven and can be reused after careful cleaning.

It should be noted that some microwave oven lunch boxes are made of No. 5 PP, but the lid is made of No. 1 PE, because PE cannot withstand high temperatures, so it cannot be put into the microwave oven with the box.

The number at the bottom of the cup indicates the meaning: fierce preparation.

PET polyethylene terephthalate. Common mineral water bottles, carbonated drink bottles, etc. Heat-resistant to 70 easy to deform, there are harmful substances to the human body dissolution.

After 10 months of use, the No. 1 plastic product may release the carcinogen DEHP. Do not put it in the car to bask in the sun, and do not fill it with alcohol, oil and other substances.

HDPE high-density polyethylene. Common white medicine bottles, cleaning products, bath products. Do not use it as a drinking glass or as a storage container for other items. Do not recycle if you do not clean thoroughly.

PVC polyvinyl chloride. Common raincoats, building materials, plastic films, plastic boxes, etc. The plasticity is excellent and the price is cheap, so it is very common to use, and it can only be used to destroy the heat resistance 81

At high temperatures, it is easy to produce undesirable substances, and it is rarely used in food packaging. It is difficult to clean and easy to remain, so do not recycle. Do not buy drinks if they are contained.

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Pro-PP5 plastic is food grade, PP5 material is food grade, this material is SGS certified in the United States, non-toxic and harmless to the human body, widely used in baby bottle production, can be put into the refrigerator frozen. PP5 plastic is a food-grade PP plastic, that is, polypropylene, which is a polymer made of propylene through polyaddition reaction, with a temperature range of -30 140, and is the only one that can enter the microwave oven. It can also be used in the production of food and pharmaceutical packaging, such as food special plastic bags, food plastic boxes, food straws, etc.

PP plastic, referred to as PP, is a colorless, odorless, non-toxic, translucent solid tung burning substance, with thermoplasticity, light specific gravity, chemical corrosion resistance and other characteristics. Generally speaking, the one marked with No. 5 or PP is used as a microwave tableware, which can be used in the microwave oven without harm. Therefore, it can also be reused after cleaning, and has high environmental performance.

However, special attention should be paid to some microwave oven lunch boxes, the box body is indeed made of No. 5 PP, but the box lid is made of No. 1 PE, because PE can not withstand high temperatures, so it cannot be put into the microwave oven together with the box, so for the sake of insurance, the lid is removed before the container is put into the microwave oven. Hope mine can help you <>

Do you have any other questions?

Be. PP5 material is food grade, this material has passed SGS certification in the United States, non-toxic and harmless to the human body, widely used in the production of baby bottles, can be put in the refrigerator frozen.

PP5 has outstanding chemical resistance, which can be used to make boxes and bottles, etc., PP5 plastic products are made of polypropylene, which can be used repeatedly, and are also resistant to high temperatures, and are the only plastic that can be heated in the microwave oven, so they can also be scalded with boiling water.

PP5 is the only microwave-safe plastic box available, with a melting point of up to 167, which can be reused after careful cleaning. It is commonly found in soy milk bottles, yogurt bottles, and microwave oven lunch boxes, but some microwave oven lunch boxes are made of No. 5 PP, but the lid is made of No. 1 PE, so they cannot be put into the microwave oven together with the box.

However, it is best to only use it to heat the soup, and it is not advisable to heat the oily food for a long time, because the boiling point of the oil is above 200.