Plastic Materials Guide

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Guide of Bottle Plastic Materials

Polycarbonate(PC)

Polycarbonate is an organic combination of rigidity and toughness. Its light transmittance is about 90%, which is close to glass but lighter than glass. It is not fragile and easy to process.

Without adding any flame retardant, pure polycarbonate can pass a certain level of fire test. If supplemented with a small amount of flame retardant, polycarbonate can reach the most oriented fire standard.

The maximum use temperature of polycarbonate can reach 120 degrees to 130 degrees. Polycarbonate (PC for short) is a nested molecular polymer containing carbonate groups in the molecular chain.

According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the lower mechanical properties of aliphatic and aliphatic-aromatic polycarbonate limits its application in engineering plastics.

Material Source

There are many polycarbonate suppliers all over the world, such as Bayer, GE, Shanghai Covestro, Dow Chemical, Mitsubishi, Teijin, Taiwan Qigen, Idemitsu, etc.

Material Costs

The market price is 19400-30150 yuan / ton (average price), depending on the market and brand brands, there will be fluctuations.

Material Characteristics

High strength, low forming shrinkage, poor fatigue resistance, odorless and odorless, harmless to the human body, various processing methods, perfect clarity, adjustable hardness, high temperature resistance, and recyclable.

Processing Methods

PC can be injection molded, extruded, molded, blow molded, thermoformed, printed, bonded, coated, and machined. The most important processing method is injection molding.

Cosmetic Packaging Material Application

PC plastic has the characteristics of transparency and solid material, so it is often used as packaging materials such as transparent cosmetic boxes, outer covers, and outer covers.

Sustainable Development

PC can be dissolved and used repeatedly. The recyclable grade of PC is 7.

Polytheylene Terephthalate(PET)

From carpets on the ground to cosmetics for women, PET is everywhere in our lives. Purity, toughness, this is the biggest characteristic of PET, which is the most common but also the most versatile, which makes it a material used in millions of products.

A part of the polyester polyester material family like PET, including PBT and PETG, have the characteristics of pure crystals, and they are resistant to water and carbon dioxide, which means that its hygiene and safety are very good, which also makes them large-scale Used in cosmetic container packaging, firstly, it can prevent the deterioration of raw materials from the function, and secondly, it can show the different cosmetics incisively and vividly.

Material Source

There are many PET suppliers around the world, such as Dow DuPont, South Korea SK, Taiwan Nanya, etc.

Material Costs

The market price is 7900-8150 yuan/ton (average price), depending on market conditions, there will be an increase.

Material Characteristics

High strength, good transparency, non-toxic, anti-permeation, light weight, perfect chemical resistance, dimensional stability, durable and firm, cheap, good impact resistance, recyclable.

Processing Methods

Like other thermoplastics, PET can be used for injection molding, extrusion, blow coating, bonding, machining, electroplating, electroplating, vacuum metallization, and printing.

Cosmetic Packaging Material Application

Main and auxiliary packaging materials for cosmetics such as PET bottles, thick-walled PET bottles, PET shells (lipstick tubes), PET outer caps (bottle caps), PET blister boxes, PET shrink film PET packing tapes, etc.

Sustainable Development

PET can be said to be one of the most recycled plastic materials, because cities produce a large number of waste plastic bottles every day, which are almost the main source of PET recycling. As for recycled products, from carpets, fibers, film rolls, to pillow fillers, clothing, etc., applications can be described as wide.

Polypropylene(PP)

PP is a thermoplastic resin made by polymerization of propylene. Divided into isotactic according to the arrangement position

There are three types of polypropylene, atactic polypropylene and syndiotactic polypropylene. The comprehensive performance of PP is better than that of PE. PP products have light weight, good toughness, and good chemical resistance.

The shortcomings of PP are low size, insufficient rigidity, poor weather resistance, and easy to produce “copper damage”. It has post-shrinkage phenomenon. After demolding, it is easy to age, become brittle and easy to deform.

Material Source

There are many PP suppliers in the world, and the top rankings are Lyondell Basel, Sinopec, SABIC, PetroChina, Brazil Brasker, Indian Trust Industries, Abu Dhabi International Petroleum Investment Corporation, Total Petrochemical, Exxon Mobil, Formosa Plastics Group.

Material Costs

The market price is 9600-10000 yuan/ton (average price), depending on the market, brand and brand, there will be fluctuations.

Material Characteristics

Various processing methods, perfect bending ability, food grade, high temperature resistance, good firmness, can be combined with many materials, cheap, good chemical resistance, recyclable.

Processing Methods

PP Wang material is a typical daily-use plastic, which can be processed through a wide range of processes, such as injection molding, thermocompression molding, foam molding, etc.

Cosmetic Packaging Material Application

PP material is widely used in cosmetic packaging materials, mainly plastic bottles, bottle caps, cream bottles made of PP material.

Sustainable Development

PP is one of the most recycled plastic materials, and the recyclable grade of PP is 5.

General Purpose Polystyrene(PS)

PS plastic refers to a type of plastic that includes styrene groups in the macromolecular chain, including styrene and its copolymers. It is soluble in aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic ketones and esters, but only in acetone.

Specific varieties include ordinary polystyrene (GPPS), high impact polystyrene (HPS), expandable polystyrene (EPS) and metallocene polystyrene (SPS).

Material Source

There are many sources of PS. Domestic suppliers mainly include Shanghai Secco, Ningbo Taihua, Zhenjiang Chimei, and Yangzi BASF.

Material Costs

The market price is 11,700-12,400 yuan/ton (average price), depending on the market, brand and brand, there will be fluctuations.

Material Characteristics

Various processing methods, high brittleness, fragility, perfect crystal transparency, good hardness, low shrinkage, and recyclable.

Processing Methods

Polystyrene has good fluidity, good processing properties, easy coloring, and good dimensional stability. It can be processed into various parts by injection molding, extrusion, blow molding, foaming, thermoforming, bonding, coating, welding, machining, printing and other methods, especially suitable for injection molding.

Cosmetic Packaging Material Application

Due to the transparency and brittleness of PS and its low price, it is widely used in cosmetic packaging materials, such as cream bottles, lotion bottles, lip gloss bottles, eye shadow boxes, and sub-packaging boxes made of PS materials.

Sustainable Development

PS can be said to be one of the most recycled plastic materials, and its recyclable grade is 6.

Polyethylene(PE)

There are many members of the PE family. According to its properties, silver is divided into UHMWPE, HDPE, MDPE, LDPE, LDPE, modified polyethylene, and ethylene copolymers.

Material Source

There are many PE suppliers all over the world, such as Sinopec, Dow Chemical, Eastman Asahi Kasei, Atofina, Chevron-Phillips and other companies.

Material Costs

The market price is 9600-10350 yuan/ton (average price), depending on the market, brand, and brand, there will be fluctuations.

Material Characteristics

Various processing methods, smooth surface, low friction, perfect chemical resistance, strong and tough, easy to be made into various colors, and recyclable.

Processing Methods

It can be processed by blow molding, extrusion, injection molding and other methods. In order to improve the stability of polyethylene to ultraviolet rays and oxidation, and to improve processing and use performance, a small amount of plastic additives needs to be added.

Cosmetic Packaging Material Application

In the application field of cosmetic packaging materials, PE materials are mainly used in PE hoses, PE bottles, PE bottle caps, PE shrink films, etc.

Sustainable Development

PE is one of the most recycled plastic materials. It can be recycled. This material itself is very difficult to biodegrade. The recyclable grade of HDPE is 2. The recyclable grade of LDPE is 4.

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