HDPE is one of the most important raw materials for HDPE plastic squeeze bottles. Because HDPE plastic squeeze bottles have a very wide range of application scenarios, they have received more and more attention from various industries. This article will specifically introduce the characteristics and advantages of HDPE plastic squeeze bottles.
HDPE plastic squeeze bottle refers to a plastic bottle produced by blow molding and injection molding using HDPE (high-density polyethylene) as the main raw material. Its characteristics are non-toxic and tasteless. It has good hardness and chemical stability. It is insoluble in any organic solvents at room temperature. It is resistant to corrosion by acids, alkalis, and various salts. Its film has low permeability to water vapor and air. Therefore, in the chemical field, you can often see HDPE plastic squeeze bottles.
HDPE is a kind of thermoplastic resin with high crystallinity and non-polarity. The original HDPE has a milky white appearance and a certain degree of translucency in a thin section. It has excellent resistance to most of the life and industrial chemicals. The polymer does not absorb moisture and has good water vapor resistance, and can be used for packaging purposes.
HDPE has a lighter specific gravity than water, with a specific gravity of 0.941~0.960, soft and tough, but slightly harder than LDPE and slightly stretchable. At low temperatures, it can still maintain a certain degree of toughness. Surface hardness, tensile strength, rigidity, and other mechanical strength are higher than LDPE, close to PP, tougher than PP, but the surface finish is not as good as PP.
Generally, the melting point of HDPE is 142℃, the decomposition temperature is 300℃, and the adjustable range of injection temperature is relatively large. When injection molding, the general use temperature is 180℃-230℃. Because it is olefin plastic, it does not absorb water. During production, it does not need to be dried, but for product quality, it can be dried at 60℃ for 1hr to drain the floating water. The melt viscosity of polyethylene is large, the flow length ratio is small, and thin-walled products may lack glue. Therefore, the gate and runner are relatively large. The product is easy to be charged with static electricity, the shrinkage rate is 16‰; the overflow value is 0.05mm.
As one of the important general-purpose plastics, HDPE has the characteristics of non-toxic and cheap, lightweight, excellent moisture resistance, good chemical stability, and easy forming and processing. It also provides an excellent moisture-proof layer. And colored HDPE bottles have enhanced fracture resistance.
With the excellent internal design, R&D, and testing, Sanle can customize the HDPE plastic squeeze bottle you need for function, style, or color (including decoration, labeling, and printing). If you want to know more about plastic squeeze bottles after reading the above, you can get a comprehensive solution by contacting us.
As a professional manufacturer of plastic squeeze bottles, we always insist on putting customer needs first. We have an experienced production team and a strict quality inspection system, focusing on the production of products of various shapes, specifications, and functions, and fully control the quality of the products. At the same time, we will also provide corresponding customized services and effective solutions according to customer needs. If you want to buy our high-quality plastic squeeze bottles, please contact us immediately!