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Comprehensive Processing Guide for Injection Molding: What are thermoplastics ?

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Thermoplastics, also known as thermoplastic polymers, are plastics that have the property of softening on heating and hardening on cooling Thermoplastics, also known as thermoplastic polymers, are plastics that soften on heating and harden on cooling. When heated, these plastics soften and become fluid, and return to a solid state when cooled When heated, these plastics soften and become fluid, and return to a solid state when cooled. This phenomenon can be repeated alternately, so thermoplastics can be recycled The following are some examples of thermoplastics that can be recycled.


Thermoplastics in the resin molecular chain are linear or with a branched structure, the molecular chain between the chemical bond is not generated, the heating of the softening flow, cooling and hardening process is a physical change. The process of softening and flowing on heating and hardening on cooling is a physical change.


There are several types of thermoplastics, each with unique properties that make them particularly useful for certain applications and budgetary requirements. Thermoplastics can be highly resistant to extreme temperatures, corrosive materials or environments.

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Classification of Thermoplastic Materials

Acrylic (Acrylic)
Acrylonitrile Butadiene Styrene (ABS)
Polyamide (PA)
Polylactic Acid (PLA)
Polycarbonate (PC)
Polyetheretherketone (PEEK)
Polyethylene (PE)
Polypropylene (PP)
Polyvinyl Chloride (PVC)
High Impact Polystyrene (HIPS)

Let's continue to learn more about the above material .....

Plastic Parts on Wheels Acrylonitrile butadiene styrene (ABS) combines the three monomers in its name to create an opaque, lightweight, and versatile plastic. Molded at high temperatures for a glossy, heat-resistant finish, and at low temperatures for a strong, impact-resistant finish, ABS is used for drainpipes, small kitchen appliances, automotive parts, and Legos.

Polyamide (PA / Nylon) is not only very strong, but also highly resistant to impact, abrasion and harsh chemicals. It is commonly used in everything from automotive parts and industrial components to medical equipment, clothing, footwear and sports equipment.

Polycarbonate (PC) is transparent and extremely impact-resistant, so it is used in DVDs, eyeglass lenses, cell phone covers, automotive dashboard gauges, medical equipment and protective partitions.

Polyethylene (PE) is commonly used in high-density (HDPE) and low-density (LDPE) variants for products ranging from plastic bags and films to beverage containers.

High Impact Polystyrene (HIPS) is polystyrene with rubber added for strength. It is an inexpensive option for applications requiring rigidity and dimensional strength. FDA food-grade compliant variants are available, as well as high-gloss and flame-retardant options.

Polypropylene (PP) is very tough and resists heat, pressure, impact, harsh chemicals and water. It is food-safe, so it can be used to make plastic utensils, but can also be used for clothing, carpeting and car batteries.


Properties of thermoplastics

  • Reversibility: Thermoplastic materials soften and become fluid when heated and return to a solid state when cooled. When cooled, they return to a solid state. This phenomenon can be repeated alternately, so thermoplastic materials can be recycled. Reversible: A thermoplastic material softens when heated and becomes a fluid when cooled.

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  • Physical changes: thermoplastic materials in the resin molecular chain are linear or with the structure of the branched chain, the molecular chain between the chemical bond is not generated, the heating of the softening flow, cooling hardening process is a physical change. The process of softening and flowing on heating and hardening on cooling is a physical change.

  • Classification: Thermoplastic materials can be divided into three categories: general-purpose plastics, general-purpose engineering plastics, high-performance engineering plastics and so on. .

  • Excellent insulating properties: Thermoplastic materials have excellent insulating properties. .

  • Corrosion resistance: thermoplastic materials have outstanding resistance to corrosion and media. .

  • Heat and humidity resistance: thermoplastic materials have good heat and humidity resistance, high retention of performance in hot and humid conditions. The performance retention rate is high.

  • Flame retardant properties: thermoplastic materials have outstanding flame retardant properties, low smoke, low toxicity, low heat release rate. Low smoke, low toxicity, and low heat release rate.

  • Service temperature: The service temperature of thermoplastic materials is close to the glass transition temperature. The temperature of the thermoplastic material is close to the glass transition temperature.


Industry Applications of Thermoplastics

  • Packaging materials: thermoplastics such as polyethylene (PE) and polypropylene (PP), which are mainly used in the manufacture of films for packaging, agricultural films, cling film, etc. Packaging materials: thermoplastics such as polyethylene (PE) and polypropylene (PP), which are mainly used to make packaging films, agricultural films, cling film, etc.

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  • Electronics and Electrical: Thermoplastics such as polycarbonate (PC) and polymethylmethacrylate (PMMA) are used in a wide range of electronic and electrical applications due to their good electrical insulation and dimensional stability. They are widely used in electronic and electrical applications due to their good electrical insulation properties and dimensional stability.

  • Automotive industry: Thermoplastics such as polysulfone are widely used in the automotive industry due to their good heat resistance and dimensional stability. .

  • Household products: Thermoplastics such as polymethylmethacrylate (PMMA) are widely used in the manufacture of household products due to their excellent transparency and aesthetics. The thermoplastics such as PMMA are widely used in the manufacture of household goods due to their excellent transparency and aesthetic properties.

  • Pharmaceuticals, optics, sports and construction: Thermoplastics are widely used in the pharmaceuticals, optics, sports and construction industries due to their good physical and chemical properties. Thermoplastics are widely used in the pharmaceutical, optical, sports and construction industries.


Summarize


Aligning with your injection molding partner to select the best resin early in the design of the manufacturability process is critical to the production success of the part. A good starting point is to have a general understanding of the major resin types. Contact us to begin our project fabrication.


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