Manufacture of EPP foam durable non-toxic plastic folding chair for kids

EPP Furniture

Like expanded polystyrene (EPS) and expanded polyethylene (EPE), expanded polypropylene (EPP) is one of the “featherweights” among polymer foams. This is precisely the reason why, in addition to the best specific mechanical properties and impressive thermal insulation capabilities, the multifunctional particle foam beads are attracting attention above all due to their outstanding lightweight construction possibilities.

With the improvement of environmental protection requirements, many types of foamed plastics will be eliminated. As an emerging environmental protection material, epp materials have been applied in many fields, including the household industry. Epp stools, waist stools, sofas, and other products, these products have very good elasticity, and high comfort, and the strength of epp materials is relatively large, the weight is also very light, easy to move in the process of use, and not easy to damage.

First of all, EPP is more environmentally friendly and different from other materials. The molding process of this material is physical foaming, without the use of other chemical reagents. It can not only be degraded by light but also be non-toxic, odorless, non-corrosive, very environmentally friendly, and healthy.

Secondly, EPP has good anti-seismic, wear-resistant, thermal insulation, sound insulation performance, and high resilience, which can be used more safely as household materials. In addition, when decorating, molded EPP materials are more convenient to install, with better durability and a higher comprehensive performance-price ratio, which is the first choice for young people to decorate.

Epp material has other advantages in the use of household products. The environmental protection of epp material will not produce toxic substances, which is very important for the indoor use of household products. Moreover, epp household products have good flame retardancy to avoid fire. Epp particles are non-toxic and odorless, and will not cause harm to children.

The superior performance of Epp material makes it more and more applicable. With the improvement of environmental protection requirements, the use of epp material in the household industry will be more popular and applied to more products

Weihai Hanwell New Material Co.,LTD was established in 2020, as a member of Han Well Group with Qingdao Hanwell Hightech Plastic Co.,Ltd. With the 20 years development, now the factories cover an area of 100,000 square meters and the workshop is about 80,000 square meters, 50 production lines, the total investment is more than US dollars 50,000,000.

From the EPP raw material, EPP forming products, molded pulp products, therm forming products, plastic slip sheet, we have realized the industrial chain highly vertically integrated in every these industries. Meantime we have a lot of advanced machines from Germany, that improve the quality, reduce the cost, so we can provide competitive price and ensure the big order delivery on time.

With experience on working with the world-class customers from all over the world in the past years, our teams deal with a lot of important cases, our engineer team can help design per customers’ request. Besides this, our aim is to provide the comprehensive solution and help to achieve the constant development together.

As a responsible manufacturer, we work hard on developing new biodegradable and reused packaging, we always improve technology and reduce the energy consumption to achieve the goal of the carbon neutrality and protect our world. If you have packaging request, welcome to contact us, we will be very glad to help you.

EPP is a polypropylene foam consisting of expanded, mainly closed-cell foam particles. The EPP beads are filled with air and therefore particularly environmentally friendly(light weight). They guarantee a good joint tightness of the moulded parts and provide an excellent insulation and thermal insulation.

A high energy absorption（shock resistance）capacity combined with a very good recovery behaviour are characteristic properties of EPP in addition to the good chemical and temperature resistance. The low water absorption( water proof) due to the closed-cell structure and hydrophobic surface property, the easy cleaning of moulded parts, the good thermal insulation capacity as well as its environmental compatibility (= free of propellants and other chemical blowing agents) round off the property profile of EPP.

For the use as reusable packaging and reusable transport and insulation containers, the excellent material properties of EPP are used in an ideal form.

Processing

EPP is processed on automatic foaming machines which are designed for a steam chamber pressure of at least 5 bar. The foam particles are transported from a pressurized container via injectors into the mould. Since EPP does not contain any blowing agent, it is necessary to compress the foam particles in the mould. Welding of the EPP beads to a molded part is done by using water vapor as heat transfer medium. The demoulding is done by mechanical ejectors and/or compressed air. For dimensional stabilization, the molded parts must be tempered (= dried) at approx. 80°C after demolding.

Application areas

The specific product properties of EPP are innovative and unrivalled and make EPP a multifunctional material with almost unlimited design possibilities for a wide range of applications.

EPP proves itself in areas where strength at low weight, high stiffness or good thermal properties are required, such as

• Automobiles as energy-absorbing foam such as bumpers, side impact protection or for sun visors or neck supports
• As protective and reusable packaging for sensitive products
• Electronic engineering as well as heating, air conditioning and sanitary engineering as a multifunctional part with multiple uses (impact protection, thermal insulation)
• In safety relevant products such as child seats and bicycle helmets
• The toy industry or the design and furniture sector
• For the transport of temperature-sensitive foodstuffs from A to B