By using a low cost and abundantly available renewable resource we have been able to achieve our main goal: to launch a highly competitive, biodegradable polymer.
This sounds very promising, though still we are not satisfied. We continue working on the possibilities to increase the competitiveness of Solanyl and moreover to increase the number of applications which is currently possible with existing materials. Solanyl enables you to create a real sustainable solution. We want to offer you the properties you need.
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Properties
Tell us what you need and we will try to find a grade which is closest to your request. Solanyl® is a diverse material and can be tailor-made if needed. Some general properties can be mentioned. Solanyl is fully biodegradable as it is based purely on natural and renewable resources. Mechanical properties are roughly in the same order of magnitude of PE or PS. Untreated Solanyl is somewhat sensitive to water. We can reduce water sensitivity if this does not coincide with your application.
The rate of degradation is also adjustable. In some cases rapid degradation is required and in others not. There are also Solanyl grades available for controlled release purposes of active ingredients (like fertilizers, fragrances, etc.). Try Solanyl in the application you want or in a suitable prototype. Contact us and convince yourself.
Processing
Solanyl® is a biodegradable material which can be moulded to a varying range of products on conventional injection moulding machines. Like all materials, Solanyl has its own processing conditions. Since Solanyl is based on natural materials its optimum processing temperature is lower than those of synthetic plastics. The recommended temperature profile ranges from about 110°C (first heated zone) to about 170§C at the nozzle.
Preferably, a temperature-controlled mould with a hot-runner having a diameter of minimal 1.5 mm is used. The optimum mould temperature depends on the wall thickness of the product. Solanyl has excellent flow properties enabling small wall thicknesses. Generally, the injection pressure is somewhat higher (20 to 30%) than needed when the same product would be made out of polyolefines.
The use of a relatively large feeding zone combined with a large screw depth at the feeding zone is advantageous, in particular for a machine with a small screw diameter. The screw does not require further special features. A universal screw will suffice. As moisture content influences the material properties Solanyl is supplied with the correct moisture content and needs to be stored in sealed packaging.
During trials one of our specialists is available for technical support to ensure maximum sharing of knowledge and expertise.