Thermal stabilizer material, method of obtaining and uses thereof
The present disclosure relates to the use of eggshell particles as a polymer thermal stabilizer, preferably as a poly(vinyl chloride) (PVC) thermal stabilizer; also to a flexible material comprising a multi-layered PVC-based material, method of obtaining and uses thereof. An aspect of the present disclosure relates to a material comprising a poly(vinyl chloride), PVC, layer comprising eggshell particles, wherein the eggshell particle size is up to 200 μm, an intermediate layer or a plurality of intermediate layers; a support layer selected from the following list: fabric, knitted fabric, nonwoven, foam, or mixtures thereof; wherein the layers are bounded. Preferably a material solution free of azodicarbonamide, for automotive Interiors—Eco-friendlier, preferably sustainable artificial leather for automotive upholsteries.
1. A material comprising:
a poly(vinyl chloride), PVC, layer comprising eggshell particles, wherein the eggshell particle size ranges from 0.1-200 μm,
an intermediate layer or a plurality of intermediate layers;
a support layer selected from the group consisting of: fabric, knitted fabric, and foam;
wherein the PVC layer is bound to the intermediate layer or plurality of intermediate layers and the support layer;
wherein the amount of eggshell particles of the PVC layer is up to 20% (wt eggshell /wt PVC layer ); and
wherein the material is resistant to impact and flexing according to standard VDA 230-225:2014.
2. The material of claim 1 , wherein the plurality of intermediate layers is a foam layer and/or an adhesive layer.
3. The material of claim 1 , wherein the amount of eggshell particles of the PVC layer is up to 10% (wt eggshell /wt PVC layer ).
4. The material of claim 1 , wherein the amount of eggshell particles of the PVC layer is from 0.2-5% (wt eggshell /wt PVC layer ).
5. The material of claim 1 , wherein the eggshell particle size is 1 to 50 μm.
6. The material of claim 1 , wherein the material has a heat aging grade of 4-5.
7. The material of claim 1 , wherein the eggshell particles d50 is from 1.0 to 20 μm.
8. The material of claim 2 , wherein the foam layer further comprises eggshell particles; and/or the adhesive layer further comprises eggshell particles.
9. The material of claim 8 , wherein the amount of eggshell particles of the foam layer/adhesive layer is from 0.2-5% (wt eggshell /wt foam layer ).
10. The material of claim 8 , wherein the poly(vinyl chloride) layer, and/or the foam layer and/or adhesive layer comprises polymeric microspheres.
11. The material of claim 10 , wherein the polymeric microspheres are an expandable material containing a hydrocarbon with a low boiling point and a thermoplastic shell.
12. The material of claim 11 , wherein the microsphere particle diameter is from 1-50 μm.
13. The material of claim 1 , wherein any layer comprises sublayers.
14. An article comprising the material of claim 1 , wherein the article is upholstery or a seat or door panel or automotive interior trim.
15. The material of claim 1 , wherein the amount of volatile organic compounds or semi-volatile organic components emitted by the material is reduced by 5 to 25% compared to commercial equivalents.