Pp foam board automotive field

P foam board auto parts PP foam sheet with internal decoration density of 0.6g/cm3 has good mechanical properties and has a very promising future in the field of automotive interiors. It can be used for car trunk interior materials, high-end truck cab interiors. Materials, carpet support materials, visors, acoustic panels, luggage racks, interior trims, covers, cabinets, etc. PP foam sheet, with excellent physical properties, environmental performance, safety performance, etc., in line with the automotive industry's light weight, comfort, safety, environmental protection and other technological development trends, can be applied to automotive ceilings, door panels, The rack, the trunk and the like are epoch-making thermoplastic composite materials for vehicles. It can replace the PE foam board which is currently used in automobiles with poor physical properties. The polypropylene (pp) foaming board is light in weight and does not have the phenomenon of moisture absorption, mildew, odor, etc., and can be used as a roof of a car, a door guard, a frame, a wind tunnel, a shelf, a trunk, and the like. It is low-cost, lightweight, environmentally friendly, safe and comfortable. It is an epoch-making vehicle material. PP foam has high heat resistance, high impact energy absorption, good resilience and thermoformability. The advantages of recycling are used to manufacture automotive parts. For example, tar-reinforced PP is used to make instrument brackets, PP foam is used to make a soft elastic intermediate layer, and a soft sealing film is used for the outer skin. These parts can be recycled after the car is scrapped, disassembled, cleaned and regranulated.
The rigidity of PP is higher than that of PE. The rigidity of foamed PP is obviously better than that of foamed PE. PP foam sheet has high temperature resistance, good resilience, excellent mechanical properties, and unique advantages in application. Different density foam sheets have different the use of. The PP foamed sheet with a density of 0.3g/cm3 has good flexibility and resilience, simple cutting and easy processing. It is a suitable packaging material for packaging materials, partition boards, knife cards, auto parts and packaging boxes.
(1) The pp foam board has excellent heat resistance in the auto-packaged box cutter card. The foamed PS is usually used at 80 ° C, the foamed PE can only withstand 70-80 ° C, and the foamed PP can withstand 120 ° C. The foamed PP was placed at 120 ° C for 22 h, the dimensional shrinkage was less than 2%, and the foamed PE was shrinkage by about 40% under the same conditions. Therefore, foamed PP can be used in applications where the temperature exceeds 100 °C.
(2) pp foam board has excellent mechanical properties in the auto parts packaging box knife card. Its mechanical properties such as tensile strength and tear strength are at the highest level of foam; its compressive strength is lower than that of hard PUR and foamed PS, but higher than soft PUR, that is, it has moderate compressive strength.
(3) pp foam board has significant heat insulation in the auto-package box. Foamed PP is a closed cell structure like foamed PE, so its thermal conductivity is not affected by moisture. Since it has a lower thermal conductivity than foamed PE and has remarkable heat insulation properties, it can be used as an advanced thermal insulation material.
(4) pp foam board has good resilience in the auto-package box, and has high impact energy absorption capacity.
(5) pp foam board is chemically resistant to all other foams in auto parts packaging box cutters; it is resistant to edible oils and meets the needs of greasy food packaging.
(6) pp foam board has good stress crack resistance in the auto parts packaging box knife card.
(7) The pp foaming board has a non-toxic gas release during combustion in the auto-packaged material box knife card compared with the foamed PS.
(8) pp foam board has the advantages of recyclable regeneration in the auto-package box.
(9) pp foaming board has better degradation performance in the auto parts packaging box knife card than foamed PS and foamed PE.