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Modified polypropylene (PP) is widely used in automobiles, home appliances, electrical and electronic, consumer goods and other fields because of its good molding processability and mechanical properties
.
With the gradual improvement of the requirements for energy saving, emission reduction and environmental protection in various countries, the advantages of plant fiber modified polypropylene are becoming more and more obvious
.
As a natural renewable material, the high proportion of plant fibers can reduce the relative consumption of petroleum-based resins, thereby reducing carbon emissions
.
Wanhua Chemical focuses on low carbon and environmental protection, and launched Wanatural™ series of plant fiber modified polypropylene products
.
Wanatural™ products currently mainly involve three series, toughening series, high rigidity series and appearance series
.
The toughening series has a good balance of rigidity and toughness, stable color and good smell.
It can replace traditional mineral powder reinforcement materials and is suitable for injection molding various decorative panels/pieces with impact requirements, such as automotive interior parts;
High-rigidity series products can replace traditional glass fiber reinforced and high mineral powder filling materials, with low density, outstanding rigidity and heat resistance, and are suitable for injection molding of parts with high rigidity and heat resistance requirements such as various brackets and bases;
The appearance series makes full use of the unique texture of natural fibers.
The products have rich colors, clear lines, no solvent, and "zero formaldehyde" release.
They have great application potential in personalized interior decoration, furniture, daily necessities and other fields
.
In addition to the advantages of low carbon emissions, Wanatural™ series products are extruded through blending of fibers and resins, and directly injection molded, avoiding the risk of moisture absorption and mildew in the later use of products caused by traditional lamination methods
.
The strength of some plant fibers is almost the same as that of glass fibers, but the density is only half that of glass fibers, or even lower, which is in line with the current trend of lightweight automobiles, further reducing fuel consumption and helping environmental protection
.
In addition, through the special treatment of the fiber surface and the use of unique low-emission raw materials, at the same time, with the help of multi-stage vacuum system and low-temperature blending technology, on the basis of achieving low density and excellent mechanical properties, TVOC is not more than 50μgC/g ( VDA277), the odor level is less than 3.
5 (PV3900)
.
Plant fiber itself has poor heat resistance, easy yellowing, high water absorption, and poor fluidity during high filling, which puts forward higher requirements for the control of molding process
.
In order to overcome such problems, Wanhua has actively cooperated with downstream customers, and has developed a complete molding process for Wanatural™ product series after multiple molding verifications, which can meet the needs of different molding conditions such as injection molding
.
