Product

Description

Noise reduction is an urgent issue in the automotive industry. The noise, vibration and sound vibration (NVH) inside the cockpit is more prominent in ultra-quiet electric vehicles. We hope that the cabin becomes a paradise for leisure and entertainment. Self-driving cars need a quiet internal environment.

Many components used in car dashboards, center consoles and trim strips are made of polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) alloy. When two parts move relatively to each other (stick-slip effect), friction and vibration will cause these materials to produce noise. Traditional noise solutions include the secondary application of felt, paint or lubricant, and special noise-reducing resins. The first option is multi-process, low efficiency and anti-noise instability, while the second option is very expensive.

Silike’s anti-squaking masterbatch are a special polysiloxane that provides excellent permanent anti-squeaking performance for PC / ABS parts at a lower cost. Since the anti-squeaking particles are incorporated during the mixing or injection molding process, there is no need for post-processing steps that slow down the production speed. It is important that SILIPLAS 2070 masterbatch maintain the mechanical properties of PC/ABS alloy-including its typical impact resistance. By expanding design freedom, this novel technology can benefit automotive OEMs and all walks of life. In the past, due to post-processing, complex part design became difficult or impossible to achieve complete post-processing coverage. In contrast, silicone additives do not need to modify the design to optimize their anti-squeaking performance. Silike’s SILIPLAS 2070 is the first product in the new series of anti-noise silicone additives, which may be suitable for automobiles, transportation, consumer, construction and home appliances.

Features

•Excellent noise reduction performance: RPN<3 (according to VDA 230-206)

• Reduce stick-slip

• Instant, long-lasting noise reduction characteristics

• Low coefficient of friction (COF)

• Minimal impact on the key mechanical properties of PC / ABS (impact, modulus, strength, elongation)

• Effective performance with low addition amount (4wt%)

• Easy to handle, free flowing particles

The noise risk priority index (RPN) results show that when the content of SILIPLAS 2070 is 4% (wt),the RPN is 2. RPN below 3 indicates that the noise is eliminated and there is no long-term application risk.

Fundamental Parameters

The graph of the pulse value change in the stick-slip test of PC/ABS after adding 4% SILIPLAS2070:

It can be seen that the stick-slip test pulse value of PC/ABS after adding 4% SILIPLAS2070 has dropped significantly, and the test conditions are V=1mm/s, F=10N.

After adding 4% SILIPLAS2070, the impact strength will not be affected.

Benefits

• Minimize disturbing noise and vibration

• Provide stable COF during the service life of parts

• Optimize design freedom by implementing complex geometric shapes

• Simplify production by avoiding secondary operations

• Low dosage, improve cost control

Application field

• Automotive interior parts (trim, dashboard, console)

• Electrical parts (refrigerator tray) and trash can, washing machine, dishwasher)

• Building components (window frames),etc.

Goal customers

PC/ABS compounding plant and part forming plant

Usage and dosage

Added when the PC/ABS alloy is made, or after the PC/ABS alloy is made, and then melt-extrusion granulated, or it can be added directly and injection molded (under the premise of ensuring dispersion).

The recommended addition amount is 3-8%, the specific addition amount is obtained according to the experiment

Package

25Kg / bag , craft paper bag.

Storage

Transport as non-hazardous chemical. Store in a cool , well ventilated place .

Shelf life

Original characteristics remain intact for 24 months from the production date , if kept in recommend storage.