MODIFIED POLYCARBONATE (PC)

Polycarbonate (PC) is a high‑performance engineering plastic featuring outstanding impact resistance, transparency and heat resistance. To meet strict requirements of specific application scenarios, modification technology can further enhance certain performances or make up for inherent drawbacks such as poor wear resistance and mediocre chemical resistance. The core features and corresponding main applications of various modified PC grades are described in detail below.

PLATING / PAINTING MODIFICATION Due to limited surface polarity of neat PC, direct plating or painting may result in insufficient coating adhesion. Plating and painting modification improves bonding strength between PC and metal plating or paint through formula design to adapt to subsequent surface decoration processes. Its key advantage lies in high painting yield and firm combination with coatings for premium surface appearance. Modified PC of this type is mainly used for products with high surface‑quality requirements, such as mobile phone housings, automotive interior and exterior trims, and various electronic product shells requiring high gloss or metallic texture.

CHEMICAL‑RESISTANT MODIFICATION PC is vulnerable to erosion by certain organic solvents and chemical media, which leads to stress cracking. Chemical‑resistant modification aims to improve overall chemical resistance, mostly realized by copolymer technology through molecular‑chain structural design to achieve intrinsic chemical tolerance. New PC copolymer series can resist harsh chemicals such as strong disinfectants, peroxides, sun‑cream and lotions, effectively preventing cracking and discoloration during service. Materials with excellent chemical resistance are widely adopted in fields with frequent chemical contact, including medical device housings, handheld diagnostic instruments, household medical equipment and consumer electronics, to extend service life and satisfy strict cleaning and disinfection standards.

HIGH IMPACT RESISTANCE High impact resistance is one of the most remarkable intrinsic properties of PC. This modification maximizes such advantage or realizes additional functions without excessive loss of toughness. PC delivers top‑level impact strength among engineering plastics. High‑impact modified PC optimizes resin molecular weight and formula. Under extreme conditions such as low‑temperature and high‑speed impact, it absorbs massive energy via plastic deformation to protect internal components and human safety. It is widely used for safety‑critical products including safety helmets, face shields, bullet‑proof glazing, automotive bumper systems, drop‑resistant electronic devices and child safety seats.

FOOD‑GRADE MODIFICATION Food‑grade modification covers a series of comprehensive modifications focusing on hygiene safety for food contact. Base PC resin and all additives shall comply with FDA, EU and relevant regulations. All ingredients must be non‑toxic, odor‑free and non‑migrating. The material features high chemical inertness without harmful substance leaching into food and no negative influence on food sensory quality. It also owns good hydrolysis resistance and tolerates repeated cleaning and disinfection. Food‑grade modified PC applies to direct‑food‑contact scenarios such as reusable water drums, drinking cups, tableware, baby bottles and components for food processing and packaging machinery.

PRODUCT FEATURES AND PARAMETERS Performance: Other Modifications Physical properties: Various modification types are available. Click for items not shown here. MOQ: 1 ton upon successful sample testing

PARTICIPATION PROCESS Modification manufacturers please contact supplier service for supply registration. Buyers click group‑purchase or contact procurement service to submit procurement requirements. The platform screens qualified modified material suppliers from the database or launches bidding according to demand. After successful sample testing, buyers confirm the preferred modified materials and suppliers, then sign official purchase and sales contracts.