▎ 摘　　要

NOVELTY - High strength hard plastic scraper comprises 60-80 pts. wt. polycarbonate plastic, 10-30 pts. wt. modified reinforced fibre, 10-15 pts. wt. hard filler, 5-10 pts. wt. potassium titanate crystal whisker, 1-5 pts. wt. compatilizer, 0.1-1 ots. wt. antioxidant, 3-8 pts. wt. toughening agent, 0.1-1 pts. wt. ester exchange inhibitor, 1-5 pts. wt. fibre agent, 2-4 pts. wt. impact modifier, 0.1-1 pts. wt. lubricant and 300-1000 pts. wt. auxiliary agent. USE - High strength hard plastic scraper for printer. ADVANTAGE - The high strength hard plastic scraper has light weight, rust resistance, impact resistance, easy processing and low cost and other excellent characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high strength hard plastic scraper, which involves accurately weighing PC resin, hard filler, compatilizer, antioxidant, toughening agent, ester exchange inhibitor, de-floating fibre agent, impact modifier and lubricant, then adding high speed mixer to mix according to the weight ratio of the prescription, accurately weighing potassium hexatitanate crystal whisker, using coupling agent to modify, preparing modified reinforcing fibre; adding the potassium hexatitanate crystal whisker modified by coupling agent into the high speed mixer, melting and mixing the mixture, extruding and cooling, granulating and drying, the obtained granules are injection moulded to obtain the product.