Abstract:
The present invention relates to a sewage treatment apparatus having a multi-stage type pH-regulation bath and a method for reducing nitrogen and phosphorous of the sewage water using the same, by installing a blocking plate inside a pH-regulation bath to interrupt the rise of air bubbles emitted from an air bubble supplying device, without miniaturizing, in order to staying time of the air bubbles inside the pH-regulation bath, and by giving impact to alkali sludge so as for an alkaline matter to be emitted. Thereby, the energy needed to blow air to the air bubble supplying device of the pH-regulation bath.
Abstract:
열가소성 수지 조성물 및 플라스틱 성형품이 제공된다. 상기 열가소성 수지 조성물은 열가소성 수지(A)와, 단면의 어스팩트비가 1.5 이상인 유리 섬유(B) 및 폴리올레핀을 주쇄로 하는 가지형 그라프트 공중합체(C)를 포함한다. 열가소성 수지 조성물, 유리 섬유, 가지형 그라프트 공중합체, 플라스틱 성형품, 휨 특성, 유동성, 내충격성
Abstract:
A thermoplastic resin composition is provided to improve flowability and bending characteristics and excellent impact resistance. A thermoplastic resin composition includes 0.1-10 parts by weight of a branched type graft copolymer comprising polyolefin as a main chain, based on 100 parts by weight of a base resin. The base resin comprises 40-90wt% of a thermoplastic resin and 10-60wt% of a glass fiber having a cross-sectional aspect ratio of 1.5 or more. A branch part of the branched type graft copolymer comprising polyolefin as a main chain is selected from the group comprising acrylate groups, modified ester groups, arylate groups, and acrylonitrile groups.
Abstract:
A polyamide-based resin composite material, a pellet obtained by extruding the composite material, and an interior or exterior material for automobiles or electrical/electronic products molded from the composite material are provided to improve impact resistance, fluidity and appearance characteristics. A polyamide-based resin composite material comprises 100 parts by weight of a base resin which comprises 20-80 wt% of a modified polyamide-based thermoplastic resin and 20-80 wt% of a reinforcing fiber; 1-20 parts by weight of an olefin-based impact modifier grafted with a functional group selected from maleic anhydride, glycidyl methacrylate, oxazoline and their mixture; and 0.5-15 parts by weight of an unreactive acrylate-based impact modifier.
Abstract:
본 발명은 (A) 나일론계 열가소성 수지 50∼80 중량부; (B) 고무질 함량이 30∼70 중량%인 g-ABS 공중합체 수지 10∼40 중량부; 및 (C) 폴리-메틸메타아크릴레이트(PMMA) 수지 1~20 중량부로 이루어지는 것을 특징으로 하는 나일론/ABS/PMMA 얼로이 수지 조성물에 관한 것으로, 기존의 나일론/ABS 얼로이에 스티렌-아크릴로니트릴(SAN) 공중합체 수지와 부분 상용성을 나타내는 PMMA를 첨가함으로써 나일론/ABS 얼로이의 유동성, 기계적 물성 뿐만 아니라 저온 내충격성 또한 향상시키는 효과가 있다. 나일론, 스티렌계 중합체, ABS 수지, PMMA 수지, 얼로이, 충격보강제, 저온 충격성, 기계적 물성
Abstract:
Provided is a nanocomposite resin composition which has high impact strength, and high low temperature impact strength and is improved in elasticity and heat resistance. The nanocomposite resin composition comprises 45-79.5 parts by weight of a nylon-based nanocomposite resin which contains a nano-sized plated silicate-based inorganic filler; 20-50 parts by weight of a graft copolymer which is formed by graft-polymerizing a rubbery polymer, a cyanovinyl monomer and an aromatic vinyl monomer; and 20 parts by weight or less of a copolymer of a cyanovinyl monomer and an aromatic vinyl monomer. Preferably the rubbery polymer contains a polybutadiene-based rubbery polymer and has an average diameter of 0.2-0.5 micrometers.