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FRP duct can be divided into inorganic and organic. Inorganic FRP and organic FRP have different compositions, properties and functions, which are suitable for different scenes.

一、玻璃纖維氯氧鎂水泥通風管道（無機玻璃鋼風管）

1、 Glass fiber magnesium oxychloride cement ventilation duct (inorganic FRP duct)

無機玻璃鋼是指采用輕燒氧化鎂、稀鹽酸、鹽鹵、黃河沙、防水粉、樹脂、促進劑、固化劑、地板蠟、玻璃布等制作而成，也叫氧化鎂。

Inorganic glass fiber reinforced plastic is made of light burned magnesium oxide, dilute hydrochloric acid, bittern, yellow river sand, waterproof powder, resin, accelerator, curing agent, floor wax, glass cloth, etc., also known as magnesium oxide.

玻璃纖維氯氧鎂水泥通風管道（亦稱無機玻璃鋼風管）是一種新型環保通風管道，按其用途可分為P類和D類。P類風管主要應用于公用建筑，人防工程及一般需要安裝通風及空調設施的工業廠房和礦井等的通風管、防、排煙管；D類風管主要應用于住宅建筑的通風、排油煙風道。無機玻璃鋼的韌性較差于有機玻璃鋼，易返鹵，裂口；防水性能僅次于有機玻璃鋼；可凈化空氣，能吸收空氣的二氧化碳；可降解，具有物理系數上的優點。

Glass fiber magnesium oxychloride cement ventilation duct (also known as inorganic FRP duct) is a new type of environmental protection ventilation duct, which can be divided into P and D categories according to its purpose. Class P air ducts are mainly used in public buildings, civil air defense projects, industrial plants and mines that generally need to install ventilation and air conditioning facilities, such as ventilation ducts, smoke control and exhaust ducts; Class D air ducts are mainly used in ventilation and fume exhaust ducts of residential buildings. The toughness of inorganic glass fiber reinforced plastics is poorer than that of organic glass fiber reinforced plastics, which is easy to return halogen and crack; The waterproof performance is second only to that of organic glass fiber reinforced plastic; It can purify the air and absorb carbon dioxide from the air; It is degradable and has the advantage of physical coefficient.

二、玻璃纖維增強塑料通風管道（有機玻璃通風管道）

2、 Glass fiber reinforced plastic ventilation duct (plexiglass ventilation duct)

有機玻璃鋼根據采用的纖維不同分為玻璃纖維增強復合塑料（GFRP），碳纖維增強復合塑料（CFRP），硼纖維增強復合塑料等。它是以玻璃纖維及其制品（玻璃布、帶、氈、紗等）作為增強材料，以合成高分子樹脂作基體材料的一種復合材料。

According to the different fibers used, PMMA can be divided into glass fiber reinforced plastics (GFRP), carbon fiber reinforced plastics (CFRP), boron fiber reinforced plastics, etc. It is a composite material with glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as reinforcement and synthetic polymer resin as matrix material.

玻璃纖維增強塑料通風管道（亦稱有機玻璃鋼風管）是空調、除塵、通風、凈化以及氣體輸送等理想的管道材料，它具有重量輕、耐腐蝕、強度高、耐老化、特別適用于潮濕河有酸堿的場合。有機玻璃鋼風管采用不飽合聚酯樹脂和玻璃纖維制成。樹脂型號可根據風管用途不同選用相應型號的樹脂。玻璃鋼風管內表面平整光滑、外表面整齊美觀，厚度均勻，美觀大方。玻璃鋼風管可以按用戶要求做成各種顏色，色澤明快，可以按用戶要求做成阻燃風管，氧指數不小于30。玻璃鋼風管適用于輸送腐蝕性氣體的通風系統中；當通風系統要求外觀色澤美觀時，也可采用玻璃鋼風管。

Glass fiber reinforced plastic ventilation duct (also known as organic glass fiber reinforced plastic duct) is an ideal pipe material for air conditioning, dust removal, ventilation, purification and gas transmission. It has light weight, corrosion resistance, high strength, aging resistance, and is especially suitable for wet rivers with acid and alkali. The plexiglass steel air duct is made of unsaturated polyester resin and glass fiber. The resin model can be selected according to the different uses of the air duct. The inner surface of FRP air duct is flat and smooth, the outer surface is neat and beautiful, the thickness is uniform, and the appearance is generous. FRP air duct can be made into various colors according to user requirements, with bright color. It can be made into flame-retardant air duct according to user requirements, and the oxygen index is not less than 30. Fiberglass reinforced plastic air duct is applicable to the ventilation system conveying corrosive gases; When the ventilation system requires beautiful appearance and color, FRP air ducts can also be used.

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