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Polyacrylonitrile (PAN) is a synthetic, semicrystalline organic polymer resin, with the linear formula (CH 2 CHCN) n. [2] Almost all PAN resins are copolymers with acrylonitrile as the main monomer.
It has a density of 1.17–1.20 g/cm 3, [1] [16] which is approximately half that of glass, which is generally, depending on composition, 2.2–2.53 g/cm 3. [1] It also has good impact strength, higher than both glass and polystyrene, but significantly lower than polycarbonate and some engineered polymers.
January 4 – President Duterte signs Republic Act No. 11510, institutionalizing the alternative learning system (ALS). [2] [3]January 18 – The Department of National Defense announces its unilateral termination of its 1989 accord with the University of the Philippines which took effect three days earlier over claims that the New People's Army is recruiting members in the universities' campuses.
The Advertising Board of the Philippines (Adboard) was incorporated as the Philippine Board of Advertising on May 3, 1974. It was established after a series of meetings in 1973 by major stakeholders of advertising industry in the Philippines. Its foundation was officially supported by the government's Department of Public Information (DPI). [1]
The Philippines uses the 12-hour clock format in most oral or written communication, whether formal or informal. A colon ( : ) is used to separate the hour from the minutes (12 : 30 p.m.). The use of the 24-hour clock is usually restricted in use among airports, the military , police , and other technical purposes.
Acrylic resin, a group of related thermoplastic or thermosetting plastic substances; Acrylic fiber, a synthetic fiber of polyacrylonitrile; Acrylic paint, fast-drying paint containing pigment suspension in acrylic polymer emulsion; Poly(methyl methacrylate), also known as acrylic glass or Plexiglass, a transparent thermoplastic
The 2021 Quincentennial Commemorations in the Philippines (2021 QCP) was a series of observances organized to mark the 500th anniversary of various events in the Philippines, notably the introduction of Christianity in the Philippines, the role of the country in the Magellan–Elcano circumnavigation, and the victory of Lapulapu in the Battle of Mactan.
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