wpc decking

Additives are also often used in WPCs. Additives are
materials that are added in small amounts to enhance
properties. For example, lubricants improve surface
appearance and  processing; coupling agents improve
adhesion between the wood and plastic components. Other
possible additives include colorants, light stabilizers,
foaming agents, and thermosetting resins.
The first step in producing a WPC is to determine what raw
materials, and in what amounts, will produce a WPC that
meets the processing and  performance requirements.
Manufacturing  melt-blended composites is  usually a twostep process consisting  of compounding and  forming. In
the compounding step, wood flour or wood fiber and additives are combined with molten thermoplastic to produce a
homogeneous composite material. Three common forming
methods for WPCs are extrusion (forcing molten composite
through a die), injection molding (forcing molten composite into a cold  mold), and compression molding (pressing
molten composite between mold halves).

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The production of Wood-Plastic Composites typically uses a fine wood waste (cellulose based fiber fillers such as hardwood, softwood, plywood, peanut hulls, bamboo, straw, etc.) mixed with various plastics (PP, PE, PVC). The powder is extruded to a doughlike consistency and then extruded to the desired shape.

Additives such as colorants, coupling agents, stabilizers, blowing agents, reinforcing agents, foaming agents, and lubricants help tailor the plastic end product to the target area of application.

With up to 70 percent cellulose content, wood-plastic composites behave like wood using conventional woodworking tools. At the same time, they are extremely moisture-resistant. There is little or no water present, thus increasing resistance to rot.

Wood-plastic composites are already widespread in outdoor use for decking, cladding, park benches, etc. There is also a growing market for potential indoor uses such as door frames, trim and furniture.

wpc

WPC statement of urgency!
No to the Israeli invasion to Gaza-Stop the massacre of the Palestinian people!
The World Peace Council (WPC) expresses its vehement condemnation of the
yesterday’s invasion of Israel into the Gaza strip in Palestine. The Israeli cruelty has no
end. After the week long bombardment of innocent children, women and civilian
population, the heavy armed war machinery of Israel is escalating further its aggression
with a ground invasion. The hundreds of dead Palestinians, the thousands of injured by
Israeli bombs are crimes against humanity and have to be put to court as such.
The Israeli regime would not be able to commit those brutal attacks without the full
support of the US administration (outgoing and incoming one). The position expressed
by the Czech EU- Presidency (about “defensive character of the invasion”) shows the
criminal complicity of the European Union, which is far away from being more human or
even less a counter pole of the USA.
The government of Israel is counting also on the internal differences and
contradictions amongst the Palestinians and the Arab world. This is the moment of
highest responsibility and unity against the troops of invasion and occupation. We call
upon all the peace loving forces in the region to unite against the imperialist plans in the
Middle East, against the “procurator” of Imperialism in the region, the reactionary and
inhuman Israeli regime.
We express our deep respect and solidarity to the forces struggling for peace
inside Israel and we salute their brave protests and demonstration in Tel Aviv and other
cities.
The World Peace Council is calling upon the Security Council of the UN and its
Human Rights Council in Geneva, to prove their minimum respect to the founding Charta
of the UNO and the Universal declaration of Human Rights, by condemning clearly the
Israeli aggression and imposing an end to the invasion and the occupation of the
Palestinian Territories, which is the first cause for all the suffering of the Palestinian
People since 60 years now.
In this moment the peoples of the world have to react with massive political
protests and actions against the injustice and genocide of the Palestinian people. The
WPC calls for increased solidarity and humanitarian aid of all means and will take
respective initiatives in the coming days.
The Secretariat of the WPC

wood plastic composite

  
The WIRELESS PLANNING & COORDINATION (WPC) Wing of the Ministry of Communications, created in 1952, is the National Radio Regulatory Authority responsible for Frequency Spectrum Management, including licensing and caters for the needs of all wireless users (Government and Private) in the country. It exercises the statutory functions of the Central Government and issues licenses to establish, maintain and operate wireless stations. WPC is divided into major sections like Licensing and Regulation (LR), New Technology Group (NTG) and Standing Advisory Committee on Radio Frequency Allocation (SACFA). SACFA makes the recommendations on major frequency allocation issues, formulation of the frequency allocation plan, making recommendations on the various issues related to International Telecom Union (ITU), to sort out problems referred to the committee by various wireless users, Siting clearance of all wireless installations in the country etc.