Expert Yogi
Posts: 7714
   
| Domestic wood raw material base has existed for generations: It first took the wood
and timber, and the second took the plywood, fiberboard, particle board,wood plastic composite outdoor in
singapore wood pulp, wood-based panels represented. In 2003 China's plywood
production has been ranked first in the world. The third took the WPC, has been on the
market shine, WPC combines excellent performance of both plastic and wood, has an
absolute advantage in the door material. Currently domestic wood market has great
potential, although wood products worldwide annual production of only a few hundred
tons, but since 1998 Europe and America countries, annual 65% rate of increase. Now 10
domestic wood production enterprises, there are seven foreign manufacturers and
products for export. China chemical materials testing department of the properties of
materials and environmental protection have to undergo a rigorous inspection to ensure
that the interests of consumers does not hurt. Good mechanical properties, can be the
same as wood sawing, planing, nails and other mechanical processing, with a hard,composite boat dock material
cost tough, durable, wear-resistant properties; even after the formation of large
regular foam cell, make the products have to cost savings. Experimental results show
that, compared to non foamed PVC / wood flour composites, extruded foam density can be
reduced by 50%, up to 0.6g / -1.0g / cm3. Foam after regular uniform cell structure can
be passivated elongation at break of the crack tip can be significantly improved. It is
also an environmentally friendly material, cheap and abundant raw materials,
recyclable, reducing environmental pollution, protect forest resources. Garden online
news March 30: As a new wood-plastic green products, although in recent years become
the world attention and the development of hot spots, but many domestic wood enterprise
business situation is not optimistic, and why? I think for three reasons.
First, the production technology needs upgrading. According to the China Forestry
Economy Society Secretary-General Chen root length, the current wood processing
technology are mainly two. One is produced in modified plastic, plastic is the material
as a wood filler,wood plastic
fencing in serbia or rely on external pressure to force the glued wood and plastic
combined. This technique has two key flaws hinder the development of large wood
industry, one is not plasticized wood polar and non-polar plastic poor compatibility,
plastic and wood materials in combination is not tight, resulting in decreased quality
material; Second, a large proportion of the use of plastic, wood effect is not ideal,
high production costs, there is no price advantage, it is difficult to open the market.
Again a technology that is produced in modified wood, its technical features is to
first use a specially formulated initiators between wood initiating a chemical
reaction, the polarity of the wood as much as possible to eliminate performed plastic
of pretreatment. Plastics processing so WPC processing performance improved, the
requirement to reduce the processing machinery, plastic usage has declined, while
improving product performance to reduce production costs, thereby enhancing the
competitiveness of wood products. Currently,composite wood decking suppliers domestic enterprises are using
wood is the first technique, in urgent need of upgrading. |
Developing Prospect of WPC
