I want to buy a new mattress, environmental point of view, what is a good brand introduction?
ECOFLEX from Italy, he has been focusing on product technology research and development and innovation, the use of technology and materials to ensure that the quality of the product and craftsmanship, and access to the maintenance of suppliers and partners.
In the European market, PERMAFLEX has a love of the world of integration, believes that close attention should be paid to the primary qualities (such as quality, safety, style, craftsmanship, tradition and experience) and noble taste and details.
What is the meaning of degradable plastics
Degradable plastics are a class of products whose properties can meet the requirements of use, the performance of which remains unchanged during the preservation period, and the plastics that can be degraded into environmentally benign substances under natural environmental conditions after use. Therefore, it is also called environmentally degradable plastics.
Biodegradable plastics can be divided into two types: completely biodegradable plastics and destructive biodegradable plastics. Destructive biodegradable plastics mainly include starch-modified polyethylene PE, polypropylene PP, polystyrene PS and so on.
Completely biodegradable plastics are mainly made of natural macromolecules (such as starch, cellulose, chitin) or agricultural by-products by microbial fermentation or synthesis of biodegradable macromolecules, such as thermoplastic starch plastics, aliphatic polyester, polylactic acid, starch/poly(vinyl alcohol) and so on, all of which belong to this type of plastic.
Biodegradable plastics based on natural substances such as starch mainly include the following products: polylactic acid, polyhydroxyalkanoate (PHA), starch plastics, bio-engineering plastics, bio-universal plastics (polyolefins and polyvinyl chloride).
The use of degradable plastics can bring convenience, such as spikes for golf courses, and seedling fixing materials for rainforest reforestation.
Specific applications in:
1, agriculture, forestry and fisheries, mulch, water retention materials, seedling pots, seedbeds, rope nets, pesticides and agricultural fertilizers slow release materials.
2, packaging industry, shopping bags, garbage bags, disposable lunch boxes, instant noodle bowls, cushioning packaging materials.
3, sporting goods, golf course spikes and seats.
4, hygiene products, women’s hygiene products, medical mattress pads, disposable beard knife.
5, medical materials, bandages, clips, swabs, gloves, drug retardation materials, and surgical sutures and fracture fixation materials.
Approximately how many types of biodegradable plastics are there? What are the specifics?
Biodegradable plastics are roughly divided into seven kinds
Globe Plasticizer believes that polylactic acid (PLA) is a new type of biodegradable material, made from starch raw material proposed using renewable plant resources (such as corn). It is understood that PLA usage accounts for 45.1% of biodegradable plastics, and is a well-deserved mainstay!
Two, poly-3-hydroxyalkanoate (PHA)
PHA is synthesized by microorganisms through the fermentation of various carbon sources of aliphatic copolyester of different structures. The most common of them are poly-3-hydroxybutyrate (PHB), polyhydroxyvalerate (PHV) and the copolymer of PHB and PHV (PHBV). The main uses are: disposable tableware, non-woven fabrics, packaging materials, agricultural mulch, toys, wraps, gum, fibers and many other biodegradable products.
Three, poly ε-caprolactone (PCL)
Poly ε-caprolactone (PCL) is a low-melting polymer obtained by ring-opening polymerization of ε-caprolactone, whose melting point is only 62 ° C. Degradation studies on PCL have been conducted since 1976, and PCL can be completely decomposed by microorganisms in an anaerobic and aerobic environment.
Four, polyester – PBS / PBSA
PBS to aliphatic butanedioic acid, butanediol as the main raw material for the production of both petrochemical products to meet the demand, but also through the starch, cellulose, glucose and other renewable crops in nature, through the bio-fermentation pathway to produce, so as to realize the nature from nature, return to the nature of the green cycle of production. Moreover, the raw materials produced by bio-fermentation process can significantly reduce the cost of raw materials, thus further reducing the cost of PBS.
Five, aliphatic aromatic copolyester
Germany BASF company made aliphatic aromatic random copolyester (Ecoflex), its monomer: adipic acid, terephthalic acid, 1,4-butanediol. The current production capacity is at 140,000 tons/year. Meanwhile, biodegradable plastic products based on polyester and starch have been developed.
Six, polyvinyl alcohol (PVA)
Water-soluble PVA film is a new type of plastic products in the international emergence. It utilizes the film-forming properties of PVA, water and biological degradation of two characteristics, can be completely degraded to CO2 and H2O, is a veritable green high-tech packaging materials.
Seven, carbon dioxide copolymer
A new type of synthetic materials being studied, carbon dioxide as a monomer raw material in the role of bimetallic ligand PBM-type catalysts, was activated to a higher degree, and the epoxide copolymerization reaction occurs, generating an aliphatic polycarbonate (PPC), after post-processing, carbon dioxide resins obtained materials. Domestic Inner Mongolia Mengxi Group of companies using Changchun Institute of Applied Chemistry technology, has built an annual output of 3,000 tons of carbon dioxide / epoxy compound copolymer resin device, the product is mainly used in packaging and medical materials.