subject: 21 Only Content Resolution(2) [print this page] 1EVA bottom: Ethylene Soft Acetate-ethanoic acid ethylene copolymer, great plastic material content. In runs regularly used, decreases speed, the walking footwear, the foot instructs in the footwear the end. The nature light, simple to process, is not wear-resisting, not oil proof.
Merit: Facile, flexibility excellent, flexible but difficult to break excellent, not simple wrinkle, has the ideal colour, is suitable for each type of climate.
Shortcoming: Simple to process water not easily, to rust the disadvantageous ecological security, the simple areas.
2MD bottom: MODEL or PHYLON fly the monster general status, is the EVA two questionable structures. Inside the MD footwear only certainly all includes the EVA, MD base also to call the PHYLON base. For instance MD=EVA+RB or EVA+RB+TPR also have some footwear are RB+PU and so on.
Merit: Facile, willowy, the external overall look slim, soft are good; Simple to clean; Degree of firmness, the solidity, the taking force, the avulsion, the elongation rate are excellent.
Shortcoming: Not simple to rust the disadvantageous ecological security, when the warm Yi Zhou, simple to contract; The strength is bad, period of trend long it draws drinks the strength then to be able to reduce, the leaks in the structure is bad.
3TPR bottom: TPR is a unique thing, including TPV, SEBS, SBS, TPO, TPU, EVA, and other items. TPR feet mainly is the term for the generally known as SBS customized footwear (a from the application of TPR material). TPR footwear special content is polycarbonate SBS mainly in the of a new type of plastic material components for footwear, silicone and polycarbonate handling and recycle, you can use the common plastic material developing machine for hypodermic injection casting, extrusion, blow casting made of silicone items. TPR aggregates after hot liquefy hypodermic injection casting, developing molecular to release strategies.
Merit: simple moulding, cheap; with compact, comfortable, great flexible, discoloration and great air leaks in the structure, strength features, especially the excellent low heat range level of resistance, great rubbing coefficient, strong bond.
Shortcoming: inadequate components, use (not wear), inadequate versatility, flexing low (no folding), inadequate cushioning capacity, inadequate air flow.
4TPU bottom: The full headline thermos plastic material memory elastomer (Thermoplastic Polyurethane), it is by two iso cyanogen ethylene glycerin dinitrate and the macro-molecule polyols, the cycle increase reacted together the the straight line great plastic material content, is one type of new ecological security content.
Merit: Has the excellent technical strength, the level of capacity put on, the oil level of resistance and holds the versatility, the level of capacity put on is specially most popular, external overall look excellent, natural elegant.
Shortcoming: The heat balance, the heat-resisting stream personality, keep the compressibility to be bad, external overall look instable yellow-colored, in the handling simple to stick the pattern, difficult, heavy, the leaks in the structure is bad.
5. The PVC base (imitates base leather): Polyvinyl-chloride polyvinyl Chloride, the true colors for the micro yellow-colored transparent shape, have the shine, it can appear the albinism in the inflection place.
Merit: The majority is inexpensive, oil proof, wear-resisting, the insulation ability is excellent.
Shortcoming: The non-skid property is bad, the quality of content is bad, is not cold proof, does not keep the report, the leaks in the structure is bad.
