亚洲精品网站66_婷婷综合激六月情网_中文字幕亂倫視頻_av首页在线观看_欧美亚洲综合成人AⅤ在线_又黄又粗又大av_国产精品午夜在线播放_波多野结衣中文无码_奇米影视777狠狠狠888不卡_免费一级国产黄片

Index > News

1. At present, destructive biological degradation plastics mainly include starch modified (or filled) polyethylene PE, polypropylene PP, PVC, polystyrene PS, etc.Read more

Lactic acid can be produced by fermenting sugar from grain or other organic matter. Lactic acid can be polymerized to produce a linear aliphatic polyester, polylactic acid (PLA).Read more

One is not fully degradable plastic. It is generally composed of "PE + starch" or "PE + disintegrator". Many companies sell it.Read more

It refers to the material that the polymer chain decomposes orderly under the influence of ultraviolet. Most polymers do not absorb more than 285nm of light energy. However, if light sensitive groups or chemical additives with light sensitive effect are aRead more