可降解颗粒的降解本质是什么 - 常见问题

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可降解颗粒的降解本质是什么

可降解颗粒的降解本质是什么

来源网址:http://www.rsoau.com 2019-04-02 14:43:02    

  不要看着有着一次性筷子比较白,就觉得相当的清洁,其实太白也是不好的,故而不要用自以为去选择,多熟悉一点这方面的知识,如斯才能为我们携来更大的好处和便利,故而担保我们的健康问题。一次性塑料餐盒是当今生活中不可缺少的材料,在许多的场合都需要该产品材料,是生活中比较管用的资源回收再利用的成功例子。我国一向提倡资源的反复利用,如斯不仅仅可以起到节省资源更可以达成环保的目的,故而一次性塑料餐盒永远受到大众朋友的认可,成为了社会环保的有利资源,并且很好的运用在日常的生活中间,帮助更多的朋友处理了生活中的难题。
  Don't look at disposable chopsticks that are relatively white and feel quite clean. In fact, too white is not good. So don't use self-confidence to choose, and know more about this knowledge. Only in this way can we bring more benefits and convenience, so we can guarantee our health problems. Disposable plastic lunch box is an indispensable material in today's life. It is needed in many occasions. It is a successful example of recycling and reusing the most useful resources in life. Our country has always advocated the reuse of resources, such as not only to save resources but also to achieve the goal of environmental protection. Therefore, disposable plastic lunch boxes are always recognized by public friends and become a favorable resource for social environmental protection. They are well used in daily life, helping more friends to deal with the problems in life.
  一次性纸杯的优劣,可以通过“一看二闻三摸”的样式加以鉴别。
  The advantages and disadvantages of disposable paper cups can be distinguished by the pattern of "one look, two smells and three touches".
  看:除了看包装上的生产企业名称、地址、出产日期等,还要对着光看,倘若有蓝光或杂质不买;
  Look: In addition to looking at the name, address and date of production of the manufacturer on the packaging, we should also look at the light, if there is blue light or impurities do not buy;
  闻:有无刺鼻气味;
  Smell: Has a pungent smell?
  摸:感觉特软的,也许是劣质产品。
  Touch: It feels very soft, maybe it's inferior.
  提示:在使用一次性纸杯时,先用开水烫一下,让纸杯中的有害物质实足挥发。上一条:经常使用一次性饭盒好不好下一条:方便筷子质地怎么辨别。
  Tip: When using disposable paper cups, first blanch them with boiling water to make the harmful substances in the cups volatilize. The first one: How about using disposable lunch boxes? The next one is how to distinguish the texture of convenient chopsticks.
  选购奶茶杯时要比较初看料的厚度,太软的不行,用手去捏一下奶茶杯,捏出来不用力又拿不住。在家先拿一杯水感触一下,进而买的时候拿在手里感触一下看厚度够不够。还有的一些是奶茶杯杯沿的结实程度。奶茶杯沿要够厚、够结实,主要是用料要匀称,如此盛满奶茶时,用手提杯沿才不会洒掉。杯子太薄、杯沿太软的杯子会大大破坏客户的心情,而且在怀疑奶茶杯杯子品质的同时,务必会怀疑奶茶的质地。按规格定做一次性奶茶杯时,应该要留神哪些的解说。
  When choosing a milk cup, the thickness of the material should be initially considered. It is too soft to hold the milk cup with your hand. It can not be held out without effort. Take a glass of water to feel at home first, then hold it in your hand when you buy it to see if the thickness is enough. Others are the strength of the rim of the milk tea cup. The rim of the milk tea cup should be thick and strong enough, mainly with a well-proportioned material. When the milk tea is so full, the rim of the hand cup will not be spilled. Too thin cups and too soft rims can greatly destroy the mood of customers, and when you doubt the quality of milk tea cups, you must also doubt the quality of milk tea. When customizing disposable milk tea cups according to specifications, what explanations should be paid attention to?
  资源与环境是人类在21世纪录现的可连续推动所面临的壮大问题,生物技术将成为解这一问题的主要技术之一。其在造成环境污染的诸多成分中,塑料废弃物造成的公害已引致了社会的广泛眷注。当今世界上首要生产的降解塑料有美国、日本、德国、意大利、以色列和加拿大等等,品种有光降解、光-生物降解、崩坏性生物降解、彻彻底底生物降解等等类型。生物降解塑料指在土壤中能被微生物分解的塑料,借助于细菌或其水解酵素能将材料分解为二氧化碳、水、蜂巢状多孔的材质和盐类,它们更深一步经过微生物影响后可完完全全分解,重新进入生物圈,是当今各国研究与开发的热门。
  Resources and environment are the growing problems that mankind can continuously promote in the 21st century. Biotechnology will become one of the main technologies to solve this problem. Among the many components that cause environmental pollution, the pollution caused by plastic waste has attracted wide attention of the society. The main degradable plastics producing countries in the world today are the United States, Japan, Germany, Italy, Israel and Canada. The varieties include photodegradation, photobiodegradation, disintegrating biodegradation, thorough biodegradation and so on. Biodegradable plastics refer to plastics that can be decomposed by microorganisms in soil. With the help of bacteria or their hydrolytic enzymes, materials can be decomposed into carbon dioxide, water, honeycomb-like porous materials and salts. They can be completely decomposed after further microbial influence and re-enter the biosphere. It is a hot research and development topic in various countries.
  生物降解材料的降解本质,对生物降解材料的降解本质的测试当前还没有制订统一的标准,可选取包含被美国材料试验标准(ASTM)采纳或准备采纳的方法作为标准的方法,通过生学和微生物的实验手段来估计的首要方法有下列几种。土埋法,土埋法有室外土埋法和室内土埋法两种,其微生......生物降解的降解本性及其揣度对生物降解材料的降解本质的测试如今还没有制订统一的标准,可采取蕴含被美国材料试验标准(ASTM)采纳或准备采纳的方法作为标准的方法
  The degradation nature of biodegradable materials and the testing of the degradation nature of biodegradable materials have not yet formulated a unified standard. The methods adopted or prepared for adoption by ASTM can be selected as the standard methods. The primary methods for estimating the degradation nature of biodegradable materials through biological and microbiological experiments are as follows. There are two kinds of burial methods: outdoor burial method and indoor burial method. The degradation nature of micro-biodegradation and its conjecture have not yet established a unified standard for testing the degradation nature of biodegradable materials. The method containing the method adopted or prepared for adoption by ASTM can be adopted as the standard method.
                         可降解颗粒
  而且在创建少量塑料制品(如建筑材料等)时,我们不希望它降解而是希望它越经久耐用越好。这种需求也决定了不可降解材料还有存在的必要。 PHA的优点大堆,但这种材料还有少量不尽如人意的地方,譬如分子链结构使得它比较容易结晶,这体现着PHA制作的材料很是“脆”,经不起长期使用和强力的冲击。它的亲水性也不好,会限制它在生物学领域的应用。此外,PHA中,PHB的熔点与分解的温度很接近,也就是说加工温度稍高,它就分解了,而温度低则会使其不易成型。
  And when we create a small amount of plastic products (such as building materials), we don't want it to degrade, but we want it to last as long as possible. This demand also determines the necessity of the existence of non-degradable materials. PHA has many advantages, but there are a few unsatisfactory aspects in this material. For example, the molecular chain structure makes it easier to crystallize, which reflects that the material made by PHA is very "brittle" and can not withstand long-term use and strong impact. Its hydrophilicity is not good, which will limit its application in the field of biology. In addition, in PHA, the melting point of PHB is very close to the decomposition temperature, that is to say, if the processing temperature is slightly higher, it will decompose, while the low temperature will make it difficult to form.

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