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从动物胶到橡皮糖：一种高粘度材料的发展史
动物胶是一种古老的材料，可以追溯到古埃及时期，当时人们就利用它来制作衣服和鞋子。随着时间的推移，动物胶的用途也在不断发展，它被用于制作纸张、绳索、帆布和其他各种材料。
19世纪末，科学家们开始研究动物胶的化学特性，并发现它具有高粘度，可以用来制作胶带和胶粘剂。在20世纪初，科学家们开始研究如何利用动物胶制作橡皮糖，并发明了一种新的制作方法，使橡皮糖的口感更加柔软。
今天，动物胶仍然被广泛用于制作各种材料，其中包括橡皮糖、胶带和胶粘剂。它的高粘度使它成为一种非常有用的材料，可以用来制作各种产品，从而满足人们的需求。因此，从动物胶到橡皮糖，一种高粘度材料的发展史可以说是一段令人瞩目的历史。
在过去的几千年里，人们一直在寻找一种能够满足他们需求的高粘度材料。从古埃及的动物胶到现代的橡皮糖，这种材料的发展史可以追溯到古代。本文将探讨动物胶到橡皮糖的发展史，以及它们在不同时期的应用。
Throughout the past few thousand years, people have been searching for a high viscosity material that can meet their needs. From ancient Egyptian animal glue to modern day chewing gum, the history of this material can be traced back to antiquity. This essay will explore the development of animal glue to chewing gum, and their applications in different periods.
The earliest form of animal glue was used in ancient Egypt, where it was made from the hides of animals. This glue was used to bind together objects such as pottery and furniture. It was also used to make papyrus, a type of paper made from reeds. Animal glue was also used in the construction of boats and other vessels.
In the Middle Ages, animal glue was replaced by a more advanced form of glue made from fish. This glue was used to bind together books and manuscripts, as well as to make musical instruments. It was also used to make furniture and other objects.
| 品 名 | 明胶 | 数 量 | 560件 | 报告日期 | 2023-10-20 | ||||||
| 客 商 | 样品 | 批 号 | 231018 | 检验依据 | 参照GB6783-2013和合同要求 | ||||||
| 生产日期 | 2023-10-18 | 规 格 | 25KG | ||||||||
| 理 化 指 标 | |||||||||||
| 项 目 | 单 位 | 指标要求 | 检验结果 | ||||||||
| 感官要求 | / | 淡黄色至黄色 | 淡黄色 | ||||||||
| / | 固体状 | 固体颗粒 | |||||||||
| / | 无不适气味 | 无不适气味 | |||||||||
| 水 分 | % | ≤14.0 | 8.7 | ||||||||
| 灰 分 | % | ≤2.0 | 0.8 | ||||||||
| 恩氏粘度 | E° | 6.67;40℃ | 6.6 | ||||||||
| 凝冻强度 | Bloom g | ≥50 | 120-300 | ||||||||
| 透 射 比 | % | 波长450nm≥30 波长620nm≥50 | 波长450nm:74 波长620nm:91 | ||||||||
| 水不溶物 | % | ≤0.2 | 0.01 | ||||||||
| 二氧化硫 | mg/kg | ≤30 | 13 | ||||||||
| 过氧化物 | mg/kg | ≤10 | 未检出 | ||||||||
| 总砷（以As计） | mg/kg | ≤1.0 | 未检出 | ||||||||
| 铬（以Cr计） | mg/kg | ≤2.0 | 0.5 | ||||||||
| 铅（以Pb计） | mg/kg | ≤1.5 | ≤1.0 | ||||||||
| 微 生 物 指 标 | |||||||||||
| 项 目 | 单 位 | 指标要求 | 检验结果 | ||||||||
| 菌落总数 | CFU/g | ≤10000 | 500 | ||||||||
| 沙门氏菌 | /25g | 不得检出 | 未检出 | ||||||||
| 大肠菌群 | MPN/g | ≤3 | <0.3 | ||||||||
| 来 源 | 安全非疫区 | ||||||||||
| 检验结论 | 合 格 | ||||||||||
In the 19th century, animal glue was replaced by a more modern form of glue made from rubber. This glue was used to bind together objects such as shoes and furniture. It was also used to make rubber balloons and other toys.
The modern form of animal glue is known as chewing gum. Chewing gum is made from a combination of sugar, gum base, and flavorings. It is used to freshen breath and to provide a sweet taste. Chewing gum is also used to relieve stress and to help people focus.
In conclusion, animal glue has been used throughout history to bind together objects and to make various products. From ancient Egypt to modern day chewing gum, the development of this material has been an important part of human history.
