医院用的石膏粉与普通工业或建筑用石膏粉存在显著差异，其特殊性主要体现在医疗适用性、性能稳定性和安全保障性等方面，这些特性是满足临床治疗需求的关键。

　　The gypsum powder used in hospitals has significant differences from ordinary industrial or construction gypsum powder, and its special characteristics are mainly reflected in medical applicability, performance stability, and safety assurance. These characteristics are key to meeting clinical treatment needs.

　　从成分纯度来看，医院用石膏粉有着极高的纯净度要求。它以天然石膏为原料，经过严格的筛选、煅烧和研磨工艺，去除了原料中含有的杂质，如泥沙、重金属、微生物等。高纯度的成分能减少对人体组织的刺激，降低伤口感染的风险，尤其适用于直接接触皮肤或创口的固定场景，这是普通石膏粉难以达到的标准。

　　From the perspective of ingredient purity, hospital gypsum powder has extremely high purity requirements. It uses natural gypsum as raw material and undergoes strict screening, calcination, and grinding processes to remove impurities such as sediment, heavy metals, microorganisms, etc. contained in the raw material. High purity ingredients can reduce irritation to human tissues and lower the risk of wound infection, especially suitable for fixed scenarios where there is direct contact with the skin or wounds, which is a standard that ordinary gypsum powder cannot meet.

　　凝固时间的可控性是其重要特性之一。医院用石膏粉在与水混合后，凝固时间需在临床操作的合理范围内，一般可通过调整石膏粉的颗粒大小、煅烧温度等工艺参数进行精确控制。例如，用于骨折临时固定的石膏粉，凝固时间通常控制在 5-15 分钟，既能保证医生有足够时间塑形，又能快速硬化形成稳固支撑；而用于制作模具的石膏粉，可能需要更长的凝固时间以确保塑形精度。这种可控性避免了因凝固过快影响操作或过慢延误治疗的情况。

　　The controllability of solidification time is one of its important characteristics. After mixing gypsum powder with water in hospitals, the solidification time should be within a reasonable range of clinical operation. Generally, precise control can be achieved by adjusting process parameters such as particle size and calcination temperature of gypsum powder. For example, the setting time of gypsum powder used for temporary fixation of fractures is usually controlled within 5-15 minutes, which can ensure that doctors have enough time to shape and quickly harden to form stable support; The gypsum powder used for making molds may require a longer solidification time to ensure molding accuracy. This controllability avoids situations where too fast solidification affects the operation or delays treatment.

　　凝固后的强度与透气性平衡是其核心优势。医院用石膏粉凝固后需具备足够的强度，能为骨折部位提供稳定的支撑，防止断骨移位，促进骨骼愈合。同时，它还需具备一定的透气性，允许皮肤正常呼吸和汗液蒸发，减少因长期包裹导致的皮肤潮湿、瘙痒甚至感染。这种强度与透气性的平衡，是通过优化石膏晶体结构实现的，普通石膏粉往往难以兼顾两者。

　　The balance between strength and breathability after solidification is its core advantage. After the solidification of gypsum powder in hospitals, it needs to have sufficient strength to provide stable support for the fracture site, prevent bone displacement, and promote bone healing. At the same time, it also needs to have a certain degree of breathability, allowing the skin to breathe normally and sweat to evaporate, reducing skin moisture, itching, and even infection caused by long-term wrapping. The balance between strength and breathability is achieved by optimizing the crystal structure of gypsum, which is often difficult to balance with ordinary gypsum powder.

　　无菌性是医院用石膏粉的基本要求。在生产过程中，石膏粉需经过严格的灭菌处理，如高温灭菌、辐射灭菌等，确保产品不含致病菌。灭菌后的石膏粉会采用无菌包装，防止运输和储存过程中的二次污染。这种无菌特性对于开放性骨折、术后伤口固定等场景至关重要，能直接降低交叉感染的风险，保障患者的治疗安全。

　　Sterility is a basic requirement for hospital gypsum powder. During the production process, gypsum powder needs to undergo strict sterilization treatment, such as high-temperature sterilization, radiation sterilization, etc., to ensure that the product does not contain pathogenic bacteria. The sterilized gypsum powder will be packaged sterile to prevent secondary contamination during transportation and storage. This aseptic property is crucial for scenarios such as open fractures and postoperative wound fixation, as it can directly reduce the risk of cross infection and ensure the safety of patient treatment.

　　可塑性与贴合度也是其突出特点。医院用石膏粉在凝固前具有良好的可塑性，医生可根据患者肢体的形态进行精确塑形，使石膏固定更加贴合肢体轮廓，提高患者的舒适度，同时避免因固定不牢导致的治疗效果不佳。例如，在关节部位的固定中，石膏粉能随肢体曲线塑形，既保证固定效果，又减少对关节周围组织的压迫。

　　Plasticity and fit are also prominent features of it. Gypsum powder used in hospitals has good plasticity before solidification. Doctors can accurately shape the patient's limbs according to their shape, making the plaster fixation more in line with the contour of the limbs, improving the patient's comfort, and avoiding poor treatment results caused by weak fixation. For example, in the fixation of joint parts, gypsum powder can shape the body according to the limb curve, ensuring the fixation effect and reducing the compression on the surrounding tissues of the joint.

　　此外，医院用石膏粉还具有良好的耐水性和稳定性。在患者进行局部清洁或接触少量水分时，凝固后的石膏不易软化或溃散，能维持固定形态；同时，它在常温下化学性质稳定，不易与皮肤分泌物、药物等发生反应，减少对皮肤的刺激。

　　In addition, gypsum powder used in hospitals also has good water resistance and stability. When patients undergo local cleaning or come into contact with a small amount of water, the solidified gypsum is not easily softened or collapsed, and can maintain a fixed shape; At the same time, it has stable chemical properties at room temperature and is not easily reactive with skin secretions, drugs, etc., reducing irritation to the skin.

　　本文由济南石膏粉友情奉献.更多有关的知识请点击:http://www.jnfhjc.com真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Jinan gypsum powder For more information, please click: http://www.jnfhjc.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.