熱塑性丁苯橡膠主要有四大用途：橡膠制品、瀝青改性劑、膠黏劑和樹脂改性劑。在橡膠制品方面，適于制造鞋底、玻璃門窗密封膠條、膠板、墊圈、膠管和膠帶等。作為樹脂改性劑，SBS分別與PP、PE、PS共混物，可明顯改善制品的低溫性能和抗沖擊性能，SBS用于膠粘劑，具有高固體物質(zhì)含量、快干、耐低溫的特點；SBS作為路面瀝青改性劑，可明顯改進(jìn)瀝青的耐候性和耐負(fù)載性能。

Thermoplastic styrene butadiene rubber has four main uses: rubber products, asphalt modifier, adhesive and resin modifier. In terms of rubber products, it is suitable for manufacturing shoe soles, glass door and window sealant strips, rubber plates, gaskets, rubber hoses and tapes. As a resin modifier, SBS blends with PP, PE and PS can significantly improve the low-temperature properties and impact resistance of products. SBS used in adhesives has the characteristics of high solid content, quick drying and low-temperature resistance; As a pavement asphalt modifier, SBS can significantly improve the weatherability and load resistance of asphalt.

熱塑性丁苯橡膠的熱塑性彈性體分子鏈的結(jié)構(gòu)特點是由化學(xué)組成不同的樹脂段(硬段)和橡膠段(軟段)構(gòu)成。硬段的鏈段間作用力足以形成“物理交聯(lián)”，軟段則是具有較大自由內(nèi)旋轉(zhuǎn)能力的高彈性鏈段；而軟硬段又以適當(dāng)?shù)拇涡蚺帕胁⒁赃m當(dāng)?shù)姆绞铰?lián)接起來。

The molecular chain of thermoplastic elastomer of thermoplastic styrene butadiene rubber is composed of resin segment (hard segment) and rubber segment (soft segment) with different chemical composition. The force between the hard segments is enough to form "physical crosslinking", while the soft segment is a highly elastic segment with greater free internal rotation; The soft and hard segments are arranged in appropriate order and connected in appropriate ways.

硬段的這種物理交聯(lián)是可逆的，即在高溫下失去約束大分子組成的能力，呈現(xiàn)塑性。當(dāng)溫度降室溫時，這些“交聯(lián)”又恢復(fù)，起到類似硫化橡膠交聯(lián)點的作用。正是由于熱塑性彈性體的這種鏈結(jié)構(gòu)特點和交聯(lián)狀態(tài)的可逆性，使它在常溫下顯示硫化膠的彈性、強度和形變特性等物理機械性能，可代替?zhèn)鹘y(tǒng)硫化膠制造某些橡膠制品。

The physical crosslinking of hard segment is reversible, that is, it loses the ability to restrict the composition of macromolecules at high temperature and presents plasticity. When the temperature drops to room temperature, these "crosslinks" resume, playing a role similar to the crosslinking point of vulcanized rubber. Because of the chain structure and the reversibility of crosslinking state of thermoplastic elastomer, it shows the physical and mechanical properties such as elasticity, strength and deformation of vulcanizate at room temperature, and can replace the traditional vulcanizate to manufacture some rubber products.

在高溫下硬段會軟化或熔化，在加壓下呈現(xiàn)粘性流動，顯現(xiàn)熱塑性塑料的加工特性，可采用注射成型和吹塑成型等熱塑性塑料的方法，比傳統(tǒng)硫化橡膠常用的壓縮、擠出、壓延成型速度快、周期短，所需后硫化設(shè)備少，生產(chǎn)費用低。

The hard segment will soften or melt under high temperature, and show viscous flow under pressure, showing the processing characteristics of thermoplastic. Injection molding, blow molding and other thermoplastic methods can be used, which has faster compression, extrusion and calendering molding speed, shorter cycle, less post vulcanization equipment and lower production cost than those commonly used for traditional vulcanized rubber.

氫氧化鉀廠家認(rèn)為熱塑料彈性體還可用真空、吹塑成型等傳統(tǒng)橡膠不能使用的迅速、經(jīng)濟的方法加工。重復(fù)加工對其性能或加工特性無明顯損害，廢品和邊角料可重新加工，用過材料可與新料一起使用，大大提高了材料利用率，極大地減少環(huán)境污染，被認(rèn)為是環(huán)境友好材料。

Potassium hydroxide manufacturers believe that thermoplastic elastomers can also be processed quickly and economically by vacuum, blow molding and other methods that traditional rubber cannot use. Repeated processing has no obvious damage to its performance or processing characteristics. Waste products and leftover materials can be reprocessed. Used materials can be used together with new materials, which greatly improves the utilization rate of materials and greatly reduces environmental pollution. It is considered as an environmentally friendly material.

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