高強(qiáng)度室溫硫化硅橡膠研究

材料科學(xué)論文編號(hào):CL047  論文字?jǐn)?shù):9763,頁(yè)數(shù):20

目  錄
中文摘要 I
英文摘要 II
目錄 III
1. 緒論 1
 1.1有機(jī)硅發(fā)展簡(jiǎn)史     1
 1.2室溫硫化硅橡膠（RTV）的發(fā)展和用途 2 
 1.3室溫硫化硅橡膠的特點(diǎn)與分類 5
 1.4固化機(jī)理及制備 6
     1.4.1固化機(jī)理 7
     1.4.2 制備設(shè)備及工藝介紹 7 
2.研究方向 7
3.實(shí)驗(yàn)部分 8
 3.1實(shí)驗(yàn)原料準(zhǔn)備 8
 3.2脫醋酸型RTV-1的制備 9
 3.3產(chǎn)品性能檢測(cè) 10
 3.4產(chǎn)品加速貯存測(cè)試 10
4. 結(jié)果與討論 11
 4.1氣相法二氧化硅對(duì)拉伸強(qiáng)度的影響 11
 4.2氣相法二氧化硅對(duì)斷裂伸長(zhǎng)率的影響 12
 4.3甲基三乙酰氧基硅烷用量對(duì)固化深度的影響 13
 4.4甲基三乙酰氧基硅烷用量對(duì)拉伸強(qiáng)度的影響 13
5．總結(jié)與展望 15
致謝 16
參考文獻(xiàn) 17

摘 要：硅橡膠具有耐高溫、耐低溫、防潮、絕緣、耐老化等優(yōu)異性能，被廣泛應(yīng)用于國(guó)民經(jīng)濟(jì)眾多領(lǐng)域，尤其是室溫硫化硅橡膠。由于純室溫硫化硅橡膠力學(xué)性能較差，因此加入補(bǔ)強(qiáng)填料才具有使用價(jià)值。通常采用白炭黑作為補(bǔ)強(qiáng)填料，為了降低成本，人們尋找其他廉價(jià)易得的填料來(lái)代替，然而大都只能作為增量劑而無(wú)補(bǔ)強(qiáng)特性。本課題來(lái)自生產(chǎn)實(shí)際，目前提高室溫硫化硅橡膠的強(qiáng)度多集中在填料研究上，而對(duì)用量較少的交聯(lián)劑研究甚少，這不利于無(wú)論是工廠或是科研工作者對(duì)室溫硫化硅橡膠的認(rèn)識(shí)，從而使得在研究中難免盲目地去研究或是改性室溫硫化硅橡膠。本課題擬在不同型號(hào)的白炭黑和相同型號(hào)不同用量的白炭黑對(duì)膠硫化后的力學(xué)性能做出評(píng)價(jià)，并選用不同型號(hào)交聯(lián)劑（甲基三乙酰氧基硅烷）和相同型號(hào)不同用量的交聯(lián)劑對(duì)膠力學(xué)性能的影響做分析，通過以上兩個(gè)評(píng)判，選取最佳點(diǎn)重現(xiàn)，以此為依據(jù)提高室溫硫化硅橡膠的力學(xué)性能。

關(guān)鍵詞：有機(jī)硅材料；室溫硫化硅橡膠；甲基三乙酰氧基硅烷；RTV；  膠粘劑

Abstract: Silicone rubber with high temperature, low temperature, moisture, insulation, anti-aging excellent performance, are widely used in many areas of the national economy, in particular silicone rubber. As the pure silicone rubber poor mechanical properties, so it has a value adding reinforcing filler. Commonly used silica as a reinforcing filler, in order to reduce costs, people look for other cheap and easy to get a filler to replace, but mostly only as extender without reinforcement properties. The subject comes from actual production, the current increase the strength of silicone rubber and more focused on filling research and study on the amount of crosslinker little less, is not conducive to either plant or a research worker to room temperature vulcanized silicone understanding of rubber, which makes it inevitable blind study to study, or modified silicone rubber. The aim of this in different types of silica and the same model with different amount of silica on the mechanical properties of rubber vulcanization made after the eva luation, and use different types of cross-linking agent (methyl 3-acetoxy-silane) and the same amount of different models crosslinking agent on the mechanical properties of rubber to do analysis, by these two judges to select the best point to reproduce, as a basis to improve room temperature mechanical properties of silicone rubber.

Keywords：Organic silicon material; room temperature vulcanized silicone rubber; methyl 3-acetoxy-silane; RTV; adhesive