有機錫熱穩(wěn)定劑及其應(yīng)用
法國阿托菲納化學(xué)公司 張維學(xué)
PVC Stabilizers PVC及熱穩(wěn)定劑
THERMAL STABILIZERS FOR PVC
阿托菲納穩(wěn)定劑系列
THERMOLITE防熱靈官能團
TIN MERCAPTIDES〔Sn-S〕硫醇錫
THERMOLITE：Mono/di SYNERGISM
Formulation：chance or necessity?
PVC配方中主要添加劑的作用
Processing of neat PVC resin
純PVC樹脂的加工表現(xiàn)
●Product obtained after 2 mn(iea residence time comparable to what is faced in most processing equipments)
純PVC樹脂在雙輥上加工兩分鐘后的狀態(tài)
Processing of neat PVC resin
●Pure PVC resin cannot be processed：純PVC樹脂不可加工
－Poor thermal stability（accompanied by hydrochloric acid evolvement,HCL）很差的熱穩(wěn)定性（氯化氫產(chǎn)生出來）
－Strong sticking on hot metal parts很容易粘在熱金屬表面
●Two necessities for ALL processing routes：在PVC加工過程中兩個必要因素
－Add thermal stabilizers添加熱穩(wěn)定劑
－Add lubricants添加潤滑劑
Effect of the addition of lubricants添加潤滑劑的效果
●The test on two-roll mill is repeated with additon of lubricants to the resin以下配方PVC中只加入潤滑劑（在雙輥上加工兩分鐘）
●Internal lubricant:decrease of friction between the intermolecular chains (red uc e self heating and melt viscosity)內(nèi)潤滑劑減少分子鏈間的摩擦（減少摩擦熱和熔體粘 度）
●External lubricant:decrease of friction and sticking at the interface between the melt and the metallic parts。
外潤滑劑降低PVC物料與金屬表面的摩擦和防止物料粘到金屬表面
Effect of the addition of lubricants
Effect of the addition of lubricants
●Colour improvement (less friction)
加潤滑劑后由于磨擦減少，樣品顏色改善
●PVC can remain on the machine several minutes without sticking PVC
樣品在雙輥上壓延兩分鐘后沒有粘料
●Lubricants are NECESSARY,but [ZZ(Z]stabilization[ZZ)] is also required
此試驗證明潤滑劑在配方中的必要性，但是穩(wěn)定劑系統(tǒng)更是不可缺少
Lubrcants
fatty alcohols/glycerol esters脂肪醇及甘油酯
fatty acid esters with polyols多元醇脂肪酸醋
fatty acids脂肪酸
fatty acids diamides脂肪酰胺
montan esters褐煤酯
montan acids褐煤酸
oxidized polyethylene wax氧化聚乙烯蠟
polyethylene wax聚乙烯蠟
paraffin wax石蠟
Comparison of the stabilizers
●Compared efficiency(195℃)
此樣品比較是在PVC配方中加入不同穩(wěn)定劑及潤滑劑后的結(jié)果
Comparison of the stabilizers
