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有机硅乳液培训

NOL
Condensation 缩合 SiOH + SiCl Si O Si + HCl
4 SILOXANE BOUND 硅氧烷键
CHLOROSILANES MONOFONCTIONNELS MONOFUNCTIONNAL CHLOROSILANES
8
CH 3 O
Si
H CH 3 H O
M, M ’ groups
Si
CH 3 O
Si
D, D ’ groups
Si
T groups
Si
FROM SAND TO sable aux GOODS le cheminement du FINISHED produits finis
Sand Silica Chlorosilanes Dichlorosilanes Hydrolysis dihydroxy
反应性,可与其他羟基反应或形成 氢键
12
CH3
CH3
What can be attached to an atom of silicon?
什么样的基团可以连接到硅上?
The vinyl group or CH=CH2
CH3
O Si O
乙烯基
CH3
Si O
CH3 H
Si C H C H
CH3
CH CH2
什么样的基团可以连接到硅上?
The methyl group or CH3
CH3
O Si O
甲基 Non-reactive, 非反应性 anti-adhesive effect, 防粘附效果 release coatings effect, 离型涂层效果 water repellent, 防水剂 antifoams 消泡剂
Non reactive Fume Silica 白炭黑 (二
All
Chlorosilanes
Co -hydrolysis Trihydroxy gums resins Elastomers dihydroxy
oils
Reactive reactive
oils
Emulsions, Antifoams Pastes and greases
CH3
Si C H H H
CH3
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What can be attached to an atom of silicon?
什么样的基团可以连接到硅上?
The hydroxyl group or OH
CH3
O H Si O Si O
羟基
CH3
H
Reactive, able to attach to other OH groups whether by magnetic attraction or with water releasing
硅油 EMULSIONS 乳液 ANTIFOAMS 消泡剂 PASTES 硅膏 GREASES 硅脂
GUMS 硅胶
RTV
BICOMPOSANTS MONOCOMPOSANTS
双组份、单组份
RESINS
树脂
10
SOLID PRODUCTS 硬产品
What can be attached to an atom of silicon?
自然界不存在纯硅
Le Silicium
Can be obtained by chemical reduction from sand:但可以用化学还 原法从砂石中得到: SiO 2 + 2C 4,350 F
2
Si
+
2 CO
METHYLCHLOROSILANES SYNTHESIS 甲基氯硅烷合成
Reaction between methylene chloride and silica 氯甲烷与硅石 反应
可与乙烯基加成反应,形成网络。 在碱存在下将产生氢气:氢氧化钠、 三乙醇胺或氢氧化钾
14
CH3
CH3
CH3
Where can these groups be placed?
什么样的基团可以连接到硅上?
Vinyls/hydrogens links
乙烯基/氢基连接
Chain terminators
链端
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1. 有机硅基础知识总结
有机硅基础化学 有机硅原料/产品 有机硅结构与性能
硅砂 单质硅 硅烷 硅烷的水解 硅烷的缩合 硅烷的加成
硅油 硅树脂
主侧链结构
硅橡胶
白炭黑 催化剂 主要性能
交联剂
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2.乳液基础知识
Emulsion is a category of product form.

Silicone;(有机硅) Acrylic;(丙烯酸) Polyurethane;(聚氨酯) …
Silicone:(有机硅)

Non-reactive oil(不反应性的硅油): 47V, etc. Reactive oil(反应性的硅油): 48V, H68, 11367, etc.
CH3
It is the hook which opens in the presence of a catalyst during the application by the customer
用户使用时借助于催化剂可与含氢硅 氧烷反应
13
What can be attached to an atom of silicon?
Oil(油) 油滴被如乳化剂分子包 围并分散在水里 Water(水)
BEFORE(乳化前) Separated two phases(分层的两相)
AFTER: EMULSION人(乳化后) Compatible two phases 连续相和分散相在乳化剂作用下相容
21
2.乳液基础知识
Many products can be made into emulsions. (许多产品可以制成乳液)
单官能团硅烷
1 chlorine atom is hydrolysable R3SiCl + H2O 2R3SiOH
只有一个氯原子可水解
R3SiOH + HCl R3SiOSiR3 + H2O
Condensation cannot go further. These molecules can be used to block (end) polysiloxane chains.
(乳液是一种产品形态而非功能/用途)
In RSS we already have: RTV-使用工艺; Sealant-用途; AAP-用途; Emulsion-A aqueous form of silicones.(多种硅产品的水体 系)
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2.乳液基础知识
Definition: it is a fine and stable dispersion of a liquid in one another, both liquids being non-miscible. 定义:两种不混溶的液体,其中一种以细小的形态而稳定地 分散在另一种中
RTV 1 RTV 2
HCR
9
LES GRANDES FAMILLES.... PRODUCT RANGE 有机硅系列产品 THE PRODUCTS 产品 产品 OILS
Si O Si O Si
形态
LIQUID PRODUCTS : MORE OR LESS VISCOUS 液态产品,多少有些粘稠 ELASTOMER PRODUCTS 弹性体产品
乳液培训大纲
1. 有机硅基础知识; 2. 乳液基础知识; 3. 有机硅乳液生产工艺; 4. 有机硅乳液测试方法;
5. 有机硅乳液HSE;
6. 有机硅乳液实验室讲解; 7. 有机硅乳液生产线讲解。
1
SILICON 硅元素
Most plentiful element on Earth (28%) after oxygen (46%)地球表层第二丰富的元素,仅次于氧 Does not exist pure in nature
乙烯基
Vinyls 乙烯基
Methyls
甲基
16
Methyls甲基 Hydrogens
氢基
Polyaddition:加成反应
Si H
Si
Pt
CH2 CH Si
CH2 CH2 Si
Temp - ECH
17
Properties of Polysiloxanes:有机硅氧烷的性能
Unlimited structural variations(不受限制的结构多样性) Between a mineral and a plastic(性能介于有机物和无机物之间) Stable, high performance polymers(稳定性好,高性能聚合物) Decisive properties: Thermal stability(-80~+250°C)热稳定性 Resisance to natural ageing(oxidation, UV)抗自然老化 Dielectric properties介电绝缘性能 Modular from release to adhesion 可调制的离型或粘附性能 Lubrication润滑性能 Exceptional harmless无害 …
R
6
R
CHLOROSILANES TRIFONCTIONNELS三官能团硅烷 TRIFUNCTIONNAL CHLOROSILANES

3 chlorine atoms RSiCl3 + 3H2O
are hydrolysable RSi (OH)3 R O O H O H +
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