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SH-1068有机硅树脂

本品是一种含有硅羟基的甲基苯硅树脂中间体,具有良好的相容性与高反应活性,可以与丙烯酸、聚酯、环氧复配并参与交联固化反应;通过复配或者聚合改性的方式引入有机硅中间体。

所属分类:

硅树脂


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产品描述

 SH-1068有机硅树脂

一、性能及用途

      本品具有良好的耐热性、耐候性、相容性、保色保光性及反应活性,可以与丙烯酸、聚酯、环氧等有机树脂配合使用,改善耐热性、耐候性,抗粉化、抗开裂性能;本品室温下为固体,还可以直接或者复配到耐热、耐候性粉末涂料使用

二、主要技术指标

项       目

      标

试验方法

外       观

无色至淡黄色固体

GB1721

挥发分%

≤3

 

软化点

6090

GB/T12007.6-1989

甲苯中溶解性(1:1)

清澈透明

 

三、推荐应用

1、应用于粉末涂料行业,提搞涂层的耐热性和耐候性能,并且对涂层重涂性影响较其它固体硅树脂小;

2、应用于耐热工业涂料,一般可以通过复配的方式直接添加,添加比例对于耐温性的影响为关键,一般建议引入量≥15%(以有效固含计算);如能通过聚合接枝的方式引入,则能进一步提供更加均衡的性能;

3、应用耐候性聚硅氧烷涂料,通过与有机树脂的搭配,赋予涂层耐候性和耐盐雾性能的兼具,符合《HG/T 4755-2014 聚硅氧烷涂料》标准;

四、包装及贮运

一般为50KG塑料内衬纸桶包装,为防止结块,25以下阴凉干燥环境下密封储存,相应保质期为自生产之日起12个月。

五、施工参考

复配使用本品时,可以直接加入或先以溶剂溶解再加入到有机树脂中以配制涂料;接枝改性使用时,应以玻璃片测试方法测试其反应进程,以确保接枝充分;用作粉末涂料时则可以按照一般粉末涂料操作流程进行。

 

Organic Silicone Resin SH-1068

Ⅰ Properties & Uses

This product has good heat resistance, weather resistance, compatibility, color keeping and light keeping performance and reactivity. It can be used with acrylic, polyester, epoxy and other organic resins to improve the performance of heat resistance, weather resistance, chalking resistance, cracking resistance. This product is solid at room temperature, it can be used in heat and weather resistant powder coating by directly adding or compounding.


II Technical index

Items

Index

Test method

Appearance

Colorless to light yellow transparent solid

GB1721

Volatile matter %

≤ 3 %

 

Softening point (℃)

60-90

GB/T12007.6-1989

Solubility in toluene(1:1)

Clear and transparent

 

 

Recommended applications

  1. Used in the powder coating industry, improving heat resistance and weather resistance. Has less impact on the recoating properties than other solid silicone resin;
  2. Used in heat-resistant industrial coatings, usually it can be added directly by means of compounding. The effect of different adding ratios on temperature resistance is the more critical, and the generally recommended introduced amount should be 15%(calculated by effective solid content). More balanced performance would further provide if introduced by means of polymerization grafting.
  3. Used in weather-resistant polysiloxane coatings, combined with organic silicone resin, giveing the coating weatherability and salt spray resistance. It meets the standards of HG/T 4755-2014 polysiloxane coatings

Ⅳ Packaging and storage

Generally be packed in 50kg plastic inner lining paper drums,sealed stored in a cool and dry environment under 25. The shelf life is generally 12 months from the date of production.

Construction reference

When this product is compounded used, it can be added directly or dissolved in solvent and then added to organic resin to prepare coating; when it is grafting modified used, the reaction process should be tested by glass test method to ensure entirely grafting. When used as powder coating, it can be carried out according to the general powder coating operation process.

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