日本免费一区尤物-日本免费在线视频-日本免费在线一区-日本免费中文字幕在线看-日本嫩小xxxxhd-日本欧美成

dual liquid silicone low pressure molding
Two-Component Liquid Silicon Introduction

      Two-component liquid silicon consists of two parts, A and B, which are flowable. The B component contains platinum catalyst or other auxiliary, two components need to be mixed together in a certain proportion into the heated mold to solidify. It can be cured at room temperature or cured faster by higher temperature.

      Two-component liquid silicon is generally divided into two categories: condensation type and addition type. The condensation type has poor adhesion to the components and the encapsulated cavity, and the low molecular substance will be released in the curing process. Therefore, the condensation type has obvious shrinkage in the curing process, while the addition type has almost no shrinkage. For electronic products, addition type liquid silicon is generally used, combined with special two - component liquid silicon equipment and rapid vulcanization of colloids under the condition of heating.

Two-component liquid silicon features:

1. Flame retardant: up to grade UL94-V0.

2. High tensile and high anti - tearing, not easy to deform.

3. It is not restricted by product thickness and can be vulcanize to a great depth.

4. Shrinkage is less than one thousandth, no low molecular produced, high accuracy.

5. Good fluidity and easy potting, can be cured at room temperature or cured by heating.

6. Can be adjusted to low viscosity for smaller components or for small gaps in the component.

7. It can be specially adjusted to be transparent or non-transparent according to customer requirements. 

8. Food grade non-toxic and tasteless. Comply with FDA food certification and SGS environmental materials certification.

9. Excellent chemical resistance, corrosion resistance, yellowing-resistant, thermal stability and weather resistance (service temperature -60℃--250℃).   

Two-component liquid silicon specification

Specification

Color

Transparent and non-transparent (multiple colors)

A、B ratio

1:1~10:1

Part A viscosity(10000CPS)

8.5—9

Operable time(25℃/min)

20-60

Cure time 60℃-150℃/Min

15~3

Potting temperature(℃)

75~160

Density(g/m3)

0.9~1.5

Viscosity(cps)

1800~3200

Hardness(JIS A)

30~50

Elongation(%)

300-650

Tearing strength(KN·m-1)

≥20

Thermal conductivity [W(m·K)]

≥0.2

Dielectric strength(kV/mm)

≥25

Dielectric constant(1.2MHz)

3.0~3.3

Flammability rating

94-V1

Note: different specifications of the silicon can be adjusted according to customer demand. Includes different viscosity, color transparency hardness, etc. 

主站蜘蛛池模板: jyzzjyzz国产免费观看 | 一本色道久久综合一区 | 精品国产日韩一区三区 | 青青偷拍视频 | 嫩草网站永久入口 | 3344成年在线视频免费播放男男 | 欧美国一级毛片片aa | 国内精品久久久久久 | 天天爽夜夜爽免费看 | 亚洲天堂男人网 | 尤物精品在线 | 日日夜干 | 日韩在线三级 | 中文字幕在线观看日韩 | 国产精品成人免费综合 | 日韩色视频 | 一类毛片 | 久久三级精品 | 久久一区二区三区不卡 | 久久996国产精品免费 | 日本一级不卡一二三区免费 | 亚洲午夜精品aaa级久久久久 | 成人国产精品999视频 | 国产大片91精品免费看3 | 久久99国产亚洲高清观看首页 | 日韩字幕一中文在线综合 | 成人污污视频 | 中文字幕狠狠干 | 欧美一级成人 | 日韩色吧| 色婷婷5月 | 免费欧美日韩 | 欧美老熟妇bbbb毛片 | 手机看片精品国产福利盒子 | 伊人久久天堂 | 国产成人影院 | 日韩美女视频一区 | 美国高清美女做性视频 | 99久久99久久精品免费看子伦 | 黄视频免费| 欧美影院天天5g天天爽 |