Welcome to the official website of Dongguan Minz Rubber & Plastics Co., Ltd.

中文简体  | English

Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.

18 yearsFocus on R & D and production of silicone rubber products

Become a respected supplier of silicone rubber products

Service Hotline:

+86-136 6988 8704

Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.
18 years focus on silicone rubber products research and development and production
Professional customization

Dongguan Minz Rubber & Plastics Co., Ltd.

Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
Tel: +86-0769-8665 2688
Fax: +86-796-8180 6477
Contact: Miss Li +86-136 6988 8704
Mailbox:lixiaoxia@dgminz.com.cn

How to divide the standard of silicone products with heat resistance

How to divide the standard of silicone products with heat resistance

2020-11-14 16:17:07

The heat resistance of rubber products means that rubber products can still adhere to their original functions and utilization values under the influence of high, high and high temperatures for a long time. The heat resistance of rubber products depends on the varieties and types of rubber used. Therefore, when redesigning the formula, silicone products must understand the heat resistance of rubber raw materials. 1. When the temperature requested by the working environment is 70 to 100 degrees Celsius, natural rubber and styrene butadiene rubber are selected individually. 2. When the temperature requested by the working environment is 100 to 130 degrees Celsius, neoprene rubber silicone key rubber, nitrile rubber and epichlorohydrin rubber are selected individually. 3. When the requested temperature of the working environment is between 130 and 150 degrees Celsius, base rubber, ethylene-propylene rubber and chlorosulfonated polyethylene rubber are individually selected, and mechanical gaskets in the shape of O-rings are annular elastic bodies. The cross-sectional sealing ring is circular and is generally fixed in a groove. During the assembly process, it will be compressed by two or more components, thus generating a sealed interface. 4. When the requested temperature of the working environment is between 150 and 180 degrees Celsius, the liquid silica gel is individually selected from acrylic rubber and hydrogenated nitrile rubber. 5. When the temperature requested by the working environment is one hundred and eighty to two hundred degrees Celsius, vinyl silicone rubber and fluorine rubber are selected individually. How to divide the silicone tube standard? According to the production materials, the use environment and the use requirements, the silicone tube can be divided into industrial-grade silicone tube, food-grade silicone tube and sanitary-grade silicone tube. Different types of silicone tube have strict quality division and quality requirements. Due to the special chemical properties and temperature resistance of silicone rubber raw materials, they are widely used in industry, food, pharmaceutical and other industries to transport acid and alkali silicone key manufacturers, solvents and dust, particles and other solids. Industrial silicone tube is mainly the use of silicone tube special high temperature resistance and chemical inertness and aging resistance, can be a long time in the high temperature environment above 200 degrees continuous work, UV resistance, anti aging, usually used to transport industrial materials and seals chemicals, hose using ordinary silicone rubber material, through the extrusion process production. Food-grade silicone hose is made of silicone material that meets food-grade requirements, and peroxide is used for catalytic synthesis to ensure that the produced hose does not fall off. Food silicone rubber hose is a matching hose for food filling, especially alcohol, beverage and edible oil filling. Food silicone hose has good high temperature resistance, tear resistance and bending properties, and can swing for a long time, so it is also an ideal matching hose for peristaltic pumps. Hygienic silicone tube rubber button is a high clean silicone tube, the hose from the raw materials to meet the food hygiene standards, the entire production process needs to be produced in a high clean production workshop, silicone hose is widely used in the health pharmaceutical industry, high clean laboratories, biological laboratories and vacuum weighing and other high-end scientific research projects.

MORE
What are the bonding methods of silicone rubber products

What are the bonding methods of silicone rubber products

2020-11-12 10:40:30

Silicone rubber products are made of methyl vinyl silicone rubber as the base glue and various fillers (reinforcing agent, heat resistant agent, modifier, etc.) are added through mixing, bookflow, filtration, sulfur addition, molding, extrusion, bonding and other production processes. Silicone rubber products have excellent comprehensive properties and good technical and economic effects, and have been used in aviation, aerospace, atomic energy, electrical appliances, electronics, instruments, automobiles, machinery, metallurgy, chemical industry, medical and health, daily life, various silicone keys have been widely used in various fields, so what are the common problems of silicone rubber products. Silicone rubber mold why there will be less turnover. In the process of making the mold, too much silicone oil is added, and the silicone oil sealing ring destroys the molecular weight of the silica gel, so the mold will have the phenomenon of less mold turning times and not durable. If the mold is opened with silica gel with high hardness when making small products with complex patterns, the liquid silica gel with less mold turning times will appear, because the silica gel will be brittle and easy to break when it is too hard. On the contrary, if you do build products and use small hardness silicone to make molds, the results will also be unsatisfactory. Why silicone rubber mold will appear silicone products factory burning phenomenon. Because unsaturated resin and resin products are added with peroxide curing agent, a large amount of heat will be generated in case of resin reaction. Generally, the curing time of resin is 3 minutes, so after 3 minutes, the silicone key manufacturer should release the mold as soon as possible to prevent the silicone mold from burning. What is the technique of bonding silicone rubber products. 1, seal silicone rubber products use white oil or toluene to clean up the area where silicone rubber miscellaneous parts need to be pasted with double-sided tape<油污与水渍>, add diluent in proportion and stir well for use. 2. Note: Silicone and rubber have different materials. Silicone treatment agent is used for silicone miscellaneous parts and rubber treatment agent is used for rubber keys. The two rubber products cannot be mixed and used by mistake, otherwise it will lead to degumming after sticking double-sided adhesive. 3. Bonding skills of silicone rubber products: The treating agent is evenly applied to the areas where adhesive needs to be backed on the silicone rubber miscellaneous parts. After evenly applied, the silicone rubber miscellaneous parts are placed on the rubber keys in a cool and ventilated place for the treating agent to dry naturally. 4. After the processor on the silicone rubber miscellaneous parts is naturally air-dried, stick the double-sided adhesive on the area where the double-sided adhesive needs to be pasted on the silicone rubber miscellaneous parts. The silicone miscellaneous parts have been tightly bonded to the double-sided adhesive. </油污与水渍>

MORE
What is the reason for the unqualified detection of silicone products

What is the reason for the unqualified detection of silicone products

2020-11-06 10:02:51

Analysis of the reasons for the unqualified detection of silicone products. The hygiene and safety of silicone products are highly valued by European and American countries. It has been found many times that the pre-inspection and sampling of exported silicone products are unqualified. The unqualified hygiene indicators of silicone products require us to improve the following three reasons for silicone products and the lax quality control of raw materials. Some factories do not pay much attention to the raw materials used for kitchen tableware. Silicone raw materials with low quality grade are used for the production of food tool products without testing the raw materials. Silicone keys or unqualified color glue and additives are used for coloring in the production process, resulting in unqualified product hygiene. The production process is not standardized. Due to the particularity of the safety requirements of silicone tableware, food silicone products have very strict requirements on the production process. After the product is formed, it takes enough time for the sealing ring to remove volatile substances. In order to pursue efficiency, some factories do not have enough processing time for the products. Enterprises fail to pass the product use conditions. EU and other countries require product testing to be carried out in accordance with their predictable and strict use methods, most factories only produce liquid silica gel customer samples, do not understand the use and use conditions of the product, and are relatively blind in dealing with third-party testing, and even obviously inconsistent with the foreseeable use conditions of the product. Secondary vulcanization of silicone products, secondary vulcanization is also called post-vulcanization. The role of secondary vulcanization in silicone products factory: when silicone rubber is vulcanized with peroxide, peroxide decomposition causes polymer reaction, and low molecular compounds (such as benzene and benzoic acid) are generated in rubber, which will affect the mechanical properties of rubber. Silica gel is a kind of granular, glass silica gel button factory glass. Porous silica is synthesized to prepare sodium silicate. Silica gel has higher hardness than ordinary household gel-like gelatin and agar. It is a naturally occurring mineral refined and processed into any granular or beaded form. The scope of application is soft rubber insoles, sex products, seal handbag shoulder pads, soft toy gifts, fish baits, etc. What are the advantages of molded silicone products. 1. High and low temperature resistance (-30 degrees to 260 degrees). 2, waterproof, fireproof, dustproof. 3. Tensile, tear, earthquake resistance, stable performance, rubber products. 4. High wear resistance, high pressure resistance, soft, non-toxic, tasteless, and environmentally friendly. 5, can achieve the relevant certification of food grade and various exports, commonly used as a catalyst carrier in fluidized bed operations, when used as a catalyst carrier, silica gel is usually impregnated in a solution containing the active component of catalytic rubber keys, so that the solution is absorbed in the pores of silica gel, and the active components are distributed on the surface of silica gel through drying, activation and other procedures, the pore structure of silica gel has an important influence on the properties of the supported catalyst, such as the pore volume and pore size distribution of silica gel.

MORE
Silicone products molding category how to prevent static electricity

Silicone products molding category how to prevent static electricity

2020-11-03 09:32:37

Silica gel as the main raw material processing works, known as silica gel products, silica gel is a silica gel properly dehydrated from the particle size of different porous material, with an open porous structure, can absorb many substances, is a very good silica gel products desiccant, adsorbent and catalyst carrier, it is refined and processed into any granular or beaded form of naturally occurring minerals, so what are the types of silicone products molding. 1. Molded silica gel. Molded silica gel products are usually molded by applying pressure through a vulcanizer after putting solid silica gel raw materials added with vulcanizing agent into a high-temperature mold with silica gel keys. The hardness of molded silica gel is usually between 30°C and 70°C. The color of raw materials mixed with color paste is adjusted according to the sealing ring of Pan Tong color card number. The shape of the mold determines the shape of molded silica gel products, molded silicone products are widely used in the silicone industry at present. They are mainly used to make silicone industrial accessories, keys, silicone gifts, silicone bracelets, silicone watches, liquid silicone, key bags, mobile phone sets, silicone kitchenware, silicone pads, ice squares, cake molds, etc. 2, extruded silicone, extruded silicone products are usually extruded through the extruder silicone molding, generally extruded silicone shape is long, tubular silicone products factory can be cut at will, but the shape of the extruded silicone has limitations, widely used in medical equipment, food machinery. 3, liquid silicone, liquid silicone products are injection molded by silicone injection molding, the product is soft, silicone button manufacturers hardness can reach 10 °-40 °, because of its soft characteristics, in the simulation of human organs, medical silicone chest pad, etc. widely used. Silicone tube is the circulation of liquid, gas and other materials and coated carrier, in daily life, we all know that friction seal can be powered, in the production of silicone tube, silicone tube and human body clothes direct friction can produce static electricity, static electricity will bring some security risks, then the use of silicone tube how to prevent electrostatic measures. 1. For processes with electrostatic hazards and rubber products and equipment places, corresponding electrostatic safety measures should be adopted, and the electrostatic potential of the insulator should be controlled below the allowable value. 2. In areas where explosive gas may appear, strengthen ventilation measures to control the concentration below the lower explosive limit. Rubber keys. 3, where there is an explosion, fire hazard and to prevent the human body charged places, the operator to wear anti-static overalls, anti-static shoes or conductive shoes, the operating area should be laid conductive ground, conductive ground to ground resistance should be less than 10Ω, and must always maintain its conductive properties.

MORE
Three characteristics of car silicone keys

Three characteristics of car silicone keys

2020-10-30 16:00:37

First, the silicone buttons for automobile air conditioners include the front windshield defogging button, the wind blowing button, the wind direction adjustment button, the internal circulation button, the rear glass heating button, the air output adjustment button, etc. Second, the car DVD navigator silicone buttons, even the current high-tech touch screen technology, also indispensable silicone buttons, usually silicone buttons will be installed on the left and right sides of the DVD navigator. Third, car function keys, such as "window control keys, light control keys, horn keys". The above is to introduce to you what is a car silicone button. The car silicone button is a button used in the car. It is a button product made of silicone as raw material. The silicone button has excellent heat resistance, cold resistance, and resistance. Environmental resistance, electrical insulation, fatigue resistance and other characteristics, so it is usually referred to as "car silicone button". There are a lot of buttons in the current car interior, so what do you know. The following small series will show you what you know about those car silicone buttons.

MORE
< 1...171819...109 > proceed page