Halogen-free flame retardant weldable elastic water proof building sheet material

An elastomer and sheet technology, used in building thermal insulation materials, buildings, building components, etc., can solve the problem of little research on flame retardant, and achieve good weathering resistance, high elongation at break, and penetration resistance. Good results

Inactive Publication Date: 2009-02-11
DALIAN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TPO waterproof sheet is a new type of building waterproof material in wat

Method used

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  • Halogen-free flame retardant weldable elastic water proof building sheet material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Preparation of halogen-free flame-retardant weldable elastomer waterproof building sheet with inorganic flame retardant, the specific preparation process is as follows:

[0023] The first step is to prepare a flame retardant, put 50 parts by weight of magnesium hydroxide into a high-mixer, heat up and stir to exhaust. When the temperature reaches about 90°C, mix 10 parts by weight of titanate with 20 parts by weight of white oil, pour it into a high-speed mixer, and continue heating and mixing for 15 minutes to obtain modified magnesium hydroxide, which is a flame retardant.

[0024] In the second step, 100 parts by weight of the matrix resin and 120 parts by weight of the flame retardant are mixed with thermoplastic polyolefin elastomer (TPO) as the matrix resin and modified magnesium hydroxide as the flame retardant.

[0025] The third step is to plasticize the mixed material at 130-150° C. with two rollers, and use a flat vulcanizing machine at 160-170° C....

Embodiment 2

[0027] Example 2: 70 parts by weight of ammonium dihydrogen phosphate is used as a flame retardant, mixed with 100 parts by weight of TPO, the mixed material is masticated at 135 °C with twin rolls, and hot-pressed at 168 °C using a flat vulcanizer to obtain a sheet . The sample is prepared according to international standards. After mixing, the measured oxygen index reaches 25.9, the vertical combustion reaches FV-0 level, and the elongation at break can reach 341.85%.

Embodiment 3

[0028] Example 3: A halogen-free flame-retardant weldable elastomeric waterproof building sheet is prepared with an intumescent flame retardant. The specific preparation process is as follows:

[0029] The first step is to prepare a flame retardant, 30 parts of ammonium dihydrogen phosphate and 10 parts of starch are mixed to obtain an intumescent flame retardant.

[0030] The second step is to use thermoplastic polyolefin elastomer (TPO) as the matrix resin, and mix 100 parts by weight of the matrix resin with 120 parts by weight of the flame retardant.

[0031] The third step is to plasticize the mixed material at 130-150° C. with two rollers, and use a flat vulcanizing machine at 160-170° C. to form it by hot pressing to obtain a sheet.

[0032] The fourth step is to prepare the sample according to the international standard. After the actual measurement, the oxygen index is increased by 28.3%, and the elongation at break can reach 469.4%.

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Abstract

The invention relates to a halogen-free inflaming retarding water-proof construction sheet of a weldable elastomer; TPO is taken as a matrix resin; the matrix resin is mixed with flame retardants according to a proportion; the mixed material is plasticated by two rollers under the temperature of 130 to 150 DEG C and is shaped in a hot-press way by a flat vulcanizing machine under the temperature of 160 to 170 DEG C to obtain the sheet; wherein, the flame retardants are divided into an inorganic flame retardant and an expansion flame retardant; the inorganic flame retardant is modified magnesium hydrate; expansion flame retardant is mixed and compositely prepared by monoammonium phosphate, faecula and magnesium hydrate. The halogen-free inflaming retarding water-proof construction sheet of the weldable elastomer has the advantages of effective flame retardation and excellent comprehensive mechanical property as well as being capable of improving the durability and the weatherability.

Description

technical field [0001] The invention relates to a preparation technology of a halogen-free flame-retardant weldable elastic body waterproof building sheet. technical background [0002] Thermoplastic polyolefin elastomer (TPO) is an important thermoplastic elastomer. It is an elastomer material composed of rubber and polyolefin. It has high elasticity, high strength, high elongation and good low temperature performance; it also has excellent Excellent heat resistance, aging resistance and anti-ultraviolet performance, rubber elasticity at room temperature, low density, large bending, high low-temperature impact resistance, easy processing, reusable and other advantages, widely used in automotive parts, electrical and electronic, building sealing, Sports equipment, machinery industry and other fields. TPO waterproof sheet is a new type of building waterproof material in waterproof engineering, but there are few studies on its flame retardancy. [0003] TPO is located betwee...

Claims

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Application Information

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IPC IPC(8): C08L23/00C08K9/04C08K3/32C08K3/22C08L3/02E04B1/66E04B1/684E04B1/94B29B7/72B29C43/58
Inventor 冯钠
Owner DALIAN POLYTECHNIC UNIVERSITY
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