A flame-retardant and heat-insulating polyvinyl chloride foam material and its preparation method

A polyvinyl chloride foam and glycidyl ether technology, which is applied in the field of foam materials, can solve the problems of high addition amount, reduced thermal conductivity of foam materials, poor thermal insulation performance and heat resistance performance of foam materials, etc. Effects of Small Cell Diameter, Excellent Thermal Insulation and Heat Resistance

Active Publication Date: 2019-03-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, most of the flame retardants added to polyvinyl chloride foam materials are organic small molecular substances, and the addition amount is large, which is not conducive to reducing the thermal conductivity of the foam material, resulting in poor heat insulation performance and heat resistance of the foam material. bad question

Method used

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  • A flame-retardant and heat-insulating polyvinyl chloride foam material and its preparation method
  • A flame-retardant and heat-insulating polyvinyl chloride foam material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The polyvinyl chloride foam material of flame-retardant heat insulation, by the polyvinyl chloride resin of 100 weight parts, the phthalic anhydride of 80 weight parts, the bisphenol A glycidyl ether of 20 weight parts, the TDI of 30 weight parts, the TDI of 15 weight parts Parts of AIBN, 4 parts by weight of N', N", N"'-tris(dimethylaminopropyl) symmetrical hexahydrotriazine, 3 parts by weight of Tween 80, 10 parts by weight of antimony trioxide and 5 parts by weight of graphite powder (100 mesh) composition.

[0033] Preparation of the above-mentioned flame-retardant and heat-insulating polyvinyl chloride foam material: After mixing the above-mentioned components uniformly by weight, put them into the mold, preheat at 50°C for 30min, then increase the pressure to 30MPa, raise the temperature to 150°C, and press The time is 50s / mm, and finally the mold is opened after cooling to 40°C to obtain a foamed molded article; then, the obtained foamed molded article is subject...

Embodiment 2

[0035] The flame-retardant and heat-insulating polyvinyl chloride foam material consists of 100 parts by weight of polyvinyl chloride resin, 150 parts by weight of liquefied MDI, 1 part by weight of AC, 2 parts by weight of indole, 2 parts by weight of DC-193, 5 It consists of antimony trioxide in parts by weight and graphite powder (15000 mesh) in parts by weight.

[0036] Preparation of the above-mentioned flame-retardant and heat-insulating polyvinyl chloride foam material: After mixing the above-mentioned components uniformly by weight, put them into the mold, preheat at 110°C for 5 minutes, then increase the pressure to 11MPa, raise the temperature to 200°C, and press The time is 30s / mm, and finally the mold is opened after cooling to 90°C to obtain a foamed molded object; then, in water vapor, the obtained foamed molded object is subjected to secondary foaming and solidification, and the temperature of the secondary foaming is 100°C , the curing temperature is 70°C, and ...

Embodiment 3

[0038] The polyvinyl chloride foam material of flame-retardant heat insulation, by the polyvinyl chloride resin of 100 weight parts, the succinic anhydride of 50 weight parts, the tetrahydrophthalic anhydride of 10 weight parts, the glycerol glycidyl ether of 10 weight parts, 60 weight parts PAPI, 10 parts by weight of blowing agent H, 3 parts by weight of Tween 80, 5 parts by weight of antimony trioxide and 0.1 parts by weight of graphite powder (400 mesh).

[0039] Preparation of the above-mentioned flame-retardant and heat-insulating polyvinyl chloride foam material: After mixing the above-mentioned components uniformly by weight, put them into the mold, preheat at 90°C for 20min, then increase the pressure to 15MPa, raise the temperature to 180°C, and press The time is 40s / mm, and finally cooled to 110°C and then the mold is opened to obtain a foamed molded object; then, in water, the obtained foamed molded object is subjected to secondary foaming and curing, the temperatur...

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Abstract

The invention discloses a flame-retardant heat-insulating polyvinyl chloride foam material and a preparation method thereof, belongs to the technical field of foam materials, and aims to solve the problems of relatively poor heat-insulating performance and relatively poor heat resistance of the foam materials since flame retardants added into the foam materials are mostly organic small molecular substances and are added in a large quantity, and the heat conductivity of the foam materials are difficult to lower in the prior art. The polyvinyl chloride foam material is prepared from the following components in parts by weight: 100 parts of polyvinyl chloride resin, 0 to 80 parts of acid anhydride, 0 to 20 parts of epoxy compound, 30 to 150 parts of isocyanate, 1 to 15 parts of foaming agent, 0 to 4 parts of catalyst, 0 to 3 parts of surfactant, 0.5 to 10 parts of antimony trioxide, and 0.1 to 5 parts of graphite powder of 100 to 15,000 meshes. The foam material has good flame retardant property, low heat conductivity, and superior heat-insulating performance and heat resistance.

Description

technical field [0001] The invention belongs to the technical field of foam materials, and in particular relates to a flame-retardant and heat-insulating polyvinyl chloride foam material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) foam is widely used in construction, building materials, decoration, furniture, advertising, automobiles and other industries due to its wide service temperature and good corrosion resistance. In the prior art, the components of rigid polyvinyl chloride cross-linked foam mainly include polyvinyl chloride resin, foaming agent (such as azobisisobutyronitrile and azodicarbonamide), isocyanate (such as toluene diisocyanate, Carbodiimide - uretonimine modified 4,4'-diphenylmethane diisocyanate) and anhydrides (such as maleic anhydride, phthalic anhydride). The preparation method is as follows: first mix the solid material and the liquid material to obtain the paste material, then pour the paste material into...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L75/04C08L75/14C08K13/02C08K3/22C08K3/04C08K3/26C08K5/098C08J9/10C08J9/08
CPCC08J9/08C08J9/102C08J9/103C08J9/107C08J2203/04C08J2203/10C08J2203/18C08J2327/06C08K2201/003C08L27/06C08L75/04C08L75/14C08L2201/02C08L2203/14C08L71/02C08K13/02C08K3/2279C08K3/04C08L83/12C08K5/098C08K2003/265
Inventor 唐涛姜治伟薛俭
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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