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A kind of foam ceiling and preparation method thereof

A ceiling and foaming agent technology, applied in the field of foam ceiling and its preparation, can solve the problems of low elongation at break, low tensile strength, high ceiling density, etc.

Inactive Publication Date: 2016-05-11
湖北德居沃家新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above technical problems, the present application provides a foamed ceiling and its preparation method, which solves the technical problems of existing ceilings such as high relative density, low tensile strength, low impact strength and low elongation at break.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 100 parts of LDPE according to the weight ratio; 0.5 parts of stearic acid; 30 parts of DOP; 1.5 parts of barium stearate; 70 parts of calcium carbonate; 1 part of dibutyl tin laurate; 10 parts of zinc borate; n-butyl stearate 2 parts; 3 parts of zinc stearate; 0.2 parts of dihydroxytetramethoxybenzophenone; 0.5 parts of antioxidant DLTP; 1 part of triphenyl phosphite; 5 parts of AC foaming agent; 15 parts of MBS ; 6 parts of chlorinated paraffin.

[0022] LDPE, stearic acid, DOP, barium stearate, calcium carbonate, dibutyl tin laurate, n-butyl stearate and zinc stearate were mixed on a two-roll plastic mill at a surface temperature of 130°C.

[0023] Add triphenyl phosphite and AC foaming agent and mix twice, then add the remaining raw materials, knead twice, and then produce the sheet; foam and mold on a multi-layer vulcanizer at a temperature of 180°C and a molding time of 20s.

[0024] The relative density of the product is 0.5, the bending strength is 8MPa; the ten...

Embodiment 2

[0027] Weigh 100 parts of LDPE according to the parts by weight; 1.5 parts of stearic acid; 50 parts of DOP; 3.5 parts of barium stearate; 90 parts of calcium carbonate; 3 parts of dibutyltin laurate; 30 parts of zinc borate; n-butyl stearate 4 parts; 7 parts of zinc stearate; 0.6 parts of dihydroxytetramethoxybenzophenone; 2.5 parts of antioxidant DLTP; 5 parts of triphenyl phosphite; 25 parts of AC foaming agent; 35 parts of MBS ; 10 parts of chlorinated paraffin.

[0028] LDPE, stearic acid, DOP, barium stearate, calcium carbonate, dibutyltin laurate, n-butyl stearate and zinc stearate were mixed on a two-roll plastic mill at a surface temperature of 150°C.

[0029] Add triphenyl phosphite and AC foaming agent and mix twice, then add the remaining raw materials, knead twice, and then produce the sheet; foam molding on a multi-layer vulcanizer, molding temperature 240 ℃, molding time 60s.

[0030] The relative density of the product is 0.4, the bending strength is 9MPa; the tensil...

Embodiment 3

[0033] Weigh 100 parts of LDPE according to the parts by weight; 0.8 parts of stearic acid; 35 parts of DOP; 2 parts of barium stearate; 75 parts of calcium carbonate; 1.5 parts of dibutyltin laurate; 15 parts of antimony trioxide; 2.5 parts of butyl ester; 4 parts of zinc stearate; 0.3 parts of dihydroxytetramethoxybenzophenone; 1 part of CA antioxidant; 2 parts of triphenyl phosphite; 10 parts of AC foaming agent; MBS20 Parts; 7 parts of chlorinated paraffin.

[0034] LDPE, stearic acid, DOP, barium stearate, calcium carbonate, dibutyltin laurate, n-butyl stearate and zinc stearate were mixed on a two-roll plastic mill at a surface temperature of 135°C.

[0035] Add triphenyl phosphite and AC foaming agent and mix twice, then add the remaining raw materials, knead twice, and then produce tablets; foam and mold on a multi-layer vulcanizer at a temperature of 200°C and a molding time of 30s.

[0036] The relative density of the product is 0.3, the bending strength is 10MPa; the tens...

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Abstract

The invention discloses a foamed ceiling and a preparation method thereof. The preparation method comprises the following steps: in parts by weight, weighing LDPE (low-density polyethylene), stearic acid, DOP (dioctyl phthalate), barium stearate, calcium carbonate, dibutyl tin dialurate, a flame retardant, n-butyl stearate, zinc stearate, dihydroxyl tetramethoxy diphenyl ketone, an antioxidant, triphenyl phosphate, an AC (azodicarbonamide) foaming agent, MBS (methyl methacrylate) and chlorinated paraffin, plastifying, discharging, foaming and performing mould pressing to obtain the foamed ceiling. According to the foamed ceiling, the relative density is 0.1-0.5, the bending strength is 8-12Mpa, the tensile strength is 1.8-2.2Mpa, the gap impact strength at 80 DEG C is 20-25kJ / m<2>, the break elongation rate is 240%-260%, the shore hardness is 45-65, and the vicat softening point is 90-110 DEG C.

Description

Technical field [0001] The application belongs to the field of ceiling preparation technology, and in particular relates to a foamed ceiling and a preparation method thereof. Background technique [0002] Ceiling is the general term for decorative indoor roof materials. In the past, traditional dwellings mostly used straw mats, reed mats, and wooden boards as the main materials. With the advancement of technology, more modern building materials are applied. In the past, people's impression of the ceiling was only on "a piece of white cement", but they did not realize that the ceiling occupies an extremely important position in home decoration. In addition, ceiling decoration should also play a role in covering beams, columns, pipelines, heat and sound insulation. In addition, the ceiling design is wonderful and changeable, each of which can create different decorative effects. Reserve a lamp slot for lighting: This is the most basic function of the ceiling. Various lamps are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L51/04C08K13/02C08K5/09C08K5/12C08K5/098C08K3/26C08K5/101C08K5/02C08K3/22C08K3/38C08K5/526C08J9/10B29C43/58
CPCB29C43/58C08J9/0061C08J9/103C08J2203/04C08J2323/06C08J2451/04C08K2201/014C08L23/06C08L2201/02C08L2203/14C08L2205/03C08L2207/066C08L51/04C08L91/06C08K13/02C08K5/09C08K5/098C08K2003/265C08K3/38C08K5/132C08K5/526
Inventor 赵焕
Owner 湖北德居沃家新材料科技有限公司
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