Modified PP foaming material and preparation method thereof

A foamed material and modified technology, applied in the field of modified PP foamed material and its preparation, can solve the problems of unsatisfactory sound insulation and heat insulation effect, poor foaming effect, weak external force tolerance, etc., and achieve good insulation effect. Thermal effect, improve sound insulation and heat insulation effect, strong resistance to external force

Inactive Publication Date: 2019-09-24
SHANDONG SHOUGUANG LUQING PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The PP foamed sheet of the prior art also has the following technical defects: (1) poor flexibility, hard and brittle; (2) poor mechanical properties, weak resistance to external force; (3) poor foaming effect, Sound insulation is not ideal

Method used

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  • Modified PP foaming material and preparation method thereof
  • Modified PP foaming material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 A modified PP foam material

[0036] A kind of preparation method of modified PP foam material comprises the following steps:

[0037] Step 1. Raw material preparation

[0038] The raw material that adopts comprises the component of following weight portion:

[0039] 49 parts of PP, 10 parts of polycarbonate, 6 parts of silica gel, 7.5 parts of maleic anhydride graft copolymer, 1 part of calcium carbonate, 9 parts of hydrogenated naphthenic oil, 2 parts of glycerin, and 1.3 parts of special foaming agent.

[0040] The raw material of described special foaming agent comprises: diisopropyl azodicarbonate, azobisisobutyronitrile, Na 2 HCO 3 , copper oxide, sodium stearate, the weight ratio is 4:2:1:0.4:0.8.

[0041] Prepare the raw materials according to the above ratio and set aside.

[0042] Step 2. Premix

[0043] Mix PP, polycarbonate, silica gel, maleic anhydride graft copolymer and calcium carbonate uniformly with a high-speed mixer to obtain a premix...

Embodiment 2

[0055] Example 2 A modified PP foam material

[0056] A kind of preparation method of modified PP foam material comprises the following steps:

[0057] Step 1. Raw material preparation

[0058] The raw material that adopts comprises the component of following weight portion:

[0059] 52 parts of PP, 15 parts of polycarbonate, 10 parts of silica gel, 5 parts of maleic anhydride graft copolymer, 1.5 parts of calcium carbonate, 7 parts of hydrogenated naphthenic oil, 3 parts of glycerin, and 0.9 parts of special foaming agent.

[0060] The raw material of described special foaming agent comprises: diisopropyl azodicarbonate, azobisisobutyronitrile, Na 2 HCO 3 , copper oxide, sodium stearate, the weight ratio is 4:2:1:0.4:0.8.

[0061] Prepare the raw materials according to the above ratio and set aside.

[0062] Step 2. Premix

[0063] Mix PP, polycarbonate, silica gel, maleic anhydride graft copolymer and calcium carbonate uniformly with a high-speed mixer to obtain a prem...

Embodiment 3

[0075] Example 3 A modified PP foam material

[0076] A kind of preparation method of modified PP foam material comprises the following steps:

[0077] Step 1. Raw material preparation

[0078] The raw material that adopts comprises the component of following weight portion:

[0079] 50 parts of PP, 13 parts of polycarbonate, 8 parts of silica gel, 6 parts of maleic anhydride graft copolymer, 1.1 parts of calcium carbonate, 8 parts of hydrogenated naphthenic oil, 2.6 parts of glycerin, and 1.1 parts of special foaming agent.

[0080] The raw material of described special foaming agent comprises: diisopropyl azodicarbonate, azobisisobutyronitrile, Na 2 HCO 3 , copper oxide, sodium stearate, the weight ratio is 4:2:1:0.4:0.8.

[0081] Prepare the raw materials according to the above ratio and set aside.

[0082] Step 2. Premix

[0083] Mix PP, polycarbonate, silica gel, maleic anhydride graft copolymer and calcium carbonate uniformly with a high-speed mixer to obtain a pre...

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Abstract

The invention provides a modified PP foaming material. The foaming material is characterized by comprising the following raw materials: PP, polycarbonate, silica gel, a maleic anhydride graft copolymer, calcium carbonate, hydrogenated naphthenic oil, glycerin and a special foaming agent. The foaming material has a density of less than 1.02 g/cm<3> and a thermal conductivity coefficient of <= 0.027 W/m*K. The product provided by the invention has high softness, times of resistance to bending of up to 2500-3000 times, a high heat-deformation-resistant temperature, high-temperature resistance of 140-160 DEG C, a low-temperature-deformation-resistant temperature of up to -35 DEG C to -40 DEG C and tensile strength of up to 240-270 Mpa.

Description

technical field [0001] The invention relates to a modified PP foam material and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] PP has high rigidity, excellent mechanical properties, good heat resistance and chemical stability. The thermal conductivity of foamed PP is lower than that of foamed polyethylene, it has good heat insulation and can withstand boiling water, so it can be used as a high-grade heat insulation material. Due to the high melting temperature and narrow range of conventional pure PP, the melt viscosity of non-crosslinked polypropylene drops sharply with the rise of temperature, and the viscosity range suitable for foaming is extremely narrow, and it is not easy to foam. The foam material is brittle and lacks elasticity. [0003] With the improvement of people's living standards, more and more attention has been paid to the sound insulation and heat insulation effect of buildings in the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L69/00C08L51/00C08K3/26C08K5/053C08J9/10C08J9/08C08J9/00C08J9/04
CPCC08J9/0023C08J9/0066C08J9/0095C08J9/04C08J9/08C08J9/102C08J9/103C08J2203/02C08J2203/04C08J2203/20C08J2323/12C08J2451/00C08J2469/00C08K5/053C08K2003/265
Inventor 王学清王桂平王荣浩马千鹏
Owner SHANDONG SHOUGUANG LUQING PETROCHEM
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