CN102964621A - Composite foaming agent for rigid PVC foam material - Google Patents
Composite foaming agent for rigid PVC foam material Download PDFInfo
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- CN102964621A CN102964621A CN201210415954XA CN201210415954A CN102964621A CN 102964621 A CN102964621 A CN 102964621A CN 201210415954X A CN201210415954X A CN 201210415954XA CN 201210415954 A CN201210415954 A CN 201210415954A CN 102964621 A CN102964621 A CN 102964621A
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- foaming agent
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- pvc foam
- rigid pvc
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Abstract
The invention discloses a composite foaming agent for a rigid PVC foam material. The foaming agent comprises the following raw materials, by weight: 5-10 parts of azodicarbonamide, 2-4 parts of diethyl azodicarboxylate, 2-3 parts of OBSH, 0.5-1.5 parts of lauryl sodium sulfate, 1-2 parts of sodium bicarbonate, 1-2 parts of zinc carbonate, 1-3 parts of urea, 0.5-0.8 part of lead stearate, 2-4 parts of citric acid, and 15-20 parts of glycol propyl ether. According to the invention, raw materials including urea, zinc carbonate, sodium bicarbonate, sodium dodecyl sulfate are adopted for modification of azodicarbonamide to prepare the composite foaming agent for rigid PVC foam material; and the composite foaming agent has advantages of decomposition temperature within the range of molding processing of rigid PVC foam material, basically balanced heat absorption-release, smooth decomposition rate, large deflating amount and no abruptness. The rigid PVC material prepared from the composite foaming agent has good mechanical properties, uniform and fine pores, thin pore wall, easily controlled processing conditions, and no emergence of burning.
Description
Technical field
The present invention relates to a kind of whipping agent, be specifically related to a kind of hard PVC foam material composite foamable agent.
Background technology
Since the hard PVC porous plastics comes out, because it not only has the advantage that much is similar to natural timber, advantages such as also having good flame resistance, be difficult for the moisture absorption, thermal conductivity is low, heat insulation performance good, opposing insect invasive ability is strong, the hard PVC foam material has all successfully replaced natural timber in a lot of fields, has had simultaneously very stable market and the development prospect in future very considerable in the whole world.In the machine-shaping process of hard PVC foam material, Cellmic C 121 is a kind of organic blowing agent commonly used, has the advantages such as particle is tiny, low price, discharge quantity is large, nontoxic, self-extinguishing is good.Yet the decomposition temperature of Cellmic C 121 is higher, the temperature range that has exceeded the polyvinyl chloride resin forming process, and Cellmic C 121 is a kind of strong heat release type whipping agent, can produce local superheating when decomposition rate is too fast and get angry sudden, not only can cause foaming inhomogeneous, also can cause the decomposition of polyvinyl chloride resin, make the condition of machine-shaping be difficult to control.Therefore use separately Cellmic C 121 to be difficult to satisfy the requirement of hard PVC foam material complete processing as whipping agent.
Summary of the invention
The purpose of this invention is to provide a kind of hard PVC foam material composite foamable agent, make the requirement of its hard PVC foam material complete processing.
The technical solution used in the present invention is as follows:
A kind of hard PVC foam material composite foamable agent is comprised of the raw material of following weight part:
Cellmic C 121 5-10 part
Diethyl azodiformate 2-4 part
4,4-disulfonyl hydrazide diphenyl ether 2-3 part
Sodium lauryl sulphate 0.5-1.5 part
Sodium bicarbonate 1-2 part
Zinc carbonate 1-2 part
Urea 1-3 part
Lead stearate 0.5-0.8 part
Citric acid 2-4 part
Glycol propyl ether 15-20 part
Preferably, a kind of hard PVC foam material composite foamable agent is comprised of the raw material of following weight part:
8 parts of Cellmic C 121s
3 parts of diethyl azodiformates
2.5 parts of 4,4-disulfonyl hydrazide diphenyl ethers
1.2 parts of sodium lauryl sulphate
1.5 parts of sodium bicarbonates
1.8 parts of zinc carbonates
2.5 parts in urea
0.6 part of lead stearate
3 parts of citric acids
16 parts of glycol propyl ethers
Beneficial effect of the present invention:
The present invention adopts the raw materials such as urea, zinc carbonate, sodium bicarbonate, sodium lauryl sulphate, and modification prepares hard PVC foam material composite foamable agent to Cellmic C 121, decomposition temperature is in the foaming material shaped work range of hard PVC, suction-heat release is in a basic balance, rate of decomposition is mild, and discharge quantity is large and without sudden.Adopt the hard PVC material good mechanical properties of this composite foamable agent preparation, abscess is evenly fine and closely woven, and hole wall is thinner, and fabrication process condition is easily controlled, can not occur burnt, burn phenomenon.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment
A kind of hard PVC foam material composite foamable agent is comprised of the raw material of following weight part:
8 parts of Cellmic C 121s
3 parts of diethyl azodiformates
2.5 parts of 4,4-disulfonyl hydrazide diphenyl ethers
1.2 parts of sodium lauryl sulphate
1.5 parts of sodium bicarbonates
1.8 parts of zinc carbonates
2.5 parts in urea
0.6 part of lead stearate
3 parts of citric acids
16 parts of glycol propyl ethers
Composite foamable agent of the present invention is a kind of foaming agent of high comprehensive performance.In order to verify that the above results carried out contrast experiment's research, study it to the impact of hard PVC foaming material performance take pure Cellmic C 121 and composite foamable agent of the present invention as whipping agent respectively, detected result is as shown in table 1.
Table 1
As shown in Table 1, for single whipping agent, the foam material density of using composite foamable agent to make is less, and frothing percentage is larger, and is inner without burning phenomenon, and tensile strength, compressive strength, hardness are all well a lot of than the foam material that uses single whipping agent to make.
Claims (2)
1. a hard PVC foam material composite foamable agent is characterized in that, is comprised of the raw material of following weight part:
Cellmic C 121 5-10 part
Diethyl azodiformate 2-4 part
4,4-disulfonyl hydrazide diphenyl ether 2-3 part
Sodium lauryl sulphate 0.5-1.5 part
Sodium bicarbonate 1-2 part
Zinc carbonate 1-2 part
Urea 1-3 part
Lead stearate 0.5-0.8 part
Citric acid 2-4 part
Glycol propyl ether 15-20 part.
2. hard PVC foam material composite foamable agent according to claim 1 is characterized in that, is comprised of the raw material of following weight part:
8 parts of Cellmic C 121s
3 parts of diethyl azodiformates
2.5 parts of 4,4-disulfonyl hydrazide diphenyl ethers
1.2 parts of sodium lauryl sulphate
1.5 parts of sodium bicarbonates
1.8 parts of zinc carbonates
2.5 parts in urea
0.6 part of lead stearate
3 parts of citric acids
16 parts of glycol propyl ethers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415954XA CN102964621A (en) | 2012-10-26 | 2012-10-26 | Composite foaming agent for rigid PVC foam material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415954XA CN102964621A (en) | 2012-10-26 | 2012-10-26 | Composite foaming agent for rigid PVC foam material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102964621A true CN102964621A (en) | 2013-03-13 |
Family
ID=47795073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210415954XA Pending CN102964621A (en) | 2012-10-26 | 2012-10-26 | Composite foaming agent for rigid PVC foam material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102964621A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275420A (en) * | 2013-05-31 | 2013-09-04 | 苏州市景荣科技有限公司 | PVC (polyvinyl chloride) material composite foaming agent and preparation method thereof |
| CN109734952A (en) * | 2018-12-30 | 2019-05-10 | 安徽科居新材料科技有限公司 | Composite foamable agent |
| EP3388477B1 (en) | 2017-04-11 | 2019-11-20 | Armacell Enterprise GmbH & Co. KG | Expansion system for flexible insulation foams |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585465A (en) * | 2012-01-05 | 2012-07-18 | 南京航空航天大学 | Hollow microsphere reinforced polylactic acid (PLA)-based composite foaming material and preparation method thereof |
-
2012
- 2012-10-26 CN CN201210415954XA patent/CN102964621A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585465A (en) * | 2012-01-05 | 2012-07-18 | 南京航空航天大学 | Hollow microsphere reinforced polylactic acid (PLA)-based composite foaming material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谢志强等: "硬质聚氯乙烯用复合发泡剂的研究", 《功能材料》, vol. 43, no. 7, 15 April 2012 (2012-04-15), pages 936 - 939 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275420A (en) * | 2013-05-31 | 2013-09-04 | 苏州市景荣科技有限公司 | PVC (polyvinyl chloride) material composite foaming agent and preparation method thereof |
| CN103275420B (en) * | 2013-05-31 | 2016-01-06 | 重庆大佛塑料有限公司 | A kind of PVC material composite foamable agent and preparation method thereof |
| EP3388477B1 (en) | 2017-04-11 | 2019-11-20 | Armacell Enterprise GmbH & Co. KG | Expansion system for flexible insulation foams |
| CN109734952A (en) * | 2018-12-30 | 2019-05-10 | 安徽科居新材料科技有限公司 | Composite foamable agent |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130313 |