阅读说明：本技术 一种高耐候的酚醛模塑料 (A kind of phenolaldehyde moulding compound of high durable ) 是由 杨犁新 *** 齐丽华 崔惠民 周凯荣 吴斌 于 2019-09-12 设计创作，主要内容包括：本发明公开了一种高耐候的酚醛模塑料,所述高耐候的酚醛模塑料由以下重量份数配比的原料构成：酚醛树脂30~40份,液体酚醛树脂4~8份,固化剂4~8份,固化促进剂0.2~2.0份,纤维材料30~50份,无机填料15~25份,三聚氰胺3~4份,稀土氧化物2~8份,硅油0.5~1.5份,润滑剂0.5~2份,偶联剂0.5~2份,抗氧化剂0.5~2份。通过上述方式,本发明能够通过提高体系内的单体有机硅含量降低体系内的游离的羟基含量提高整体稳定性的同时利用稀土氧化物的强紫外吸收作用降低紫外线对分散在体系内的助剂的影响,提高整体的耐老化性能和机械性能的持续性。(The invention discloses a kind of phenolaldehyde moulding compound of high durable, the phenolaldehyde moulding compound of the high durable is made of the raw material that following parts by weight match: 30 ~ 40 parts of phenolic resin, 4 ~ 8 parts of liquid phenolic resin, 4 ~ 8 parts of curing agent, 0.2 ~ 2.0 part of curing accelerator, 30 ~ 50 parts of fibrous material, 15 ~ 25 parts of inorganic filler, 3 ~ 4 parts of melamine, 2 ~ 8 parts of rare earth oxide, 0.5 ~ 1.5 part of silicone oil, 0.5 ~ 2 part of lubricant, 0.5 ~ 2 part of coupling agent, 0.5 ~ 2 part of antioxidant.Through the above way, influence of the ultraviolet light to the auxiliary agent dispersed within the system is reduced using the strong UV absorption effect of rare earth oxide while the present invention can improve overall stability by the free hydroxy radical content in the monomelic silicone content reduction system in raising system, improves the duration of whole ageing-resistant performance and mechanical performance.)

1. a kind of phenolaldehyde moulding compound of high durable, which is characterized in that the phenolaldehyde moulding compound of the high durable is by following parts by weight The raw material of proportion is constituted:

Phenolic resin 30 ~ 40

Liquid phenolic resin 4 ~ 8

Curing agent 4 ~ 8

Curing accelerator 0.2 ~ 2.0

Fibrous material 30 ~ 50

Inorganic filler 15 ~ 25

Melamine 3 ~ 4

Rare earth oxide 2 ~ 8

Silicone oil 0.5 ~ 1.5

Lubricant 0.5 ~ 2

Silane coupling agent 0.5 ~ 2

Antioxidant 0.5 ~ 2.

2. the phenolaldehyde moulding compound of high durable according to claim 1, which is characterized in that the curing agent is six methines Tetramine, the curing accelerator are activated magnesia or calcium hydroxide.

3. the phenolaldehyde moulding compound of high durable according to claim 1, which is characterized in that the reinforcing fiber materials are by short Glass fibre and cellulose composition are cut, wherein content of cellulose is no more than the 20% of fiber total amount of adding.

4. the phenolaldehyde moulding compound of high durable according to claim 3, which is characterized in that the cellulose is cellulose propionate Element.

5. the phenolaldehyde moulding compound of high durable according to claim 1, which is characterized in that the inorganic filler is nano grade titanium White powder, calcium carbonate, kaolin and glass microballoon it is one or more.

6. the phenolaldehyde moulding compound of high durable according to claim 1, which is characterized in that the rare earth oxide is nanometer The arbitrary proportion mixture of grade rare earth cerium oxide and praseodymium oxide.

7. the phenolaldehyde moulding compound of high durable according to claim 1, which is characterized in that the silicone oil is methyl-silicone oil.

8. the phenolaldehyde moulding compound of high durable according to claim 1, which is characterized in that the antioxidant is anti-for Hinered phenols Oxygen agent.

9. the preparation method that one kind is suitable for the phenolaldehyde moulding compound of high durable described in claim 1 ~ 8, which is characterized in that described Preparation method the following steps are included:

A substrate material) is prepared, the phenolic resin for weighing respective numbers in parts by weight is put into pulverizer and is crushed, powder is obtained The base-material of shape, silicone oil are added in liquid phenolic resin and premix；

B mixture) is prepared, coupling agent, curing agent, curing accelerator, the antioxidant, profit of respective component are sequentially added in base-material Lubrication prescription, inorganic filler, fibre reinforced materials, melamine and rare earth oxide are then slowly added into liquid phenolic resin mixing Uniformly；

C) plasticate, by the mixture obtained by step B) introducing plasticator plasticate, obtain sheet to granulation material；

D it) is granulated, pulverizer crushing will be introduced to granulation material by the sheet that step C) is obtained, then screened, and obtain high durable Phenolaldehyde moulding compound.

10. a kind of preparation method of the phenolaldehyde moulding compound of high durable as claimed in claim 9, which is characterized in that the step B) Middle plasticating temperature control is 90-120 DEG C, and time control of plasticating is 3-5min.

Technical field

The present invention relates to engineering plastics-field of compound material, more particularly to a kind of phenolaldehyde moulding compound of high durable.

Background technique

Phenolaldehyde moulding compound is that all kinds of different nothings are added according to the requirement of processing performance using thermoplastic phenolic resin as substrate Machine or organic filler material are simultaneously aided with corresponding additive and are made, and production procedure is simple, and raw material sources are extensive, cheap, and And there is superfine heat resistance, mechanical property and electrical property and have both good flame retardant property, low smoke rate seldom produces Raw pernicious gas, it has also become mechanical, electric, building, mining, national defence and the indispensable material of other industrial departments.Especially It has been increased with the automobile in China, the explosive of electrical apparatus industry, phenolaldehyde moulding compound is in China since entering 21st century Using further deep.But in actual use we have found that although phenolaldehyde moulding compound high temperature resistance after modified is good It is good, but it some times happens that surface xanthochromia when being used under long-term exposed environments, phenomena such as mechanical performance is decreased obviously, it is not achieved Design requirement limits the application range of phenolaldehyde moulding compound.Such phenomenon why occur mainly has both sides reason a: side Face is the presence of more active hydroxyl and methylene on the strand of phenolic resin used in phenolaldehyde moulding compound, is easy by exposure Because the external causes such as illumination, rainwater lead to active increase under environment, oxidation Yellowing is generated；It on the other hand is in phenolaldehyde moulding compound Containing more filler to improve mechanically and chemically performance, in order to improve the binding ability of filler and phenoplasts, need using each Kind different auxiliary agents, and these auxiliary agents can react failure under long-term ultraviolet light irradiation, lead to phenolaldehyde moulding compound entirety Performance decline even quick aging.

Summary of the invention

The invention mainly solves the technical problem of providing a kind of phenolaldehyde moulding compounds, being capable of environmental resistance with higher Property.

In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of phenolic aldehyde mould of high durable is provided The phenolaldehyde moulding compound of plastics, the high durable is made of the raw material that following parts by weight match:

Phenolic resin 30 ~ 40

Liquid phenolic resin 4 ~ 8

Curing agent 4 ~ 8

Curing accelerator 0.2 ~ 2.0

Fibrous material 30 ~ 50

Inorganic filler 15 ~ 25

Melamine 3 ~ 4

Rare earth oxide 2 ~ 8

Silicone oil 0.5 ~ 1.5

Lubricant 0.5 ~ 2

Silane coupling agent 0.5 ~ 2

Antioxidant 0.5 ~ 2.

In a preferred embodiment of the present invention, the curing agent is hexamethylenetetramine, and the curing accelerator is Activated magnesia or calcium hydroxide.

In a preferred embodiment of the present invention, the reinforcing fiber materials are by short glass fiber and cellulose group At wherein content of cellulose is no more than the 20% of fiber total amount of adding.

In a preferred embodiment of the present invention, the cellulose is cellulose propionate.

In a preferred embodiment of the present invention, the inorganic filler is nano grade titanium white powder, calcium carbonate, kaolin and glass Glass microballon it is one or more.

In a preferred embodiment of the present invention, the rare earth oxide is nano-scale rare earth cerium oxide and praseodymium oxide Arbitrary proportion mixture.

In a preferred embodiment of the present invention, the silicone oil is methyl-silicone oil.

In a preferred embodiment of the present invention, the antioxidant is Hinered phenols antioxidant.

In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of phenolic aldehyde of high durable The preparation method of moulding compound, the preparation method comprises the following steps:

A substrate material) is prepared, the phenolic resin for weighing respective numbers in parts by weight is put into pulverizer and is crushed, powder is obtained The base-material of shape, silicone oil are added in liquid phenolic resin and premix；

B mixture) is prepared, coupling agent, curing agent, curing accelerator, the antioxidant, profit of respective component are sequentially added in base-material Lubrication prescription, inorganic filler, fibre reinforced materials, melamine and rare earth oxide are then slowly added into liquid phenolic resin mixing Uniformly；

C) plasticate, by the mixture obtained by step B) introducing plasticator plasticate, obtain sheet to granulation material；

D it) is granulated, pulverizer crushing will be introduced to granulation material by the sheet that step C) is obtained, then screened, and obtain high durable Phenolaldehyde moulding compound.

In a preferred embodiment of the present invention, the step B) in plasticating temperature control be 90-120 DEG C, plasticate the time Control is 3-5min.

The beneficial effects of the present invention are: the technical scheme is that being added in conventional phenolaldehyde moulding compound formula system Silicone oil and rare earth oxide reduce body on the one hand by the free hydroxyl group in the monomelic silicone molecule absorption system in silicone oil The hydroxy radical content to dissociate in system, improves the stability of system, on the other hand, is acted on using the strong UV absorption of rare earth oxide, Influence of the ultraviolet light to the auxiliary agent dispersed within the system is reduced, the duration of whole ageing-resistant performance and mechanical performance is improved, In addition to this, it is also added into the melamine of color inhibition in system, can act synergistically, further improve with rare earth oxide The tolerance to climate of phenolaldehyde moulding compound.

Specific embodiment

The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.

The embodiment of the present invention includes: